Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1978-01-16
1980-04-08
Cockeram, H. S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
127 71, 521112, 521116, 521124, 521129, 521160, 521174, 521175, C08G 1814, C08G 1848, C08G 1876
Patent
active
041973720
ABSTRACT:
Semi-flexible, shock-absorbing polyurethane foams containing an amylaceous material, such as a cereal starch or flour, and having an open cell structure are prepared by co-reacting the amylaceous material and a polyether with an aromatic polyisocyanate having a functionality of about 2 to about 2.4. The foams are particularly useful in crash padding.
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German Laid Open Patent Application (English Translation) 24 48 216, Apr. 10, 1975.
Bennett et al., Jour. Cellular Plastics, Aug., 1967, pp. 1-5.
Cockeram H. S.
Krause Milling Company
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