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    Curable polyester resins and cured shaped articles made therefrom
    4.
    发明专利
    Curable polyester resins and cured shaped articles made therefrom 未知

    公开(公告)号：GB1026975A

    公开(公告)日：1966-04-20

    申请号：GB696863

    申请日：1963-02-21

    Applicant: BASF AG

    Inventor： WILLERSINN HERBERT ,  HEEL HELMUT ,  ZIEGLER IRMGARD ,  ALLWINN ROLAND

    IPC: C08F283/01 ,  C08L67/00

    Abstract: Cured shaped articles may be produced by polymerizing (a) one or more resinous ethylenically unsaturated polymerizable polyesters containing radicals of one or more polybasic, particularly dibasic, carboxylic acids and of one or more polyhydric, particularly dihydric, alcohols, and if desired additionally radicals of one or more monobasic carboxylic acids and/or of one or more monohydric alcohols and/or of one or more hydroxycarboxylic acids, at least some of said radicals having ethylenically unsaturated polymerizable groups and (b) tertiary-butyl acrylate; if desired together with one or more other monomeric ethylenically unsaturated polymerizable compounds. The weight ratio of polyesters (a) to the monomers (b) is from 1:0.2 to 1:1.5 and the monomers (b) contain 1 to 100% by weight of tertiary-butyl acrylate. Lists of suitable polyester components are given but the polyesters employed in the examples are derived from maleic and phthalic anhydrides and propanediol-(1, 2). The polyester is mixed with hydroquine and tertiary butyl acrylate and then polymerized with cyclohexanone peroxide in dibutyl phthalate in the presence of cobalt naphthenate in styrene. Glass fibres, yarns, fabrics and powders may be used to reinforce the polyesters.

    Production of copolymers suitable as binders in coating compositions, as impregnants and as adhesives
    5.
    发明专利
    Production of copolymers suitable as binders in coating compositions, as impregnants and as adhesives 未知

    公开(公告)号：GB1137925A

    公开(公告)日：1968-12-27

    申请号：GB1550166

    申请日：1966-04-07

    Applicant: BASF AG

    Inventor： WILHELM HANS ,  MARX MATTHIAS ,  BRUNNMUELLER FRIEDRICH ,  ALLWINN ROLAND ,  VLACHOS ACHILLES ,  SANDER HANS ,  HARTMANN JOB-WERNER ,  BACHMANN RUDOLF

    IPC: C08F20/58 ,  C08F20/62 ,  C08F22/00

    Abstract: 1,137,925. Copolymers of etherified methylol- (meth)-acrylamide. BADISCHE ANILIN- & SODA-FABRIK A.G. 7 April, 1966 [10 April, 1965; 26 May, 1965], No. 15501/66. Heading C3P. In a multi-stage process for preparing derivatives of amide copolymers (A) 0À9-1À2 moles of (meth)-acrylamide, 0À9-1À2 moles of paraformaldehyde (calculated as monomer), at least 0À9 moles of an (oxa)-alkanol having up to 8 carbon atoms and 0À001-0À5 moles of a tertiary aliphatic or cycloaliphatic monoamine having up to 12 carbon atoms are reacted at 50-100‹ C.; (B) then at least 101 equivalent per cent, based on said monoamine, of an α,#-ethylenically unsaturated mono- or di-basic carboxylic acid and/or an (oxa)-alkyl half-ester of such a dibasic acid having up to 9 carbon atoms in the (oxa)-alkyl radical is added and the mixture kept at 80-140‹ C.; (C) then any remainder of the said carboxylic acid or half-ester, and an (oxa)-alkyl ester of (meth)-acrylic acid having up to 20 carbon atoms in the (oxa)-alkyl radical and/or an (alkyl)-vinyl benzene having up to 12 carbon atoms and, if desired, other comonomer are added and copolymerization is carried out using an aliphatic or cycloaliphatic azo compound or an organic peroxide having a half-life of 0À1-30 hours at 85-110‹ C. as polymerization initiator. Polymerization is generally effected in an organic solvent which may be an excess of the (oxa)-alkanol used in step (A) or benzene or an alkyl benzene. In step (A) an oxygen-containing atmosphere is used and in step (B) a polymerization inhibitor is desirably included, e.g. phenothiazine, hydroquinone, methylene blue, nitrosophenol or mdinitrobenzene. The initiator used in step (C) may be azodiisobutyronitrile, azodiisobutyramide, azodicyclohexylcarbonitrile, cumene hydroperoxide, dibenzoyl peroxide, dilauroyl peroxide, t - butyl permaleate, t - butyl hydroperoxide, 2,2 - bis - (t - butyl peroxy)- butane or t-butyl perbenzoate; the initiator may be added continuously during polymerization. A regulator, e.g. t-dodecyl mercaptan, may be included in the polymerization reaction. In the examples, the following monomers are used: acrylamide, maleic acid, acrylic acid, styrene, 1,4-butane-diol monoacrylate and also, in some cases, 2-ethyl hexyl acrylate; the (oxa)-alkanol being n-butanol and the amine being N,N - dimethyl - (# - hydroxyethyl)- amine. The polymers obtained in the invention are useful in coating compositions, stoving lacquers, impregnants and adhesives.

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