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:
Jun. 12, 2001
Filed:
Jun. 01, 1998
Toyo Boseki Kabushiki Kaisha, Osaka-fu, JP;
Abstract
A photosensitive resin composition for flexographic printing comprising dispersed particles of (1) a core phase mainly composed of a non-crosslinkable hydrophobic polymer (A) having a glass transition temperature at 5° C. or lower, and (2) a shell phase covering the core phase which is mainly composed of a hydrophilic polymer; and (3) a matrix phase mainly composed of a mixture of a hydrophobic polymer (B) which is immiscible with the hydrophobic polymer (A) and a non gaseous ethylenic unsaturated compound. The difference between refractive index of said hydrophobic polymer (A) of the core phase (1) and that of the mixture of said hydrophobic polymer (B) and said ethylenic unsaturated compound of the matrix phase (3) is 0.010 or less, thereby decreasing light scattering in the resin. The photosensitive resin composition can be developed with an aqueous developer and has wide light exposure latitude, improved printing reproducibility and improved aqueous ink resistance.