Multi-functional admixtures for concrete

Details Multi-functional admixtures for concrete Multi-functional admixtures for concrete

2004-02-24

2009-10-13

Cheung, William K (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S005000, C524S008000, C524S388000, C524S396000, C524S127000, C106S823000

Reexamination Certificate

active

07601770

ABSTRACT:
A multi-functional admixture for concrete, having improved fluidity for providing hardened materials with improved early strength, smaller shrinkage rate, improved resistance against freezing and thawing action and slower carbonation speed, contains a specified kind of graft copolymer and/or its salt, a specified kind of (poly)alkyleneglycol monoalkyl ether and a specified kind of organic phosphate at specified ratios.

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patent: WO 99/15475 (1999-04-01), None
WO 99/15475, Derwent disclosure (Apr. 1, 1999).

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