Thermoplastic resin compositions comprising a rigid dispersed phase
US6462129B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2000 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Apr 17, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L101/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a thermoplastic composition comprising: a matrix-forming thermoplastic polymer (M), rigid nodules obtained by radical polymerization, and optionally an impact modifier (S). It also relates to a process comprising, in a first stage, forming a homogeneous solution of precursor of the nodules in the thermoplastic (M) in the molten state, in a second stage, introducing the initiator while remaining at a temperature below which the initiator becomes active, and, in a third stage, heating to a temperature sufficient to cause crosslinking of the precursor and to form rigid nodules while kneading the composition, the impact modifier being introduced during the first or the second stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.