Elastomeric ethylene/α-olefin copolymer particles, and methods and articles thereof
US12187882B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2020 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Sep 19, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L1/28
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The teachings herein relates to elastomeric particles including 98.5 weight percent or more of an elastomeric ethylene/α-olefin copolymer. The copolymer preferably has a weight average molecular weight of 10 to 2,000 kg/mol. The copolymer preferably has a Mooney viscosity of at least 10 (ML 1+4 at 125° C., ASTM D1646). The particles preferably include 0 to 0.4 weight percent of salts of multivalent metal ions. The salts of multivalent metal ions preferably includes stearates and palmitates of multivalent metal ions. The elastomeric ethylene/α-olefin copolymer preferably is an EPM or an EPDM. The blends including the particles preferably comprise a different elastomer, a filler, or a curing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.