SpecialChem4Adhesives.com R&D Highlights in Adhesives and Sealants Formulation

The Connection Properties of Rubber Asphalt Waterproofing Adhesive Layer in Bridge Deck Pavement

Thu, 02 Feb 2012 00:00:00 +0100

The use of rubber asphalt pavement as a bridge deck waterproofing adhesive layer material, the use of shear test and pull-out test analysis of the adhesive layer of rubber bitumen adhesive properties is reviewed. The best rubber asphalt spraying... (R&D Highlight)

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A Moisture Reactive Hotmelt Urethane Polymer Composition

Thu, 02 Feb 2012 00:00:00 +0100

A moisture-reactive hot-melt adhesive composition is provided. Particularly, a composition that includes a polyisocyanate and an anhydride-functional polymer having at least two hydroxyl functions. Also provided are a method for forming the adhesive... (R&D Highlight)

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Nanocomposites of Polyaniline as Conductive Adhesives

Thu, 26 Jan 2012 00:00:00 +0100

The use of electrically conductive adhesives as an alternative to traditional tin/lead soldering is discussed. In this study, polyaniline PANI as powder and as nanofibres was introduced as filler into epoxy resin/anhydride matrix to produce isotropic... (R&D Highlight)

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Methyl Methacrylate Adhesives for Architectural PVC

Thu, 26 Jan 2012 00:00:00 +0100

The use of cellular poly vinyl chloride PVC in building applications as a replacement for wood is reviewed and the drawbacks associated with the use of solvent-based adhesives for the fabrication and installation of cellular PVC, such as the... (R&D Highlight)

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Polyesters for Sustainable Adhesive Technologies

Wed, 25 Jan 2012 00:00:00 +0100

The synthesis of a series of biodegradable sulphonated segmented copolyesters as pressure-sensitive adhesives via melt transesterification of the polyester derived from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and dimethyl cyclohexane dicarboxylate... (R&D Highlight)

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Nanoparticle-modified Polyisocyanates

Wed, 25 Jan 2012 00:00:00 +0100

The present invention relates to innovative, nanoparticle-modified polyisocyanates, a process for their preparation and to their use in coating compositions and adhesives. The process comprises the steps of 1) reacting A) polyisocyanates with B)... (R&D Highlight)

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Primer Composition and Adhesive Sheet

Thu, 19 Jan 2012 00:00:00 +0100

The disclosed primer composition contains particles and an acrylic polymer obtained by polymerizing monomer components containing, as the primary component, a meth acrylic acid alkyl ester that has a C1-30 alkyl group. (R&D Highlight)

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Multistage Preparation of Aqueous Polymer Dispersions for Producing Composite Films

Thu, 19 Jan 2012 00:00:00 +0100

Described is a process for preparing an aqueous polymer dispersion from ethylenically unsaturated, free-radically polymerizable monomers. In a first stage, a first polymer is prepared by free-radical emulsion polymerization. In a second stage, an... (R&D Highlight)

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Study on Nano-particle Modified Epoxy Resin Adhesive

Thu, 12 Jan 2012 00:00:00 +0100

The nano-particle modified epoxy resin adhesive was prepared by adding different types of nanoparticles to the epoxy resin adhesives. The influence of the kinds and amount of nanoparticles on the mechanical properties of epoxy resin adhesive was... (R&D Highlight)

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Research Progress of Mini-emulsion in the Wood Industry

Thu, 12 Jan 2012 00:00:00 +0100

This paper reviews the mini emulsion in the timber industry and development. Introduction of the small foreign Emulsion Synthesis and Application of the latest developments. Mini emulsion adhesive is a rapid development over the past decade and has... (R&D Highlight)

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Reactive Epoxies with Functional Zeolite Fillers: IR Spectroscopy and PALS Studies

Wed, 11 Jan 2012 00:00:00 +0100

Epoxydicyandiamide (Dicy) formulations frequently contain a free accelerator for reducing the curing temperature and the time for network formation, which reduces the shelf life of these adhesives. This study compared the reaction kinetics during... (R&D Highlight)

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Novel Biodegradable Adhesive Compositions

Thu, 05 Jan 2012 00:00:00 +0100

The present invention provides a polymerizable adhesive composition comprising: i at least one cyanoacrylate monomer; and ii at least one polymerizable compound containing a one or more polymerizable carbon-carbon double bonds and b one or more... (R&D Highlight)

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Effect of Bondline Thickness on Mixed-mode Fracture of Adhesively Bonded Joints

Thu, 05 Jan 2012 00:00:00 +0100

The effect of bondline thickness on the critical strain energy release rate CSERR was investigated using aluminium adherends and an epoxy adhesive Complete mixed Mode I/II fracture envelopes for adhesive thicknesses ranging from 0.203 to 1.52mm were... (R&D Highlight)

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Bio-Based Roofing Adhesive Compositions

Thu, 05 Jan 2012 00:00:00 +0100

In many roofing applications, for example in large, flat commercial roof decks, the roofing substrate is a concrete, light weight concrete, wood, gypsum, wood fiber or steel roof deck. The roofing membrane is used to seal and protect the roof deck... (R&D Highlight)

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Bond Behavior and Debonding Failures in CFRP-strengthened Steel Members

Thu, 29 Dec 2011 00:00:00 +0100

Strengthening of steel structures with adhesively bonded carbon fibre reinforced polymer (CFRP) plates (or laminates) has attracted much recent research attention. Debonding of the CFRP plate from the steel substrate is one of the main failure modes... (R&D Highlight)

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Bio-sourced Adhesive

Thu, 29 Dec 2011 00:00:00 +0100

A one component adhesive composition is provided, which can be formulated from substantially or totally bio-based, renewable raw materials. Such adhesives can be formulated to have high strength and/or low or substantially no VOC emissions. This can... (R&D Highlight)

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Water-dispersed PSA Composition and Method of Production

Wed, 28 Dec 2011 00:00:00 +0100

A water-dispersed pressure-sensitive adhesive (PSA) composition having a low perishability is provided. This PSA composition includes as a base polymer an acrylic polymer and, when held in a 30⁰ C atmosphere for 5 days, the number of viable... (R&D Highlight)

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Adhesive and Laminates Made by Using the Same

Wed, 28 Dec 2011 00:00:00 +0100

It is known that graft modified ethylene/α-olefin random copolymer compositions grafted with an unsaturated carboxylic acid or its derivative are used as a bonding composition for polar resins having difficulty in bonding with polyesters such as... (R&D Highlight)

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UV-curable Waterborne PUR-acrylate: Preparation, Characterization and Properties

Thu, 22 Dec 2011 00:00:00 +0100

The waterborne polyurethane-acrylate (PUA) oligomer was firstly prepared based on isophorone diisocyanate (IPDI), polyether polyol (NJ-210), dimethylol propionic acid (DMPA) and hydroxyethyl methyl acrylate (HEMA) via in situ and anionic... (R&D Highlight)

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Biodegradable Hot-melt Adhesive Composition

Thu, 22 Dec 2011 00:00:00 +0100

The invention relates to biodegradable hot-melt adhesive compositions, preferably without residual tackiness at room temperature and having a biodegradability, as measured by the released carbon-dioxide analysis method pursuant to Standard EN ISO... (R&D Highlight)

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