Title:
SILICONE RELEASE POLYESTER FILM AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/219057
Kind Code:
A1
Abstract:
The present invention provides: a silicone release polyester film which is suitable for use as a carrier film during the production of a multilayer ceramic capacitor and the like, and which exhibits excellent adhesion and excellent releasability suitable for sheet molding ranging from easy separation to uneasy separation; and a method for producing this silicone release polyester film. The present invention provides a silicone release polyester film which has, on at least one surface of a polyester film, a coating layer that is formed using a coating composition for mold release, the coating composition containing an aqueous dispersion (1) of one or more silicones (A) that each contain an alkenyl group and/or a Q unit represented by SiO4/2, an aqueous dispersion (2) of a silicone (B) that has a hydrogen atom directly bonded to an Si atom as represented by an Si-H group, a crosslinking reaction inhibitor, a platinum-based catalyst and a nonionic emulsifying agent. With respect to this silicone release polyester film, the number average molecular weight of the silicones A is 150,000 or more; and the content of Si atoms in the Q unit is 0.05% by mole to 60% by mole.
Inventors:
NISHIYAMA MASANORI (JP)
Application Number:
PCT/JP2023/017283
Publication Date:
November 16, 2023
Filing Date:
May 08, 2023
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B32B27/00; B05D5/08; B05D7/24; B32B27/36
Foreign References:
| JP2021011081A | 2021-02-04 | |||
| JP2022036894A | 2022-03-08 | |||
| JP2005047177A | 2005-02-24 | |||
| JP2002338910A | 2002-11-27 | |||
| JP2005047175A | 2005-02-24 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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