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. 29, 1976
Filed:
Dec. 20, 1972
Frederick Weldon Meadus, Ottawa, CA;
Bryan David Sparks, Ottawa, CA;
Ira Edwin Puddington, Ottawa, CA;
Canadian Patents and Development Limited, Ottawa, CA;
Abstract
A composition for forming pressure- and heat-sensitive coating comprising finely divided organic material of particle size from about 0.001 to 15 micro meters in diameter having a melting point above about 55.degree.C, the particles being of substantially uniform color and subject to plastic flow by heat or pressure, a liquid carrier in sufficient amount to give a fluid system and normally including a binder dispersed in the carrier. The composition optionally includes an oil-soluble dye or a pigment uniformally dispersed in said particles. A method for preparing the compositions which comprises heating to dissolve in a suitable solvent as the solid organic material, cooling the resulting solution to form a paste of the desired particles, normally incorporating a binder, and optionally incorporating coloring material into the organic material.