Silicone containing reaction injection molded polyurethanes

Details Silicone containing reaction injection molded polyurethanes Silicone containing reaction injection molded polyurethanes

1977-02-07

1978-02-28

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 465R, C08G 1830

Patent

active

040766950

ABSTRACT:
A reaction injection molding (RIM) process for making polyurethanes is disclosed where in addition to the conventional ingredients such as polyols, isocyanates, and catalysts there is included a carboxy functional siloxane. The incorporation of the carboxy functional siloxane aids in the release of the molded part and shortening the molding cycle time.

REFERENCES:
patent: 3388144 (1968-06-01), Musolf et al.
patent: 3856756 (1974-12-01), Wagner et al.
patent: 3933756 (1976-01-01), Wagner
patent: 3941733 (1976-03-01), Chang
patent: 3954824 (1976-05-01), Prokai et al.
patent: 3979344 (1976-09-01), Bryant et al.

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