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:
Jul. 20, 1976
Filed:
Jun. 04, 1974
Mordechai Sokolovsky, Tel Aviv, IL;
Amihay Freeman, Rishon Lezion, IL;
Leon Goldstein, Rehovoth, IL;
Other;
Abstract
Novel substituted polyamides of the general formula ##EQU1## wherein A and B, which may be identical or different, are the hydrocarbon backbone groups of the formula --(CH.sub.2).sub.n --, where n is an integer, R.sub.2 and R.sub.3 are the residues of an aldehyde R.sub.2 --CHO or of an isocyanide R.sub.3 --N.tbd.C, where R.sub.2 and R.sub.3 are aliphatic, aromatic or heterocyclic residues of the respective aldehyde or isocyanide, or where R.sub.3 is a chromophoric moiety. R.sub.2 and R.sub.3 can be substituted, and amongst the possible substituents there may be R.sub.3 designating --(CH.sub.2).sub.n --NHCO--CHR.sub.2 --N(CO)(R.sub.4)--X, where R.sub.4 is the residue of a monocarboxylic or dicarboxylic acid and X is the lysyl residue of a protein, which may be biologically active, or the residue of a low-molecular weight compound containing a primary amine moiety. Preferred polyamides are various types of nylons. Amongst proteins chemically bound to the polyamide there may be mentioned enzymes, antibodies and peptide hormones. When R.sub.3 is a chromophoric moiety, the product is a chemically dyed polyamide. The invention relates also to a process for the production of such novel substituted polyamides.