Low molecular weight, modified reaction product of bisphenol-A/bisphenol-F based liquid epoxy resin. Possesses low viscosity, no reactive diluent, lower tendency to crystallize than standard...
Semi-solid reaction product of epichlorohydrin and bisphenol-A dissolved in xylene. Used in adhesives. Can also be used as a modifier for other epoxy resins to improve impact strength,...
Reaction product of epichlorohydrin with bisphenol-A and bisphenol-F.
Offers crystallisation resistance. Compatible with common liquid epoxy resins. Can be blended with other materials (diluents,...
Reaction product of epichlorohydrin with bisphenol-A and bisphenol-F.
Offers crystallization resistance. Compatible with common liquid epoxy resins. Can be blended with other materials...
Diluent free, low viscosity, reaction product of bisphenol-A and bisphenol-F with epichlorohydrin. Offers crystallization resistance. Compatible with common liquid epoxy resins. Can be blended with...
Ultra high molecular weight solid reaction product of epichlorohydrin
and bisphenol-A dissolved in methyl ethyl ketone .
Offers the hardness, flexibility, toughness, adhesion
and chemical resistance...
2-Propenoic Acid, Ethyl Ester. Used in adhesives and sealants for production of homopolymers. When used in latex paint formulations, shows good water resistance, low temperature flexibility and very...
Stable chlorosulfonated polyethylene rubber. Used in adhesive and sealant for automotive applications. Possesses very good resistance to very good chemical resistance, very good weathering resistance,...
Semicrystalline elastomeric product. Ethylene and styrene copolymer.
Provides very good abrasion resistance, low temperature toughness and impact strength, high creep resistance, low modulus for good...
Amorphous semi-rigid product. Ethylene and styrene copolymer. Provides good clarity with high gloss, very good printability, thermoformability, and high tensile strength tough films. Also offers good...
Polyurethane >> PU - Isocyanates >> MDI, diphenylmethane diisocyanates >> Pure MDI
Pure MDI mixture. Possesses high purity, low acidity and reproducible reactivity. Used in the preparation of prepolymers for polyurethane processing.
4,4'-diphenylmethane diisocyanate:...
Polycarbodiimide-modified diphenylmethane diisocyanate. Possesses extra
flexibility and stabilization against hydrolytic degradation. Can be used alone or in mixtures with prepolymers.
Monomeric MDI. White to lightyellow crystalline fused solid of high
purity and low acidity. Yields linear thermoplastic urethane elastomers and elastoplastic products.
4,4'-diphenylmethane...
Monomeric MDI. White to lightyellow crystalline fused solid of high
purity and low acidity. Yields linear thermoplastic urethane elastomers and elastoplastic products.
4,4'-diphenylmethane...
Light-yellow, low viscosity, modified diphenylmethane
diisocyanate containing a high percentage of pure diphenylmethane
diisocyanate, and a lesser amount of polycarbodiimide adducts. Used in the...
Polyurethane >> PU - Isocyanates >> MDI, diphenylmethane diisocyanates
Pure MDI mixture composed of 4,4’-diphenylmethane diisocyanate and
2,4’-diphenylmethane diisocyanate. Used in adhesives and sealants. Offers benefits such as high purity, low acidity and reproducible...
Polyurethane >> PU - Isocyanates >> MDI, diphenylmethane diisocyanates
Pure MDI mixture composed of 4,4’-diphenylmethane diisocyanate and
2,4’-diphenylmethane diisocyanate. Used in adhesives and sealants. Offers benefits such as high purity, low acidity and reproducible...
Polyurethane >> PU - Isocyanates >> MDI, diphenylmethane diisocyanates
Pure MDI mixture composed of 4,4’-diphenylmethane diisocyanate and 2,4’-diphenylmethane diisocyanate. Used in sealants. Offers benefits such as high purity, low acidity and reproducible reactivity.
Polyurethane >> PU - Isocyanates >> MDI, diphenylmethane diisocyanates
Pure MDI mixture composed of 4,4’-diphenylmethane diisocyanate and
2,4’-diphenylmethane diisocyanate. Used in adhesives and sealants. Offers benefits such as high purity, low acidity and reproducible...
