Polyesterified block copolymer and process for producing the...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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C525S064000, C525S067000, C525S068000, C525S069000, C525S240000, C525S241000, C525S242000, C525S316000, C525S327700

Reexamination Certificate

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07452939

ABSTRACT:
A polyesterified block copolymer represented by the general formula (1), (2) or (3) (for example, polyolefin/polyolefin block copolymer of the following general formula (1)), obtained by an esterification reaction between a terminal maleated polymer and a terminal hydroxylated polymer. Also, a process for producing the same is provided. (1) wherein each of R1and R2represents hydrogen or methyl; m is an integer of 10 to 200; n is an integer 10 to 200; k is an integer 5 of to 3000.

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