Mold release agents employing polyvinyl alcohol

Details Mold release agents employing polyvinyl alcohol Mold release agents employing polyvinyl alcohol

2007-07-26

2010-12-14

Egwim, Kelechi C (Department: 1796)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S557000, C524S588000, C524S847000, C524S858000, C156S500000, C264S402000

Reexamination Certificate

active

07851535

ABSTRACT:
The present invention relates to a composition designed to be a release agent applied to the surface of a molding apparatus and method of using the composition in molding operations. The composition includes a siloxane composition, hydrophilic matting particles, a cross linking agent, a binding agent having hydrophobic and hydrophilic characteristics. The composition may optionally include a carrier. The composition is designed to be applied to the surface of a mold, allowing for repeated use without the need for re-applying the composition between uses.

REFERENCES:
patent: 3872038 (1975-03-01), Adams et al.
patent: 5219925 (1993-06-01), Stephens
patent: 5288795 (1994-02-01), Fujiki et al.
patent: 5298556 (1994-03-01), Stephens
patent: 5852107 (1998-12-01), Gillis et al.
patent: 6342324 (2002-01-01), Li et al.
patent: 12-191786 (2000-07-01), None
patent: 10-2000-0059814 (2000-10-01), None
patent: WO 2004/106026 (2004-12-01), None

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