POLYCONDENSATION PRODUCT BASED ON AROMATIC OR HETEROAROMATIC COMPOUNDS, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF

Title:

POLYCONDENSATION PRODUCT BASED ON AROMATIC OR HETEROAROMATIC COMPOUNDS, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF

Document Type and Number:

WIPO Patent Application WO2006042709

Kind Code:

A8

Abstract:

Disclosed is a polycondensation product comprising A) an aromatic or heteroaromatic compound containing 5 to 10 C atoms or heteroatoms, said compound being provided with an average of 1 to 300 oxyethylene groups and/or oxypropylene groups per molecule which are linked to the aromatic or heteroaromatic compound via an O atom or N atom, and optionally B) an aromatic compound selected among the group comprising phenols, phenol ether, naphthols, naphthol ether, anilines, furfuryl alcohols, and/or an aminoplast former selected among the group comprising melamine (derivatives), urea (derivatives), and carboxylic acid amides, and C) an aldehyde selected among the group comprising formaldehyde, glyoxylic acid, and benzaldehyde or mixtures thereof, the benzaldehyde optionally containing acid groups in the form of COOM_a, SO₃M_a, and PO₃M_a, wherein M = H, akali metal or alkaline earth metal, ammonium, or organic amine radicals and a = 1/2, 1, or 2. Surprisingly, the inventive polycondensation product causes very good liquefaction of hydraulic binding agents, e.g. cement, resulting in substantially improved liquefaction of the construction material at a lower dose while pourability can be maintained over a longer period of time as opposed to naphthalene sulfonates or melamine sulfonates.

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Inventors:

WIELAND PHILIPP (DE)
KRAUS ALEXANDER (DE)
ALBRECHT GERHARD (DE)
BECHER KERSTIN (DE)
GRASSL HARALD (DE)

Application Number:

PCT/EP2005/011082

Publication Date:

June 29, 2006

Filing Date:

October 14, 2005

Export Citation:

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Assignee:

CONSTR RES & TECH GMBH (DE)
WIELAND PHILIPP (DE)
KRAUS ALEXANDER (DE)
ALBRECHT GERHARD (DE)
BECHER KERSTIN (DE)
GRASSL HARALD (DE)

International Classes:

C08G8/28; C04B24/30; C08G12/40; C08G65/48

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