Polyphenylene sulphide-based compositions with improved impact strength and process for preparing them

US6849697B2 · kind B2 · utility

Assignee

• Solvay Polyolefins, S.A. · BE

Inventors

• Morand Lambla · Schiltigheim, FR
• Raphael Mestanza · Kuntzig, FR
• Dar-Jong Lin · Fuxing District, TW
• Eric Vandevijver · Woluwe-Saint-Lambert - Sint-Lambrechts-Woluwe, BE
• Marie-Paule Collard · Vilvoorde, BE

Key dates

• Filing date: Mar 11, 2003
• Grant date: Feb 1, 2005
• Expiry date: Mar 11, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L23/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

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.