The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2013
Filed:
Oct. 18, 2010
Helene Boudet, Duesseldorf, DE;
Andreas Bolte, Duesseldorf, DE;
Thomas Bachon, Duesseldorf, DE;
Lars Zander, Rommerskirchen, DE;
Christiane Kunze, Cologne, DE;
Johann Klein, Duesseldorf, DE;
Nicole Ditges, Soligen, DE;
Helene Boudet, Duesseldorf, DE;
Andreas Bolte, Duesseldorf, DE;
Thomas Bachon, Duesseldorf, DE;
Lars Zander, Rommerskirchen, DE;
Christiane Kunze, Cologne, DE;
Johann Klein, Duesseldorf, DE;
Nicole Ditges, Soligen, DE;
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
Silylated polyurethanes can be manufactured by reacting at least one polyol compound, having a molecular weight from 4000 to 20,000 dalton, with a diisocyanate, with a stoichiometric excess of the diisocyanate compound with respect to the polyol compound or compounds, with the result that a polyurethane prepolymer that is isocyanate-terminated is formed; and by subsequently reacting the polyurethane prepolymer with one or more OH-terminated silanes of formula (1) to yield a polyurethane having predominantly terminal alkoxysilyl groups. In formula (1), m is equal to 0, 1, or 2, Ris an alkyl residue having 1 to 4 carbon atoms, Ris an alkyl residue having 1 to 4 carbon atoms, Ris a divalent organic residue having 1 to 12 atoms, selected from C, N, S, and/or O, in the chain, but by preference exclusively carbon atoms, Ris a hydrogen atom or an alkyl residue having 1 to 10 carbon atoms, and R is a difunctional organic group, preferably a linear or branched alkyl group having 1 to 6 carbon atoms. The silylated polyurethanes are suitable for use in a preparation as an adhesive, sealant, or coating agent.