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    5.
    发明专利
    未知

    公开(公告)号：DE3584748D1

    公开(公告)日：1992-01-09

    申请号：DE3584748

    申请日：1985-08-30

    Applicant: BASF AG

    Inventor： LYNCH JOHN DR

    IPC: B41C1/18 ,  B41F13/10 ,  B41F13/11 ,  B41F27/00 ,  B41F27/12 ,  B41N6/00 ,  B41N6/02 ,  C08F2/46 ,  C09D5/34 ,  C09K3/10

    Abstract: Photocurable sealant for gaps formed between the ends of gravure printing plates on mounting on the cylinder consists of a homogeneous photopolymerisable mixt., which is free from solvent and fluid at room temp.. It contains (a) 10-90 wt.% hydrophilic, polar, photopolymerisable, ethylenically unsatd. low mol. cpd(s)., (b) 5-65 wt.% polymeric binder, which is compatible with (a) and resistant to solvents contg. toluene,petrol, ketones and/or esters, (c) 0.01-10 wt.% photopolymerisation initiator(s) and (d) 0-70 wt.% other additives.

    Graft copolymer production with minimal reactor coating
    10.
    发明专利
    Graft copolymer production with minimal reactor coating 未知

    公开(公告)号：DE19752394A1

    公开(公告)日：1999-05-20

    申请号：DE19752394

    申请日：1997-11-19

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT DR ,  SUTORIS HEINZ FRIEDRICH DR ,  FISCHER MICHAEL DR ,  LYNCH JOHN DR ,  BENEDIX FRANZ ,  BARGHOORN PETER DR

    IPC: C08F4/00 ,  C08F265/04 ,  C08F279/02 ,  C08F265/06

    Abstract: Graft copolymers are obtained by an aqueous- phase process in which polymerization of the rubber-elastic base is taken to completion and an N-oxyl radical compound of a sec. amine with no hydrogens on the alpha -carbon atom is added before and/or during polymerization of the grafted shell. A process for the production, in the aqueous phase, of graft copolymers (A) of (a1) 30-95 wt% rubber-elastic graft base derived from (a11) 50-100 wt% conjugated diene and (a12) 0-50 wt% other monounsaturated monomer(s) or from (a11 asterisk ) 50-100 wt% 1-10C alkyl acrylate, (a12 asterisk ) 0-10 wt% polyfunctional crosslinking monomer and (a13 asterisk ) 0-40 wt% other monounsaturated monomer(s) and (a2) 5-70 wt% grafted shell derived from (a21) 50-100 wt% styrene compound of formula (S): R , R = H or 1-8 C alkyl (a22) 0-40 wt% (meth)acrylonitrile and (a23) 0-40 wt% other monounsaturated monomer(s). In this process, polymerization of the base stage (a1) is taken to completion and then at least one N-oxyl radical compound of a sec. amine with no hydrogen atoms on the alpha -carbon atom is added before and/or during polymerization stage (a2). An Independent claim is also included for graft copolymers obtained by this process.

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