Polyurethane >> PU - Isocyanates >> MDI, diphenylmethane diisocyanates
Pure MDI mixture composed of 4,4’-diphenylmethane diisocyanate and
2,4’-diphenylmethane diisocyanate. Used in adhesives and sealants. Offers benefits such as high purity, low acidity and reproducible...
Polycarbodiimide-modified diphenylmethane diisocyanate. Used in adhesives and sealants. Offers benefits such as ease of handling, ease of processing and maintenance of high physical properties under...
Polycarbodiimide-modified diphenylmethane diisocyanate. Used in adhesives and sealants. Offers benefits such as ease of handling, ease of processing and maintenance of high physical properties under...
Polyurethane >> PU - Isocyanates >> MDI, diphenylmethane diisocyanates
High ortho-para MDI. Used in polyurethane adhesives and sealants. Possesses slower reactivity and increased amorphous character for improved handling and longer pot life. Offers benefits such as...
Gel-containing chloroprene polymer. Can be used in contact solvent-based adhesives and mastics that require thixotropic characteristics. May be used as the sole polymer or as a modifier for other...
Sulfur-modified polychloroprene stabilized with a thiuram disulfide and a staining antioxidant. Can be used in applications where resistance to staining or discoloration of finishes is necessary....
Polymethylene polyphenylisocyanate that contains MDI. Possesses a
high reactivity. Suits to a wide variety of applications where demolding and processing times must be kept at a minimum, such as...
Polymethylene polyphenylisocyanate that contains MDI. Possesses a
high functionality and a high viscosity resulting in highly rigid foams. Used where high viscosity is required for processing...
Polymeric MDI. Used in adhesives and sealants. Possesses narrow molecular weight distribution and a high reactivity. Shows compatibility with rigid polyether and polyester polyols, making it suitable...
Polymeric MDI. Used in adhesives and sealants. Possesses high functionality and a relatively high viscosity. Offers benefits such as good resistance to heat distortion, good strength properties at low...
Polymeric MDI. Used in adhesives and sealants. Possesses low viscosity, low functionality, increased diphenylmethane diisocyanate content and increased percentage of orthopara isomers, making it...
Polymeric MDI. Used in adhesives and sealants. Possesses viscosity and functionality, optimized by maintaining a high diphenylmethane diisocyanate content and a high percentage of ortho-para isomers...
Thermoplastic ethylene acrylic acid copolymer. Used as an adhesive layer in composite films or sealant layer in flexible packaging structures. Offers good interlayer adhesion to PE and PA, good...
Thermoplastic ethylene acrylic acid copolymer. Used as a heat seal or adhesive layer in composite films. Offers good optical properties, very good toughness, strength, stress crack and product...
Thermoplastic ethylene acrylic acid copolymer. Used as an adhesive layer of sealant layer in flexible packaging structures. Offers good
sealability, hot tack, very good adhesion to polar materials...
Thermoplastic ethylene acrylic acid copolymer. Used as an adhesive or sealant layer in extrusion coating and extrusion lamination. Offers very good draw-down and edge stability, organoleptic...
Thermoplastic ethylene acrylic acid copolymer. Used as an adhesive or sealant layer in extrusion coating and extrusion lamination. Offers very good draw-down and edge stability, organoleptic...
Thermoplastic ethylene acrylic acid copolymer. Used in high performance sealant or as tie layer. Offers very good draw-down and edge stability, product resistance, hot tack, heat seal, toughness and...
Thermoplastic ethylene acrylic acid copolymer. Used in sealant for foil-based structures. Provides very good adhesion to metallic, paper and polyethylene substrates. Offers good draw-down, heat...
Thermoplastic ethylene acrylic acid copolymer. Used as an adhesive resin for extrusion and coextrusion coating and extrusion lamination or sealant layer. Offers very good adhesion to metallic, paper...
Thermoplastic ethylene acrylic acid copolymer. Used as a sealant and adhesive layer in flexible packaging and liquid packaging laminates. Offers very good adhesion to metallic, paper and PE...
