Water-soluble formaldehyde-free polycondensation products based

Details Water-soluble formaldehyde-free polycondensation products based Water-soluble formaldehyde-free polycondensation products based

1997-07-09

1999-04-06

Hampton-Hightower, P.

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

Synthetic resins

From aldehyde or derivative thereof as reactant

528229, 528232, 528258, 528259, 528265, 528328, 524593, 524597, C08G 1230

Patent

active

058919830

ABSTRACT:
Water-soluble formaldehyde-free polycondensation products based on amino-s-triazines with at least two amino groups and glyoxylic acid, which contain as further component at least one amino compound and where the molar ratio of amino-s-triazine to glyoxylic acid to amino compound is 1:0.5 to 6.0:0.1 to 2.0. These polycondensation products are excellently suited as additives for aqueous suspensions of inorganic binders, especially cement, lime and gypsum. Building material mixtures which contain these polycondensation products remain workable for a considerably longer time and, in spite of this, also set more quickly.

REFERENCES:
patent: 4160754 (1979-07-01), Schapel et al.
patent: 4225481 (1980-09-01), Wagner
patent: 4282135 (1981-08-01), Wagner

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