Polymer backed silicone rubber molds and means for forming bonds

Details Polymer backed silicone rubber molds and means for forming bonds Polymer backed silicone rubber molds and means for forming bonds

1976-07-19

1978-01-24

Lesmes, George F.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156246, 156329, 427302, 428420, 428423, 428447, B32B 3112

Patent

active

040702243

ABSTRACT:
A mold has a silicone rubber body defining a molding cavity with a polymeric backer forming a support for the body integrally joined to the body by an adhesive bond. A cured silicone rubber or silicone resin is bonded to anyone of a variety of polymeric substances by applying an activating primer such as trimethylbenzyl ammonium hydroxide and subsequently or simultaneously applying a bridging agent which bonds to the activated silicone surface and also provides bonding sites for later attachment to polymers containing isocyanates, epoxides and/or other reactive groups.

REFERENCES:
patent: 3321350 (1967-05-01), Fekete
patent: 3539144 (1970-11-01), Krug
patent: 3794556 (1974-02-01), Young

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