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    Stoving lacquers
    3.
    发明专利
    Stoving lacquers 未知

    公开(公告)号：GB1092545A

    公开(公告)日：1967-11-29

    申请号：GB830365

    申请日：1965-02-26

    Applicant: BASF AG

    Inventor： DAUMILLER GUENTHER ,  POHLEMANN HEINZ ,  SCHAUDER FRIEDRICH

    IPC: C08L61/04 ,  C09D133/08

    Abstract: A stoving lacquer contains (I) water, and (II) a mixture of (1) 65 to 75% by weight of at least one water-soluble salt of (a) at least one water-soluble volatile tertiary amine and (b) a copolymer comprising 82 to 88% isobutyl acrylate, 8 to 12% acrylic acid and 4 to 6% of N-(hydroxymethyl) methacrylamide, the sum of the percentages of these monomers being 100%, and (2) 35 to 25% of a water-soluble cocondensate of formaldehyde, a 1:3 to 1:6 by weight mixture of 2,2-bis-(p-hydroxyphenyl)-propane and phenol and, optionally, at least one alkanol having 1 to 4 carbon atoms. Suitable amines (a) are trimethylamine, tri-(b -hydroxyethyl) - amine, N,N - dimethyl - N - (b - hydroxypropyl) - amine, triethylamine and N,N - dimethyl - N - (b - hydroxyethyl) - amine. The lacquers may also contain organic solvents, e.g. monoalkyl ethers of diethylene and triethylene glycol, hexavalent chromium compounds, e.g. ammonium dichromate and pigments, e.g. TiO2. In examples, the lacquers are applied to sheet metal, exposed to air and stoved (see Division B2).ALSO:A stoving lacquer comprises (I) water and (II) a mixture of (1) 65 to 75% of at least one water soluble salt of (a) at least one water-soluble volatile tertiary amine and (b) a copolymer containing 82 to 88% isobutyl acrylate, 8 to 12% acrylic acid and 4 to 6% of N-(hydroxymethyl) methacrylamide and (2) 35 to 25% of a water soluble cocondensate of formaldehyde and a 1:3 to 1:6 mixture of 2, 2 bis - (p - hydroxyphenyl) - propane and phenol. Cocondensate (2) may also contain at least one alkanol having 1 to 4 carbon atoms. Suitable amines (a) are trimethylamine, tri-(b -hydroxyethyl)-amine, N, N-dimethyl-N-(b -hydroxyethyl)-amine, triethylamine and N, N-dimethyl-N- (b -hydroxypropyl)-amine. The lacquer may be applied to sheet metal e.g. by electrodeposition and stoved at 80 DEG to 180 DEG C.

    4.
    发明专利
    未知

    公开(公告)号：FR1470060A

    公开(公告)日：1967-02-17

    申请号：FR51079

    申请日：1966-02-25

    Applicant: BASF AG

    Inventor： SPOOR HERBERT ,  FLORUS GERHARD ,  POHLEMANN HEINZ ,  SCHAUDER FRIEDRICH

    IPC: C09D5/44

    Abstract: 1,132,267. Electrolytic coating compositions. BADISCHE ANILIN- & SODA-FABRIK A.G. 25 Feb., 1966 [27 Feb., 1965], No. 8333/66. Headings C3P and C3R. [Also in Division C7] Aqueous solutions or dispersions of salts of bakable basic nitrogen cationic polymers used for electrophoretic coating) comprise on a weight basis a copolymer derived from, (1) 3 to 30% of aminoalkyl acrylates and/or methacrylates; (2) 3 to 30% of amides, N-alkylamides, N- hydroxyalkylamides and/or N-oxaalkylamides of acrylic and/or methacrylic acid; (3) 40 to 94% of alkyl acrylates and/or methacrylates and/or styrene and/or alkylvinyl benzenes; and (4) 0 to 30% of other copolymerizable ethylenically unsaturated monomers. Component (4) may be, for example, an hydroxyalkyl acrylate or methacrylate, an aliphatic vinyl carboxylate ester, acrylonitrile, methacrylonitrile, or a trialkylammoniumalkyl acrylate or methacrylate salt. Other watersoluble or water-dispersible binders capable of electrophoretic co-deposition with the copolymer salts may be added in an amount of 10 to 70% of said salts by weight, e.g. aminoplasts, phenoplasts, epoxide resins, alkyd resins or mixtures thereof. In one example an 8% solids solution of pH 4À5 is obtained by diluting the copolymer salt solution obtained by adding acetic acid to a solution formed by solution polymerization of mono - (N,N - diethylamine) - ethyl methacrylate, N-2-oxa-4-methylpentylamide of methacrylic acid, and n- and tert-butyl acrylates in n-butanol and p-xylene. In another example acrylamide is used instead of the above amide and 4-hydroxybutyl acrylate is also included, together with TiO 2 pigment and a watersoluble melamine- or phenol-formaldehyde resin. A further example employs a copolymer derived from γ - (N :N - diethylamino) - propyl acrylate, 2 - oxapropylacrylamide, 2 - ethylhexyl methacrylate, styrene, p-vinyl toluene and acrylonitrile.

