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Santoprene
Santoprene thermoplastic vulcanizates (TPV) are part of the thermoplastic elastomer (TPE) family of polymers, but are closest in elastomeric properties to EPDM thermoset rubber, combining the characteristics of vulcanized rubber with the processing properties of thermoplastics. Santoprene TPV is a dynamically vulcanized alloy consisting mostly of fully cured EPDM rubber particles encapsulated in a polypropylene (PP) matrix. There are almost 100 grades in the Santoprene TPV product portfolio which are used globally in the automotive, household appliance, electrical, construction and healthcare markets. ExxonMobil is the sole proprietor of the material.
==Overview==
Santoprene TPV was created following several years of research and development to find a new material for injection molded tires. While this search for a new tire material was unsuccessful, it led to the development of Santoprene TPV, which combines the characteristics of a vulcanized rubber with the processing properties of thermoplastics. The first sales of developmental products were in 1977, the year it was registered by Monsanto, and it was fully commercialized in 1981.〔(25th Anniversary article. EMC website )〕
Part of the TPE family of polymers, TPV is the closest in elastomeric properties to EPDM thermoset rubber. TPVs offer a combination of elastomeric properties, like compression and tension set, coupled with aging performance and chemical resistance.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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