Radiation grafting of organopolysiloxanes

Details Radiation grafting of organopolysiloxanes Radiation grafting of organopolysiloxanes

C - Chemistry, Metallurgy

08

J

204/91.38

C08J 7/04 (2006.01) B05D 3/06 (2006.01) C08J 7/18 (2006.01)

Patent

CA 1298566

Abstract This invention provides for the radiation grafting of cer- tain organopolysiloxanes to polymeric supports. The organopoly- siloxane material is a partially crosslinked mixture which contains from about 10% to about 90% by weight of uncrosslinked organopolysiloxane oil and has a cone penetration of about 100 to about 350 (10-1mm) and an ultimate elongation of at least about 100%. The organopolysiloxane fluid may be placed on the polymeric support and crosslinked to produce an organopolysiloxane material having the above properties and bonded to the polymeric support. The organopolysiloxane material also can be crosslinked to attain the above properties by conventional means then placed in con- tact with the polymeric support and irradiated to crosslink the material to the polymeric support without substantially changing the properties of the organopolysiloxane material.

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