Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1984-06-20
1985-07-16
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
252182, 252357, 521167, C08G 1814
Patent
active
045297444
ABSTRACT:
Compatibility agents and polyol blend compositions are provided containing nonionic block ethoxylate propoxylate compounds, amine and amide diol compounds, and aromatic ester polyols, especially phthalate polyester polyols, which blends are miscible with fluorocarbon blowing agents. These blends are suitable for reaction with polyfunctional organic isocyanates in the presence of trimerization catalyst to make cellular polyisocyanurates.
REFERENCES:
patent: 3078315 (1963-02-01), Steele et al.
patent: 3362979 (1968-01-01), Bentley
patent: 3745133 (1973-07-01), Comunale et al.
patent: 4246364 (1981-01-01), Koehler et al.
patent: 4313847 (1982-02-01), Chasin et al.
Hughes, J. M. & Clinton, J. L. "Development Of Lower Cost Polyurethane Modified Polyisocyanate And Polyurethane Rigid Foams" paper given at (SPI 25 Annual Urethane Surtech Conference, 10/29/79).
Stepan Company
Welsh Maurice J.
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