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. 10, 2004
Filed:
Dec. 11, 2001
Sachio Murai, Aichi, JP;
Naoki Uchida, Nishio, JP;
Takehiro Shimizu, Gamagori, JP;
Tomonori Kubo, Gamagori, JP;
Satoshi Yamada, Okazaki, JP;
Itoh Optical Industrial Co., Ltd., Aichi, JP;
Abstract
An optical element in which a hard coat layer is formed on an organic glass base material surface via a primer layer. For a primer composition forming a primer layer, whole or the main body of the primer layer formation polymer is made as being ester based TPE. Moreover, a hard coat composition forming a hard coat layer is consisted of a hydrolysate of alkoxysilane in which trialkoxysilane containing monoexpoxy organic group is the main body as a matrix formation ingredient, and the titanium based metal oxide complex particle as being an optical interference control agent, the foregoing titanium based metal oxide complex particle is consisted of T O as the main body, SiO as a major sub-ingredient, and further, ZrO and K O as a trace sub-ingredient. An optical element of the present invention is capable of suppressing optical interference even if it is a high refractive index base material and the stability of coated film portion is also excellent as well as has a variety of properties comparable to the conventional optical parts.