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    Continuous production of ethylenically unsaturated polymerisable polyesters
    33.
    发明专利
    Continuous production of ethylenically unsaturated polymerisable polyesters 未知

    公开(公告)号：GB1097984A

    公开(公告)日：1968-01-03

    申请号：GB1891465

    申请日：1965-05-05

    Applicant: BASF AG

    Inventor： SUTER HUBERT ,  POEHLER GUENTER ,  MARTIN KARL ,  BRUNNMUELLER FRIEDRICH

    IPC: C08G63/00 ,  C08F283/01 ,  C08G63/52 ,  C08G63/54

    Abstract: An ethylenically unsaturated polyester is prepared by passing substantially stoichiometric amounts of (a) at least one dibasic carboxylic acid or anhydride, of which at least a part is unsaturated, (b) at least one dihydric alcohol and optionally (c) minor amounts of (c1) mono- or tri- or higher carboxylic acids and/or (c2) mono- or tri- or higher hydric alcohols, and/or (c3) hydroxy-carboxylic acids, continuously through 3 or 4 stirred vessels in series, the temperatures of the first and last vessels being 120-190 DEG C. and 195-240 DEG C. respectively, the temperature(s) of the intermediate vessel(s) being higher than that of the first vessel and below that of the last. The pressure in the last 1 or 2 vessel(s) is preferably 20-200 mm. Hg., in the first 500-900 mm. Hg. The mean residence time in each vessel is preferably 1-7 hours, and each vessel is preferably 70-80% full of reaction material, an inert gas occupying the remaining volume. Suitable starting materials are (a) maleic, fumaric, o-, m- and p-phthalic, and 1,2,3,6-tetrahydrophthalic acids, 3,6 - endomethylene - 1,2,3,6 - tetrahydrophthalic acid, succinic, adipic, and sebacic acids or anhydrides, (b) ethylene and propylene glycols, trimethylene-, tetramethylene- and hexamethylene glycols, neopentyl glycol, and 2,2,4 - trimethylpentanediol - 1,4, (c1) benzoic, trimellitic, pyromellitic acids, (c2) octanol, decanol, glycerol, pentaerythritol, and (c3) 3-methylol-cyclohexane carboxylic acid. In an example, maleic and phthalic anhydrides are condensed with propylene glycol in three vessels.

    Stoving lacquers
    34.
    发明专利
    Stoving lacquers 未知

    公开(公告)号：GB1089461A

    公开(公告)日：1967-11-01

    申请号：GB612565

    申请日：1965-02-12

    Applicant: BASF AG

    Inventor： BRUNMUELLER FRIEDRICH ,  SUTER HUBERT ,  SANDER HANS

    IPC: C08G63/553 ,  C09D167/08

    Abstract: A stoving lacquer comprises at least one organic solvent and a mixture consisting of (i) at least 30 wt. per cent of an alkyd resin from (a) a C8- 20 aliphatic monocarboxylic acid; (b) a mixture of C4- 14 polycarboxylic acids, 2 to 30% being 3,6 - endoethenylenecyclohexane - 1,2,4,5-tetra-carboxylic acid; and (c) a C2- 10 polyol, and (ii) up to 70% of an "aminoplast resin." The term "aminoplast resin" is defined as including copolymers of N-alkoxymethyl amides of ethylenically unsaturated carboxylic acids as well as the conventional etherified urea or melamine-formaldehyde condensates but no specific example of the use of such copolymers is given. The lacquers may include curing catalysts, flow promoters and other binders, e.g. epoxy resins. In the example the solvent is xylene and TiO2 pigment is included.ALSO:A stoving lacquer comprises at least one organic solvent and a mixture consisting of (i) at least 30 wt. % of an alkyd resin from (a) a C8-20 aliphatic monocarboxylic acid; (b) a mixture of C4-14 polycarboxylic acids, 2 to 30% being 3,6-endoethenylenecyclohexane-1,2,4,5-tetracarboxylic acid; and (c) a C2-10 polyol, and (ii) up to 70% of an "aminoplast resin". The term "aminoplast resin" is defined as including copolymers of N-alkoxymethyl amides of ethylenically unsaturated carboxylic acids as well as the conventional etherified urea- or melamine-formaldehyde condensates but no specific Examples of the use of such copolymers is given. The lacquers may include curing catalysts, flow promoters and other binders, e.g. epoxy rosins. They may be used to lacquer metals, e.g. sheet metals, and may be stoved at 80 to 180 DEG C. In the Example the solvent is xylene and TiO2 pigment is included; the lacquer is sprayed onto degreased and derusted iron sheets.

