Patent ES-336693-A1 (ES)
Title: Receptivity of polymers to dyestuffs
IPC: C08L23/02
Filed: 1967-02-10
Abstract: Spinnable mixtures comprise a crystalline polyolefin and 1 to 25% by weight of the mixtures of a polycondensate of epichlorohydrin and a heterocyclic bis-secondary diamine of formula where R is hydrogen or C 1-12 alkyl. Specified polyolefins are polyethylene, polypropylene, polybutene - 1, polypentene - 1, polyhexene - 1, poly - 4 - methylpentene - 1, polyoctene - 1 and polystyrene. The polycondensate may be derived from epichlorohydrin and homopiperazine or 5,5,7-trimethyl, 5,6,7-trimethyl, 5,7-dimethyl or 5,6-dimethyl-7-propyl homopiperazines optionally together with other bis-secondary diamines, e.g. piperazine, 2-methylpiperazine, 2,5- dimethylpiperazine, N,N1 - dimethylethylenediamine, N,N1 - dimethylhexainethylenediamine and N,N1 - dicyclohexylhexamethylenediamine. The compositions may also contain solid dispersing agents, opacizers, stabilizers, dyes and pigments, and may be melt spun to form filaments and fibres. Alternatively the polycondensate may be incorporated by applying a solution or dispersion thereof to shaped articles of the polyolefin. The products are readily dyed. The polycondensates may be rendered water-insoluble by treatment with epoxy compounds, isocyanates, aldehydes, halogens or metal salts. Examples describe the preparation of polycondensates from epichlorohydrin and (1-3) 5,5,7-trimethylhomopiperazine, together with (4) N,N1-dicyclohexylhexamethylenediamine (5) 5,6,7-trimethylhomopiperazine (6) 5,7-dimethyl homopiperazine and (7) 5,6-dimethyl-7-propylhomopiperazine and piperazine. The polycondensates are incorporated in compositions comprising polypropylene, calcium stearate and titanium dioxide, which are spun and the resulting fibres treated with aqueous solutions of ethylene glycol diglycidyl ether.Spinnable mixtures comprise a crystalline polyolefin and 1 to 25% by weight of the mixtures of a polycondensate of epichlorohydrin and a heterocyclic bis-secondary diamine of formula <FORM:1104059/C3/1> where R is hydrogen or C1- 12 alkyl. Specified polyolefins are polyethylene, polypropylene, polybutene - 1, polypentene - 1, polyhexene - 1, poly - 4 - methylpentene - 1, polyoctene - 1 and polystyrene. The polycondensate may be derived from epichlorohydrin and homopiperazine or 5,5,7-trimethyl, 5,6,7-trimethyl, 5,7-dimethyl or 5,6-dimethyl-7-propyl homopiperazines optionally together with other bis-secondary diamines, e.g. piperazine, 2-methylpiperazine, 2,5-dimethylpiperazine, N,N1 - dimethylethylenediamine, N,N1 - dimethylhexamethylenediamine and N,N1 - dicyclohexylhexamethylenediamine. The compositions may also contain solid dispersing agents, opacizers, stabilizers, dyes and pigments, and may be melt spun to form filaments and fibres. Alternatively the polycondensate may be incorporated by applying a solution or dispersion thereof to shaped articles of the polyolefin. The products are readily dyed. The polycondensates may be rendered water-insoluble by treatment with epoxy compounds, isocyanates, aldehydes, halogens or metal salts. Examples describe the preparation of polycondensates from epichlorohydrin and (1-3) 5,5,7-trimethylhomopiperazine, together with (4) N,N1-dicyclohexylhexamethylenediamine (5) 5,6,7-trimethylhomopiperazine (6) 5,7-dimethyl homopiperazine and (7) 5,6-dimethyl-7-propylhomopiperazine and piperazine. The polycondensates are incorporated in compositions comprising polypropylene, calcium stearate and titanium dioxide, which are spun and the resulting fibres treated with aqueous solutions of ethylene glycol diglycidyl ether. ALSO: The dyeability of polyolefin shaped articles such as filaments, fibres and films with acid, chromium, metallised and disperse dyestuffs is improved by incorporating therein 1 to 25 weight per cent. of a polycondensate of epichlorohydrin and a heterocyclic bis-secondary diamine of formula <FORM:1104059/D1-D2/1> where R is hydrogen or C1-12 alkyl. The polycondensate may be added to the polyolefin before spinning or applied as a solution or dispersion to the polyolefin shaped articles. The polycondensates may be rendered water-insoluble by treatment with epoxy compounds, isocyanates, aldehydes, halogens or metal salts. Dyeing with acid and metallised dyestuffs is preferably effected in the presence of ammonium acetate and a surface active agent, e.g. an alkylphenol/ethylene oxide condensate or sodium salt of oleyl methyl taurine, with the subsequent addition of acetic acid to improve dyebath exhaustion. Dyeing with disperse dyes is preferably effected in the presence of a surface active agent. Specified polyolefins are polyethylene, polypropylene, polybutene - 1, polypentene-1, polyhexene-1, poly-4-methylpentene-1, polyoctene-1 and polystyrene. Examples describe the dyeing with acid, chromium, metallised and disperse dyes of fibres spun from compositions comprising polypropylene, calcium stearate, titanium dioxide and polycondensates derived from epichlorohydrin and (1-3) 5,5,7-tri-methylhomopiperazine, together with (4) N,N\sv - dicyclohexylhexamethylene-diamine (5) 5,6,7 - trimethylhomopiperazine (6) 5,7 - dimethylhomopiperazine and (7) 5,6-dimethyl - 7 - propylhomopiperazine and piperazine the fibres having been treated with aqueous solutions of ethylene glycol diglycidyl ether.