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    Production of alkali lactam solutions for polymerisation purposes
    273.
    发明专利
    Production of alkali lactam solutions for polymerisation purposes 未知

    公开(公告)号：GB1032294A

    公开(公告)日：1966-06-08

    申请号：GB1406363

    申请日：1963-04-09

    Applicant: BASF AG

    Inventor： BAYERLEIN FRIEDRICH ,  DACHS KARL ,  WILHELM HANS

    IPC: C07D201/14 ,  C08G69/18 ,  C08G69/20

    Abstract: Solid solutions of alkali metal lactams in lactams, wherein the lactam contains 4-12 carbon atoms, are made by heating an alkali metal alcoholate of an alcohol containing 1-3 carbon atoms with an amount of lactam to give the required concentration of the alkali metal lactam in lactam solution and evaporating the alcohol formed under reduced pressure by stirring the reaction mixture at temperatures below the polymerization temperature of the lactam. Suitable lactams are pyrrolidone, piperidone, oenantholactam, caprolactam, caprylolactam, laurolactam, b -methyl-e -amino-caprolactam and methylene-bis-caprolactam. The solid solutions are used as catalysts for the polymerization of lactams (see Division C3).ALSO:Solid solutions of an alkali metal lactam in the lactam, which are prepared by reacting an alkali metal alcoholate of an alcohol containing 1-3 carbon atoms with an amount of lactam necessary to achieve the desired concentration of alkali metal derivative in the lactam and evaporating off under reduced pressure the alcohol formed, are used as catalysts, either alone or with activators, for the polymerization of lactams. The alkali metal lactam solution is preferably added in amounts of 0.1 to 1.0% by weight of alkali metal with reference to the total weight of polyamide forming material. Activators which may be used are, e.g. acid chlorides or isocyanates, substituted ureas or methanes. Lactam derivatives which are used as catalysts are the potassium and sodium derivatives of lactams containing 4-12 carbon atoms in the ring, which may be substituted by alkyl or aryl groups, and lactams which are attached to a second lactam ring by an alkylene bridge, e.g. methylene-bis-caprolactam.

    Production of basic polyamides
    275.
    发明专利
    Production of basic polyamides 未知

    公开(公告)号：GB1027211A

    公开(公告)日：1966-04-27

    申请号：GB759363

    申请日：1963-02-26

    Applicant: BASF AG

    Inventor： BAYERLEIN FRIEDRICH ,  DACHS KARL ,  HARTMANN JOB-WERNER ,  LISSNER OSKAR ,  STEDEN FRANZ ,  WILHELM HANS

    IPC: C08G69/26 ,  C08L63/00 ,  C08L77/00

    Abstract: A process for the production of basic polyamides compatible with substances capable of being cured to plastics comprises reacting at a temperature of between 100 DEG and 350 DEG C., an o : o 1-octane and/or -nonane dicarboxylic acid which contains as a substituent an aliphatic hydrocarbon radical having at least 8 carbon atoms in a continuous chain with a mixture of (a) an aliphatic polyamine, and (b) an aromatic and/or araliphatic polyamine, said polyamines having at least two primary amino groups in a molar ratio of carboxylic acid to amine of 1 : 1.1 to 1:3. Mono- and other di-carboxylic acids, e.g. acetic, benzoic, stearic, adipic, glutaric, sebacic, a -methyl-glutaric, sebacic, isophthalic and terephthalic acid may be present in the reaction mixture. Specified polyamines are ethylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, decamethylene xylylene and o-, m- and p-phenylene diamine, 1 - amino - 9 - aminomethyloctadecane, 1-amino - 10 - aminomethyloctadecane, diaminocyclohexane, di-(aminomethyl) benzenes, 4 : 41-diamino - di - n - butyl ether, a - aminopyridine, polyamines of the formula H2N-(CH2)m-[NH-(CH2) m]n-NH2 where m is an integer from 2 to 6 and n is an integer from 1 to 4, diethylene triamine, triethylene tetramine, dipropylene triamine and tripropylene tetramine. Monoamines, e.g. ethylamine, stearylamine or aniline may also be present in the reaction mixtures. The products of the invention may be used for curing polyepoxides or precondensed phenol, urea or melamine-aldehyde resins.

    Coating compositions for paper
    276.
    发明专利
    Coating compositions for paper 未知

