Method for controlling dispersion size of elastomer in thermoplastic elastomer composition
AssigneesThe Yokohama Rubber Co., Ltd., ExxonMobil Chemical Patents Inc.
InventorsAndy Tsou, Yuichi Hara
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Abstract
A method for controlling a dispersion size of an elastomer in a thermoplastic elastomer composition having improved durability and impermeability obtained by melt-mixing (A) a halogenated isobutylene elastomer, (B) polyamide and (C) a dispersion aid, and dynamically vulcanizing the resultant blend to form the dynamically vulcanized polymer blend, wherein the halogenated isobutylene elastomer is dispersed in the polyamide matrix at a volume-average dispersion diameter of less than 2.0 μm.
Claims8
A method for controlling a dispersion size of an elastomer in a thermoplastic elastomer composition having improved durability and impermeability comprising:
- melt-mixing (A) a halogenated isobutylene elastomer, (B) polyamide and (C) a dispersion aid;
- and
- dynamically vulcanizing the resultant blend to obtain the dynamically vulcanized polymer blend
- wherein the halogenated isobutylene elastomer is dispersed in the polyamide matrix at a volume-average dispersion diameter Dv of less than 2.0 μm.
Dependencies are inferred from the claim text.