Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2007-01-30
2007-01-30
Mruk, Brian (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S434000, C510S467000, C510S476000, C510S477000
Reexamination Certificate
active
10267296
ABSTRACT:
A method for the production of polycarboxylic acids is provided via the present invention. The novel method herein comprises the steps of i) mixing a phosphorous containing reducing agent with at least one carboxylic acid monomer to form a reaction mixture; ii) adding an equivalent of base to the reaction mixture to provide a partially neutralized reaction mixture; and iii) adding a free radical generator to the partially neutralized reaction mixture under polymerization conditions to form a phospho/carboxylic acid polymer containing solution. Preferred monomers, reducing agents and free radical generators are also disclosed.
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Gardner Robb Richard
Scheper William Michael
Sivik Mark Robert
Corstanje Brahm J.
Matthews Armina E.
Mruk Brian
The Procter & Gamble & Company
William Zerby Kim
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