Copolymerizable emulsifiers and emulsion polymerization...

Details Copolymerizable emulsifiers and emulsion polymerization... Copolymerizable emulsifiers and emulsion polymerization...

2004-08-30

2010-10-12

Wu, David (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S319000

Reexamination Certificate

active

07812106

ABSTRACT:
Processes for the production of polymers by emulsion polymerization of olefinically unsaturated monomers, in which olefinically unsaturated esters corresponding to formula (I):in-line-formulae description="In-line Formulae" end="lead"?HOOC—CH═CH—COO—(BO)z(PO)y(EO)xR1  (I)in-line-formulae description="In-line Formulae" end="tail"?in which R1is an alkyl group or alkenylphenol group containing 8 to 24 carbon atoms, BO is a butylene oxide unit, PO is a propylene oxide unit and EO is an ethylene oxide unit and the indices x, y and z independently of one another stand for 0 or for numbers of 1 to 50, with the proviso that at least one of the indices x, y and z is not 0, the carboxyl group of the compounds (I) being completely or partly present in neutralized form and the C═C double bond being cis- or trans-configured; are used as copolymerizable emulsifiers.

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