Thermoplastic ethylene acrylic acid copolymer. Used in high performance sealants or as tie layer. Offers product resistance, hot tack, heat seal, toughness, adhesion to metallic, paper and...
Thermoplastic ethylene acrylic acid copolymer. Used as a sealant and adhesive layer in flexible packaging laminates and thin paper coating. Offers very good sealability, hot tack, adhesion to...
Thermoplastic ethylene acrylic acid copolymer. Used in sealants. Offers adhesion to metallic, paper and polyethylene substrates, moisture insensitivity and very good drawdown for downgauged...
Thermoplastic ethylene acrylic acid copolymer. Used as a sealant and adhesive layer for flexible packaging and liquid packaging laminates. Offers very good adhesion to metallic, paper, and PE...
Thermoplastic ethylene acrylic acid copolymer. Used in laminating adhesive for polyethylene and metallized substrates. Offers low heat seal temperature, high hot tack, high gloss, very good clarity,...
Thermoplastic ethylene acrylic acid copolymer. Used as a laminating adhesive for polyethylene and metallized substrates. Offers low heat seal temperature, high hot tack, high gloss, very good clarity,...
Thermoplastic ethylene acrylic acid copolymer. Used in adhesives and heat sealing. Provides low heat seal temperature, high hot tack, high gloss, very good clarity, water, grease and oil resistance,...
Low molecular weight, linear polycaprolactone polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low viscosity, low VOC, low color, high purity and...
Low molecular weight polycaprolactone polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low melt viscosity, exact functionality and long pot life....
Linear polycaprolactone polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low melt viscosity, low VOC, exact functionality and long pot life. Offers...
Linear polycaprolactone polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low melt viscosity, exact functionality and long pot life. Offers very good...
Linear polycaprolactone polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low melt viscosity, low color, high purity, exact functionality and long pot...
Linear polycaprolactone polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low melt viscosity, exact functionality and long pot life. Offers very good...
Very low equivalent weight, tri-functional liquid polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low viscosity, low VOC, exact tri-functionality,...
Low equivalent weight, tri-functional liquid polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low viscosity, low VOC, exact tri-functionality, high...
Low-melting tri-functional liquid polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low melt viscosity, low VOC, exact tri-functionality and long pot...
High purity, low-viscosity, linear polycaprolactone polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low melt viscosity, low color, high purity, exact...
High purity, low-viscosity, colourless, linear polycaprolactone polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low melt viscosity, very high purity...
High purity, low-viscosity, linear polycaprolactone polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low melt viscosity, low color, high purity, exact...
High purity, low-viscosity, linear polycaprolactone polyol. Used in thermoplastic urethane contact and hot melt adhesives, and in sealants. Possesses low melt viscosity, low color, high purity, exact...
High solids, self-crosslinking acrylic latex. Used as binder for sealant applications and in construction adhesives, contact adhesives and pressure sensitive adhesives. Possesses very good quick set,...
High solids, styrene acrylic copolymer. Used in adhesive sealants, laminating adhesives and pressure sensitive adhesives. Possesses high adhesion, unusually high resistance to water and alkali,...
Very stable, economical, high molecular weight, styrene acrylic copolymer. Used in ceramic tile adhesives conforming ANSI A136.1 standards and in exterior insulation adhesives. Possesses small...
High-acrylate, vinyl acrylic copolymer latex. Used in caulks. Possesses very good pigment wetting, better water resistance and low
temperature flexibility as compared to lower acrylate vinyl acrylic...
High solids, all-acrylic latex. Used as binder for high-performance caulks and sealants. Possesses very good adhesion properties, high pigment binding capacity and good exterior durability.
High solids, styrene acrylic copolymer. Used as a binder for high-performance clear and pigmented sealants conforming to ASTM C 920 and ASTM C 834 standards. Possesses wide formulation latitude, low...
Styrene acrylic copolymer. Used in high-performance translucent or pigmented sealants and adhesives. Possesses high pigment binding capacity, low Tg matrix, very good low temperature flexibility and...
Ultralow-viscosity dipolymer of hexafluoropropylene and vinylidene fluoride. Forms a strong bond that can flex without failure after repeated temperature cycling and vibration in adhesives...
