Title:
RELEASE FILM AND METHOD FOR PRODUCING MOLDED PRODUCTS
Document Type and Number:
WIPO Patent Application WO/2022/085241
Kind Code:
A1
Abstract:
A release film (10) according to the present invention is provided with a release layer (1) on at least one side. A release layer (1) contains one or two or more types selected from polyester resins, poly-4-methyl-1-pentene resins, polyamide resins, and polypropylene resins, and has a dynamic coefficient of friction, measured under the following condition, of 0.01-0.7. (Condition) A first release film (10) is cut to a size of a width of 6.5 cm and a length of 17 cm and is adhered on a horizontal platform with the release layer (1) being the upper side; a second release film (10) is wound around a 63 cm-square, 202 g weight with the release layer (1) to the outside. The weight wound with the second release film is placed on the first release film (10); the frictional force is measured when the weight is displaced in the horizontal direction at a velocity of 150 mm/min in an atmosphere at room temperature 23 ± 1°C with a humidity of 50 ± 0.5% RH; and the coefficient of friction at the point of a 5 cm displacement is designated as the dynamic coefficient of friction.
Inventors:
ENOMOTO YOSUKE (JP)
Application Number:
PCT/JP2021/025241
Publication Date:
April 28, 2022
Filing Date:
July 05, 2021
Export Citation:
Assignee:
SUMITOMO BAKELITE CO (JP)
International Classes:
B32B27/00; B29C33/68; H05K1/03
Domestic Patent References:
| WO2012077571A1 | 2012-06-14 |
Foreign References:
| JP2010209208A | 2010-09-24 | |||
| JP2016002730A | 2016-01-12 | |||
| JP2019217780A | 2019-12-26 | |||
| KR20120099546A | 2012-09-11 | |||
| JP2020004896A | 2020-01-09 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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