Title:
SOLUTION TO BE COATED ONTO GLASS SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/2019/111870
Kind Code:
A1
Abstract:
The present invention provides a coating solution having good storage stability, which can be adhered satisfactorily onto a glass substrate even when the temperature rising rate is increased in the thermal curing of a polyamic acid (PAA) coating film, and which can be thermally cured into a polyimide film that can be detached from the glass substrate easily. The present invention relates to a solution to be coated onto a glass substrate, which contains a PAA, an amide-type solvent and an alkoxysilane compound and is characterized as follows: (1) the content of the alkoxysilane compound is 5 to 100 ppm exclusive relative to the mass of the PAA; and (2) the molecular weight of the alkoxysilane compound is 100 to 300 inclusive.
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Inventors:
SUGIMOTO YOSUKE (JP)
YAMADA YUKI (JP)
YOSHIDA TAKESHI (JP)
SHIGETA AKIRA (JP)
ECHIGO YOSHIAKI (JP)
YAMADA YUKI (JP)
YOSHIDA TAKESHI (JP)
SHIGETA AKIRA (JP)
ECHIGO YOSHIAKI (JP)
Application Number:
PCT/JP2018/044480
Publication Date:
June 13, 2019
Filing Date:
December 04, 2018
Export Citation:
Assignee:
UNITIKA LTD (JP)
International Classes:
C03C17/30; B32B37/06; C08G73/10; C08K5/5415; C08L79/08; C09D7/63; C09D179/08; B32B17/10
Domestic Patent References:
| WO2017068936A1 | 2017-04-27 | |||
| WO2013125193A1 | 2013-08-29 | |||
| WO2016167296A1 | 2016-10-20 |
Foreign References:
| JP2002038007A | 2002-02-06 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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