中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

5 records (took 0.018 seconds)

    Aliphatic polyester
    1.
    发明专利
    Aliphatic polyester 未知

    公开(公告)号：AU2009295910A1

    公开(公告)日：2010-04-01

    申请号：AU2009295910

    申请日：2009-09-22

    Applicant: BASF SE

    Inventor： SIEGENTHALER KAI OLIVER ,  FUSSL ANDREAS ,  SKUPIN GABRIEL ,  YAMAMOTO MOTONORI

    IPC: C08G63/16 ,  C08G63/20 ,  C08G63/91 ,  C08K13/02 ,  C08L67/00

    Abstract: A method of producing a molded article involving preparing a copolymer obtained by condensation of (i) 90 to 99.5 mol %, based on components i) to ii), of succinic acid; (ii) 0.5 to 10 mol %, based on components i) to ii), of 4 to 10 mol % sebacic acid; (iii) 98 to 102 mol %, based on components i) to ii), of 1,3-propanediol or 1,4-butanediol; (iv) 0.05 to 0.5% by weight, based on the total weight of components i) to iii), of a crosslinker; and (v) 0.35 to 2% by weight, based on the total weight of components i) to iii), of 1,6-hexamethylene diisocyanate. The copolymer is injection molded or blow molded to form a molded article having a wall thickness above 200 μm.

    Method for producing expandable granulates containing polylactic acid
    3.
    发明专利
    Method for producing expandable granulates containing polylactic acid 未知

    公开(公告)号：AU2011206716A1

    公开(公告)日：2012-08-16

    申请号：AU2011206716

    申请日：2011-01-06

    Applicant: BASF SE

    Inventor： FUSSL ANDREAS ,  SAMPATH BANGARU ,  HOFMANN MAXIMILIAN ,  BELLIN INGO ,  NALAWADE SAMEER ,  HAHN KLAUS ,  KUNKEL ANDREAS ,  LOOS ROBERT

    IPC: C08J9/16 ,  C08L67/04

    Abstract: The invention relates to a method for producing expandable granulates containing polylactic acid, comprising the following steps: a) melting and mixing the constituents i) between 50 and 99.9 wt. %, relative to the total weight of constituents i) to iii), of polylactic acid, ii) between 0 and 49.9 wt. %, relative to the total weight of constituents i) to iii), of at least one other polymer, iii) between 0.1 and 2 wt. %, relative to the total weight of constituents i) to iii), of a diepoxide or polyepoxide, and iv) between 0 and 10 wt. % of at least one additive, b) mixing v) between 3 and 7 wt. %, relative to the total weight of constituents i) to iv), of an organic blowing agent, into the melted polymer mass, by means of a static or dynamic mixer, at a temperature of at least 40°C, c) discharging the mixture via a nozzle plate with boreholes having a maximum on the nozzle outlet diameter of 1.5 mm, and d) granulating the melted mass containing the blowing agent directly behind the nozzle plate, under water, at a pressure of between 1 and 20 bar. The invention also relates to expandable granulates containing polylactic acid, that can be obtained according to said method, and to special expandable granulates containing polylactic acid, and between 3 and 7 wt. % of an organic blowing agent, preferably n-pentane, and especially preferably iso-pentane. The invention also relates to a preferred method for producing expandable granulates containing polylactic acid and a blowing agent, with a low bulk density.

Patent Agency Ranking