Dipolymer of hexafluoropropylene and vinylidene fluoride. Designed for use with a clean molding bisphenol curative. Forms a strong bond that can flex without failure after repeated temperature cycling...
Dipolymer of hexafluoropropylene and vinylidene fluoride, plus cure chemicals. Forms a strong bond that can flex without failure after repeated temperature cycling and vibration in adhesives...
Dipolymer of hexafluoropropylene and vinylidene fluoride, plus cure chemicals. Forms a strong bond that can flex without failure after repeated temperature cycling and vibration in adhesives...
Dipolymer of hexafluoropropylene and vinylidene fluoride, plus cure chemicals and processing aids. Forms a strong bond that can flex without failure after repeated temperature cycling and vibration in...
Dipolymer of hexafluoropropylene and vinylidene fluoride, plus cure chemicals and metal adhesion promoter. Forms a strong bond that can flex without failure after repeated temperature cycling and...
Dipolymer of hexafluoropropylene and vinylidene fluoride, plus cure chemicals. Forms a strong bond that can flex without failure after repeated temperature cycling and vibration in adhesives...
Dipolymer of hexafluoropropylene and vinylidene fluoride. Designed for compression molding of sealing devices. Designed for use with a clean molding bisphenol curative. Forms a strong bond that can...
Dipolymer of hexafluoropropylene and vinylidene fluoride, plus cure chemicals. Forms a strong bond that can flex without failure after repeated temperature cycling and vibration in adhesives...
Fluoroelastomer that may be cured. Offers highviscosity. Gives vulcanizates having a high tensile strength and very good resistance to compression set. Forms a strong bond that can flex without...
Terpolymer of hexafluoropropylene, vinylidene fluoride and tetrafluoroethylene. Forms a strong bond that can flex without failure after repeated temperature cycling and vibration in adhesives...
Terpolymer of hexafluoropropylene, vinylidene fluoride, and
tetrafluoroethylene. Forms a strong bond that can flex without failure after repeated temperature cycling and vibration in adhesives...
Terpolymer of hexafluoropropylene, vinylidene fluoride, and
tetrafluoroethylene, plus cure chemicals. Contains a cure system, bonding promoter and process aid package which has been developed to...
Terpolymer of hexafluoropropylene, vinylidene fluoride, and
tetrafluoroethylene. May be cured. Forms a strong bond that can flex without failure after repeated temperature cycling and vibration in...
Terpolymer of hexafluoropropylene, vinylidene fluoride, and
tetrafluoroethylene, plus cure chemicals. Contains a cure system, bonding promoter and process aid package which has been developed to...
Terpolymer of hexafluoropropylene, vinylidene fluoride, and
tetrafluoroethylene. May be cured with a bisphenol system. Forms a strong bond that can flex without failure after repeated temperature...
Terpolymer of hexafluoropropylene, vinylidene fluoride, and
tetrafluoroethylene, plus cure chemicals. Forms a strong bond that can flex without failure after repeated temperature cycling and vibration...
Incorporated cure terpolymer of hexafluoropropylene, vinylidene fluoride, and tetrafluoroethylene, plus cure chemicals and metal adhesion promoter. Forms a strong bond that can flex without failure...
Premium peroxide curable fluoroelastomer that exhibits the broadest fluids resistance of any Viton fluoroelastomer. Designed for severe service applications that require outstanding resistance to...
Premium peroxide curable fluoroelastomer that exhibits the broadest fluids resistance of any Viton fluoroelastomer. Designed for severe service applications that require outstanding resistance to...
Incorporated cure terpolymer of hexafluoropropylene, vinylidene fluoride, and tetrafluoroethylene. Designed for compression molding of sealing devices. Forms a strong bond that can flex without...
Incorporated cure terpolymer of hexafluoropropylene, vinylidene fluoride, and tetrafluoroethylene. Designed for compression and transfer molding of seals that require high fluids resistance to...
Peroxide curable terpolymer of hexafluoropropylene, vinylidene fluoride, and tetrafluoroethylene. Exhibits hydrocarbon fluid resistance. Designed for transfer and injection molding sealing devices....
