Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1991-07-02
1992-02-04
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521 94, 521 97, 521130, 521138, 521178, 521181, 521182, C08J 908
Patent
active
050860836
ABSTRACT:
A method of using blowing agent compositions to produce foamed plastics such as polyurethanes, polyesters and the like, wherein a major auxiliary source of blowing agent for the foam is the decomposition of dialkyl dicarbonates. The dialkyl dicarbonates can be decomposed over temperatures ranging from about 10.degree. C. to about 45.degree. C. when used in combination with particular tertiary amine decomposition catalysts.
REFERENCES:
patent: 2906717 (1959-09-01), Sekmakas
patent: 3271331 (1964-09-01), Ender
patent: 3836491 (1974-09-01), Taft et al.
patent: 3849349 (1974-11-01), Krisch
patent: 4070310 (1978-01-01), Schneider et al.
patent: 4297442 (1981-10-01), Blahak
patent: 4983320 (1991-01-01), Franklin et al.
patent: 5030664 (1991-07-01), Franklin et al.
Plastic Foams, Edgar E. Hardy, vol. 1, Part 2, Chapter 14, Marcel Dekker, Inc. NY 1973
Plastic Foams, C. J. Benning, vol. 1, Chapter 5 (Wiley Interscience) 1969.
Plastic Foams, K. C. Frisch, J. H. Saunders, vol. 1, Part 2, Chap. 11, Marcel Dekker, Inc. NY 1973.
Handbook of Foamed Plastics, R. J. Bender, p. 306-313.
Encyclopedia of Chemical Technology, Kirk-Othmer, 3rd Ed., vol. 17, p. 411.
J. Coatings Tech., C. Thankachan, vol. 61 (769) 39-45, (1989) "Chemistry of Curing Reactions; Room-Temperature Cure Coatings Based on Epoxies and Urethanes".
J. Polym. Sci., Polym. Chem. Ed., Dandge & Kops, vol. 18, pp. 355-357 (1980) "Reactivity of N,N'-Bismethylolpyromellitimide with Isocyanates".
J. Cell. Plastics, Nicholas & Gmitter, vol. 1, pp. 85-90 (1965), "Heat Resistant Rigid Foams by Trimerization of Isocyanate Terminated Prepolymers".
Fesman Gerald
Franklin Ralph
Jacobs Barry
Parr William J.
Akzo NV
Foelak Morton
Morris Louis A.
Poole James K.
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