    Production of polymeric organic coatings by electrophoretic deposition
    5.
    发明专利
    Production of polymeric organic coatings by electrophoretic deposition 未知

    公开(公告)号：GB1132267A

    公开(公告)日：1968-10-30

    申请号：GB833366

    申请日：1966-02-25

    Applicant: BASF AG

    Inventor： SPOOR HERBERT ,  FLORUS GERHARD ,  POHLEMANN HEINZ ,  SCHAUDER FRIEDRICH

    IPC: C09D5/44

    Abstract: 1,132,267. Electrolytic coating compositions. BADISCHE ANILIN- & SODA-FABRIK A.G. 25 Feb., 1966 [27 Feb., 1965], No. 8333/66. Headings C3P and C3R. [Also in Division C7] Aqueous solutions or dispersions of salts of bakable basic nitrogen cationic polymers used for electrophoretic coating) comprise on a weight basis a copolymer derived from, (1) 3 to 30% of aminoalkyl acrylates and/or methacrylates; (2) 3 to 30% of amides, N-alkylamides, N- hydroxyalkylamides and/or N-oxaalkylamides of acrylic and/or methacrylic acid; (3) 40 to 94% of alkyl acrylates and/or methacrylates and/or styrene and/or alkylvinyl benzenes; and (4) 0 to 30% of other copolymerizable ethylenically unsaturated monomers. Component (4) may be, for example, an hydroxyalkyl acrylate or methacrylate, an aliphatic vinyl carboxylate ester, acrylonitrile, methacrylonitrile, or a trialkylammoniumalkyl acrylate or methacrylate salt. Other watersoluble or water-dispersible binders capable of electrophoretic co-deposition with the copolymer salts may be added in an amount of 10 to 70% of said salts by weight, e.g. aminoplasts, phenoplasts, epoxide resins, alkyd resins or mixtures thereof. In one example an 8% solids solution of pH 4À5 is obtained by diluting the copolymer salt solution obtained by adding acetic acid to a solution formed by solution polymerization of mono - (N,N - diethylamine) - ethyl methacrylate, N-2-oxa-4-methylpentylamide of methacrylic acid, and n- and tert-butyl acrylates in n-butanol and p-xylene. In another example acrylamide is used instead of the above amide and 4-hydroxybutyl acrylate is also included, together with TiO 2 pigment and a watersoluble melamine- or phenol-formaldehyde resin. A further example employs a copolymer derived from γ - (N :N - diethylamino) - propyl acrylate, 2 - oxapropylacrylamide, 2 - ethylhexyl methacrylate, styrene, p-vinyl toluene and acrylonitrile.

    Varnish resins from diureas, formaldehyde and alcohols
    7.
    发明专利
    Varnish resins from diureas, formaldehyde and alcohols 未知

    公开(公告)号：GB901679A

    公开(公告)日：1962-07-25

    申请号：GB3426460

    申请日：1960-10-06

    Applicant: BASF AG

    Inventor： POHLEMANN HEINZ ,  SCHAUDER FRIEDRICH ,  GERLICH HANS

    IPC: C08G12/10 ,  C08G12/42

    Abstract: Diureas are modified by heating until the molecular weight, calculated from the amount of ammonia liberated in the formation of biuret groups, has increased by at least 10% and are then reacted with formaldehyde and a monohydric aliphatic alcohol. The diureas are of the general formula H2N.CO.NH.R.NH.CO.NH2 where R is a divalent hydrocarbon radical, or a divalent aliphatic radical which contains one or two isolated nitrogen atoms in the chain. Solvents such as hydrocarbons and the ethers, half-ethers, esters and half-esters of glycols may be present during the condensation with the aldehyde and alcohol as may acid catalysts and modifying agents such as urea, thiourea, melamine or diaminotriazines. The solutions of the condensation products obtained may be used as varnishes, in conjunction with the usual hardening agents (e.g. alcoholic hydrochloric acid) and pigments such as rutile.

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