Apparatus for producing polyurethane foam

Details Apparatus for producing polyurethane foam Apparatus for producing polyurethane foam

1987-07-07

1991-01-29

Simmons, David

Plastic article or earthenware shaping or treating: apparatus

Including ventilating type hood or chamber encasing a...

425150, 425171, 425817R, 264101, B29C 3942, B29C 3944

Patent

active

049882716

ABSTRACT:
A method of producing polyurethane foam slab by allowing a urethane foam stock solution in a tank to expand in a reduced pressure. The flatness of the top of the polyurethane foam is secured by providing a lifting jig or a plate within the tank, or by rotating the tank. An apparatus for carrying out the method is also provided.

REFERENCES:
patent: 3291873 (1986-12-01), Eakin
patent: 3366718 (1968-01-01), Komada
patent: 3878279 (1975-04-01), Sorrells et al.
patent: 3970732 (1976-07-01), Slaats et al.
patent: 3996322 (1976-12-01), Snelling et al.
patent: 4014967 (1977-03-01), Hattenberger et al.
patent: 4088722 (1978-05-01), Marjoram
patent: 4285893 (1981-08-01), Contastin
patent: 4416841 (1983-11-01), Corea et al.
patent: 4601864 (1986-07-01), Vreenegoor
patent: 4666393 (1987-05-01), Kumasaka et al.

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