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    63.
    发明专利
    未知

    公开(公告)号：DE60124998T2

    公开(公告)日：2007-04-12

    申请号：DE60124998

    申请日：2001-09-04

    Applicant: BASF AG

    Inventor： KOGOWSKI GARY ,  GOERRISSEN HEINER DR ,  MC KEE GRAHAM EDMUND DR

    IPC: C08L25/12 ,  B32B25/14 ,  B32B27/28 ,  C08L25/08 ,  C08L27/06 ,  C08L51/00 ,  C08L51/04 ,  C08L53/00 ,  C08L55/02 ,  C08L67/02 ,  C08L77/00

    Abstract: Vinyl copolymer compositions, especially ASA compositions, exhibit improved weatherability and color retention performance when processed according to the invention. Disclosed herein is a method of improving the weatherability and color retention performance of vinyl copolymer compositions and exterior siding incorporating such vinyl copolymer compositions. More specifically, a method is disclosed comprising improving the weatherability and color retention of vinyl copolymer compositions, especially ASA compositions, which is advantageous with respect to cost and ease of manufacturing. Composite articles are also disclosed incorporating the foregoing improved vinyl copolymer compositions as an exterior layer.

    Polymer micro-suspension useful for production of fibers, films or molding compositions
    64.
    发明专利
    Polymer micro-suspension useful for production of fibers, films or molding compositions 未知

    公开(公告)号：DE19802120A1

    公开(公告)日：1999-07-22

    申请号：DE19802120

    申请日：1998-01-21

    Applicant: BASF AG

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

    IPC: C08F2/18 ,  C08F265/06 ,  C08F291/00 ,  C08F220/18 ,  C08J5/00 ,  C08J5/18 ,  C08L51/04 ,  D01F6/28

    Abstract: A microsuspension polymer (A') having an average particle diameter of 0.08-100 microns comprises (A11) 0.05-20 wt.% of an ethylenically unsaturated monomer having free acidic groups (A12) 80-99.95 wt.% of copolymerizable monomers, whose homopolymer is free of basic groups and (A13) 0-10 wt.% crosslinking monomers. Independent claims are included for: (1) a graft polymer micro-suspension (A) comprising (A1) 20-99.95 wt.% of a graft core having an average particle diameter of 0.08-100 microns and (A2) 0.05-80 wt.% of a graft sheath whereby both (A1) and (A2) are free of basic groups and (A1) and/or (A2) is formed at least partially of ethylenically unsaturated monomers having free acidic groups. (2) a process for the production of (A') or (A) by dispersion of (A') or the corresponding monomers of (A1) in water in the presence of a protective colloid to form a dispersion having an average particle diameter of 0.08-100 microns, polymerisation of the droplets with a radical polymerisation initiator to a conversion of greater than 50% and optionally graft polymerisation of the resulting mixture with monomers of (A2). (3) a molding composition comprising 1-85 wt.% graft polymer (A), 15-99 wt.% (B) - a polymer matrix consisting of polymers of styrene, alpha -methylstyrene, acrylonitrile, methacrylonitrile and/or (meth)acrylic acid ester, 0-50 wt.% (C) - fibrous and/or particulate fillers and 0-40 wt.% (D) - other additives; and (4) fibers, film or molded articles prepared from the molding composition.

    65.
    发明专利
    未知

    公开(公告)号：DE19503545A1

    公开(公告)日：1996-08-08

    申请号：DE19503545

    申请日：1995-02-03

    Applicant: BASF AG

    Inventor： FISCHER WOLFGANG DR ,  KOCH JUERGEN DR ,  MC KEE GRAHAM EDMUND DR

    IPC: C08L25/02 ,  C08F265/00 ,  C08F265/04 ,  C08F285/00 ,  C08L25/12 ,  C08L51/00 ,  C08L51/06 ,  C08L101/00 ,  C08F265/06 ,  C08F279/02 ,  C08F212/06 ,  C08J3/20

    Abstract: Particulate graft copolymers (A) comprise (a1) 5-70 wt. % grafting base with a Tg of below 10 degrees C based on (a11) 50-99.94 wt. % (1-30C alkyl) acrylate(s), (a12) 0-49.9 wt % mono-unsatd. comonomer and (a13) 0.01-5 wt. % polyfunctional crosslinking monomers, (a2) 20-85 wt. % of a shell polymerised in the presence of (a1) from (a21) 95-100 wt % monomer(s) with a refractive index (n D) of more than 1.51 and (a22) 0-5 wt. % polyfunctional crosslinking monomers, and (a3) 10-50 wt % other shell(s) polymerised in the presence of the prod. of (a2), from (a31) 50-95 wt % vinylaromatic monomer and (a32) 5-50 wt % (meth)acrylonitrile, (1-20C alkyl) (meth)acrylates, maleic anhydride, (meth)acrylamide and/or vinyl (1-8C alkyl) ethers. Also claimed are thermoplastic moulding materials contg. graft copolymer particles (A) and another thermoplastic polymer (B) with a Tg of more than 20 degrees C.

