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...
Patent
1977-05-05
1979-07-31
Welsh, Maurice 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...
C08G 1876
Patent
active
041630955
ABSTRACT:
The instant invention is directed to a process for the solvent-free production of solid polyurethane moldings wherein the polyisocyanate used is a polyisocyanate mixture containing from 10 to 80% by weight of 2,4'-diisocyanatodiphenylmethane.
REFERENCES:
patent: 2929800 (1960-03-01), Hill
patent: 3277173 (1966-10-01), Powers et al.
patent: 3344162 (1967-09-01), Rowton
patent: 3362979 (1968-01-01), Bentley
Ehrhard Fritz
Gebauer Herbert
Kubens Rolf
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Olson R. Brent
Welsh Maurice J.
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