Process for continuous production of thin polyurethane foam laye

Details Process for continuous production of thin polyurethane foam laye Process for continuous production of thin polyurethane foam laye

1974-03-19

1976-02-17

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 469, 264 54, 264216, 264309, 425110, 425817C, 427 32, 427 42X, 428310, 428320, B29D 2704

Patent

active

039392350

ABSTRACT:
The invention pertains to a process for the continuous production of thin polyurethane foam layers, in which a band-like supporting layer is moved longitudinally and locally guided so as to take a nearly cylindrical shape, the axis of which is horizontal and perpendicular to the general direction of the band motion, and a reacting mixture is projected on the supporting layer by means of a vertical, rotating projection disk, reciprocating along the axis of the said cylindrical shape.

REFERENCES:
patent: 1946831 (1934-02-01), Bracewell
patent: 1970227 (1934-08-01), Frisbie
patent: 2753276 (1956-07-01), Brochhagen et al.
patent: 2754227 (1956-07-01), Ransburg
patent: 2779689 (1957-01-01), Reis
patent: 3172925 (1965-03-01), Preotle
patent: 3297474 (1967-01-01), Shields
patent: 3455728 (1969-07-01), Kiwiet
patent: 3726951 (1973-04-01), Smith
patent: 3797981 (1974-03-01), Van Dijk

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