Abstract:
PROBLEM TO BE SOLVED: To provide a building material having the compressive strength and bending tensile strength improved by adding a suitable auxiliary substance. SOLUTION: This is the mixture of the hydraulic building material and minute particles of a solid hydrogel forming polymer which contain ≤2 mass% particles having the particle size exceeding 200 μm. A crosslinked polymer having an acid radical is used particularly as the solid hydrogel forming polymer. COPYRIGHT: (C)2004,JPO
Abstract:
The invention relates to a water-absorbing agent in particulate form, comprising particles of a water-absorbing polymer and between 0.1 and 4 wt. %, (relative to the particulate polymer), of a fine-particle natural fibre.
Abstract:
The use of a foam film of thickness 0.2-10 mm with more than 80% open cells and mean cell size 10-1500 micron based on styrene polymers for hygiene articles, where the foam film is obtained by extrusion of a polymer melt which optionally contains a rubber modified styrene polymer as polymer together with 1-12 wt.% of a volatile propellant comprising a mixture of CO2 and water in wt. ratio 80:20 to 20:80 is new.
Abstract:
A process for binding particulate water-absorbing acid-functional polymers to a carrier material by means of compounds comprising amino groups, which comprises contacting the carrier material with particulate water-absorbing acid-functional polymers whose acid groups have been 0 to not more than 55 mol % neutralized with alkali metal and/or ammonium bases and then raising the degree of neutralization of these polymers to not less than 60 mol % by treatment with amino-containing compounds. The use of compounds comprising amino groups and selected from the group of the compounds consisting of the alkanolamines and compounds which contain ethyleneimine and/or vinylamine units to neutralize and bind particulate water-absorbing acid-functional polymers neutralized 0 to not more than 55 mol % with alkali metal and/or ammonium bases to a carrier material.
Abstract:
A process for binding particulate water-absorbing acid-functional polymers to a carrier material by means of compounds comprising amino groups, which comprises contacting the carrier material with particulate water-absorbing acid-functional polymers whose acid groups have been 0 to not more than 55 mol % neutralized with alkali metal and/or ammonium bases and then raising the degree of neutralization of these polymers to not less than 60 mol % by treatment with amino-containing compounds. The use of compounds comprising amino groups and selected from the group of the compounds consisting of the alkanolamines and compounds which contain ethyleneimine and/or vinylamine units to neutralize and bind particulate water-absorbing acid-functional polymers neutralized 0 to not more than 55 mol % with alkali metal and/or ammonium bases to a carrier material.
Abstract:
Procedimiento para la unión de polímeros en forma de partículas, absorbentes de agua, que contienen grupos ácidos, a un material soporte con ayuda de compuestos que presentan grupos amino, caracterizado porque el material soporte se pone en contacto con polímeros en forma de partículas, absorbentes de agua, que contienen grupos ácidos, cuyos grupos ácidos están neutralizados en un 0 a un máximo de un 55 % en moles, con bases metálicas alcalinas y/o amónicas, y después se aumenta el grado de neutralizado de estos polímeros a al menos un 60 % en moles, mediante el tratamiento con compuestos que contienen grupos amino.
Abstract:
Mixtures consist of (A) solid, finely-divided, hydrogel-forming polymers and (B) hydraulically-setting construction materials, with no more than 2 wt.% of (A) being of particles of size above 200 microns. An Independent claim is given for production of the composition by mixing (A) with (B) powder, prior to making up with water.
Abstract:
A process for binding particulate water-absorbing acid-functional polymers to a carrier material by means of compounds comprising amino groups, which comprises contacting the carrier material with particulate water-absorbing acid-functional polymers whose acid groups have been 0 to not more than 55 mol % neutralized with alkali metal and/or ammonium bases and then raising the degree of neutralization of these polymers to not less than 60 mol % by treatment with amino-containing compounds. The use of compounds comprising amino groups and selected from the group of the compounds consisting of the alkanolamines and compounds which contain ethyleneimine and/or vinylamine units to neutralize and bind particulate water-absorbing acid-functional polymers neutralized 0 to not more than 55 mol % with alkali metal and/or ammonium bases to a carrier material.
Abstract:
A process for binding particulate water-absorbing acid-functional polymers to a carrier material by means of compounds comprising amino groups, which comprises contacting the carrier material with particulate water-absorbing acid-functional polymers whose acid groups have been 0 to not more than 55 mol % neutralized with alkali metal and/or ammonium bases and then raising the degree of neutralization of these polymers to not less than 60 mol % by treatment with amino-containing compounds. The use of compounds comprising amino groups and selected from the group of the compounds consisting of the alkanolamines and compounds which contain ethyleneimine and/or vinylamine units to neutralize and bind particulate water-absorbing acid-functional polymers neutralized 0 to not more than 55 mol % with alkali metal and/or ammonium bases to a carrier material.
Abstract:
A process for binding particulate water-absorbing acid-functional polymers to a carrier material by means of compounds comprising amino groups, which comprises contacting the carrier material with particulate water-absorbing acid-functional polymers whose acid groups have been 0 to not more than 55 mol % neutralized with alkali metal and/or ammonium bases and then raising the degree of neutralization of these polymers to not less than 60 mol % by treatment with amino-containing compounds. The use of compounds comprising amino groups and selected from the group of the compounds consisting of the alkanolamines and compounds which contain ethyleneimine and/or vinylamine units to neutralize and bind particulate water-absorbing acid-functional polymers neutralized 0 to not more than 55 mol % with alkali metal and/or ammonium bases to a carrier material.