Process for preparing solid elastomeric polyurethanes having red

Details Process for preparing solid elastomeric polyurethanes having red Process for preparing solid elastomeric polyurethanes having red

1995-12-28

1998-02-17

Sergent, Rabon

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...

524710, 524723, 524778, 524736, 524738, 524741, 524742, 524765, 524770, 524773, 524775, 528 48, 528 49, 528 51, 528 52, 528 53, 528 59, 528 80, 528 83, 528 84, C08K 507, C08K 509, C08K 513, C08K 521

Patent

active

057192294

ABSTRACT:
This invention relates to solid elastomeric polyurethanes prepared by reacting, in an open mold at an isocyanate index of 80 to 120,
(a) an isocyanate prepolymer having an isocyanate content of 3 to 15% by weight and a number average molecular weight of 550 to 20,000 prepared by the reaction of

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patent: 3886102 (1975-05-01), Olstowski
patent: 4001165 (1977-01-01), Olstowski
patent: 4401804 (1983-08-01), Wooten et al.
patent: 4551498 (1985-11-01), Yeater et al.
patent: 4618667 (1986-10-01), Kay et al.
A. Awater, "PU cast elastomers" in Polyurethane Handbook, ed. G. Oertel (New York: Hanser Publisher, 1985-month unavailable) pp. 372-388.
J.H. Saunders and K.C. Frisch, "Urethane Elastomers" in Polyurethanes Chemistry and Technology (New York: Interscience Publishers, 1962-month unavailable), pp. 273-314.

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