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 7820740 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 26, 2010

Filed:

Oct. 01, 2007
Applicants:

Kazunori Kondo, Kamisu, JP;

Shigehiro Hoshida, Narita, JP;

Tadashi Amano, Kamisu, JP;

Inventors:

Kazunori Kondo, Kamisu, JP;

Shigehiro Hoshida, Narita, JP;

Tadashi Amano, Kamisu, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 3/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a halogen-free, flame retardant adhesive composition that exhibits excellent anti-migration properties, not only within single layer structures, but also within multilayer structures of much higher density such as copper-clad laminates. The flame retardant adhesive composition according to the present invention comprises: (A) a halogen-free epoxy resin, (B) a carboxyl group-containing acrylic resin and/or a carboxyl group-containing acrylonitrile-butadiene rubber, (C) a curing agent, (E) specific phosphinate and/or diphosphonate compounds, and (F) an ion scavenger and/or a heavy metal deactivator.


Find Patent Forward Citations

Kondo, Kazunori. (2010). Flame retardant adhesive composition, and adhesive sheet, coverlay film and flexible copper-clad laminate using same (U.S. Patent No. 7820740). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7820740

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