中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

79 records (took 0.025 seconds)

    Elastomeric (graft) polymer microsuspension is useful for the production of impact resistant molding compositions of low yellow coloration
    1.
    发明专利
    Elastomeric (graft) polymer microsuspension is useful for the production of impact resistant molding compositions of low yellow coloration 未知

    公开(公告)号：DE19802094A1

    公开(公告)日：1999-07-22

    申请号：DE19802094

    申请日：1998-01-21

    Applicant: BASF AG

    Inventor： MC KEE GRAHAM EDMUND DR ,  GOERRISSEN HEINER DR ,  KOCH JUERGEN DR ,  KASTENHUBER WALTER

    IPC: C08F2/18 ,  C08F255/08 ,  C08F265/04 ,  C08F220/18 ,  C08F291/02 ,  C08L51/04 ,  C14C11/00 ,  D06M15/21 ,  D21H17/37

    Abstract: Production of an elastomeric (graft)polymer micro-suspension comprises dispersion of a mixture comprising ethylenically unsaturated monomers, crosslinking monomers and aliphatic hydrocarbon polymer; polymerisation of the droplets using a radical polymerisation initiator; and optionally graft polymerisation of the resulting mixture in the presence of ethylenically unsaturated monomers. Production of an elastomeric (graft)polymer micro-suspension (A) comprises (a) dispersion of a mixture comprising (A11) 30-99.9 wt.% ethylenically unsaturated monomers, (A12) 0-20 wt.% crosslinking monomers and (A13) 0.1-50 wt.% aliphatic hydrocarbon polymer having a Tg of less than 0degreesC, (b) polymerisation of the droplets using a radical polymerisation initiator, and optionally (c) graft polymerisation of the resulting mixture in the presence of ethylenically unsaturated monomers. Independent claims are included for (i) the elastomeric (graft) polymer micro-suspension (A); (ii) a molding composition comprising (A) 1-85 wt.% graft polymer, (B)15-99 wt.% of a polymer matrix consisting of polymers of styrene, alpha -methylstyrene, acrylonitrile, methacrylonitrile and/or (meth)acrylic acid ester, (C) 0-50 wt.% fibrous and/or particulate fillers, and (D) 0-40 wt.% other additives; and (iii) fibers, film or molded articles prepared from the molding composition.

    2.
    发明专利
    未知

    公开(公告)号：ES2124353T3

    公开(公告)日：1999-02-01

    申请号：ES94114215

    申请日：1994-09-09

    Applicant: BASF AG

    Inventor： FISCHER WOLFGANG DR ,  GUNTHERBERG NORBERT DR ,  MC KEE GRAHAM EDMUND DR

    IPC: C08F2/22 ,  C08F212/00 ,  C08F212/04 ,  C08F212/06 ,  C08F220/10 ,  C08F220/12 ,  C08L25/00 ,  C08F220/42 ,  C08L25/08 ,  C08L25/12 ,  C08L25/14 ,  C08L33/06 ,  C08L33/18

    Abstract: Particulate polymer A, having a mean particle size of below 1000 nm, comprising a1: up to 99.8 % by weight of at least one vinylaromatic monomer a1, a2: up to 99.8 % by weight of at least one alkyl methacrylate a2 having 1 to 8 carbon atoms in the alkyl radical, a3: up to 50 % by weight of at least one polar, copolymerisable, ethylenically unsaturated monomer a3, a4: from 0.1 to 10 % by weight of at least one polyfunctional, crosslinking monomer a4, a5: from 0.1 to 15 % by weight, preferably from 0.5 to 10 % by weight, of at least one monomer a5 containing one or more acidic, basic or epoxy groups, where the total amount of constituents a1, a2 and a3 is from 75 % by weight to 99.8 % by weight, based on A, and the total amount of a1, a2, a3, a4 and a5 is 100 % by weight, based on A.

    3.
    发明专利
    未知

    公开(公告)号：DE19728629A1

    公开(公告)日：1999-01-07

    申请号：DE19728629

    申请日：1997-07-04

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT DR ,  KOCH JUERGEN DR ,  ITTEMANN PETER DR ,  SEIBRING JOACHIM DR ,  GRABOWSKI SVEN DR ,  MC KEE GRAHAM EDMUND DR ,  MOSBACH NORBERT

    IPC: C08L51/06 ,  C08F279/04 ,  C08L25/12 ,  C08L25/14 ,  C08L51/04 ,  C08L55/02 ,  C08L53/02 ,  C08J5/00

    Abstract: The invention relates to thermoplastic molding material containing the constituents A) to F), 5 to 80 wt. % of a graft polymer A) with a bimodal particle size distribution, 20 to 95 wt. % of a thermoplastic polymer B) with a viscosity VZ of 50 to 120 ml/g and optionally other thermoplastic polymers C), D) and/or E) based on at least one vinyl-aromatic monomer, and optionally additives F). The inventive material can be obtained by 1) producing the graft polymers A) according to the emulsion polymerization method, 2) mixing the graft polymer A) with polymer B) and, insofar as they are available, the other constituents C), D), E) and/or F) in a mixing device, whereby a substantially molten polymer mixture arises and 3) rapidly cooling the substantially molten polymer mixture.

    Polycarbonate moulding material which does not form burning drips when burnt
    7.
    发明专利
    Polycarbonate moulding material which does not form burning drips when burnt 未知

    公开(公告)号：DE19540312A1

    公开(公告)日：1997-04-30

    申请号：DE19540312

    申请日：1995-10-28

    Applicant: BASF AG

    Inventor： WEBER MARTIN DR ,  WEIS ROBERT DR ,  HECKMANN WALTER DR ,  HINGMANN ROLAND DR ,  MC KEE GRAHAM EDMUND DR

    IPC: C08K5/523 ,  C08L25/12 ,  C08L51/04 ,  C08L69/00

    Abstract: Moulding materials (MM), containing (A) 1-96.5 wt% halogen- free polycarbonate(s), (B) 1-96.5 wt% halogen-free graft copolymer consisting of (b1) 40-80 wt% rubber-elastic grafting base with a Tg of below 0 deg C and (b2) 20-60 wt% grafted shell derived from (b21) 50-95 wt% vinylaromatic monomers of formula (I), in which R = H or 1-8C alkyl; R = 1-8C alkyl; n = 0, 1, 2 or 3; and/or MMA, and (b22) 5-50 wt% (meth)acrylonitrile, MMA and/or maleic anhydride, (C) 1-96.5 wt% halogen-free thermoplastic copolymer with an average mol. wt. (Mw) of less than 400,000, derived from (c1) 50-95 wt% monomer (I) and/or MMA and (c2) 5-50 wt% comonomer(s) as in (b22), (D) 0.5-30 wt% halogen-free thermoplastic copolymer with a Mw of at least 800,000 and a wide mol. wt. distribution, derived from (d1) 50-95 wt% monomer(s) (I), (d2) 5-50 wt% comonomers as in (b22) and (d3) 0-15 wt% mono-unsaturated comonomers with at least one polar functional group, (E) 1-25 wt% halogen-free phosphorus compound(s) and (F) 0-50 wt% additives. Also claimed are mouldings, film and fibres containing MM.

Patent Agency Ranking