Urethane resin particles
US9023941B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2011 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Nov 9, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2140/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a slush molding material which exhibits excellent low-temperature meltability and heat resistance and which can yield a molded product having excellent tensile strength and elongation. The present invention is urethane resin particles (D1) comprising a urethane or urethane-urea resin (U1) that has residues (j) bonded thereto covalently, said residues (j) being residues derived from an at least trivalent aromatic polycarboxylic acid by removing hydroxyl groups, or urethane resin particles (D2) comprising a urethane resin composition (S2) which comprises both a urethane or urethane-urea resin (U2) and a compound (E) that has a residue (j) derived from an at least trivalent aromatic polycarboxylic acid by removing hydroxyl groups, said compound (E) being represented by general formula (1), wherein the residues (j) are linked respectively to urethane or urea groups (u) of the resin (U1) or (U2) by hydrogen bonds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.