Oligomeric dispersant

US6908955B2 · kind B2 · utility

Assignee

• CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

• Michael Porsch · Minneapolis, US
• Thomas M. Vickers, Jr. · Powell, US
• Rainer Packe-Wirth · Trostberg, DE
• Samy M. Shendy · Cuyahoga Falls, US
• Lynn E. Brower · Solon, US
• John Pickett · Kimpton, GB
• Frank Danko · Macedonia, US
• Runhai Lu · Vernon Hills, US

Key dates

• Filing date: Nov 8, 2002
• Grant date: Jun 21, 2005
• Expiry date: May 15, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2103/408
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A composition that is a reaction product of two or three moieties. The first moiety (A) is a nonpolymeric, multi-functional moiety or combination of mono- or multifunctional moieties that adsorbs onto a cementitious particle. The second required moiety (C) is a linear or branched water soluble, nonionic polymer that is capable of providing dispersing capability. A third moiety (B), if present, is a nonpolymeric moiety disposed between the first and second moiety, to connect the first and second moieties.