| 摘要 |
1,155,474. Polymer compositions. ASAHI KASEI KOGYO K.K. 9 June, 1967 [11 June, 1966; 15 June, 1966; 19 Jan., 1967], No. 26769/67. Heading C3P. [Also in Division D1] Compositions suitable for spinning dyeable fibres comprise (A) crystalline polypropylene or poly-4-methyl penteno-1, (B) 5 to 15 weight per cent of at least one polymeric cellulose derivative, polyester, polyvinyl or polyvinylidene polymer having a softening point below 200‹ C., and (C) 5 to 20 weight per cent of one or more of liquid paraffins, polyalkylene oxides and phthalic acid esters. The polymer (B) may be a cellulose ether, ester or ether ester; a polyester derived from dibasic acid or derivatives, hydroxycarboxylic acids and/or dihydroxy compounds; or a polymer derived from one or more ethylenically unsaturated compounds. The polyalkylene oxide may be a polyethylene or polypropylene oxide; and the phthalic ester dimethyl, diethyl, dibutyl or dioctyl phthalate. The compositions may also comprise stabilizers, brightening agents and fillers, e.g. titanium dioxide. Extensive lists of suitable substances (B). and precursors thereof are given, and examples describe the dyeing of fibres prepared from compositions comprising (1) polypropylene, cellulose acetate butyrate, diethyl phthalate and triphenyl phosphate; (2) polypropylene, ethyl cellulose and di-n-octyl phthalate; (3) poly-4- methylpentene-1, ethyl cellulose and dibutyl phthalate; (4) polypropylene, n-propyl cellulose, paraffin and polyethylene oxide; (5) polypropylene, polyethylene sebacate and paraffin; and (6) poly-4-methyl-pentene-1, an ethylene/ vinyl acetate copolymer and paraffin. |
