Sheet-like material
US-11441033-B2 · Sep 13, 2022 · US
Urethane resin composition and leather sheet
US12410316B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12410316-B2 |
| Application number | US-202017773009-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 10, 2020 |
| Priority date | Oct 28, 2019 |
| Publication date | Sep 9, 2025 |
| Grant date | Sep 9, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
A water-containing urethane resin composition that is produced using a biomass raw material and excellent in oleic acid resistance, texture, and liquid mixture stability. A urethane resin composition including: a urethane resin (A) having an anionic group and a nonionic group and produced using as a raw material a polycarbonate polyol (a1) produced using biomass-derived decanediol as a raw material; a nonionic emulsifier (B); and water (C). A leather sheet in which a coagulated product of the urethane resin composition is present in a fibrous substrate. Both the urethane resin (A) and the nonionic emulsifier (B) preferably have an oxyethylene group and an oxypropylene group.
First claim
Opening claim text (preview).
The invention claimed is: 1. A urethane resin composition, comprising: a urethane resin (A) having an anionic group and a nonionic group and produced using as a raw material a polycarbonate polyol (a1) produced using biomass-derived decanediol as a raw material; a nonionic emulsifier (B); and water (C). 2. The urethane resin composition according to claim 1 , wherein the nonionic emulsifier (B) has an oxyethylene group and an oxypropylene group. 3. The urethane resin composition according to claim 1 , wherein the polycarbonate polyol (a1) is produced further using butanediol as a raw material. 4. The urethane resin composition according to claim 3 , wherein a molar ratio [(C4)/(C10)] of the butanediol (C4) to the biomass-derived decanediol (C10) in the polycarbonate polyol (a1) is within a range of 5/95 to 95/5. 5. The urethane resin composition according to claim 1 , wherein the nonionic group in the urethane resin (A) includes an oxyethylene group and an oxypropylene group. 6. The urethane resin composition according to claim 5 , wherein the oxyethylene group and the oxypropylene group are supplied from a polyol having an oxyethylene group and an oxypropylene group. 7. A leather sheet, comprising a coagulated product of the urethane resin composition according to claim 1 present in a fibrous substrate.
Assignees
Inventors
Classifications
characterised by the macromolecular diols used · CPC title
Cyclic ethers having no atoms other than carbon and hydrogen outside the ring · CPC title
saturated · CPC title
containing mixed oxyethylene-oxypropylene or oxyethylene-higher oxyalkylene end groups · CPC title
- C08G18/44Primary
Polycarbonates · CPC title
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Frequently asked questions
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- What does patent US12410316B2 cover?
- A water-containing urethane resin composition that is produced using a biomass raw material and excellent in oleic acid resistance, texture, and liquid mixture stability. A urethane resin composition including: a urethane resin (A) having an anionic group and a nonionic group and produced using as a raw material a polycarbonate polyol (a1) produced using biomass-derived decanediol as a raw mate…
- Who is the assignee on this patent?
- Dainippon Ink & Chemicals
- What technology area does this patent fall under?
- Primary CPC classification C08G18/44. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 09 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).