Polyurethane elastomers, bio-additive foam compositions
US10934385B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2020 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Sep 9, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2410/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyurethane elastomer composition of (a) an organic diisocyanate, (b) a polyester resin; (c) a chain extender comprised of a polyhydric alcohol, (d) a crosslinker, (e) a plasticizer, (f) a surfactant, (g) a blowing or foaming agent, and (h) an optional dye; and where the elastomer has, for example, a hardness value of, for example, from about 20 Asker C to about 60 Asker C, a tensile strength of, for example, from about 1 MPa to about 10 MPa, a resilience of, for example, from about 30 percent to about 60 percent, an elongation at break of from about 150 percent to about 700 percent, and a tear strength of, for example, from about 2 Newtons/millimeters2 to about 4 Newtons/millimeters2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.