Process of making a non-oriented, surface-roughened film or shee

Details Process of making a non-oriented, surface-roughened film or shee Process of making a non-oriented, surface-roughened film or shee

1988-06-21

1989-11-14

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

By casting liquids on a solid supporting or shaping surface

156219, 264257, 264258, 264284, 264293, B29C 4320, B29C 5904, B32B 3122

Patent

active

048805890

ABSTRACT:
A process for production of an essentially non-oriented surface-roughened film or sheet comprising a crystalline homopolymer or crystalline copolymer of 4-methyl-1-pentene having a surface roughness of 0.5 to 10 micrometers, said process including the following steps (1) preparing a molten composition comprising a homopolymer or copolymer of 4-methyl-1-pentene, (2) extruding the molten composition to form a film or sheet, and (3) placing the film or sheet in contact with a roller having a roughened surface or passing the film or sheet through a pair of rollers, at least one of which has a roughened surface; and the use of the above-mentioned surface roughened film or sheet for the manufacture of single-sided metal clad laminates.

REFERENCES:
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patent: 4357448 (1982-09-01), Tsubaki et al.
patent: 4486377 (1984-12-01), Lucchesi et al.
patent: 4546150 (1985-10-01), Shigemoto

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