Additive mixture for improving the mechanical properties of polymers

US6593403B1 · kind B1 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Dirk Simon · Mutterstadt, DE
• Rudolf Pfaendner · Rimbach, DE
• Andreas Steinert · Langenfeld, DE

Key dates

• Filing date: Oct 24, 2000
• Grant date: Jul 15, 2003
• Expiry date: Jan 15, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L83/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a composition comprisinga) at least one polyolefin or vinyl polymer;b) at least one di- or poly-functional (co)polymer or (co)oligomer having a glass transition temperature of less than 10° C., wherein the functional group is a carbon-carbon double bond, an epoxy group, an amine group, a carboxylic acid group, a carboxylic acid ester group or a carboxylic anhydride group, an OH group, an SH group or an isocyanate group, andc) a multifunctional epoxide, which is different from the di- or poly-functional (co)polymer or (co)oligomer wherein the functional group is an epoxy group.The invention also relates to a method of improving the mechanical properties of polyolefins and to the polyolefin plastics articles produced thereby and to the use of di- or poly-functional (co)polymers or (co)oligomers having a glass transition temperature of less than 10° C. together with a multifunctional epoxy compound in improving the mechanical properties of polyolefins.