System and process for continuous manufacture of cellular produc

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Including surface treatment of porous body

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264 51, 264157, 264321, 264338, B29C 6722

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active

050358464

ABSTRACT:
The process includes molding a plurality of recesses on a layer of foam material which is laid on a laying surface and moved forward. These recesses include a base open on the laying surface and are subsequently cross-linked by introducing steam under pressure through the bases of the recesses into cavities of the recesses formed during the molding step. The plant includes a conveyor element in which a plurality of plates disposed side-by-side are provided with protuberances corresponding to the recesses to be formed in the foam layer. The protuberances are open at their bases to enable introduction of steam into an inner space within each of the protuberances.

REFERENCES:
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patent: 3335207 (1967-08-01), Richie
patent: 4082824 (1978-04-01), Del Carpio
patent: 4088722 (1978-05-01), Marjoram
patent: 4172917 (1979-10-01), Angelle et al.
patent: 4442167 (1984-04-01), Iwasa et al.
patent: 4473667 (1984-09-01), Sands
patent: 4605683 (1986-08-01), Broslaw
patent: 4870112 (1989-09-01), Knipp et al.

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