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. 03, 2018
Filed:
Dec. 01, 2016
Dow Global Technologies Llc, Midland, MI (US);
Rohm and Haas Company, Philadelphia, PA (US);
Brian R. Einsla, Collegeville, PA (US);
Valeriy V. Ginzburg, Midland, MI (US);
Lanfang Li, Somerset, NJ (US);
John A. Roper, III, Midland, MI (US);
Rebecca Smith, Ambler, PA (US);
Jian Yang, Lake Jackson, TX (US);
Rohm and Haas Company, Philadelphia, PA (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The present invention relates to a thermosensitive recording material comprising paper, an undercoat layer disposed on the paper, and a thermosensitive recording layer disposed on the undercoat layer, wherein the undercoat layer comprises a binder and first and second hollow sphere polymer particles, wherein the first hollow sphere polymer particles have a diameter in the range of from 1.2 μm to 1.8 μm; the second hollow sphere polymer particles have a diameter in the range of from 0.25 μm to 1.0 μm; the number ratio of the second to the first hollow sphere polymer particles is in the range of from 1:1 to 20:1; the diameter of the second hollow sphere polymer particles is in the range of from 15 to 65% of the diameter of the first hollow sphere polymer particles; the dry bulk density of the first hollow sphere polymer particles is in the range of 0.25 to 0.5 g/mL; and the dry bulk density of the second hollow sphere polymer particles is in the range of 0.30 to 0.90 g/mL.