CURABLE COMPOSITIONS CONTAINING SILYLATED POLYETHER BLOCK POLYMER-BASED POLYURETHANES

Title:

CURABLE COMPOSITIONS CONTAINING SILYLATED POLYETHER BLOCK POLYMER-BASED POLYURETHANES

Document Type and Number:

WIPO Patent Application WO/2009/130297

Kind Code:

A3

Abstract:

The invention relates to a silylated polyurethane which is produced by reaction of at least one polyether compound having an OH number between 3 and 20 mg KOH/g (DIN 53783) and consisting of at least two polyoxyalkylene blocks A and B, wherein the number of carbon atoms in the alkylene units of blocks A and B differs by at least 1, with one or more isocyanate silanes of formula (I): OCN-R-Si-(R1)m(-OR2)3-m wherein m is 0, 1 or 2, every R2 represents an alkyl group with 1 to 4 carbon atoms, every R1 represents an alkyl group with 1 to 4 carbon atoms and R represents a difunctional organic group, to cap the hydroxyl groups of the prepolymer with the isocyanate silane, thereby producing a silylated polyurethane which has alkoxysilyl groups as the reactive end groups. The described silylated polyurethanes are suitable for producing adhesive, sealing or coating agent preparations that have good mechanical properties.

Inventors:

BACHON THOMAS (DE)
ZANDER LARS (DE)
GONZALEZ SARA (DE)
KUNZE CHRISTIANE (DE)
KLEIN JOHANN (DE)
BRAUN DANIELA (CN)

Application Number:

PCT/EP2009/054940

Publication Date:

January 06, 2011

Filing Date:

April 24, 2009

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HENKEL AG & CO KGAA (DE)
BACHON THOMAS (DE)
ZANDER LARS (DE)
GONZALEZ SARA (DE)
KUNZE CHRISTIANE (DE)
KLEIN JOHANN (DE)
BRAUN DANIELA (CN)

International Classes:

C08G18/48; C08G18/71; C09J175/04

Domestic Patent References:

WO2002012364A2

2002-02-14

Foreign References:

EP0372561A2	1990-06-13
EP0931800A1	1999-07-28
DE102004018548A1	2005-11-10
US3487115A	1969-12-30
EP1803757A1	2007-07-04

Other References: