Patent · US Expired

Early-rain-resistant joint-sealing compounds

US5118731A · kind A · utility

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19Claims

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Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Helmut Loth · Essen, DE
Klaus Helpenstein · Rheydt, DE
Tore Podola · Monheim, DE
Bernhard Knop · Monheim, DE

Key dates

Filing date	Oct 19, 1990
Grant date	Jun 2, 1992
Priority date	—
Expiry date	Oct 19, 2010

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2200/0685
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Early-rain-resistant joint-sealing compounds containing; PA1 (a) aqueous polymer dispersions (I), PA1 (b) nonionic cellulose ethers (II) selected from the group consisting of hydroxyethyl, hydroxyethyl-methyl, hydroxypropyl-methyl and hydroxypropyl cellulose, PA1 (c) optionally typical additives, such as fillers, pigments, plasticizers, extenders, thickeners, foam inhibitors, dispersion aids, pH regulators, preservatives and anti-aging agents, and PA1 (d) at least one organic liquid component selected from the group of typical additives, which can be produced by thorough mixing of (I) with the other constituents. To be able to introduce (II) in quantities above the solubility limit, the joint-sealing compounds are characterized in that (II) is added and mixed in retarded and/or non-retarded form in suspension in the liquid organic component.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.