Reprocessing of polymeric compositions
US11174358B2 · kind B2 · utility
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26Claims
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Key dates
| Filing date | Jul 3, 2019 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Oct 13, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method may include reprocessing a polymer composition comprising a crosslinked polymeric composition, wherein the crosslinked polymeric composition comprises a matrix polymer having a polar polymer internal phase that is selectively crosslinked with a crosslinking agent, wherein the reprocessed polymer composition retains an environmental stress cracking resistance within 60% of the value for the initial polymer composition when measured according to ASTM D-1693 procedure B and wherein the reprocessed polymer composition presents a Normalized Property Balance Index (NPBI) greater than about 1.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.