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, 1982
Filed:
Nov. 20, 1980
Nippon Oil Company, Ltd., Tokyo, JP;
Abstract
According to this invention, there is provided an anti-migration agent for dyeing comprising a water-soluble, neutral polymer salt of a polymer anion and at least one cation, said polymer anion being a copolymer or a partially esterified matter thereof, said copolymer consisting of at least one monomer selected from the group consisting of C.sub.4 of C.sub.7 conjugated diene and isobutylene and at least one member selected from the group consisting of maleic acid, maleic anhydride and derivatives thereof, and said cation being selected from the group consisting of Na.sup.+, K.sup.+, Li.sup.+ and ammonium ions represented by the general formula R.sub.1 R.sub.2 R.sub.3 R.sub.4 N.sup.+ wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are selected from the group consisting of hydrogen, C.sub.1 to C.sub.6 alkyl, cycloalkyl and phenyl.