Soft propylene-based resin composition

Details Soft propylene-based resin composition Soft propylene-based resin composition

2006-09-12

2006-09-12

Seidleck, James J. (Department: 1711)

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

Synthetic resins

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

C525S240000, C526S351000

Reexamination Certificate

active

07105604

ABSTRACT:
Soft propylene-based resin compositions, which comprise substantially the following block (I) and block (II):Block (I): propylene-based polymer having propylene unit chain segments that bond in a mode of head-to-tail bonding, in which the chain segment has an isotactic block-containing stereoblock structure;Block (II): copolymer containing at least propylene and ethylene, exhibit good flexibility, transparency, and heat resistance.

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