Urethane (meth)acrylate oligomer, process for its production...

Details Urethane (meth)acrylate oligomer, process for its production... Urethane (meth)acrylate oligomer, process for its production...

2006-01-10

2006-01-10

Gorr, Rachel (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

C526S301000, C428S378000, C385S145000

Reexamination Certificate

active

06984672

ABSTRACT:
A urethane (meth)acrylate oligomer which has a low viscosity and gives a flexible cured product having a low surface tackiness, is provided. It is obtainable by reacting a polyol component comprising a polyoxyalkylene polyol which has from 2 to 4 hydroxyl groups, a hydroxyl value VOH(mgKOH/g) of from 5 to 115 and a total degree of unsaturation VUS(meq/g) satisfying VUS≦(0.45/VOH)+0.02, with a polyisocyanate compound and a hydroxylated (meth)acrylate compound.

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