Process for the preparation of polyurethane elastomers in which

Details Process for the preparation of polyurethane elastomers in which Process for the preparation of polyurethane elastomers in which

1979-09-13

1981-02-10

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...

528 49, 528 69, C08G 1808

Patent

active

042502926

ABSTRACT:
The present invention relates to an improved continuous process for the preparation of polyurethane elastomers which are distinguished from the products produced by known processes by increased elasticity, reduced shrinkage, higher rigidity (limit bending stress), improved cold notched bar impact resistance and good thermal stability.

REFERENCES:
patent: 3312666 (1967-04-01), Knipp et al.
patent: 3642964 (1972-02-01), Rausch et al.
patent: 3963679 (1976-06-01), Ulrich et al.
Saunders et al., Polyurethanes II, Interscience, NY, 1964, p. 201.

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