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:
Jul. 13, 2004
Filed:
Nov. 05, 2001
Applicant:
Inventors:
Assignee:
MBT Holding AG, Trostberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 2/424 ; C04B 2/428 ; C04B 2/432 ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
C04B 2/424 ; C04B 2/428 ; C04B 2/432 ; C08F / ; C08F / ;
Abstract
A cement additive comprising a polycarboxylic acid type copolymer and/or a salt thereof and a polyalkylene glycol derivative, wherein said polycarboxylic acid type copolymer contains one or more species of copolymers composed of at least an unsaturated polyalkylene glycol type monomer and an unsaturated mono- or dicarboxylic acid type monomer as their monomer components. Concretes in which the additive is used have excellent flow, without significant retarding effect, and a low air entrainment. When used with concrete for steam curing it allows earlier removal of form work.