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    Improvements in the stabilisation of polymerisable compounds
    121.
    发明专利
    Improvements in the stabilisation of polymerisable compounds 未知

    公开(公告)号：GB846239A

    公开(公告)日：1960-08-31

    申请号：GB556559

    申请日：1959-02-18

    Applicant: BASF AG

    Inventor： WILHELM HANS ,  METZGER HORST ,  DACHS KARL

    IPC: C07C51/50 ,  C07C233/09 ,  C08F2/00 ,  C08F2/38 ,  C08F20/10 ,  C08L23/02 ,  C08L67/06 ,  C09K15/20 ,  C10G29/22

    Abstract: Polymerisable ethylenicallyunsaturated compounds are stabilised by means of N-substituted N-nitrosohydroxylamines of formula:- where R is a C1 - 18 aliphatic, cycloaliphatic o araliphatic radical and X is hydrogen, a metal or an ammonium (including organic ammonium) radical. R may be substituted, e.g. by halogen, methylol or cyano groups. Polymerisable compounds which may be stabilised include basic monomers such as vinylpyridines, vinylimidazole and vinylquinolines, C-vinyl aromatic compounds, vinyl halides, and unsaturated carboxylic acids and esters, amides, salts or nitriles thereof. The stabilisers may be used with the pure monomers or their aqueous or organic solutions, emulsions and suspensions. They may be present during the preparation of the monomers.

    Photomechanical production of printing plates
    127.
    发明专利
    Photomechanical production of printing plates 未知

    公开(公告)号：GB1147776A

    公开(公告)日：1969-04-10

    申请号：GB3475966

    申请日：1966-08-03

    Applicant: BASF AG

    Inventor： WILHELM HANS ,  HENKLER HERBERT ,  FLOSS JOSEF GEORG

    IPC: C08G69/48 ,  C08L77/00 ,  G03F7/037

    Abstract: 1,147,776. Photographic processes. BADISCHE ANILIN - & SODA - FABRIK A. G. Aug. 3, 1966 [Aug. 4, 1965], No.34759/66. Heading G2C. Printing plates are produced by imagewise exposing a material containing 40-99% by weight of a polyamide and 60-1% of a compound containing at least one photo-polymerizable double bond and at least one hydrogen capable of reacting with an isocyanate, treating the exposed material with a polyisocyanate and then removing the unexposed areas. Specified compounds are acrylamides and methacrylamides, partial esters of glycols with acrylic or methacrylic acid and hydroxy- or aminostyrenes. The polyisocyanate may be hexamethylene-, p-phenylene, 2, 5 or 2, 6-toluene -, or 1 5-naphthalene-di-isocyanate, 4, 4', 4" triphenylmethane tri-isocyanate or tri-methylolpropane/2, 4-toluene di-isocyanate addition product. The material may also contain a thermal polymerization inhibitor and photo-initiator.

    Production of coloured synthetic polymer coatings on metallic surfaces by electrodeposition
    128.
    发明专利
    Production of coloured synthetic polymer coatings on metallic surfaces by electrodeposition 未知

