Nonaqueous polyisocyanate formulation

US5387367A · kind A · utility

Assignee

• BASF SE

Inventors

• Karl Haeberle · Speyer, DE
• Lothar Maempel · Zeven, DE
• Ulrich Filges · Schifferstadt, DE

Key dates

• Filing date: Mar 7, 1994
• Grant date: Feb 7, 1995
• Expiry date: Mar 7, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2170/80
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Nonaqueous polyisocyanate formulation containing PA1 a) one or more aliphatic polyisocyanates having a mean NCO functionality of from 2.5 to 3.5 and PA1 b) an amount, which ensures that the polyisocyanate is dispersible, of a reaction product of a diisocyanate selected from the group consisting of tetramethylene diisocyanate, hexamethylene diisocyanate, dodecamethylene diisocyanate, 1,4-diisocyanatocyclohexane, 4,4'-di-(isocyanatocyclohexyl)-methane, diisocyanatotrimethylhexane, diisocyanatotetramethylhexane, 1-isocyanato-3,3,5-trimethyl-5-(isocyanatomethyl)-cyclohexane, toluylene 2,4- and 2,6-diisocyanate, tetramethylxylylene diisocyanate, p-xylylene diisocyanate, 2,4'- and 4,4'-diisocyanatodiphenylmethane and a mixture of two or more of these diisocyanates with a monohydric or polyhydric polyalkylene ether alcohol where the alkylene groups are of 2 to 4 carbon atoms and which contains a polyether chain having 8 or more ethylene oxide units, are prepared and are used in aqueous coating materials and in adhesive dispersions.