Curable compositions consisting of silanes with three hydrolysable groups

US8076444B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

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

Key dates

• Filing date: Mar 26, 2010
• Grant date: Dec 13, 2011
• Expiry date: Mar 26, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2200/0657
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to silane cross-linking curable compositions, comprising a polymer P with at least two terminal groups of the following formulae (I) and (II) -Am-K1—SiXYZ (I), -Am-K2—SiXYZ (II), and/or two polymers P1 and P2, the polymer P1 having terminal groups of the following formula (I) -Am-K1—SiXYZ (I), and the polymer P2 having terminal groups of the following formula (II) -Am-K2—SiXYZ (II). In said formulae, A represents a bivalent binding group K1 and K2 independently of one another represent a bivalent aliphatic hydrocarbon group with a main chain of between 1 and 6 carbon atoms, the hydrocarbon groups K1, K2 being different, X, Y and Z independently of one another represent a hydroxy group of a hydrolysable group and m stands for 0 or 1.