Title:
RESIN COMPOSITION CONTAINING HYDROXYL GROUP-CONTAINING POLYESTER RESIN, AND COATING FILM
Document Type and Number:
WIPO Patent Application WO/2023/021973
Kind Code:
A1
Abstract:
[Problem] To provide a hydroxyl group-containing polyester resin composition that exhibits high gas barrier performance through the effect of high cohesive energy due to hydrogen bonding of the polyester resin itself even without using a large amount of isocyanate curing agent and can be used as a flexible adhesive, and a coating film and a packaging film formed therefrom. [Solution] A resin composition that contains a hydroxyl group-containing polyester resin and satisfies (1)-(2) below. (1) The composition contains a polycarboxylic acid component and a polyhydric alcohol component as constituent components of the hydroxyl group-containing polyester resin and contains 10 mol% or more of a polycarboxylic acid component having a hydroxyl group when the total amount of polycarboxylic acid component is taken to be 100 mol%. (2) The composition contains 0.1-15 mass parts or more of isocyanate curing agent per 100 mass parts of hydroxyl group-containing polyester resin.
Inventors:
OCHIAI KENTO (JP)
UCHIYAMA SHOKO (JP)
UCHIYAMA SHOKO (JP)
Application Number:
PCT/JP2022/029520
Publication Date:
February 23, 2023
Filing Date:
August 01, 2022
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08G18/42; C08G63/06; C08G63/60
Domestic Patent References:
| WO2019049852A1 | 2019-03-14 | |||
| WO2020095832A1 | 2020-05-14 |
Foreign References:
| US6103822A | 2000-08-15 | |||
| JPH06340733A | 1994-12-13 | |||
| JPH06340727A | 1994-12-13 | |||
| CN107857871A | 2018-03-30 | |||
| JPH06157703A | 1994-06-07 | |||
| JP2011225851A | 2011-11-10 |
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