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:
Jan. 28, 2020
Filed:
Oct. 23, 2017
Chang Chun Plastics Co., Ltd, Taipei, TW;
Gai-Chi Chen, Taipei, TW;
Yun-Chung Wu, Taipei, TW;
An-Pang Tu, Taipei, TW;
Kuen-Yuan Hwang, Taipei, TW;
CHANG CHUN PLASTICS CO., LTD., Taipei, TW;
Abstract
The present invention provides a photosensitive resin composition, comprising: (a) photo-polymerizable unsaturated compound, (b) hydroxyurethane compound, and (c) photoinitiator. The photosensitive resin composition can be used as photoresist coating for dry film photoresist to manufacture the electronic components, such as print circuit board and so on. Further, the (b) hydroxyurethane compound having [CC]/[NH] between 0.5 and 0.9, which increases the resolution, adhesion, and stripping ability of photosensitive resin composition for dry film photoresist, and improves the effectiveness and the quality of dry film photoresist for manufacturing printed circuit board and other electric component.