Curable compositions composed of silanes with two hydrolyzable groups

US8563675B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Lars Zander · Rommerskirchen, DE
• Thomas Bachon · Düsseldorf, DE
• Christiane Kunze
• Johann Klein · Goldkronach, DE
• Daniela Braun · Shanghai, CN
• Sara Gonzalez · Goldkronach, DE
• Ulrich Neuhausen · Kahl am Main, DE

Key dates

• Filing date: Feb 8, 2010
• Grant date: Oct 22, 2013
• Expiry date: Sep 10, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/336
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to silane-crosslinking curable compositions encompassing a polymer P having at least two terminal groups of the following formulas (I) and (II) -Am-K1—SiR1XY (I), -Am-K2—SiR2XY (II), and/or two polymers P1 and P2, polymer P1 having terminal groups of the following formula (I) -Am-K1—SiR1XY (I), and polymer P2 having terminal groups of the following formula (II) -Am-K2—SiR2XY (II), in which A denotes a divalent bonding group, K1, K2, mutually independently, denote a divalent aliphatic hydrocarbon group that has a main chain of 1 to 6 carbon atoms, the hydrocarbon groups K1, K2 being different, X, Y mutually independently denote a hydroxy group or a hydrolyzable group, R1, R2 mutually independently denote a hydrocarbon residue having 1 to 20 carbon atoms, and m assumes the values 0 or 1.