Early-rain-resistant joint-sealing compounds

US5118732A · kind A · utility

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
• Expiry date: Oct 19, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2200/0685
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

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, and PA1 (c) optionally typical additives, such as fillers, pigments, plasticizers, extenders, thickeners, foam inhibitors, dispersion aids, pH regulators, preservatives and anti-aging agents, 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 suspended in retarded form in small quantities of water and is added and intermixed after suspension.