Peroxide curable terpolymer of vinylidene fluoride, hexafluoropropylene
and tetrafluoroethylene. Provides high resistance to acids, steam, and water without the need to use lead oxide. Contains a...
Peroxide curable fluoroelastomer. Developed to meet the broader demands of automotive fuel handling systems. Provides both low-temperature sealing performance and medium automotive fuel resistance. ...
Peroxide curable fluoroelastomer. Developed to meet the broader demands of automotive fuel handling systems. Provides both low-temperature sealing performance and medium automotive fuel resistance. ...
Peroxide-curable fluorocarbon elastomer. Provides high strength, resistance to oils and organic fluids, hot water, steam, inorganic acids, and other aqueous media. Can be vulcanized with dihydroxy or...
Peroxide-curable terpolymer of vinylidene fluoride, hexafluoropropylene
and tetrafluoroethylene. Removing the post cure step permits saving costs and improving productivity. Features improved...
Peroxide-curable terpolymer of vinylidene fluoride, hexafluoropropylene
and tetrafluoroethylene. Combines high fluids resistance with improved flow of a lower viscosity polymer. Designed for transfer...
Peroxide-curable terpolymer of perfluoromethyl vinyl ether, vinylidene fluoride and tetra fluoroethylene. Exhibits a very good balance of fluids resistance and low temperature flexibility. Designed...
Peroxide-curable terpolymer of perfluoromethyl vinyl ether, vinylidene fluoride, and tetrafluoroethylene plus a process aid. Combines high fluids resistance and low temperature flexibility with the...
Peroxide-curable terpolymer of perfluoromethyl vinyl ether, vinylidene fluoride, and tetrafluoroethylene. Combines high fluids resistance and low-temperature flexibility with the improved flow of a...
Peroxide curable fluorocarbon elastomer. Designed for low temperature
service. Vulcanized using organic peroxides. Features improved low-temperature flexibility and tensile properties, good low- and...
Peroxide curable terpolymer of perfluoromethyl vinyl ether, vinylidene fluoride and tetrafluoroethylene, plus a process aid. Combines the high fluids resistance and low temperature flexibility with...
Peroxide curable terpolymer of perfluoromethyl vinyl ether, vinylidene fluoride and tetrafluoroethylene, plus a process aid. Combines the high fluids resistance and low temperature flexibility with...
Improved mold release fluoroelastomer designed for compression molding of seals. Combines the high fluids resistance and low temperature flexibility with an improvement in mold release technology....
Bisphenol curative terpolymer of fluoroethylene, vinylidene fluoride, and propylene. Designed for optimized performance in applications
which demand resistance to the very aggressive additive packages...
Bisphenol curative terpolymer of tetrafluoroethylene, vinylidene
fluoride, and propylene. Designed for optimized performance in applications which demand resistance to the very aggressive additive...
Polyurethane components. Used in sealants. Offers benefits such as good dimensional stability, good adhesion properties, good workability, high flowability and short demold time even for high...
Polyurethane components. Used in sealants. Offers benefits such as good adhesion to variety of surfaces, high bending strength and dimensional stability and superior aesthetics.
Polyurethane components. Used in sealants. Offers benefits such as insulating characteristics, easy to cut and shape, good dimensional and thermal stability over a wide range of temperatures.
Polyurethane components. Used in sealants. Offers benefits such as good adhesion to variety of surfaces, easy to install, high bending strength and dimensional stability, good insulation properties,...
Polyurethane components. Used in sealants. Offers benefits such as good adhesion to variety of surfaces, high bending strength, dimensional stability and superior aesthetics.
Polyurethane components. Used in sealants. Offers benefits such as fast, highly automated production, good flowability and density distribution allowing for sophisticated cabinet design.
Polyurethane components. Used in adhesives and sealants. Possesses thermal insulation properties and good adhesion to different facers. Offers benefits such as good durability, good flowability, easy...
Polyurethane component. Used in sealants. Offers advantages such as wide range of stiffness achievable, very wide processing latitude in terms of molding temperature and index range and suitability...
Adhesives two component system. Used in adhesives and sealants for construction, roofing, footwear, pipe treatment, industrial applications, furniture and decorative. Offers benefits such as good...
