UV Curable PSA Modifications D

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

A

Urethane acrylate oligomer (CN973 from Sartomer)

xxx

A

C9 Tackifier (S-135 from Sartomer)

xxx

A

2- Ethoxyethoxyethylacrylate (SR256 from Sartomer)

xxx

A

Ethoxylated nonyl phenyl acrylate (SR504 from Sartomer)

xxx

A

MEHQ from Aldrich Chemical

xxxx

A

Irganox® 1076 from CIBA

xxxx

B

PSA base resin from above

xx

B

2- Ethoxyethoxyethylacrylate (SR256 from Sartomer)

xx

B

Ethoxylated nonyl phenyl acrylate (SR504 from Sartomer)

xx

B

Photoinitiator (KJT046 from Sartomer)

x

Typical Properties

Properties

Viscosity at 25°C, cps

xxxx

180° peel adhesion, lb / inch (dependent on energy density and time after bonding)

xxx

Tack, gm

xxxxxx

Saft, °C at energy density of 400 mJ/cm2

xxx

Processing

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Resulting Properties

The above table shows a starting formulation for various modifications of UV cured pressure sensitive adhesives. Upon curing, these adhesives offer a film that provides excellent adhesive strength to a number of different substrates.

Tips and Tricks

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UV Curable PSA Modifications (D)

Applicable Base Polymer Properties

Typical Formulation Ingredients

Typical Properties

Processing

Resulting Properties

Tips and Tricks