Blends containing photoactive additive
AssigneeSabic Global Technologies B.V.
InventorsJean-Francois Morizur, Paul Dean Sybert, Peter Johnson, Thomas L. Evans, James Franklin Hoover, Amanda Marie Flores
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Abstract
Polymeric blends having improved flame retardance properties and good ductility at low temperatures are disclosed. The blend is formed from (A) a photoactive additive containing a photoactive group derived from a monofunctional benzophenone; and (B) a polymer resin which is different from the photoactive additive. The additive can be a compound, oligomer, or polymer. When exposed to ultraviolet light, crosslinking will occur between the photoactive additive and the polymer resin, enhancing the chemical resistance and flame retardance while maintaining ductility.
Claims35
A polymeric blend, comprising:
- a photoactive additive containing a photoactive group derived from a monofunctional benzophenone;
- and
- a polymer resin which is different from the photoactive additive;
- wherein the photoactive additive is a cross-linkable polycarbonate resin having the structure of Formula (I):
- wherein R1 and R2 are independently halogen, C1-6 alkyl, C3-8 cycloalkyl, aryl, or arylalkyl;
- x is an integer from 0 to 4;
- y is an integer from 0 to 5;
- n′ is an integer from 29 to 65;
- and the repeating unit is derived from:
- (i) a monomer having the structure:
- HO-A1-Y1-A2-OH
- wherein each of A1 and A2 , comprise a monocyclic divalent arylene group, and Y1 is a bridging group having one or more atoms;
- or
- (ii) a monomer having the structure:
- each Rk is independently halogen, a C1-10 hydrocarbon group, or a halogen substituted C1-10 hydrocarbon group;
- and n is 0 to 4.
Dependencies are inferred from the claim text.