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.:
Date of Patent:
Aug. 08, 2006
Filed:
Oct. 14, 2003
Ichiro Ogura, Ichihara, JP;
Nobuya Nakamura, Ichihara, JP;
Tomoyuki Imada, Ichihara, JP;
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Abstract
In the technical field where a difunctional epoxy resin having increased molecular weight is used to impart flexibility or improving dielectric properties, the present invention has remarkably improved moisture resistance and water resistance when used to produce a cured epoxy resin article. The epoxy resin composition comprises a difunctional epoxy resin (A) having a structure wherein an aromatic hydrocarbon group (a1) having a bonding site in an aromatic nucleus and a hydrocarbon group (a2) having an ether bond or the other hydrocarbon group (a3) are bonded via an acetal bond (a4), and also has a structure wherein a glycidyloxy group is bonded to the aromatic hydrocarbon group (a1); and a curing agent (B) as essential component.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile