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    • 7. 发明专利
    • Biodegradable polymer mixture
    • AU2009295999B2
    • 2013-12-19
    • AU2009295999
    • 2009-09-21
    • BASF SE
    • STEINKE TOBIAS HEINZGORTZ HANS-HELMUTAHLERS JURGENGRUBER FREDDYSKUPIN GABRIEL
    • C08L67/02C08L69/00
    • The present invention relates to a biodegradable polymer mixture comprising i) 40 to 95 wt.-% based on the total weight of components i to ii, at least one polyester based on aliphatic or aliphatic-aromatic dicarboxylic acids and aliphatic dihydroxy compound; ii) 5 to 60 wt.-% based on the total weight of components i to ii, polyalkylene carbonate, in particular polypropylene carbonate; iii) 0 to 60 wt.-% based on the total weight of components i to iii, at least one biodegradable homo- or copolyester selected from the group consisting of polylactic acid, polycaprolactone, polyhydroxyalkanoates and an inorganic or organic filler; iv) 0 to 10 wt.-% based on the total weight of components i to ii of a styrene, acrylic acid ester and/or methacrylic acid ester based copolymer containing an epoxide group and v) 0 to 15 wt.-% of an additive selected from the group consisting of lubricants, antiblocking agents, antistatic agents, UV absorbers, UV stabilizers, thermal stabilizers, dyes, pigments, softeners, fertilizers and pesticides ingredients. The present invention further relates to a method for producing biodegradable polymer mixtures, to the use of biodegradable polymer mixtures for the production of molded parts, films or fibers as well as molded parts, and to films or fibers comprising biodegradable polymer mixtures.
    • 9. 发明专利
    • Preparing acrylonitrile-butadiene styrene-copolymer, useful to prepare e.g. foils and fibers, comprises adding seed latex, polymerizing butadiene, styrene, styrene and acrylonitrile, and mixing graft copolymer with thermoplastic copolymer
    • DE102009026933A1
    • 2010-01-14
    • DE102009026933
    • 2009-06-15
    • BASF SE
    • STEINKE TOBIAS HEINZSCHADE CHRISTIANBANASZAK BRIAN
    • C08F279/04C08J5/00
    • Preparing acrylonitrile-butadiene styrene-copolymer containing (A) graft copolymer comprising (A1) graft substructure, which contains (A11) butadiene, (A12) styrene and (A13) agglomerizing agent, (A2) graft shell containing (A21) styrene and (A22) acrylonitrile, and (B) thermoplastic copolymer containing (B1) acrylonitrile and (B2) styrene, comprises adding seed latex; radical emulsion polymerization of the component (A11) and optionally (A12); radical or redox initiator emulsion polymerization of components (A21) and (A22); and mixing (A) with thermoplastic copolymer (B). Preparation of acrylonitrile-butadiene styrene-copolymer containing (A) 10-60 wt.% of a graft copolymer comprising (A1) 55-70 wt.% of graft substructure, which contains (A11) 85-100 wt.% of butadiene, (A12) 0-10 wt.% of styrene and (A13) 0-5 wt.% of an agglomerizing agent, (A2) 30-45 wt.% of graft shell containing (A21) 70-90 wt.% of styrene and (A22) 10-30 wt.% of acrylonitrile, and (B) 40-90 wt.% of a thermoplastic copolymer containing (B1) 15-35 wt.% of acrylonitrile and (B2) 65-85 wt.% of styrene, comprises adding a seed latex; radical emulsion polymerization of the component (A11) and optionally (A12), in the presence of the seed latex; radical or redox initiated emulsion polymerization of the components (A21) and (A22) in the presence of the formed (A1); and mixing (A) with a thermoplastic copolymer (B) produced in a separate way, where: the seed latex exhibits an average particle diameter of less than 10 nm, determined by analytical ultracentrifuge corresponding to the method according to W. Scholtan and H. Lange, Colloid.-Periodical and Z.-Polymer 250 (1972), pages 782-796; and instead of the described turbidity optics, an interference optic is used in the process. Independent claims are included for: (1) the acrylonitrile-butadiene styrene-copolymer obtained by the above method; (2) the preparation of a rubber elastic polymer particulate comprising polymerization the rubber elastic polymer particulate forming monomer in the presence of the seed latex; and (3) the rubber elastic polymer particulate obtained by the above process.