Low-resilience polyurethane foam and production method thereof
US9611370B2 · kind B2 · utility
1Cited by
1References
5Claims
0Family size
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Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Apr 19, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A low-resilience polyurethane foam is produced by allowing a low-resilience polyurethane foam composition containing polyisocyanate (a), polyol (b), catalyst (c), and blowing agent (d) to react. The polyisocyanate (a) contains bis(isocyanatomethyl)cyclohexane, and the polyol (b) contains 5 to 30 mass % of polyol (b-1) having an average functionality of 1.5 to 4.5 and a hydroxyl number of 20 to 70 mgKOH/g, and 70 to 95 mass % of polyol (b-2) having an average functionality of 1.5 to 4.5 and a hydroxyl number of 140 to 300 mgKOH/g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.