Method and apparatus for the preparation of foamed structures

Details Method and apparatus for the preparation of foamed structures Method and apparatus for the preparation of foamed structures

1980-04-14

1981-11-03

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264216, 264DIG84, 425 89, 425224, 425817C, B29D 2704

Patent

active

042985579

ABSTRACT:
In the preparation of polyurethane foam by the provision of foamable urethane composition to a trough and subsequent overflow of the trough to a conveyor belt for final foaming and curing of the urethane composition, improved product is obtained by maintaining temperature uniformity laterally across the trough.

REFERENCES:
patent: 3786122 (1974-01-01), Berg
patent: 4074960 (1978-02-01), Dockray et al.
patent: 4165211 (1979-08-01), Eberling et al.

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