Energy savings plus mechanical reinforcement and rheology control

UV Cured Polyisoprene Pressure Sensitive Adhesive

Adhesives Formulation

Applicable Type

UV/EB Cure Adhesives

Applicable Base Polymer

Polyisoprene Rubbers (IR)

Applicable Industrial Sectors

Labels / Signs / Decals , Tapes

Applicable Base Polymer Properties

Polyisoprene is a low molecular weight, liquid polymer of synthetic rubber. These are translucent, honey-colored liquids and bulk and virtually clear in film form. It offers the benefits of natural rubber without the dark color and the impurities in natural rubber. The polyisoprene products are easily crosslinked with free-radical chemistry.

Typical Formulation Ingredients

Ingredient

Parts by weight

Polyisoprene (Isolene 400, Royal Elastomers)

xxxx

Tackifier (Ecorez 5300, Exxon Mobile)

xxxx

Difunctional monomer (SR-200, Sartomer)

xxx

Trimethylolpropane triacrylate (TMPTA)

xxx

Photoinitiator

xxx

(Source: Royal Elastomers)

Typical Properties

Properties

Viscosity, cps:

- At 60°C

xxxxxx

- At 120°C

xxxxx

Rolling ball tack per PSTC-6, cm

xxx

180° peel adhesion per PSTC-1, N/cm

xxxx

Shear resistance per PSTC-7, 500 gms, hrs

xxx

Processing

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Resulting Properties

Feasibility studies indicate that transparent pressure sensitive adhesives can be developed with a balance of tack and holding power via radiation curing using judicious compounding of polyisoprene oligomers and hydrogenated polycyclic tackifiers with an adroit selection of multifunctional acrylates.

The ecological advantages of attaining not just low volatile emissions, but practically no volatile emissions, make radiation curing an excellent process technique for our current environment. Energy savings, enhanced product quality, new product capabilities and the ability to cure materials on thermally sensitive substrates are proven pluses for irradiation processing. Ultra-violet irradiators and low voltage electron beam accelerators are available from numerous reputable suppliers.

UV Cured Polyisoprene Pressure Sensitive Adhesive

Applicable Base Polymer Properties

Typical Formulation Ingredients

Typical Properties

Processing

Resulting Properties

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