    Production of bicyclic carboxylic acid derivatives
    35.
    发明专利
    Production of bicyclic carboxylic acid derivatives 未知

    公开(公告)号：GB1070866A

    公开(公告)日：1967-06-07

    申请号：GB3297264

    申请日：1964-08-13

    Applicant: BASF AG

    Inventor： SUTER HUBERT ,  BRUNNMUELLER FRIEDRICH

    IPC: C08G59/42 ,  C08G63/553

    Abstract: In a process for the production of bicylic carboxylic acid derivatives trans - cyclohexadiene -(3,5) - dicarboxylic acid - (1,2) is reacted at elevated temperature with a dienophilic compound in the presence of an anhydride of an aliphatic carboxylic acid containing two to six carbon atoms. In examples: the dimer of cyclohexadiene-(3,5)-trans-dicarboxylic acid (1,2)-anhydride is obtained by heating the monomer with acetic anhydride or propionic anhydride (1); bicyclo-(2,2,2)-7-octene-2,3,5-tricarboxylic acid anhydride is obtained by heating cyclohexadiene-(3,5)-GAMMA-trans - dicarboxylic acid - (1,2), acrylic acid and acetic anhydride (2); bicyclo - (2,2,2) - 7 - octene - 5 - carbobutoxy - 2,3 - dicarboxylic anydride is obtained in a similar process using butyl acrylate instead of acrylic acid and other acrylic esters including the methanol, ethanol 2-ethyl-hexanol and lauryl alcohol esters are specified (3); bicylo-(2,2,2)- 7 - octene-5-cyano2,3-dicarboxylic acid is obtained similarly using acrylonitrile instead of acrylic acid (4); and bicyclo - (2,2,2) - 7 - octene - 2,3,5,6-tetracarboxylic acid anhydride is obtained similarly using maleic anhydride instead of acrylic acid.

    38.
    发明专利
    未知

    公开(公告)号：DE1115240B

    公开(公告)日：1961-10-19

    申请号：DEB0048357

    申请日：1958-03-28

    Applicant: BASF AG

    Inventor： REICHENEDER FRANZ ,  SUTER HUBERT ,  DURY KARL ,  WILLERSINN CARL-HEINZ

    IPC: B01J31/08 ,  B01J31/10 ,  C07C67/03

    Abstract: Esters of propionylacrylic acid are prepared by reacting methylprotoanemonin with an alcohol at normal or elevated temperature under anhydrous conditions using an acid ion-exchanger as catalyst. The alcohol may be aliphatic, particularly C1-4 primary and secondary alcohols, cycloaliphatic or aromatic or may be a glycol monoether or a polyhydric alcohol such as a glycol. The ion-exchanger may contain carboxylic or sulphonic acid groups, specifically sulphurised polystyrene. The temperature is preferably about 10 DEG C. below the boiling point of the alcohol at the pressure used. Specified temperatures are 15 DEG -120 DEG C., preferably 50 DEG -90 DEG C. with pressures of 1 to 50 atmos. The mol ratio of methylprotoanemonin to alcohol may vary from 1 : 5 to about 1 : 50. The process may be operated batchwise or continuously.

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