Polyurethane >> PU - Prepolymers >> Isocyanates >> MDI based
Binders for flexible foam re-bonding. Used in adhesives and sealants for construction, roofing, footwear, pipe, pipe treatment and industrial applications. Offers benefits such as enhanced mechanical...
Binder for flexible foam rebonding. Used in adhesives and sealants for construction, roofing, footwear, pipe treatment and industrial applications. Offers benefits such as enhanced mechanical...
Binders for re-bonding application. Used in adhesives and sealants. Offers benefits such as enhanced mechanical properties, easy processing and workability and solvent-free.
Intermediate viscosity polymethylene polyphenylisocyanate. Used in adhesives and sealants. Offers benefits such as improved foam cure, good
strength properties and better dimensional stabilities.
Intermediate viscosity polymethylene polyphenylisocyanate. Used in adhesives and sealants. Offers benefits such as improved foam cure, good
strength properties and better dimensional stabilities.
Intermediate viscosity polymethylene polyphenylisocyanate. Used in adhesives and sealants. Offers benefits such as improved foam cure, good
strength properties and better dimensional stabilities.
Intermediate viscosity polymethylene polyphenylisocyanate. Used in adhesives and sealants. Offers benefits such as improved foam cure, good
strength properties and better dimensional stabilities.
Propylene glycol initiated diol. Neutralized for use in the production
of prepolymers intended for sealant applications. Can be blended with other polyols and additives giving almost unlimited options...
Polyether diol with medium to low reactivity. Gives flexible elastomers. Can be incorporated in a semi-rigid formulation to increase the strength of the finished product.
Propylene glycol initiated diol. Can be blended with other polyols and
additives giving almost unlimited options in performance and processing in typical sealant formulations.
Capped, low medium reactivity, polyether triol. Used in the manufacture of various urethane products such as elastomers, flexible adhesives and specialty prepolymers for the adhesive and sealant...
Medium reactivity, capped triol. Used in the manufacture of various urethane products such as elastomers and specialty prepolymers for the
adhesive and sealant industry. Can be used in blends with...
Medium reactivity, capped polyether polyol. Used in the manufacture of flexible elastomers and speciality prepolymers for the sealant and adhesive industry. Can be blended with other polyols to...
Polypropylene glycol, propyleneglycol initiated. Neutralised for use in
the production of prepolymers. Can be blended with other polyols and
additives giving almost unlimited options in performance...
Polypropylene glycol, propyleneglycol initiated. Neutralised for use in
the production of prepolymers. Can be blended with other polyols and
additives giving almost unlimited options in performance...
Polypropylene glycol, propylene glycol initiated. Short diol which can
be blended with other polyols for the production of two component
compact or foamed systems and one component prepolymer based...
Polyol. Used in adhesives for food packaging applications where low odour is required. Can be easily blended with other polyols and
additives giving almost unlimited options in performance and...
Polyol. Used in adhesives and sealants. Can be easily blended with other
polyols and additives giving almost unlimited options in performance and
processing in typical sealant formulations.
Polyol. Used in adhesives and sealants. Possesses high molecular weight and high primary hydroxyl contributing to high reactivity with both aromatic and aliphatic isocyanates.
Polyol. Used in adhesives and sealants. Offers benefits such as good
compatibility with isocyanates, along with improved flow. Possesses inherently enhanced reactivity allowing for significant...
Polyol. Used in adhesives and sealants. Provides autocatalytic activity, reducing catalyst requirements and improving flow, compressive strength, and Kfactor when blended with other rigid polyols.
Polyol. Used in adhesives and sealants. Offers, through balanced design of the amount of primary hydroxyl groups, a favourable compromise between initial reactivity and final curing.
Polyol. Used in production of two component compact or foamed systems and one component prepolymer based products for adhesives and sealants with a variety of end uses such as elastomers, adhesives...
Polyurethane >> PU - Prepolymers >> Isocyanates >> TDI based
Prepolymer based on TDI featuring low free TDI content. Used in adhesives and sealants. Offers benefits such as controlled distribution of molecular weight for improved polymer properties and reduced...