Polycarboxylic acid cement dispersant and method for...

Details Polycarboxylic acid cement dispersant and method for... Polycarboxylic acid cement dispersant and method for...

2007-06-19

2007-06-19

Wood, Elizabeth D. (Department: 1755)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S318000, C526S319000, C524S556000, C106S725000, C106S808000, C106S809000, C106S823000

Reexamination Certificate

active

10820798

ABSTRACT:
A polycarboxylic acid cement dispersant that can exhibit high dispersing ability and allow deforming in early stages in the case of producing concrete products, whereby the turnover of a formwork is increased so as to improve productivity, and the method of producing such as concrete product are provided. The polycarboxylic acid cement dispersant which provides a cement composition having a penetration resistance value exponent of 55 MPa or more and a slump retention exponent of 80% or more, and the method of producing a concrete product which makes use of a copolymer derived by using monomer components comprising the monomer (A) as polyalkylene glycol unsaturated monomer, the monomer (B) as unsaturated carboxylic monomer, and the monomer (C) as sulfonic acid group-containing monomer.

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Translation of JP 08-012396, Jan. 16, 1996.

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