PRODUCTION OF SURFACE ROUGHENED FILM AND SHEET MADE OF POLY 4-METHYL-1-PENTENE FOR PRODUCING MULTILAYER PRINTED WIRING BOARD

Title:

PRODUCTION OF SURFACE ROUGHENED FILM AND SHEET MADE OF POLY 4-METHYL-1-PENTENE FOR PRODUCING MULTILAYER PRINTED WIRING BOARD

Document Type and Number:

Japanese Patent JPH0623840

Kind Code:

A

Abstract:

PURPOSE: To produce the title surface roughened film and sheet suitable for improving the adhesiveness of a resin substrate and a prepreg without damaging releasability.

CONSTITUTION: Molten poly 4-methyl-1-pentene is extruded from the die 1 of an extruder to form a film or sheet and the film or sheet is heated to the temp. range from the softening point thereof to below the m.p. thereof to be supplied to the nip of a pair of rolls 2a, 2b at least one of which has average surface roughness of 0.5-10μm and pressed by the rolls to be taken up.

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Inventors:

SHIGEMOTO HIROMI (JP)
ABE SHUNJI (JP)
YAMAMOTO AKIO (JP)

Application Number:

JP1660593A

Publication Date:

February 01, 1994

Filing Date:

February 03, 1993

Export Citation:

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Assignee:

MITSUI PETROCHEMICAL IND

International Classes:

B29C33/68; B29C43/02; B29C43/24; B29C43/46; B29C48/07; B29C48/08; B29C48/305; B29C59/00; B29C59/02; B29C59/04; B29C70/08; B29D7/00; B29D7/01; B32B37/00; B32B38/00; C08J5/18; H05K1/03; H05K3/38; B29C48/00; B29K23/00; B29L7/00; B32B37/15; H05K3/02; (IPC1-7): B29C59/04; B29C47/14; H05K1/03

Domestic Patent References:

JPS432692Y1	1968-02-03
JPH03187701A	1991-08-15
JPS6110115A	1986-01-17

Attorney, Agent or Firm:

Tsutomu Toyama (1 outside)

Next Patent: METHOD AND APPARATUS FOR PRODUCING TAPERED PARTS