Title:
MOLDED ARTICLE PRODUCTION METHOD AND RESIN FILM USED FOR SAID PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/044996
Kind Code:
A1
Abstract:
This molded article production method comprises: a preparation step for preparing a molded article; and a heating step for heating the molded article to age or anneal the molded article, while the molded article is being supported on a resin film. The resin film used herein has a thermal dimensional change rate of at most 10% in the longitudinal direction thereof over a temperature range between 23°C and 160°C, exhibits an optical transmissivity of at least 38% with respect to light at a wavelength of 500 nm, and has a haze value of at most 40%. This resin film is used for supporting a molded article when heating the molded article for aging or annealing the molded article. This resin film has a thermal dimensional change rate of at most 10% in the longitudinal direction thereof over a temperature range between 23°C and 160°C, exhibits an optical transmissivity of at least 38% with respect to light at a wavelength of 500 nm, and has a haze value of at most 40%.
Inventors:
WATANABE MASAHIKO (JP)
Application Number:
PCT/JP2019/031111
Publication Date:
March 05, 2020
Filing Date:
August 07, 2019
Export Citation:
Assignee:
SUMITOMO BAKELITE CO (JP)
International Classes:
B29C71/02; B29C31/00
Foreign References:
| JP2017137432A | 2017-08-10 | |||
| JPS61244706A | 1986-10-31 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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