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    14.
    发明专利
    未知

    公开(公告)号：DE3629581A1

    公开(公告)日：1988-03-03

    申请号：DE3629581

    申请日：1986-08-30

    Applicant: BASF AG

    Inventor： GULBINS ERICH DR ,  MC KEE GRAHAM EDMUND DR ,  LEY GREGOR DR

    IPC: C09D5/02 ,  C08L33/06 ,  C08L51/00 ,  C08L51/04 ,  C08L55/00 ,  C08L61/04 ,  C08L61/06 ,  C09D133/00 ,  C09D133/04 ,  C09D133/06 ,  C09D151/00 ,  C09D151/04 ,  C09D161/04 ,  C09D161/06 ,  C09D161/20 ,  C09D3/81 ,  C09D3/36 ,  C09D3/56

    Abstract: The present invention relates to aqueous binder dispersions for the preparation of, inter alia, paints and finishes, substantially containing (A) from 0.5 to 50% by weight of a phenolic resin precondensate, (B) from 20 to 70% by weight of a copolymer of predominant proportions of alkyl acrylates and/or methacrylates, minor proportions of comonomers with groups capable of crosslinking and other comonomers, the copolymer being in the form of a dispersion and being crosslinkable by a condensation reaction, and (C) from 10 to 70% by weight of a graft elastomer comprising a diene polymer as the base polymer and a copolymer of, substantially, styrene, acrylonitrile and C1-C6-alkyl acrylates and/or methacrylates, as the graft polymer, the graft elastomer being in the form of a dispersion, the percentages being based on the solids content of the total amount of (A), (B) and (C).

    16.
    发明专利
    未知

    公开(公告)号：DE60124998D1

    公开(公告)日：2007-01-18

    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.

    17.
    发明专利
    未知

    公开(公告)号：DE19702733A1

    公开(公告)日：1998-07-30

    申请号：DE19702733

    申请日：1997-01-27

    Applicant: BASF AG

    Inventor： MC KEE GRAHAM EDMUND DR ,  ROSENAU BERNHARD DR ,  GOERRISSEN HEINER DR ,  JAHNS EKKEHARD DR

    IPC: C08L25/02 ,  C08F2/18 ,  C08F2/22 ,  C08F265/04 ,  C08F279/02 ,  C08L25/12 ,  C08L51/00 ,  C08L51/04 ,  C08L25/06 ,  C08J5/00 ,  B29C47/02 ,  B29C47/36

    Abstract: The invention relates to thermoplastic moulding materials containing A) 30-98 wt.% of a thermoplastic polymer comprising, in relation to A), a1) 50-100 wt.% of a styrene compound of general formula (I), in which R and R stand for hydrogen or C1-C8-alkyl, or of a (C1-C8 alkyl) ester of acrylic acid or of methacrylic acid, or mixtures of the styrene compounds and the (C1-C8-alkyl) ester of acrylic acid or methacrylic acid, a2) 0-40 wt.% acrylonitrile or methacrylonitrile or their mixtures, and a3) 0-40 wt.% of one or several other monoethylene unsaturated monomers that are different from a2), B) 1-69 wt.% of a first particle-shaped rubber-elastic polymer B) with a particle diameter d50 of average weight of 300 nm or less, C) 1-69 wt.% of a second particle-shaped rubber-elastic polymer C) with an average-volume particle diameter d50 between 700 nm and 100 mu m, whereby the polymer C) is obtainable by the microsuspension polymerization method, by i) dispersion of the monomers corresponding to the polymer C) in water using at least one protective colloid to form a dispersion of droplets with an average-volume particle diameter d50 between 700 nm and 100 mu m, and (ii) polymerization of the droplets by means of a radical polymerization initiator, and D) 0-80 wt.% of one or several other polymers.

    18.
    发明专利
    未知

    公开(公告)号：DE19651300A1

    公开(公告)日：1998-06-18

    申请号：DE19651300

    申请日：1996-12-10

    Applicant: BASF AG

    Inventor： MC KEE GRAHAM EDMUND DR ,  JUENGLING STEPHAN DR ,  WARZELHAN VOLKER DR ,  GAUSEPOHL HERMANN DR

    IPC: C08L51/00 ,  C08F20/00 ,  C08F20/12 ,  C08F265/04 ,  C08F297/04 ,  C08L55/02

    Abstract: The invention concerns a process for preparing rubber-modified moulding compounds, characterized in that: a1) a mixture (A) comprising acrylate or methacrylate derivatives or acrylate and methacrylate derivatives and a solvent, optionally containing olefinically unsaturated compounds which are not acrylate or methacrylate derivatives, is anionically polymerized; or that a2) acrylate or methacrylate derivatives or acrylate and methacrylate derivatives are sequentially anionically polymerized to form block copolymers in the presence of a solvent which optionally contains olefinically unsaturated compounds; and b) the reaction mixture obtained according to a1) or a2) or a1) and a2) is subjected to a radically initiated polymerization process, optionally after the addition of further unsaturated compounds.

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