Ultrarapid hardening cement composition and dispersant for...

Details Ultrarapid hardening cement composition and dispersant for... Ultrarapid hardening cement composition and dispersant for...

2006-08-30

2011-12-13

Seidleck, James J (Department: 1765)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S002000, C524S004000, C524S376000, C524S377000, C524S556000, C526S317100, C526S318000, C526S319000

Reexamination Certificate

active

08076396

ABSTRACT:
To provide an ultrarapid hardening cement composition with high strength, the composition having: excellent fluidity; excellent usable time; and excellent initial strength under low temperature atmosphere as well as under general temperature atmosphere, and improving strength and durability of a hardening product of the composition. An ultrarapid cement hardening composition comprising: an ultrarapid hardening cement (A) comprising a calcium aluminate; and a cement dispersant (B), wherein the cement dispersant (B) comprises a copolymer having: a repeating unit derived from a monomer represented by the following formula (1) and formula (2) as defined in the specification.

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Japanese Office Action dated Mar. 29, 2011 for counterpart Japanese Application No. 2006-232033.

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