Silicone polyurethane copolymers containing oxygen sensitive pho

Details Silicone polyurethane copolymers containing oxygen sensitive pho Silicone polyurethane copolymers containing oxygen sensitive pho

1991-10-10

1992-10-13

Bleutge, John C.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524588, 524589, 528 28, 528 38, C08K 534

Patent

active

051551497

ABSTRACT:
The present invention is directed to silicone polyurethane copolymers containing phosphorescent dye compounds wherein the copolymers are represented by the formula: ##STR1## wherein n is an integer ranging from 1 to about 30, and y, z, and w are integers ranging from 0 to about 40, wherein one of y, z, and w is at least one; and A is a diamide, B is a silicone block copolymer, D is a chain extender, and E is a phosphorescent porphyrin-type compound.

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