37.
    发明专利
    未知

    公开(公告)号:DE1522463A1

    公开(公告)日:1969-07-24

    申请号:DEB0086310

    申请日:1966-03-22

    Applicant: BASF AG

    Abstract: 1,173,043. Photo-polymerizable processes for producing printing plates. BADISCHE ANILIN- & SODA FABRIK A.G. March 21, 1967 [March 22, 1966], No.13169/67. Heading G2C. Printing plates are produced by imagewise exposing a material which contains 30 to 75% of a synthetic polyamide and 70 to 25% of a photopolymerizable composition comprising a monomer containing at least two polymerizable carbon to carbon double bonds or a mixture of monomers at least one of which has two polymerizable double bonds, and the monomer or one of the monomers having at least one double bond and an alcoholetherified N-methylolamide group, a photoinitiator and/or a thermal polymerization inhibitor and developing by removing the unexposed areas with a solvent. The specified photo-polymerizable compounds are the N-methylolacrylamide bis-ether of ethylene glycol and the alkyl ether of N-methylolacrylamide. Preferred N-methylol ethers are N-methylol ethers of compounds of following formulae:- wherein R 1 is alkylene with up to six carbon atoms and R 2 is hydrogen or methyl.

    40.
    发明专利
    未知

    公开(公告)号:DE1495147A1

    公开(公告)日:1969-01-30

    申请号:DE1495147

    申请日:1963-10-18

    Applicant: BASF AG

    Abstract: Laurolactam is polymerized by heat in the presence of (a) an oxyacid of phosphorus or a derivative thereof and (b) a mono- or dicarboxylic acid. Oxyacids and their derivatives specified ar phosphorous, phosphoric and hypophosphorous acids and their alkali metal and alkaline earth metal salts, anhydrides, C1- 5 alkyl esters, e.g. tri-methyl, ehthyl, propyl, butyl and pentyl, and halides, e.g. PCl3, PCl3 and PCl5 and polyacids derived therefrom. 0.001-3 mole per cent may be used. Carboxylic acids specified are: caproic, caprylic, capric, lauric, stearic, adipic, sebacic and mixtures thereof. 0.01-5 mole per cent may be used. The reaction may b continuous or batchwise at above 270 DEG C. and 1-25 atmospheres pressure. 5-50 mole per cent of water may be present and an inert atmosphere, e.g. N2, may be used. The product may be made into gears, bushes, screws, sheeting, coating powders, bristles, threads and filaments.

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