Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1978-11-13
1980-10-07
Cockeram, H. S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
252522R, 252522A, 239 53, 239 54, 239 60, 424 19, 424 78, 521121, 521122, 521125, 521160, 521905, C08G 1814, C08G 1808, A61L 901
Patent
active
042269440
ABSTRACT:
Fragrance-emitting articles comprising a polyurethane foam containing a particulate filler and a fragrance material, and a method of making such articles, are disclosed. The method includes the essential steps of pre-mixing particulate filler and fragrance and dispersing the pre-mix in a liquid polyol, before adding the other reaction mixture components, and provides a polyurethane foam having a controlled rate of release of the fragrance.
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Pauly Peter D.
Stone Herman
Cockeram H. S.
Scullin James P.
Tenneco Chemicals Inc.
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