Rim process utilizing isocyanates based upon 2,4'- and 4,4'-diph

Details Rim process utilizing isocyanates based upon 2,4'- and 4,4'-diph Rim process utilizing isocyanates based upon 2,4'- and 4,4'-diph

1995-02-07

1996-10-08

Seidleck, James J.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

264 455, 264 50, 264 51, 2643281, 2643288, 521159, 521160, 521170, 521173, 521176, 528 61, 528 64, 528 65, 528 66, 528 67, 528 76, 528 77, 528 80, 528 85, C08G 1810, C08G 1832, C08G 1876, C08J 904

Patent

active

055632327

ABSTRACT:
A RIM process utilizing a reaction product of an MDI containing from 6 to 50% by weight of the 2,4'-isomer and a polypropylene glycol as the isocyanate reactant results in a molded product having excellent low temperature impact properties.

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