    公开(公告)号：GB1146700A

    公开(公告)日：1969-03-26

    申请号：GB2231166

    申请日：1966-05-19

    Applicant: BASF AG

    Inventor： WILHELM HANS ,  GULBINS KLAUS ,  MARX MATTHIAS ,  LANGE GUENTER

    IPC: C09D5/44 ,  C09D133/06

    Abstract: 1,146,700. Electrochemical coating compositions containing coloured copolymers. BADISCHE ANILIN- & SODA-FABRIK A.G. 19 May, 1966 [20 May, 1965], No. 22311/66. Heading C3P. [Also in Division C7] A coloured synthetic polymer coating is formed on a metal surface by anodic deposition from an aqueous solution or dispersion of an anionic polymer followed by stoving, the polymer containing copolymerized units comprising by weight 100 parts total provided by (a) 10 to 70 parts of an ester of acrylic and/or methacrylic acid with a C 1 to C 20 monohydric alcohol; (b) 2 to 15 parts of an α-ethylenically unsaturated C 3 to C 8 carboxylic acid, at least half of the acid groups being in an amine or ammonium salt form; (c) 1 to 25 parts of an ethylenically unsaturated monomer having a chromophore group and containing the skeleton of an azo or anthraquinone dye; and (d) 0À5 to 40 parts of N-methylolacrylamide and/or N-methylolmethacrylamide and/ or an ether of one of these with a C 1 to C 10 monhydric alcohol and/or 0À5 to 20 parts of an ethylenically unsaturated alcoholic hydroxy compound bearing no amido groups, with or without one or more other ethylenically unsaturated monomers, the total amount of (d) being 0À5 to 60 parts. Numerous examples of suitable components are referred to. In particular reference is made to for (a) alkyl esters; for (b) acrylic, methacrylic, maleic and fumaric acids; for (c) derivatives of acrylamide, ethyl acrylate and vinyl-sulphonamide; and for (d) C 1 to C 10 alkyl ethers of the two specified N-methylol amides, amido groupfree C 3 to C 20 ethylenically unsaturated alcoholic hydroxy compounds such as hemiesters of acrylic acid and/or methacrylic acid with alkane diols, allyl alcohol, monovinyl ethers of diols such as ethanediol and butane-1:4-diol, hydroxy derivatives of bicyclo-[2:2:1]-heptene- 2, up to 45 parts styrene, up to 15 parts C 1 to C 4 dialkyl esters of maleic and fumaric acids, up to 20 parts vinyl esters, e.g. of acetic and propionic acids, up to 12 parts acrylonitrile and/or methacrylonitrile, up to 20 parts acrylamide and/or methacrylamide, and up to 30 parts of derivatives of urea and triazine such as N-acryloylurea and N-acryloylmelamine. Other water-soluble or water-dispersable binders such as aminoplasts, phenoplasts, epoxy resins and alkyd resins may be included in the solution or dispersion in amounts up to the weight of the salt of the copolymer, the water content being 20 to 95% by weight. Pigments, antifoaming agents, flow assistants and other coating agents may also be present. A coating composition suitable for production of a stoved coating on a sheet steel car body part comprises a dispersion in water of a xylene solution of a copolymer formed from (a) Z-ethylhexyl acrylate, (b) acrylic acid, (c) 4-(N-ethyl-N-acryloyloxyethyl)- amino-azobenzene, and (d) n-butylether of N- methylolmethacrylamide, 4 - hydroxybutyl acrylate and styrene, the copolymer being partially neutralized with N:N-dimethyl.N-(#- hydroxyethyl)-amine and may optionally contain rutile TiO 2 . The coating can be stoved by heating at 130-250‹ C.

    Production of polyamide moldings
    130.
    发明专利
    Production of polyamide moldings 未知

    公开(公告)号：GB1116068A

    公开(公告)日：1968-06-06

    申请号：GB4272265

    申请日：1965-10-08

    Applicant: BASF AG

    Inventor： DACHS KARL ,  WILHELM HANS

    IPC: B29C39/00 ,  B29C41/00 ,  B29C41/04 ,  C08G69/18 ,  C08J9/04

    Abstract: A polyamide is produced by subjecting a lactam to activated anionic polymerization in a mould in the presence of an epoxide. Suitable epoxides are e.g. butylene-1:2-oxide, butadiene monoxide, cyclooctene oxide and phenyldeca-triene-1:4:8-monoxide, and they may contain neutral-reacting groups, e.g. -CN, -CO.O-, phenoxy, ether, thio-ether and amino groups and dibutylamino- or butylthio-groups. Particularly suitable are compounds having 2-6 epoxy groups, e.g. wherein R is a C2- 14 hydrocarbon group, wherein R is a hydrocarbon group and R1 is an aliphati C1- 6 hydrocarbon group, wherein R is a hydrocarbon group and wherein R is a hydrocarbon group. They are used in amounts of 0.05-30 wt. per cent of the lactam. Polyepoxide precondensates still containing epoxy groups are also suitable. Suitable lactams are caprolactam, enantholactam, capryllactam, capric lactam, laurolactam and C-substituted derivatives of these, e.g. 3-methylcaprolactam and 4-isopropylcaprolactam. Suitable anionic catalysts are alkali and alkaline earth metals, hydrides and hydroxides of these, sodium or potassium alcoholates, and Grignard compounds, and also alkali or alkaline earth metal derivatives of lactams. Amounts of 0.01-5% of the weight of lactam may be used of these. Suitable activators are organic acid halides, anhydrides, esters, and nitriles and also isocyanates and carbodiimides and urea derivatives, e.g. pyrrolidone-N-(carboxylic acid)-hexamethylene diamide-1:6 and triphenylmethane-4:41:411 - triscarbamidocaprolactam, and N-substituted carbamic esters and bisisoalkyl-urethanes. These may amount to 0.05-10 wt. per cent of the lactam. Conventional additives may be present, and expanding agents, e.g. cyclohexane, gasoline or gas-forming compounds, if it is desired to prepare a foam. In the example e -caprolactam is polymerized in the presence of Na-e -caprolactam, pentaery-thritol triglycidyl ether, CaSO4. 1/2 H2O and a petroleum ether/gasoline mixture. The mould is preferably heated to 80-200 DEG C. before addition of the lactam melt.

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