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    FIRE RETARDANT SHEATH AND CORE CONJUGATE FIBRES
    3.
    发明专利
    FIRE RETARDANT SHEATH AND CORE CONJUGATE FIBRES 未知

    公开(公告)号：GB1279357A

    公开(公告)日：1972-06-28

    申请号：GB4142570

    申请日：1970-08-28

    Applicant: TORAY INDUSTRIES

    Inventor： YANAGI MASANA ,  NAKAMURA ITARU ,  OHOSUGI MASAYUKI ,  TAKIZAWA KIYOSI ,  KAKINAMI MASANORI ,  SANO CHIKARA

    IPC: D01F1/10 ,  D01F8/04

    Abstract: 1279357 Fireproofed conjugate filaments TORAY INDUSTRIES Inc 28 Aug 1970 41425/70 Heading B5B A conjugate sheath and core fibre comprises a core polymer which contains more than 5% by weight and less than 50% of a halogenated fire retardant compound and more than 5% by weight of a phosphorus-containing fire-retardant compound. The core component contains those compounds in such quantities that the halogen in the core component provided by the halogenated fire-retarding compound is between 3 and 50 times the weight of the phosphoruscontaining fire-retardant compound present in the core. The sheath polymer may also contain these fire-retarding compounds but, when it does, the percentage by weight of both of them is less than that obtaining in the core polymer. In addition, the maximum quantity of the halogenated fire-retardant is that which gives a halogen content of 10% by weight of the sheath polymer. The fibres are produced conventionally by melt-spinning the polymeric materials, the fireretardant compounds being present in the melt. The invention is particularly suitable for use with polyamides such as Nylon 6, Nylon 6,6 and polyesters such as homo- or copolymers of polyethylene terephthalate. Preferred phosphorus-containing fire-retardants are trialkyl and triaryl phosphates and phosphites and preferred halogenated compounds have the general formula C 6 H 4 X m Y n where X is chlorine or bromine, Y a plurailty of specified alkyl, aryl and alkylaryl radicals and m and n integers such that m is from 1 to 6 and n from 0 to 5. The fibres retain the fire-retardant compounds under normal conditions of use, and undergo little yellowing or exposure to U.V. light.

    9.
    发明专利
    未知

    公开(公告)号：DE1645525A1

    公开(公告)日：1970-12-17

    申请号：DE1645525

    申请日：1967-09-22

    Applicant: TORAY INDUSTRIES

    Inventor： KATO TADAO ,  YANAGI MASANA ,  ICHIKAWA YOSHIMITSU ,  MISHIMA SHIZUOKA ,  OHOSUGI MASAYUKI ,  HIJIRI MASAO ,  MINAMI MUNEYOSHI ,  TSUTSUMI TADAO

    IPC: C08K5/16 ,  C08G51/60

    Abstract: 1,203,603. Stabilizing polyethylene terephthalates. TORAY INDUSTRIES Inc. 5 July, 1967 [24 Sept., 1966; 15 April, 1967], No. 30995/67. Heading C3R. Polyesters in which the recurring units consist wholly or predominantly of ethylene terephthalate units are stabilized against heat and oxidation by adding to them from 0.001 to 5% of at least one nitrogen containing compound of formula (a) where R 1 is hydrogen, a C 1-10 hydrogen group or a C 1-10 hydroxyalkyl group, R 2 and R 3 are hydrogen or C 1-10 hydrocarbon groups and n is 1 or 2; (b) where R 1 , R 2 , R 3 and n are as above and R is a di- or tri-valent benzene ring group; (c) where R 4 is a C 1-10 hydrocarbon group, R 5 is hydrogen, a C 1-10 hydrocarbon group or an alkoxyaryl group containing 1-10 carbon atoms in the alkyl moiety, R 6 is an alkoxyaryl group containing 1-10 carbon atoms in the alkyl moiety, and X is hydrogen, a hydroxyl group or the group (d) where R 7 is an alkylene or alkenylene group or a 1,2 - phenylene or 1,8 - naphthalene group whose nuclei may be substituted (e.g. by alkyl, halogen, carboxyl, alkoxycarbonyl or hydroxyalkoxycarbonyl), R 8 is a hydrogen atom, an acyl group, a hydrocarbon group which may be substituted by a carboxy, hydroxyl, alkoxycarbonyl or hydroxyalkoxycarbonyl group and n is 1 or 2; (e) where R 9 and R 10 are hydrogen atoms, phenyl groups or C 1-10 alkyl groups; or (f) where R 1 and R 2 are as defined above, R 14 is hydrogen or a C 1-10 hydrocarbon group and m is 1, 2 or 3. The stabilizers may be added before or during the preparation of the polyester or to the final product.

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