Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2007-09-18
2007-09-18
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S005000, C524S609000, C526S221000, C526S222000, C526S223000, C526S328500
Reexamination Certificate
active
10874502
ABSTRACT:
The present invention relates to cement dispersant that is a copolymerization product of a first monomer (A) comprising a carboxylic acid, a second monomer (B) comprising an alkoxylated allyl alcohol sulfate, and, optionally, a third monomer (C) comprising an alkoxylated allyl alcohol. The cement dispersant according to the invention provides improved slump life properties and water reduction properties in cement admixtures.
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Supplementary European Search Report for EP Application No. 04755931, dated Jun. 2, 2006, three pages.
Bair Keith A.
Savoly Arpad
Veal Bennie
GEO Specialty Chemicals, Inc.
Rankin, Hill Porter & Clark LLP
Sastri Satya
Wu David W.
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