Title:
AQUEOUS COMPOSITE RESIN DISPERSION AND METHOD FOR PRODUCING AQUEOUS COMPOSITE RESIN DISPERSION
Document Type and Number:
WIPO Patent Application WO/2020/105569
Kind Code:
A1
Abstract:
The present invention is an aqueous composite resin dispersion which contains composite resin particles that contain a polyurethane resin (U) and a vinyl resin (V) within each particle, and which is configured such that: the polyurethane resin (U) is a reaction product of an active hydrogen component (A), an organic isocyanate component (B) and a chain extender (E); at least one of the active hydrogen component (A), the organic isocyanate component (B) and the chain extender (E) contains a tri- or higher functional compound; and a film obtained by drying this aqueous composite resin dispersion satisfies all of the requirements (1)-(3) described below. (1) The gel fraction with respect to N, N-dimethylformamide is 35-100%.
(2) The elongation at break is 200-1,000%.
(3) The storage elastic modulus E' at 25°C is 100-3,000 MPa.
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Inventors:
WATANABE MASAHIRO (JP)
YAMANE MASUMI (JP)
YAMANE MASUMI (JP)
Application Number:
PCT/JP2019/045001
Publication Date:
May 28, 2020
Filing Date:
November 18, 2019
Export Citation:
Assignee:
SANYO CHEMICAL IND LTD (JP)
International Classes:
C08F2/44; C08G18/00; C08G18/08; C08G18/10
Foreign References:
| JPH01104651A | 1989-04-21 | |||
| US4644030A | 1987-02-17 | |||
| JP2014167036A | 2014-09-11 |
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
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