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    TRANSPARENT POLYAMIDES
    14.
    发明专利
    TRANSPARENT POLYAMIDES 未知

    公开(公告)号：ZA739672B

    公开(公告)日：1975-01-29

    申请号：ZA739672

    申请日：1973-12-27

    Applicant: HOECHST AG

    Inventor： HERWIG W ,  BRINKMANN L

    IPC: C08G69/00 ,  C08G69/36 ,  C08G20/20

    Abstract: There is disclosed a process for the preparation of novel transparent polyamides with improved properties. These polyamides are obtained by polycondensing 1,3-bis-(amino-methyl)-cyclohexane, which can be partly substituted by the 1,4-derivative, at least one aromatic dicarboxylic acid and at least one amino-carboxylic acid or the lactam thereof with at least one aliphatic straight chain or branched diamine or/and at least one aliphatic straight chain or branched dicarboxylic acid.

    FLAME RESISTANT FILAMENTS AND FIBERS FROM POLYESTERS
    15.
    发明专利
    FLAME RESISTANT FILAMENTS AND FIBERS FROM POLYESTERS 未知

    公开(公告)号：ZA734959B

    公开(公告)日：1974-07-31

    申请号：ZA734959

    申请日：1973-07-20

    Applicant: HOECHST AG

    Inventor： HERWIG W ,  BOLLERT U ,  KLEINER H

    IPC: C08G63/00 ,  C07F9/30 ,  C07F9/32 ,  C08G63/692 ,  D01F6/84 ,  D01F

    Abstract: 1435162 Flame resistant polyester fibres HOECHST AG 20 July 1973 [22 July 1972] 34663/73 Heading C3R [Also in Division C2] Fibres or filaments are made from a polyester comprising dicarboxylic acid units, diol units and units of the formula in which R is an alkylene, cycloalkylene, arylene or aralkylene radical and R 1 and R 2 are C 1-6 alkyl or an aryl or aralkyl group, and R, R 1 and R 2 may carry substituents or contain hetero atoms. The examples describe fibres of polyesters prepared from dimethyl terephthalate, optionally with dimethyl isophthalate, ethylene glycol or 1,4-butanediol and methylene- or ethylene-di(methylphosphinic acids), phenylene - 1,4 - di(methylphosphinic acid), pxylylene - di(methyl - phosphinic acid), ethylene - 1,2 - di(phenylphosphinic acid)

    19.
    发明专利
    未知

    公开(公告)号：BR6802887D0

    公开(公告)日：1973-04-17

    申请号：BR20288768

    申请日：1968-10-04

    Applicant: HOECHST AG

    Inventor： ASMUS K ,  HERWIG W ,  BRINKMAM L

    IPC: C08L67/02

    Abstract: 1,207,440. Polyester moulding composition. FARBWERKE HOECHST A.G. 7 Oct., 1968 [7 Oct., 1967], No. 47434/68. Heading C3R. A polyester-based moulding composition is made by blending (a) a linear, saturated polyester of an aromatic dicarboxylic acid and a saturated aliphatic or cycloaliphatic diol and (b) 0.1% to 10% by weight of the total mixture, of poly-3-methyl butene-1 of molecular wt. above 5000 and of which at least 80% of the particles are 10Á or less in size. The preferred polyesters are polyethylene terephthalate or polycyclohexane - 1,4 - dimethylol terephthalate, and the former containing also units of naphthalene-2,6-dicarboxylic acid, adipic acid, neopentyl glycol or butane-1,4-diol. Blending methods specified are (1) stirring the finely divided poly-3-methylbutene-1 with the molten polyester, or (2) mixing the granulated components, melting in an extruder, extruding whilst cooling, and then granulating the resulting solid. The composition may also contain nucleating agents such as finely divided calcium carbonate, aluminium silicate or talc.

    THERMOPLASTIC MOULDING COMPOSITIONS ON THE BASIS OF POLYESTERS
    20.
    发明专利
    THERMOPLASTIC MOULDING COMPOSITIONS ON THE BASIS OF POLYESTERS 未知

    公开(公告)号：ZA704555B

    公开(公告)日：1972-07-26

    申请号：ZA704555

    申请日：1970-07-02

    Applicant: HOECHST AG

    Inventor： HERWIG W ,  UEBE R

    IPC: C08K5/53 ,  C08F ,  C08G

    Abstract: 1283644 Polyester-based moulding composition FARBWERKE HOECHST AG 9 July 1970 [10 July 1969] 33378/70 Heading C3R A thermoplastic moulding composition comprises a linear saturated polyester of an aromatic dicarboxylic acid and optionally up to 10% by wt. of an aliphatic diacid or a hydroxycarboxylic acid with a saturated aliphatic or cycloaliphatic diol, e.g. polyethylene terephthalate, and an alkali metal salt of a phosphonic acid RPO(OH) 2 , a phosphonic halfester RPO(OR 1 )(OH), a phosphinic acid R 2 PO(OH) or a phosphonous acid RP(OH) 2 where R and R 1 are hydrocarbon radicals of up to 15 carbon atoms, the additive comprising 0À005 to 5 wt. per cent relative to the polyester. The use of the disodium salt of n-hexyl phosphonic acid and the sodium salt of diphenyl phosphinic acid is described in Examples 1 and 2. Paraffin or other wax may be used as a coating on granules of the composition to exclude moisture.

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