The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2014
Filed:
Mar. 31, 2011
Akira Ikeda, Sodegaura, JP;
Akira Suga, Sodegaura, JP;
Satoshi Kobayashi, Sodegaura, JP;
Toho Chemical Industry Co., Ltd., Tokyo, JP;
Abstract
A cement dispersant that includes a copolymer resulting from a reaction of components (A) to (C), where: (A) is an ester compound obtained by adding 0 to 10 moles of Calkylene oxide to 1 mole of at least one compound of Formula (1) RO-(AO)n-H (where R is a Calkyl group, A is a Calkylene group, and n is an integer of 0 to 7) and subjecting the resulting adduct to a reaction with an α,β-unsaturated carboxylic acid, in which the compound of Formula (1) contains not more than 5% by mass of the constituent compounds having n of 3 or less relative to the total mass of the compound of Formula (1); (B) is an α,β-unsaturated carboxylic acid or a salt thereof; and (C) is another copolymerizable monomer, where appropriate, or a salt thereof.