Thermoplastic silicone elastomers employing radical cure
Thermoplastic elastomers are disclosed which are prepared by;(I) mixing,(A) a thermoplastic resin comprising more than 50 percent by volume of a polyamide or a polyester resin,(B) a silicone base comprising;(B') 100 parts by weight of a diorganopolysiloxane gum having a plasticity of at least 3...
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| creator | JULIEN CHRISTOPHER JAMES LIAO JUN FOURNIER FRANCES MARIE ROMENESKO DAVID JOSEPH TANGNEY THOMAS JOHN CHORVATH IGOR LEE MICHAEL KANG-JEN NAKANISHI KOJI OLDINSKI ROBERT LEO RABE RICHARD LEROY LEE YONGJUN LI DAWEI |
| description | Thermoplastic elastomers are disclosed which are prepared by;(I) mixing,(A) a thermoplastic resin comprising more than 50 percent by volume of a polyamide or a polyester resin,(B) a silicone base comprising;(B') 100 parts by weight of a diorganopolysiloxane gum having a plasticity of at least 30 and having an average of at least 2 alkenyl groups per molecule and(B'') 5 to 200 parts by weight of a reinforcing filler,wherein the weight ratio of said silicone base to said polyamide or polyester resin is from 35:65 to 85:15,(C) a compatibilizer,(D) a radical initiator, present in an amount sufficient to cure said diorganopolysiloxane gum, and optionally(E) a stabilizer,(II) dynamically vulcanizing said diorganopolysiloxanes gum,wherein at least one property of the thermoplastic elastomer selected from tensile strength or elongation is at least 25% greater than the respective property for a corresponding simple blend wherein said diorganopolysiloxane is not cured and said thermoplastic elastomer has an elongation of at least 25%. |
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FOURNIER FRANCES MARIE ; ROMENESKO DAVID JOSEPH ; TANGNEY THOMAS JOHN ; CHORVATH IGOR ; LEE MICHAEL KANG-JEN ; NAKANISHI KOJI ; OLDINSKI ROBERT LEO ; RABE RICHARD LEROY ; LEE YONGJUN ; LI DAWEI</creatorcontrib><description>Thermoplastic elastomers are disclosed which are prepared by;(I) mixing,(A) a thermoplastic resin comprising more than 50 percent by volume of a polyamide or a polyester resin,(B) a silicone base comprising;(B') 100 parts by weight of a diorganopolysiloxane gum having a plasticity of at least 30 and having an average of at least 2 alkenyl groups per molecule and(B'') 5 to 200 parts by weight of a reinforcing filler,wherein the weight ratio of said silicone base to said polyamide or polyester resin is from 35:65 to 85:15,(C) a compatibilizer,(D) a radical initiator, present in an amount sufficient to cure said diorganopolysiloxane gum, and optionally(E) a stabilizer,(II) dynamically vulcanizing said diorganopolysiloxanes gum,wherein at least one property of the thermoplastic elastomer selected from tensile strength or elongation is at least 25% greater than the respective property for a corresponding simple blend wherein said diorganopolysiloxane is not cured and said thermoplastic elastomer has an elongation of at least 25%.</description><edition>7</edition><language>eng</language><subject>CHEMISTRY ; 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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Thermoplastic silicone elastomers employing radical cure |
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