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    2.
    发明专利
    未知

    公开(公告)号：DE1131883B

    公开(公告)日：1962-06-20

    申请号：DEB0059664

    申请日：1960-10-07

    Applicant: BASF AG

    Inventor： CRAUBNER DR HANS ,  ILLING DR GERHARD

    IPC: C08G69/00 ,  C08G81/02 ,  C08L23/02 ,  C08L77/00

    Abstract: In a process for the production of block-graft polymers, a mixture of (a) one or more polyolefines or copolymers of olefines with other unsaturated monomers and (b) one or more synthetic linear polyamides is homogenized at a temperature between 50 DEG and 350 DEG C. with addition of 0,05 to 10% by weight, with reference to the total weight of the mixture of all components of a free radical-forming catalyst. Specified polyolefines are those derived from ethylene, propylene, styrene, iso-butylene, butene-1 and butene-2 and optionally butadiene, isoprene, acrylic acid, methacrylic acid, esters of acrylic and methacrylic acid, acrylonitrile, acrylamide, methacrylamide, vinyl chloride, vinylidene chloride, vinyl acetate, vinyl propionate, a -methyl styrene, vinyl toluenes and vinyl isobutyl ether. Specified catalysts are cumene hydroperoxide, dicumyl peroxide, t-butyl hydroperoxide, di-t-butyl peroxide, 2:5-di-t-butyl-peroxy-2:5-dimethyl hexane, dibenzoyl peroxide, lauroyl peroxide, t-butyl perbenzoate, azo-bis-iso-butyronitrile and azo disulphonates which may be dissolved in benzene, toluene, xylene, dioxane, cyclohexane, butanone, dimethyl formamide, carbon tetrachloride or tetrahydrofurane and hydrogen peroxide, sodium peroxide and ammonium persulphate. The examples describe the preparation of block-graft polymers from:-(1) polyethylene and poly-S -caprolactam; (2) polyethylene and polyhexamethylene adipamide; (3) polypropylene and poly-S -caprolactam; (4) polypropylene and poly-caprylic lactam; (5) polypropylene and polyhexamethylene adipamide; (6) polypropylene and polyhexamethylene sebacamide; (7) polystyrene, polyethylene and poly-S -caprolactam; (8) poly-iso-butylene, polyethylene and poly-S -caprolactam and (9) an acrylonitrilestyrene copolymer and poly-S -caprolactam.

    5.
    发明专利
    未知

    公开(公告)号：DE1111376B

    公开(公告)日：1961-07-20

    申请号：DEB0056501

    申请日：1960-02-03

    Applicant: BASF AG

    Inventor： ILLING DR GERHARD ,  STAHL DR HELMUT

    IPC: C08K3/00 ,  C08K3/10 ,  C08K3/32 ,  C08L77/00

    Abstract: A stabilized polyamide contains as stabilizers 0,5 to 2% by weight of hypophosphoric acid and/or a hypophosphate and 0,001 to 1% by weight of a water soluble cerium (III) salt and/or a water-soluble titanium (III) salt. Specified hydrophosphates are lithium, sodium, potassium, magnesium, calcium, barium, aluminium, cerium, thorium, copper, zinc, titanium, iron, nickel and cobalt hypophosphates. Specified water-soluble cerium (III) and titanium (III) salts are the chlorides, bromides, halides, sulphonates, formates and acetates. Specified polyamides are those derived from caprolactam, caprylic lactam, o -amino-undecanoic acid, the salts of adipic, suberic, sebacic or decamethylene dicarbonic acid with hexamethylene or decamethylene diamine, of heptane dicarboxylic acid with bis-(4-aminocyclohexyl)-methane, of tetramethylene diisocyanate and adipic acid and of aliphatic w-aminoalcohols and dicarboxylic acids each with 4 to 34 carbon atoms between the functional groups. The stabilizers may be added to the polyamides during or after the polycondensation reaction. Delustrants, e.g. cerium dioxide, titanium dioxide, thorium dioxide or ytrium trioxide may also be added to the polyamides. Examples (1) and (2) describe the polymerization of:-(1) hexamethylene diammonium adipate in the presence of disodium dihydrogen hypophosphate hexahydrate and (a) titanium (III) chloride hexahydrate, (b) cerium (III) chloride; (2) caprolactam in the presence of (a) thorium hypophosphate and titanium (III) chloride hexahydrate, whilst in Example (3) polycaprylic lactam is mixed with tetrasodium hypophosphate, titanium (III) acetate and titanium dioxide.

    7.
    发明专利
    未知

    公开(公告)号：DE1149531B

    公开(公告)日：1963-05-30

    申请号：DEB0062519

    申请日：1961-05-17

    Applicant: BASF AG

    Inventor： ILLING DR GERHARD ,  LINGE DR HERMANN ,  SCHOEFFEL RICHARD

    IPC: C08K5/14

    Abstract: In a process for the production of cross-linked polyamides, at least one molten linear high molecular weight polyamide having a K value between 65 and 100 is kneaded with an addition of 0.1 to 2% by weight of an organic free radical-forming catalyst based on the total weight of the mixture. Specified polyamides are those derived from lactams with from six to twelve ring carbon atoms and dicarboxylic acids and diamines with four to eighteen carbon atoms between the functional groups. Specified catalysts are azo-bis-isobutyronitrile, azo-disulphonates, cumene hydroperoxide, t-butyl hydroperoxide, di-t-butyl peroxide, 2:5-di-t-butyl-2:5-dimethyl hexane, lauroyl peroxide, cyclohexanone peroxide, benzoyl peroxide, peracetic acid, perbenzoic acid, dicumyl peroxide, 3-butyl-4-methyl-4-hydroperoxy-5-dimethyl oxazolidone-2 and the mono-t-butyl ester of diperoxy maleic acid. Pigments, stabilizers, lubricants, mould release agents and low molecular weight polyamides e.g. di-, tri- and tetrameric e -caprolactam may be present in the reaction mixtures. In the examples, cross-linked polyamides are made from:-(1) poly-e -caprolactam and a copolymer of e -caprolactam and hexamethylene adipamide in the presence of di-t-butyl peroxide; (2) poly-e -caprolactam in the presence of cumene hydroperoxide; (3) poly-e -caprolactam and polyethylene diamine oxalate in the presence of di-t-butyl peroxide, calcium stearate and di-iso-octyl adipate; (4) polyhexamethylene adipamide and polyethylene diamine oxalate in the presence of di-t-butyl peroxide; (5) poly-e -caprolactam and a copolyamide derived from the adipic acid salts of hexamethylene diamine and 4:41-diaminodicyclohexyl methane in the presence of 3-butyl-4-methyl-4-hydroperoxy-5-dimethyl oxazolidone-2 and in (b) with a low molecular polyamide derived from ethylene diamine and oxalic acid (nylon-2:2) and (6) polycaprylactam in the presence of calcium stearate, diisocyl adipate and (a), (d) and (e) di-t-butyl peroxide and nylon-2:2; (b) 3-butyl-4-methyl-4-hydroperoxy-5-dimethyl ox-azolidone-2 and nylon-2:2; (c) di-t-butyl peroxide; (f) the mono-t-butyl ester of diperoxy-maleic acid and a mixture of di-, tri- and tetrameric e -caprolactam and (g) di-t-butyl peroxide and a mixture of di-, tri- and tetrameric caprolactam.

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