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:
Sep. 17, 2013
Filed:
Jul. 03, 2006
Tetsu Konishi, Kanagawa, JP;
Shinji Mitsumune, Kanagawa, JP;
Masayuki Takemoto, Yokohama, JP;
Takehito Ito, Tokyo, JP;
Hiroyuki Tagkagi, Yokohama, JP;
Rui Nimi, Munster, DE;
Tetsu Konishi, Kanagawa, JP;
Shinji Mitsumune, Kanagawa, JP;
Masayuki Takemoto, Yokohama, JP;
Takehito Ito, Tokyo, JP;
Hiroyuki Tagkagi, Yokohama, JP;
Rui Nimi, Munster, DE;
BASF Coatings Japan Ltd., , JP;
Abstract
Disclosed herein is a clear paint composition, comprising (A) an acrylic copolymer comprising from 35 to 50 wt % ε-caprolactone structural units, based on the resin solid fraction, and wherein the hydroxyl number is from 200 to 340 mgKOH/g and the weight average molecular weight is from 5,000 to 15,000 and (B) a non-yellowing type polyisocyanate compound, wherein the isocyanate group of the (B) component is included in a proportion of from 0.5 to 2 equivalents per 1 equivalent of hydroxyl group of the (A) component, wherein the Young's modulus of the hardened paint film obtained from said paint composition is not more than 1.5 Pa, wherein the molecular weight of intercrosslinking of the cured coating film (Mc) is not more than 350 g/mol, and wherein the glass transition temperature (Tg) of the hardened paint film is at least 65° C.