Thermoplastic polymer masterbatch

US10246580B2 · kind B2 · utility

Assignees

• Dow Silicones Corporation · US
• Multibase Inc. · US
• MULTIBASE SA · FR

Inventors

• Aurelie Arrigoni · Schiltigheim, FR
• Stephane Cornelis · Chapelle-lez-Herlaimont, BE
• Sandrine Faletto · Voiron, FR
• Yann Gradelet · Chambéry, FR
• Jean De La Croix Habimana · Maurage, BE
• Ted Hays · Akron, US
• Ludovic Perrin · Chapelle-lez-Herlaimont, BE
• Patrick Prele · Aurillac, FR

Key dates

• Filing date: Mar 2, 2015
• Grant date: Apr 2, 2019
• Expiry date: Mar 22, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2310/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for increasing the scratch resistance of a composition comprising a thermoplastic organic polymer and a scratch resistant polymer composition per se. The process for increasing the scratch resistance of a composition comprising a thermoplastic organic polymer (P) comprises reactively mixing a thermoplastic organic polymer (A) and an organopolysiloxane (B) in a first step (I) at a temperature at which the thermoplastic organic polymer (A) and the organopolysiloxane (B) are in liquid phases to form a masterbatch. The organopolysiloxane (B) contains at least one functionality capable of reacting with the thermoplastic organic polymer (A) so that a copolymer of components (A) and (B) is formed in the masterbatch during the reactive mixing. The process further comprises a second step (II) of mixing the masterbatch with the composition comprising the thermoplastic organic polymer (P).