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. 20, 1978
Filed:
Apr. 04, 1977
Applicant:
Inventor:
Thomas J Pacansky, Penfield, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ;
U.S. Cl.
CPC ...
427197 ; 96 33 ; 101465 ; 101467 ; 427 14 ; 4273 / ; 4273 / ; 4273 / ; 427375 ; 427379 ; 427387 ; 4273 / ; 4273 / ;
Abstract
A process for preparing a waterless printing master having a minimum background ink reflection density comprises coating a master substrate with an ink releasing block copolymer comprising elastomeric ink releasing siloxane blocks and isothermally crystallizable thermoplastic organic blocks. Thereafter, the thermoplastic blocks are isothermally crystallized and the siloxane blocks are preferably cross-linked. The printing master is imaged by depositing ink accepting particulate imaging material on the copolymer coating and heating and cooling the thermoplastic blocks to bond the particulate imaging material thereto.