Polyurethane foam containing internal mold-release agent

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

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252182, 521 51, 521155, 264300, C08G 1814, C08G 1808, C09K 300

Patent

active

041306988

ABSTRACT:
A mold-release agent is provided which consists essentially of 99.9% to 80% by weight of an aromatic polyisocyanate containing at least two isocyanate groups and 0.1% to 20% by weight of a fatty acid ester, e.g., glycerol trioleate, olive oil, peanut oil, etc. A process of using the material by incorporating it in polyurethane foams is disclosed.

REFERENCES:
patent: 2358475 (1944-09-01), Pratt et al.
patent: 3165483 (1965-01-01), Gemeinhardt et al.
patent: 3499852 (1970-03-01), Schroeder et al.
patent: 3925527 (1975-12-01), Kleimann et al.
patent: 4024088 (1977-05-01), Godlewski
patent: 4058492 (1977-11-01), VON Bonin et al.
Saunders et al.-Polyurethanes, Part II, Interscience, N.Y. (1964), pp. 99-106.
U.S. Testing Co.-Tables & Data; pp. 28-29, Composition & Constants of Fats & Oils, published about 1954.

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