Polyphenylene sulphide-based compositions with improved impact strength and process for preparing them
US6699946B1 · kind B1 · utility
26Cited by
2References
7Claims
0Family size
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Key dates
| Filing date | Oct 24, 1994 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Jan 18, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyphenylene sulphide-based compositions essentially containing 60 to 99.5% by weight of polyphenylene sulphide and 0.5 to 40% by weight of a combination (C) containing a compound (C1) chosen from olefinic elastomers containing epoxy groups and a compound (C2) chosen from crosslinking agents containing functional groups which are reactive towards the epoxy groups of the compound (C1) and are chosen from amino, hydroxyl, carboxyl and carboxylic acid anhydride groups. They are obtained by melt-blending polyphenylene sulphide with each of the compounds (C1) and (C2) of the combination (C) successively and in any order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.