Polyurethane foams, compositions to prepare same and process to

Details Polyurethane foams, compositions to prepare same and process to Polyurethane foams, compositions to prepare same and process to

1989-12-12

1991-05-28

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521114, 521129, 521156, C08G 1814

Patent

active

050196022

ABSTRACT:
Polyurethane foams, varying in nature from soft to hard, tough skin and a process for their preparation comprising reacting approximately equal volumes of substantially liquid mixtures from a two part dispensing system, Part A comprising a substantially liquid, stable mixture of an isocyanate and an epoxide and Part B comprising a substantially liquid mixture of a polyether polyol, a catalyst and an accelerator.

REFERENCES:
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patent: 3519708 (1970-07-01), McMichael
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patent: 3781229 (1973-12-01), Smith et al.
patent: 3883619 (1975-05-01), Jenkner
patent: 4258137 (1981-03-01), Cogliano
patent: 4518720 (1985-05-01), Cuscurida et al.
patent: 4568705 (1986-02-01), Grace et al.
patent: 4647624 (1987-03-01), Stamberger
patent: 4789690 (1988-12-01), Milovanovic-Lerik et al.

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