Jackson Walker L.L.P.
Process for preparing a laminated composite of addition type silicone rubber and polyurethane by induce surface reconstruction
 Induced surface reconstruction of silicone rubber by blending silicone gel reactants of addition type with a modifier and curing with a mold having a high critical surface tension was used to improve the adhesion of chemically inert silicone rubber to polyurethane. The modifier has the following formula ##STR1## wherein m=25.about.50; R.sub.1, R.sub.2, R.sub.3, and R.sub.4 independently are alkyl; R' is R or OR, wherein R is a polymer backbone having a molecular weight of 1000.about.20000. The mold is formed with a material having a critical surface tension greater than that of a polymer having a repeating unit of said R. 
Chung-Shan Institute of Science & Technology
B B B B B B B B C C
B29K B32B B29K B29C B29C B29C B29K B32B C08J C08G
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Yuan-Chyi Ming-Fu Wen-Hsiung Yong Chien Yu-Der
Lin Tsai Ku Ling Lee