HYBRID SEALANT COMPOSITION - ILLINOIS TOOL WORKS

Title:

HYBRID SEALANT COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2012/174500

Kind Code:

A3

Abstract:

An acrylic-polyurethane hybrid sealant composition is provided with desirable physical and mechanical properties such as superior adhesion, tensile strength, rheology and bond strength. In particular, the sealant composition of the invention is formulated with isocyanate modified acrylic polymer The composition includes an acrylic pre-polymer, an isocyante functional monomer, a triacrylate as a cross-linker, and a catalyst. A process for preparing the composition is also provided. The hybrid sealant composition is well suited for sealing and bonding requirements in fabrication of articles such as window glazing, back bedding, construction, aerospace and appliances industries. A hybrid sealant composition is provided that develops adequate adhesion and bond strength equivalent to commercially available sealants when used in sealing and bonding applications and is readily formulated to be self- leveling. Articles so fabricated using the hybrid sealant composition are also provided.

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Inventors:

KULKARNI MONA (IN)
CHITNAVIS NAGESH (IN)
DESHPANDE SUBODH (IN)
SAWHAWNEH NADER (US)

Application Number:

PCT/US2012/042842

Publication Date:

April 11, 2013

Filing Date:

June 16, 2012

Export Citation:

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Assignee:

ILLINOIS TOOL WORKS (US)
KULKARNI MONA (IN)
CHITNAVIS NAGESH (IN)
DESHPANDE SUBODH (IN)
SAWHAWNEH NADER (US)

International Classes:

C09K3/12; C08L75/06

Domestic Patent References:

WO2009049173A1

2009-04-16

Foreign References:

US4778831A	1988-10-18
US7507443B2	2009-03-24
US20070043198A1	2007-02-22

Other References: