公开(公告)号：US10253180B2

公开(公告)日：2019-04-09

申请号：US15503229

申请日：2015-08-11

Applicant: Multibase SA

Inventor： Sylvain Boucard ,  Yann Gradelet

IPC: C08L75/04 ,  C08G77/12 ,  C08G77/20 ,  C08K3/04 ,  C08K3/36 ,  C08L9/06 ,  C08L33/00 ,  C08L25/08 ,  C08L83/00

Abstract: The invention relates to thermoplastic elastomer compositions comprising a blend of a thermoplastic urethane polymer and a silicone composition, and to a process for forming a vulcanized thermoplastic elastomer composition. The thermoplastic elastomer composition comprises a blend of a thermoplastic organic polymer comprising a urethane polymer and (B) a silicone composition comprising (B1) a silicone base comprising (B1a) a diorganopolysiloxane gum having an average of at least 2 alkenyl groups per molecule and (B1b) from 1 to 50% by weight based on the diorganopolysiloxane gum (B1a) of a reinforcing filler, and (B2) an organohydrido silicone compound which contains an average of at least 2 silicon-bonded hydrogen groups per molecule, wherein the weight ratio of the thermoplastic organic polymer (A) to the silicone composition (B) is in the range 55:45 to 80:20.

公开(公告)号：US10358548B2

公开(公告)日：2019-07-23

申请号：US15528117

申请日：2015-11-20

Applicant: Multibase SA

Inventor： Sylvain Boucard ,  Herve Faucheron ,  Guillaume Gourdain

IPC: C08L23/14 ,  C08L83/04 ,  C08L23/08 ,  C08L23/16 ,  C08L25/10 ,  C08L51/06 ,  C08L83/00 ,  C08G77/12 ,  C08G77/20 ,  C08K3/26

Abstract: Thermoplastic silicone elastomer compositions are disclosed. The thermoplastic elastomer compositions comprise a blend of an organic thermoplastic elastomer and a silicone composition. A process for forming a vulcanized thermoplastic elastomer composition is also disclosed. The thermoplastic elastomer compositions can be used to form functional and/or aesthetic automotive parts such as gear knobs, seat belt connectors, interior mats, airbag protective covers, and over-molded skins for dash boards and armrests; to form appliance parts; to form soft-feel grips for hand held devices; and to form medical devices, sporting goods and general rubber parts. The thermoplastic elastomer compositions provide durable aesthetics, haptic and ergonomic properties along with stability to most commonly used chemicals and high mechanical performance, abrasion and scratch resistance.