Process for producing a deep-drawn article from a partially-crys

Details Process for producing a deep-drawn article from a partially-crys Process for producing a deep-drawn article from a partially-crys

1986-08-04

1988-04-26

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

2642102, 2642103, 264235, 264236, 264237, 264284, 264292, 264293, 264294, 264322, 264544, 264DIG65, 425174, 522158, B29C 3508, B29C 5100

Patent

active

047403357

ABSTRACT:
A process for producing a surface-embossed, deep-drawn article suitable for an interior finish or lining of a motor vehicle, for example, starts with a partially-crystalline polymeric material, i.e., one having crystallites, in film form. The film-form material is heated to a temperature below the melting point of its crystallites an surface embossed. The embossed material is then cooled and crosslinked. The crosslinking is preferably done by irradiating the cooled material with a high-energy beam such as an accelerated electron beam, for example. The cooled and crosslinked material is then reheated, this time to a temperature above the melting point of its crystallites, and deep drawn into the shape of the article.

REFERENCES:
patent: 3270104 (1966-08-01), Dreyfus et al.
patent: 3333032 (1967-07-01), Dickinson
patent: 3563973 (1971-02-01), Arditti et al.
patent: 3872194 (1975-03-01), Lowry et al.
patent: 3932575 (1976-01-01), Andersson
patent: 4122137 (1978-10-01), Bohm et al.
patent: 4226687 (1980-10-01), Sasaki et al.
patent: 4419320 (1983-12-01), Perkins et al.
patent: 4489034 (1984-12-01), Davison

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