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:
Apr. 24, 1990
Filed:
Jun. 06, 1988
Roger J Davey, Hoole Chester, GB;
Duncan H MacKeron, Frodsham, GB;
Imperial Chemical Industrices PLC, London, GB;
Abstract
A thermal transfer dyesheet, comprising a supportive base material coated with a composition of a thermally transferable dye dispersed uniformly throughout a polymeric binder matrix, also contains in its coating composition a crystallization inhibitor having a molecular structure consisting essentially of a polymer backbone to which are chemically bonded a multiplicity of groups having substantially the same shape, charge distribution and hydrogen bonding pattern as the dye or substantial portion thereof. Provision of such crystallization inhibitors serves to reduce the problems of roughness on the dyesheet surface, and the dirty surfaces which both have tended to occur in previous dyesheets as the dye molecules migrate to the surface and combine to form crystals there.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile