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    21.
    发明专利
    未知

    公开(公告)号：AT385455T

    公开(公告)日：2008-02-15

    申请号：AT04718934

    申请日：2004-03-10

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  CZAUDERNA BERNHARD ,  SAUER MICHAEL ,  BARDON RAINER ,  AN YOHWAN

    IPC: B29B9/12 ,  B29B9/06

    Abstract: Granule surface contours include less than 10% concave locations, the remainder being convex, as determined by incident-light interference contrast spectroscopy. Independent claims are included for the following: (1) a method of manufacturing polymer granules comprising forcing a polymer melt through a nozzle into a cutting chamber flooded with coolant and dividing the polymer; (2) a method of manufacturing moldings, film or fibers; and (3) a method of quality control employing incident light interference contrast spectroscopy to measure and control concave inclusions in their surfaces. The interval between emerging from the nozzle and cutting to granules is less than 20 ms. The granules are cooled in liquid coolant to a temperature of 60-130[deg]C at a rate of 2-30[deg]C/s. Granule/coolant ratio is 0.03:1 to 0.12:1. Coolant is introduced into the chamber at a pressure of 1.1 bar. The quality control method, without consideration of granule surface curvature, determines ring-shaped reflections arising from concave locations, and the surface area they enclose. These areas are expressed as a ratio of the total observed surface area.

    Grafting polymer rubbers, useful in thermoplastic molding materials, comprises a grafting base and a grafting layer grafted with the grafting base obtained from vinylaromatic monomers and/or polar copolymerizable monomers
    22.
    发明专利
    Grafting polymer rubbers, useful in thermoplastic molding materials, comprises a grafting base and a grafting layer grafted with the grafting base obtained from vinylaromatic monomers and/or polar copolymerizable monomers 未知

    公开(公告)号：DE102005022630A1

    公开(公告)日：2006-11-16

    申请号：DE102005022630

    申请日：2005-05-11

    Applicant: BASF AG

    Inventor： MC KEE GRAHAM EDMUND ,  BREULMANN MICHAEL ,  DUIJZINGS WIL ,  GUENTHERBERG NORBERT ,  FISCHER WOLFGANG ,  KOPPELMANN LARS ,  SAUER MICHAEL

    IPC: C08F279/00 ,  C08L51/00

    Abstract: Grafting polymer rubbers, obtained from a grafting base (a1) containing a first fraction group (i) by emulsion polymerization of produced particles with a particle diameter of less than 200 nm, and a second fraction (ii) by emulsion polymerization of produced particles with a particle diameter of greater than 550 nm; one or more grafting layer (a2) grafted with (a1) obtained from at least vinylaromatic monomers (a21) and/or at least a polar (a22) with copolymerizable monomers. Grafting polymer rubbers, obtained from a grafting base (a1) containing a first fraction group (i) by emulsion polymerization of produced particles with a particle diameter of less than 200 nm, and a second fraction (ii) by emulsion polymerization of produced particles with a particle diameter of greater than 550 nm, where the sum of the first fraction and the second fraction amounts to at least 75 wt.%, related to the total quantity of the particles of (a1), and the remaining 25 wt.%, related to the total quantity of the particles of (a1), where the particles are produced by emulsion polymerization, exhibits a particle diameter in the intermediate area between the particles of the first fractions and the particles of the second fractions, where (a1) is obtained from at least one alkyl acrylate (a11) with 1-32C atoms in the alkyl, optionally at least polyfunctional, crosslinking monomers (a12), optionally at least further monomers (a13), preferably vinylalkylether with 1-8C atoms in the alkyl, butadiene, isoprene, styrene, acrylonitrile, methacrylnitrile, methylmethacrylate, acrylic acid, methacrylic acid, itaconic acid and maleic acid anhydride, optionally groups (a14), from regulator-, initiator- and/or emulsifying agent systems; where a part or entire part of (a1) additionally exhibit a core, developed from 30-100 wt.% of at least vinylaromatic monomers and 0-70 wt.% of one or more further copolymerizable monomers, in each case related to the total quantity the core of forming monomers; and one or more grafting layers (a2) grafted with (a1), developed from at least vinylaromatic monomers (a21) and/or at least a polar (a22) with copolymerizable monomers, preferably from acrylonitrile, methacrylnitrile, esters of (meth)acrylic acid with 1-4C atoms in the acryl group, maleic acid anhydride and its imides, (meth)acrylamide and vinylalkylethers with 1-8C atoms in the alkyl; optionally groups (a23) from regulator-, initiator- and/or emulsifying agent systems. Independent claims are included for: (1) thermoplastic molding material comprising 5-90 wt.%, preferably 12-60 wt.% of particle forming grafting polymer, 10-95 wt.%, preferably 40-88 wt.% of at least one amorphous polymer, developed from at least vinylaromatic monomers and optionally at least ethylenic unsaturated monomers, or developed from methylmethacrylate and at least vinylaromatic monomers and/or optionally at least a further ethylenic unsaturated monomers, 0-75 wt.% of further polymers (b), preferably polycarbonates, polyamides, polyesters, polyetherketone, polyoxyalkylene, polyarylenesulfide, polyvinyl chloride or thermoplastic polyetherurethane, and 0-60 wt.% of fibers or particle forming fillers; and (2) molded articles, foils, fibers or foams obtained by using the thermoplastic molding materials.

