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. 06, 1976
Filed:
Jan. 27, 1975
Gerard Emile Coispeau, Soisy-sur-Montmorency, FR;
Produits Chimiques Ugine Kuhlmann, Paris, FR;
Abstract
Dyestuffs of the formula: ##SPC1## In which R.sub.1 represents a hydrogen atom or an alkyl or aryl group, R.sub.2 represents an alkyl group, R.sub.3 represents an aryl group when R.sub.1 is an alkyl group and an alkyl group when R.sub.1 is a hydrogen atom or an aryl group, R.sub.4 represents a hydrogen atom or an alkyl group, R.sub.5 represents an alkyl, hydroxyalkyl, cyanalkyl, acylaminoalkyl or alkanedioyliminoalkyl group, Y represents a hydrogen atom or an alkyl, alkoxy or acylamino group, Z represents a hydrogen atom or an alkoxy group and X represents a monovalent anion; process for the preparation of such dyestuffs which comprises treating a dyestuff of the formula: ##SPC2## In which R.sub.1, R.sub.4, R.sub.5, Y and Z have the same significance as above, R'.sub.3 represents a hydrogen atom if R.sub.1 is a hydrogen atom or an aryl group and R'.sub.3 represents an aryl atom if R.sub.1 is an alkyl group, with an alkylating agent; and the use of such dyestuffs for the colouration of fibres based on polymers or copolymers of acrylonitrile or fibres based on polyesters or polyamides modified by acid groups.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile