Polycarbodiimide composition, method for producing a polycarbodiimide composition, water-dispersed composition, solution composition, resin composition, and cured resin
US11390751B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Jun 20, 2017 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Aug 30, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2115/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The polycarbodiimide composition is a reaction product of polyisocyanate having a primary isocyanate group with alcohol, wherein the alcohol contains at least one oxyethylene-containing alcohol containing an oxyethylene group, and at least one oxyethylene-noncontaining alcohol containing no oxyethylene group, the at least one oxyethylene-noncontaining alcohol has a solubility parameter of 11.20 (cal/cm3)1/2 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.