    Production of polymer dispersions, used as e.g. surface coatings and paints, comprises mixing a polymer, a surfactant and water in a twin-screw extruder
    27.
    发明专利
    Production of polymer dispersions, used as e.g. surface coatings and paints, comprises mixing a polymer, a surfactant and water in a twin-screw extruder 未知

    公开(公告)号：DE10109992A1

    公开(公告)日：2002-09-05

    申请号：DE10109992

    申请日：2001-03-01

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  KURPS ARMIN ,  HOFMANN JUERGEN ,  MC KEE GRAHAM EDMUND

    IPC: B29C47/00 ,  C08J3/03 ,  C09D5/02 ,  C08J3/05 ,  C08J5/02 ,  C09J11/06

    Abstract: Production of polymer dispersions comprises mixing polymer, surfactant and water in twin-screw extruder comprising feed zone, melting zone, two mixing zones and discharge zone. A ring of molten polymer is formed between melting zone and first mixing zone, and seals in the contents of the feed zone. The discharge zone has a pressure-retaining device. The final solids content of dispersion is adjusted by adding water to last mixing zone Production of polymer dispersions with a solids content of 5-95 wt.% comprises mixing at least one polymer, at least one surfactant and water in a twin-screw extruder operating at a screw speed of at least 600 rpm, where: (a) the extruder comprises a feed zone into which the polymer is introduced; a melting zone in which the polymer is melted; a first mixing zone into which part of the water is fed to form a polymer-water mixture; a last mixing zone into which the rest of the water is fed and mixed with the polymer-water mixture; and a discharge zone; (b) the surfactant is introduced into the feed zone, the melting zone, the first mixing zone and/or the last mixing zone; (c) the design of the screws is such that a ring of molten polymer is formed between the melting zone and the first mixing zone and seals in the contents of the feed zone; (d) the discharge zone has a pressure-retaining device; and (e) the final solids content of the dispersion is adjusted by adding the appropriate amount of water to the last mixing zone.

    29.
    发明专利
    未知

    公开(公告)号：AT202125T

    公开(公告)日：2001-06-15

    申请号：AT97910284

    申请日：1997-09-12

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  HOFMANN JUERGEN ,  MAILAHN ELMAR ,  OHLIG HILMAR ,  CZAUDERNA BERNHARD ,  GRABOWSKI SVEN ,  BUS KLAUS

    IPC: B29B7/48 ,  B29B7/58 ,  B29B13/06 ,  B29C48/40 ,  B29C48/67 ,  B29C48/76 ,  B29C63/00 ,  C08J3/20 ,  C08J3/205 ,  C08J5/18 ,  C08L21/00 ,  C08L51/04 ,  B29C47/40 ,  B29C47/64 ,  B29C47/76

    Abstract: PCT No. PCT/EP97/05000 Sec. 371 Date Mar. 25, 1999 Sec. 102(e) Date Mar. 25, 1999 PCT Filed Sep. 12, 1997 PCT Pub. No. WO98/13412 PCT Pub. Date Apr. 2, 1998A process for preparing thermoplastics or polymer blends comprising (A) from 5 to 95% of a water-moist elastomer component containing up to 60% of residual water, (B) from 5 to 95% of a thermoplastic polymer, (C) from 0 to 95% of a further polymer, and (D) from 0 to 70% of additives, said process comprising mixing the components A to D in an extruder with mechanical dewatering of component A, wherein the extruder has at least two rotating screws and, in the conveying direction, is essentially composed of a metering section into which component A is fed, a squeeze section which serves for dewatering component A and contains a retarding element and an associated dewatering orifice which is present upstream of the retarding element by a distance corresponding to at least one screw diameter, a feed section in which the thermoplastic polymer B is introduced as a melt into the extruder, a plastication section with mixing or kneading elements, a devolatilization section with an orifice and in which the remaining water is removed as steam, and a discharge zone.

    30.
    发明专利
    未知

    公开(公告)号：DE19953955A1

    公开(公告)日：2001-05-10

    申请号：DE19953955

    申请日：1999-11-09

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  ITTEMANN PETER ,  GOTTSCHALK AXEL

    IPC: C08L25/12 ,  C08L53/02 ,  C08L55/02

    Abstract: Thermoplastic molding materials containing (A) 80 -99.995 wt. %, in relation to the total weight of the molding material, of a copolymer comprised of (a1) 50 -99 wt. %, in relation to (A), of at least one vinyl aromatic monomer, and (a2) 1 - 50 wt.- %, in relation to (A), of at least one polar, copolymerizable comonomer, (B) 0.005 - 20 wt. %, in relation to (A), (B), and optionally (C), a rubber elastic block copolymer consisting of at least one polymerized unit block BA comprising aromatic monomers and forming a hard phase and at least one elastomer bock BB/A consisting of at least one polymerized unit comprising vinyl aromatic monomers in addition to a diene and forming a soft phase, wherein the glass transition temperature Tg of block BA is above 25 DEG C and the glass transition temperature of clock BB/A is below 25 DEG C, and (C) 0-300 wt. %, in relation to (A) and (B) of at least one other polymer, (D) 0 -30 wt. %, in relation to the total weight of the molding materials, of other additives and auxiliary processing agents.

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