    66.
    发明专利
    未知

    公开(公告)号：DE19503117A1

    公开(公告)日：1996-08-08

    申请号：DE19503117

    申请日：1995-02-01

    Applicant: BASF AG

    Inventor： FISCHER WOLFGANG DR ,  KOCH JUERGEN DR ,  MC KEE GRAHAM EDMUND DR

    IPC: C08L51/00 ,  C08F265/00 ,  C08F265/04 ,  C08F265/06 ,  C08L25/02 ,  C08L51/06 ,  C08L51/04 ,  C08L55/02

    Abstract: Graft copolymers (A) comprise (a1) 30-90 wt. % grafting base with a Tg of below 10 degrees C, obtd. from (a11) 10-99.8 wt % 2-ethylhexyl acrylate, (a12) 0-89.8 wt. % other (2-32C alkyl) acrylate, (a13) 0.2-6 wt % diene with at least two conjugated double bond, (a14) 0-10 wt. % polyfunctional crosslinking monomer with no conjugated double bonds and (a15) 0-40 wt % other comonomers, and (a2) 10-70 wt. % of a grafted shell made up of (a21) 50-95 wt. % vinylaromatic monomer, (a22) 5-50 wt % (meth)acrylonitrile, (1-8C alkyl) (meth)acrylate, maleic anhydride, (meth)acrylamide and/or vinyl (1-8C alkyl) ether. Also claimed are thermoplastic moulding materials contg. 10-70 wt. % (A), 30-90 wt. % thermoplastic polymer (B) with a Tg of more than 20 degrees C, 0-50 wt. % filler particles (C) and 0-30 wt. % additives and processing aids (D).

    69.
    发明专利
    未知

    公开(公告)号：DE4228159A1

    公开(公告)日：1994-03-03

    申请号：DE4228159

    申请日：1992-08-25

    Applicant: BASF AG

    Inventor： FUNHOFF ANGELIKA DR ,  MC KEE GRAHAM EDMUND DR ,  HARTMANN HEINRICH DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR ,  SCHWENDEMANN VOLKER DR

    IPC: C08G2/12 ,  C08G2/18 ,  C08G2/28 ,  C08G2/30 ,  C08G4/00 ,  C08G12/18 ,  C09K23/00 ,  C09K23/52 ,  C11D3/37 ,  C08G2/24 ,  B01F17/52 ,  C02F1/56 ,  C02F5/10

    Abstract: A process for the production of polyacetals by the copolymerisation of glyoxylic acid esters with cyclic formals derived from dioles, homopolymers of formaldehyde, trioxepane or mixture of these compounds, in which up to 50 wt % of this group of monomers may be replaced by other conventional copolymerisable monomers like epoxides, aldehydes with at least 2 C atoms, tetrahydrofurane and/or C2 to C4 olefines, in the presence of anionic or cationic polymerisation initiators and possibly the hydrolysis of the glyoxyl acid esters polymerised into the copolymer, use of the polyacetal carboxylates thus obtainable as an additive in low-phosphate and phosphate-free washing and cleaning agents, as a water treatment agent and as a dispersant for finely divided substances, and polyacetals which are obtainable by the anionically or cationically initiated copolymerisation of glyoxyl acid esters with cyclic formals derived from diols and possibly the introduction of stable final groups and possibly hydrolysis of the ester groups of the glyoxyl acid esters polymerised into the copolymers.

    70.
    发明专利
    未知

    公开(公告)号：DE4120724A1

    公开(公告)日：1992-12-24

    申请号：DE4120724

    申请日：1991-06-22

    Applicant: BASF AG

    Inventor： ZEINER HARTMUT DR ,  BETZ WALTER DR ,  MC KEE GRAHAM EDMUND DR

    IPC: C08J7/14 ,  C23C18/16 ,  C23C18/24

    Abstract: Described is a method of treating the surface of moulded polyoxymethylene articles by treating with aqueous acids, the method being characterized in that mixtures of aqueous hydrochloric acid (strength at least 20 % by wt.) with mono- or diethers of an aliphatic polyhydroxy compound are used, the components of the mixture being in the ratio 90:10 to 10:90 % by vol.

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