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. 16, 2014
Filed:
Mar. 26, 2007
Applicants:
Gerng-horng Lin, Kaohsiung, TW;
Hui-kuan Mao, Kaohsiung, TW;
Ming-hsiung Yang, Kaohsiung, TW;
Feng-chih Tsai, Kaohsiung, TW;
Inventors:
Gerng-Horng Lin, Kaohsiung, TW;
Hui-Kuan Mao, Kaohsiung, TW;
Ming-Hsiung Yang, Kaohsiung, TW;
Feng-Chih Tsai, Kaohsiung, TW;
Assignee:
Eternal Chemical Co., Ltd., , TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/67 (2006.01); C08G 18/73 (2006.01); C09D 175/16 (2006.01); C08G 18/32 (2006.01);
U.S. Cl.
CPC ...
C08G 18/73 (2013.01); C09D 175/16 (2013.01); C08G 18/3215 (2013.01); C08G 18/672 (2013.01);
Abstract
The present invention provides a polymer having the structure of formula (I) wherein n, R, R, R, R, R, R, a, b and c are as defined in the specification. The present invention also provides a negative-acting photoimageable composition comprising the above-mentioned polymer of formula (I), which is suitable for the fabrication of printed circuit boards.