Method and apparatus for making a molded pulp product with a liq

Details Method and apparatus for making a molded pulp product with a liq Method and apparatus for making a molded pulp product with a liq

1974-04-19

1976-05-18

Dier, Philip

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156269, 156287, 156517, 156583, 156224, 428 64, 229 25R, 162103, 162266, B29C 1704, B32B 3108, B30B 1534, B32B 516

Patent

active

039575586

ABSTRACT:
A method and apparatus are disclosed for making a molded pulp product such as a plate or the like which has an upper liquid impervious layer integrally secured thereon. The pulp product is formed on a foraminous mold and, together with the mold, is heated to the softening temperature of a liquid impervious thermoplastic sheet material which is caused to be cut to size by engagement with a cutting edge on the mold whereafter the severed portion is drawn by suction and bonded to a selected surface area of the pulp product.

REFERENCES:
patent: 3205123 (1965-09-01), Hornbostel, Jr.
patent: 3318748 (1967-05-01), Hurst
patent: 3539422 (1970-11-01), Daniele
patent: 3616197 (1971-10-01), Amberg et al.
patent: 3657044 (1972-04-01), Singer
patent: 3697369 (1972-10-01), Amberg et al.
patent: 3825642 (1974-07-01), Kies

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