Reacting alkylene oxide and glycidy ether to produce OH- or...

Details Reacting alkylene oxide and glycidy ether to produce OH- or... Reacting alkylene oxide and glycidy ether to produce OH- or...

2008-05-14

2009-10-20

Sellers, Robert (Department: 1796)

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

Synthetic resins

From carboxylic acid or derivative thereof

C525S404000, C525S405000, C528S360000

Reexamination Certificate

active

07605224

ABSTRACT:
Disclosed are copolymers made of alkylene oxides and glycidyl ethers according to formula (I)in which R1is hydrogen or a C1-C4-alkyl radical, R2and R4are an alkyl or aryl radical having 1 to 30 carbon atoms, and R3is an alkyl or aryl radical having 1 to 50 carbon atoms, which may also contain heteroatoms. A is an alkylene unit having 2 to 6 carbon atoms. In formula (1), x is a number from 0 to 10, y is a number from 0 to 10, n is a number from 0 to 100, k is a number from 1 to 100, R5is an acid group or hydrogen, and m is a number from 1 to 500, with the proviso that (y+n) must be at least 1.

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