Patent GB-1082584-A (GB)
Title: Dyeable poly-ª‡-olefinic compositions
IPC: C07D249/08
Filed: 1966-02-11
Abstract: Compositions comprise a major proportion of a poly-a -olefin and minor proportions of (1) an aminotriazolic substance of formula <FORM:1082584/C3/1> where R and R1 are alkyl, aralkyl or alicyclic groups or of formula <FORM:1082584/C3/2> where R1 is a substituted or unsubstituted C1- 10 alkylene, cycloalkylene, phenylene naphthylene or divalent heterocyclic group or two or more of such groups bonded by ether, sulphone, ketone, secondary amide, imine or secondary sulphamide linking groups and n is not less than 2, and (2) calcium carbonate of particle size not more than 2 microns.  Specified polyolefins are polymers and copolymers of ethylene, propylene, 3 - methylbutene - 1, 4-methylpentene-1, isobutene and styrene, and mixtures thereof.  The compositions may also comprise stabilizers and brightening agents, and may be shaped into articles such as fibres, films and sheets which are readily dyed with anionic dyes. Examples describe compositions comprising calcium carbonate and (1) polypropylene and sebacic acid dihydrazide condensate; (2) polyethylene and sebacic acid dihydrazide condensate; (3) polypropylene and di-undecyl aminotriazole; (4) polypropylene, adipic acid dihydrazide/sebacic acid dihydrazide co-condensate, calcium stearate, 2-hydroxy-4-n-octoxybenzophenone, dilauryl thiodipropionate and 2,21-methylene-bis(4-methyl-6-t.-butylphenol); (5) polypropylene and diheptadecyl aminotriazole; (6) polypropylene and a block copolymer containing methylene aminotriazole and octamethylene amino triazole units; (7) polypropylene aluminium stearate and a block copolymer containing methylene aminotriazole and -NHCO(CH2)5- units; and (8) polypropylene and a block copolymer containing methylene aminotriazole and -NHCONH(CH2)4- units.ALSO:Articles which may be dyed with anionic dyes are made of compositions comprising a poly-a -olefin and minor proportions of (1) an amino tri-azolic substance of formula <FORM:1082584/D1-D2/1> where R and R1 are alkyl, aralkyl or alicyclic groups or of formula <FORM:1082584/D1-D2/2> where R1 is a substituted or unsubstituted C1-10 alkylene, cycloalkylene, phenylene, naphthylene or divalent heterocyclic group or two or more of such groups bonded by ether, sulphone, ketone, secondary amide, imine or secondary sulphamide linking groups, and (2) calcium carbonate of particle size not more than 2 microns.  The dyes may be acid dyes, 1:1 and 1:2 metal containing dyes, direct dyes, acid mordant dyes and reactive dyes for cellulose.  The dye adsorption ratio can be enhanced by adding a dyeing assistant, e.g. halogenated acetic acids, benzyl halides, benzal halides, benzotrihalides and aromatic carboxylic acids, to the dyebath, or by pretreating the articles with an aqueous solution or dispersion of such a dyeing assistant. Specified polyolefins are polymers and copolymers of ethylene, propylene, 3-methylbutene-1, 4-methylpentene-1, isobutene and styrene, and mixtures thereof.  Examples describe the dyeing with acid and direct dyes fibres spun from compositions comprising calcium carbonate and polyethylene or polypropylene and a sebacic acid dihydrazide condensate; polypropylene and diundecyl aminotriazole or diheptadecyl aminotriazole; polypropylene and an adipic acid dihydrazide/sebacic acid dihydrazide cocondensate; and polypropylene and block copolymers containing methylene aminotriazole and octamethylene aminotriazole units, methylene aminotriazole and -NHCO(CH2)5-units, and methylene aminotriazole and -NHCONH(CH2)4- units; using salicylic acid, o-chlorobenzoic acid, o-cresotinic acid, acetic acid, monochloroacetic acid, formic acid and benzyl chloride as dyeing assistants.