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    35.
    发明专利
    未知

    公开(公告)号：SE7411623L

    公开(公告)日：1975-03-18

    申请号：SE7411623

    申请日：1974-09-16

    Applicant: HOECHST AG

    Inventor： KLEINER H-J ,  FINKE M ,  BOLLERT U ,  HERWIG W

    IPC: C08G63/00 ,  C07F9/6571 ,  C08G63/20 ,  C08G63/692 ,  C08G79/04 ,  D01F6/84 ,  C08G17/133 ,  C08G63/68

    Abstract: Flame-repellant linear polyesters are obtained by incorporating by condensation phosphorus-compounds having the formula O &uarr& HO-P-R-COOH, ¦ R1 wherein R and R1 are organic radicals which may also contain hereto atoms into the linear polyesters, preferably those from terephthalic acid and ethylene glycol. These polyesters are materials of which flame-repellent filaments, fibers, sheets, press-moulded and injection-moulded articles may be made. Products of the invention can be used whereever especially acute risks of ignition and fire exist.

    40.
    发明专利
    未知

    公开(公告)号：BR7303843D0

    公开(公告)日：1974-01-17

    申请号：BR384373

    申请日：1973-05-24

    Applicant: HOECHST AG

    Inventor： BRINKMANN L ,  HERWIG W

    IPC: C08G69/00 ,  C08G69/26 ,  C08G20/02

    Abstract: 1433144 Transparent polyamides HOECHST AG 25 May 1973 [27 May 1972] 25130/73 Heading C3A Transparent polyamides have the formula wherein 10 to 95%, randomly distributed, of the R 1 groups represent cyclohexane-bis-methylenyl, 0 to 50% thereof being the 1,4- and 50 to 100% the 1,3-isomer, and the remaining 5 to 90% represent C 4-20 straight chain divalent aliphatic hydrocarbon radicals; 10 to 90% of the R 2 groups represent C 5-18 divalent aromatic hydrocarbon radicals and the remaining 10 to 90% C 3-18 divalent saturated aliphatic hydrocarbon radicals; R 3 represents H, R 4 represents -OH, -NH-R 1 -NH 2 , or -NH-R 1 -NH-OC-CH 3 ; and x represents the degree of polymerization corresponding to a reduced specific viscosity of 1-0 to 2À5 dl./g. (on 1 g. in 100 ml. 60/40 w./w. phenol/tetrachloroethane at 25‹ C.). They may be prepared by reacting the appropriate diamines and acids (or equivalent derivatives), optionally with acetic acid as chain terminator, e.g. in a stirred autoclave. The higher molecular weights may be obtained by further condensation in a doublescrew extruder under reduced pressure. In specific example the reactants are trans-1,3- and - 1,4 - bis - (aminomethyl) - cyclohexane and various of tere- and iso-phthalic and adipic acids, 1,10-decane- and 4,4 1 -diphenylsulphone dicarboxylic acids and hexa- and dodecamethylene diamines. Reference is made to Specifications 1,112,395 and 922,677. Reference is made by the Comptroller to Specification 1,383758.

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