Multiple release mold coating for high water, high...

Details Multiple release mold coating for high water, high... Multiple release mold coating for high water, high...

C - Chemistry, Metallurgy

08

L

400/4106

C08L 83/05 (2006.01) B29C 33/64 (2006.01) C08L 83/04 (2006.01) C08L 83/06 (2006.01)

Patent

CA 1296825

24 MULTIPLE RELEASE MOLD COATING FOR HIGH WATER, HIGH RESILIENCY POLYURETHANE FOAM ABSTRACT A method for molding high water, high resiliency (HR) polyurethane foam articles is disclosed wherein a silicone mold release composition is used to treat the surfaces of a mold. The composition imparts release characteristics to the mold which last through multiple molding cycles, allow recoating with said composition and allows the production of defect-free foam articles. The composition consists essentially of a high and a low molecular weight hydroxyl endblocked polydimethylsiloxane, a siloxane crosslinker having SiH functionality, a catalyst and an inert solvent.

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