Use of a copolymer of ethylene and of acrylate(s) prepared in a tubular reactor for modifying the melt rheology of a thermoplastic composition
US11555116B2 · kind B2 · utility
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Key dates
| Filing date | Mar 26, 2019 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Jun 20, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided herein is a copolymer of ethylene and acrylate(s) having a melt flow index (MFI) greater than or equal to 50 g/10 minutes, obtained by free-radical copolymerisation under high pressure carried out in a tubular reactor, and methods of using the same. Also provided herein is a thermoplastic composition, particularly intended to be extruded or injection moulded, having one or more copolymers of ethylene and acrylate(s) at a content ranging from 0.1 to 20 wt. %, and one or more thermoplastic polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.