Polyoxymethylene copolymers, their preparation and use

Details Polyoxymethylene copolymers, their preparation and use Polyoxymethylene copolymers, their preparation and use

2006-02-21

2006-02-21

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...

C525S414000, C525S398000, C528S230000, C528S232000, C528S248000, C528S249000, C528S250000

Reexamination Certificate

active

07001959

ABSTRACT:
Copolymers are described containing blocks of the structural repeat units of the formula I and blocks containing structural units of the formula IIin-line-formulae description="In-line Formulae" end="lead"?[—O—CH2—]x,  (I)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?[—O—R1—],  (II)in-line-formulae description="In-line Formulae" end="tail"?where R1is a divalent radical derived from a hydroxy-terminated aliphatic or cycloaliphatic oligomer or polymer which, where appropriate, has ether groups and/or carbonyloxy groups in the chain, and x is a whole number, at least 10.The copolymers may be used for producing moldings.

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