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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.:

US 9346983 B1

PDFFull Text
Date of Patent:
May. 24, 2016

Filed:

Mar. 22, 2013

Flame retardant structural epoxy resin adhesives and process for bonding metal members

Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Glenn G. Eagle, Bloomfield Hills, MI (US);

Andreas Lutz, Galgenen, CH;

Gary L. Jialanella, Oxford, MI (US);

Assignee:

Dow Global Technologies LLC, Midland, MI (US);

Attorney:

Hong J. Xu

Primary Examiner:

Robert Sellers

Int. Cl.
CPC ...
C08K 3/22 (2006.01); C08K 3/38 (2006.01); C08K 5/3492 (2006.01); C09J 5/06 (2006.01); C09J 163/00 (2006.01); C09J 163/02 (2006.01); C08K 5/00 (2006.01); C08K 5/3432 (2006.01); B23K 11/16 (2006.01); B23K 11/34 (2006.01); B23K 31/02 (2006.01); B32B 37/12 (2006.01); C08K 13/02 (2006.01); C08K 3/00 (2006.01);
U.S. Cl.
CPC ...
C09J 163/00 (2013.01); B23K 11/16 (2013.01); B23K 11/34 (2013.01); B23K 31/02 (2013.01); B32B 37/1207 (2013.01); C08K 3/0058 (2013.01); C08K 3/22 (2013.01); C08K 3/38 (2013.01); C08K 5/0066 (2013.01); C08K 5/3432 (2013.01); C08K 5/34922 (2013.01); C08K 13/02 (2013.01); C09J 5/06 (2013.01); B32B 2037/1253 (2013.01); B32B 2311/30 (2013.01); C08K 2003/2227 (2013.01); C08K 2003/387 (2013.01);
Abstract

A heat-curable structural adhesive includes at least one non-rubber-modified epoxy resin; an optional rubber or toughener, one or more epoxy curing agents, one or more epoxy curing catalysts; and a flame retardant mixture that includes (i) alumina trihydrate, (ii) zinc borate and (iii) melamine or a melamine derivative. The structural adhesive is useful for bonding metals to other materials or metals to other metals. The structural adhesive strongly resists ignition when welding is performed in the presence of the uncured material, and does not interfere significantly with weld performance.

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