Thermoplastic elastomers and process for making same
AssigneeExxonMobil Chemical Patents Inc.
InventorsMaria D. Ellul, Jianya Cheng
Life of this patent
Estimating the term…
Abstract
A process for producing a thermoplastic elastomer composition, the process comprising synthesizing an elastomeric copolymer by polymerizing ethylene, an α-olefin, and optionally a diene monomer within the gas phase to thereby produce a gas-phase elastomeric copolymer, blending the gas-phase elastomeric copolymer with a thermoplastic polymer to form a mix of the elastomeric copolymer and thermoplastic polymer, and dynamically vulcanizing the gas-phase elastomeric copolymer within the mix of the elastomeric copolymer and thermoplastic polymer.
Claims20
A process for producing a thermoplastic elastomer composition, said process comprising:
- synthesizing an elastomeric copolymer by polymerizing ethylene, an α-olefin, and optionally a diene monomer within the gas phase to thereby produce a gas-phase elastomeric copolymer;
- blending the gas-phase elastomeric copolymer with a thermoplastic polymer to form a mix of the elastomeric copolymer and thermoplastic polymer;
- and
- dynamically vulcanizing the gas-phase elastomeric copolymer within the mix of the elastomeric copolymer and thermoplastic polymer.
A process for producing a thermoplastic elastomer composition, said process comprising:
- 3 providing a granular elastomeric copolymer having dispersed therein carbon black, where said granular elastomeric copolymer is synthesized by using gas-phase polymerization;
- and dynamically vulcanizing the granular elastomeric copolymer within a blend that includes the elastomeric copolymer and a thermoplastic polymer.
A thermoplastic elastomer composition comprising:
- a blend of a vulcanized elastomeric copolymer and a thermoplastic polymer, where said vulcanized elastomeric copolymer derives from the vulcanization of an elastomeric copolymer that was synthesized by using gas phase polymerization techniques, and where the vulcanized elastomeric copolymer and the thermoplastic polymer have carbon black dispersed therein.
Dependencies are inferred from the claim text.