Copolymers containing styrene oxide and use thereof as...

Details Copolymers containing styrene oxide and use thereof as... Copolymers containing styrene oxide and use thereof as...

2003-10-30

2008-12-09

Cain, Edward J (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S800000

Reexamination Certificate

active

07462660

ABSTRACT:
The invention relates to copolymers of formula (I) wherein R1is hydrogen, a C1-C5-alkyl radical or C2-C5-alkenyl radical which can also contain heteroatoms, an acid group or an aliphatic or aromatic group comprising 1-50 carbon atoms, including an acid group, R2and R3independently represent hydrogen, methyl and/or ethyl, n ranges from 0-100, and m ranges from 3 to 30, and k ranges from 1-200, and A is hydrogen, an acid group, a C1-C5-alkyl radical or a C2-C8-alkenyl radical which can also contain heteroatoms, an aliphatic or aromatic group comprising 1-50 carbon atoms, including an acid group, or a copolymer unit of formula (II), wherein R4is hydrogen, a C1-C5-alkyl radical or a C2-C5-alkenyl radical which can also contain heteroatoms, an acid group or an aliphatic or aromatic group comprising 1-50 carbon atoms, including an acid group, R5is hydrogen, methyl and/or ethyl, x ranges from 0 to 100, and y ranges from 3-30, wherein, if A is formula (2), R1represents hydrogen or an acid group.

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