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US 2002/0161154 A1Published application
Urethane-acrylic coatings for optical fiber
AssigneeDsm IP Assets B.V.
InventorsWendell W. Cattron, Xiaosong Wu
Life of this patent
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Abstract
The present invention relates to a method of improving the tensile, elongation, and/or modulus (overall toughness) of a radiation curable composition by reacting in a free multi-functional isocyanate prior to curing.
Claims24
A radiation-curable coating comprising:
- (i) a component represented by the following formula (a);
- A-X1-A (a)
- wherein
- A represents a (meth)acrylate group;
- and
- X1 represents an aliphatic or aromatic group;
- and
- (ii) a urethane (meth)acrylate component comprising a (meth)acrylate group, X1, and a residue of a multifunctional isocyanate.
5 more elements
A method of improving the tensile strength, modulus, and/or elongation of a radiation-curable composition comprising:
- adding a multi-functional isocyanate to the composition prior to curing.
Dependencies are inferred from the claim text.