Thermoplastic vulcanizate comprising interpolymers of...

Details Thermoplastic vulcanizate comprising interpolymers of... Thermoplastic vulcanizate comprising interpolymers of...

2006-03-15

2009-08-25

Nutter, Nathan M (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S192000, C525S210000, C525S211000, C525S232000, C525S239000, C525S240000, C525S241000

Reexamination Certificate

active

07579408

ABSTRACT:
Thermoplastic vulcanizates comprise at least an ethylene/α-olefin interpolymer and at least one thermoplastic polymer, such as polyolefin. The ethylene/α-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block interpolymer has a number of unique characteristics disclosed here. The block interpolymer is either used as a compatibilizer between a vulcanizable elastomer and a thermoplastic polymer or as a vulcanizable elastomer when it is in the EPDM form. The thermoplastic vulcanizates can be profiled extruded to make profiles and gaskets.

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