Traditionally the adhesive industry has used SBCs with the polymer structures commercially available in the market: linear or radial architecture. But various benefits can be missed if limiting to these structures.
The Solution...
In order to offer additional alternatives adhesives formulators to reach a wider range of adhesive / viscosity properties balance, Dynasol has recently developed a novel structure with a multiarm architecture.
This new multiarm structure polymer is specifically designed for pressure sensitive adhesive (PSA) applications to solve specific unmet needs and to help in new adhesive projects:
Specialty tapes
Disposables assembling
Elastic filament attaching (diapers)
Study case # 1
One of the main market requirements for HMPSA formulations is to get SBCs with superior adhesive properties while developing lower viscosity than HMPSA formulated using standard low molecular weight, SBS copolymers containing 20% of di-block and 30% of Styrene.
Example Formulation:
Ingredient
PHR
Polymer
100
Tackifier
178
Plasticizer
50
A/O
2
Figure 1: Solprene® 9618 enables to enhance the performances of an adhesive
Features improvements
Formulators benefits
Improved adhesion/cohesion
Superior holding power
Reduced viscosity (>50%)
Similar temperature resistance
Improved productivity, thanks to the low adhesive viscosity
Energy savings by working at lower temperatures
Competitively products thanks to superior adhesive /cohesive performance
