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:
Nov. 30, 1993
Filed:
Dec. 04, 1991
Yaacov Almog, Rehovot, IL;
Spectrum Sciences B.V., Wassenaar, NL;
Abstract
The invention relates to a homogeneous liquid composition which comprises: (1) liquid hydrocarbon compatible with liquid toners for electrostatic imaging, (2) at least one charge director, and (3) at least one stabilizing component in an amount effective to stabilize the electrical properties of said at least one charge director, said component being selected from piperidinemethanol and polyoxyalkylene ethers of formula R(O--A).sub.n OH, wherein R is alkyl or alkenyl containing 10-20 carbon atoms, A is C.sub.2-3 -alkylene and n is 2-24; and to liquid toners characterized by the presence of at least one charge director and at least one stabilizing component therefor as defined in (3), above.