Urethane resin composition, adhesive, and synthetic leather
AssigneeDIC Corporation
InventorsYayi Tseng, Ryo Maeda
Life of this patent
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Abstract
A urethane resin composition including water, the urethane resin composition being produced using a biomass raw material and having high oleic-acid resistance, excellent low-temperature flexibility, and high peel strength. A urethane resin composition including an anionic urethane resin (X) and water (Y), in which the anionic urethane resin (X) is produced using a polyol (a) including a biomass-derived polycarbonate polyol (a1), a polyisocyanate (b), and an alkanolamine (c), as essential raw materials. Furthermore, An adhesive including the urethane resin composition and a synthetic leather having an adhesive layer formed from the adhesive.
Claims5
A urethane resin composition comprising:
- an anionic urethane resin (X);
- and
- water (Y),
- the anionic urethane resin (X) being produced using,
- a polyol (a) including a biomass-derived polycarbonate polyol (a1);
- a polyisocyanate (b);an alkanolamine (c);
- and
- a chain extender (e), wherein the chain extender (e) comprises a chain extender (e1) having two or more amino groups, an amount of the chain extender (e) is within a range of 0.001% to 0.1% by mass, based on a total mass of raw materials constituting the anionic urethane resin (X),
- wherein the biomass-derived polycarbonate polyol (a1) is produced using 1,4-butanediol and a biomass-derived decanediol as raw materials, and a molar ratio of 1,4-butanediol to the biomass-derived decanediol is within a range of 5/95 to 95/5, and
- wherein a molar equivalent ratio (c)/(e1) of the alkanolamine (c) to the chain extender (e1) is within a range of 80/20 to 97/3.
Dependencies are inferred from the claim text.