    公开(公告)号：GB1021887A

    公开(公告)日：1966-03-09

    申请号：GB4807262

    申请日：1962-12-20

    Applicant: BASF AG

    Inventor： BRUENING DIETHELM ,  WOLF HANS ,  KRAUSE HANS-JOACHIM ,  WILHELM HANS

    IPC: C08F2/24 ,  C08L31/02 ,  C08L33/08 ,  C08L89/00 ,  D21H19/58 ,  D21H19/60

    Abstract: Compositions for coating paper comprise an alkaline casein solution and a polymer dispersion obtained by emulsion polymerization of a mixture of 90 to 99.9 weight per cent of one or more water-insoluble saponifiable ethylenically unsaturated compounds and 10 to 0.1 weight per cent of one or more ethylenically unsaturated compounds which yield water-soluble polymers, at a pH of 3 to 6.5 in the presence of 0.3 to 5 weight per cent based on the monomers of one or more alkali metal or ammonium salts of sulphuric acid half esters of reaction products of ethylene oxide and/or propylene oxide with compounds containing hydroxyl, carboxyl, amide or imide groups, any adjustment of pH to a value above 6.5 being effected only after polymerization is completed. Specified watersoluble monomers are acrylic, methacrylic, maleic, fumaric, a -ethylacrylic, crotonic, a -chloracrylic and vinyl sulphonic acids, acrylamide, methacrylamide, vinyl lactams such as N-vinyl pyrrolidone, C-vinyl amines, N-vinyl amines and salts thereof. Specified saponifiable compounds are vinyl acetate, vinyl propionate, acrylic and methacrylic esters of alcohols containing 1 to 4 carbon atoms, maleic and itaconic esters and N,N-dibutylacrylamide. The monomer mixture may also comprise minor proportions of unsaponifiable compounds such as vinyl ethers, vinyl halides, vinylidene halides, butadiene, isoprene and styrene; and water soluble compounds which yield water-insoluble polymers, e.g. acrylonitrile, methacrylonitrile and acrolein. The emulsifiers may be derived from fatty alcohols, fatty acids, resin acids, amides and imides of carboxylic and sulphonic acids, alkyl phenols and alkyl naphthols, and may be used alone or together with other emulsifiers and stabilizers, e.g. alkali metal and ammonium salts of carboxylic and sulphonic acids or sulphuric acid half esters, polyvinyl alcohol, polyvinyl pyrrolidone and polyacrylamide. amide. The casein may be dissolved in aqueous ammonia, ethanolamine or caustic soda. The coating compositions may also contain soya bean meal, starches, water-soluble cellulose derivatives, dispersing agents, optical brighteners, dyes and pigments, e.g. kaolin, barium sulphate, calcium carbonate, titanium dioxide and calcium sulphoaluminate. Examples describe (1) the preparation of a dispersion by copolymerizing sodium vinyl sulphonate, acrylic acid, vinyl propionate and n-butyl acrylate in the presence of potassium persulphate and the sodium sulphate half ester of an ethylene oxide-iso-octylphenol condensate; and coating compositions comprising caustic soda solubilized casein, kaolin and aqueous dispersions prepared as in Example (1) of copolymers of sodium vinyl sulphonate and acrylic acid with (1) vinyl propionate and n-butyl acrylate, (2 and 3) vinyl propionate and (4) isobutyl acrylate and t.-butyl acrylate.ALSO:Paper may be coated with compositions comprising an alkaline casein solution and a polymer dispersion obtained by emulsion polymerization of a mixture of 90-99,9 weight per cent of one or more water-insoluble saponifiable ethylenically unsaturated compounds and 10-0,1 weight per cent of one or more ethylenically unsaturated compounds which yield water-soluble polymers, at a pH of 3-6,5 in the presence of 0,3-5 weight per cent based on the monomers of one or more alkali metal or ammonium salts of sulphuric acid half esters of reaction products of ethylene oxide and/or propylene oxide with compounds containing hydroxyl, carboxyl, amide or imide groups, any adjustment of pH to a value above 6,5 being effected after polymerization is completed. The compositions may also comprise soya bean meal, starches, water-soluble cellulose derivatives, dispersing agents, optical brighteners, dyes and pigments, e.g. kaolin, barium sulphate, calcium carbonate, titanium dioxide and calcium sulphoaluminate. Specified monomers yielding water-soluble polymers are acrylic, methacrylic, maleic, fumaric, a -ethyl acrylic, crotonic, a -chloracrylic and vinyl sulphonic acids, acrylamide, methacrylamide, N-vinyl pyrrolidone, C-vinyl pyridines, N-vinyl pyridines and salts thereof. Specified saponifiable compounds are vinyl acetate, vinyl propionate, acrylic and methacrylic esters of alcohols containing 1-4 carbon atoms, maleic and itaconic esters and N,N-dibutylacrylamide. The monomer mixture may also comprise minor proportions of unsaponifiable compounds such as vinyl ethers, vinyl halides, vinylidene halides, butadiene, isoprene and styrene; and water-soluble compounds yielding water-insoluble polymers, e.g. acrylonitrile, methacrylonitrile and acrolein. The casein may be dissolved in aqueous ammonia, ethanolamine or caustic soda. Examples describe the coating of paper with compositions comprising caustic soda solubilized casein, kaolin and dispersions of copolymers of sodium vinyl sulphonate and acrylic acid with (1) vinyl propionate and n-butyl acrylate, (2 and 3) vinyl propionate and (4) isobutyl acrylate and t.butyl acrylate, prepared in the presence of the sodium sulphate half ester of an isooctyl phenol-ethylene oxide condensate.

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