CONTINUOUS PREPARATION OF RUBBER-MODIFIED POLYMERS OF VINYL-AROMATICS USING A PER-ESTER OR DIACYL PEROXIDE INITIATOR

    公开(公告)号:CA1175592A

    公开(公告)日:1984-10-02

    申请号:CA383857

    申请日:1981-08-13

    Applicant: BASF AG

    Abstract: A process for the continuous preparation of rubber-modified polymers of vinylaromatics, wherein a mixture which contains a monomeric aromatic vinyl compound and an elastomeric polymer synthesized predominantly from 1,3-dienes is reacted in the presence of from 0.5 x 10-2 to 5 x 10-2 mole %, based on monomer, of a per-ester or diacyl peroxide as the free radical initiator and of a mercaptan as a chain transfer agent, the molar ratio of free radical initiator to chain transfer agent being from 3.4 to 0.1. The reaction takes place at an elevated temperature, in two or more process stages, under conditions such that the intrinsic viscosity (determined in 0.5% strength by weight solution in toluene at 23.degree.C) of the matrix-forming polymer, produced from the vinyl-aromatic monomer, is from 65 to 45 ml/g. The polymer obtained is freed from vinyl-aromatic monomer and from solvent, is any, in a devolatilization zone and is used for the production of injection moldings.

    Production of alcohols
    6.
    发明专利

    公开(公告)号:GB922374A

    公开(公告)日:1963-03-27

    申请号:GB820761

    申请日:1961-03-07

    Applicant: BASF AG

    Abstract: Catalysts used for the reaction between olefines, carbon monoxide and water to produce alcohols comprise an iron carbonyl, preferably iron pentacarbonyl, an amine, preferably a tertiary amine such as N-n-butylpyrrolidine, water and an optionally substituted ether, thioether, nitrile, lactam, carboxylic acid amide, a compound containing a sulphoxide group or two or more of such compounds. The additives are preferably present in an amount of 1-20% by weight based on the total weight of the three components forming the catalyst.ALSO:Alcohols having 3-7 carbon atoms are obtained from olefines having 2-6 carbon atoms, carbon monoxide and water at a temperature of 60-130 DEG C. in the presence of a complex catalyst consisting of iron carbonyl, an amine and water and an optionally substituted ether, thioether, nitrile, lactam, carboxylic acid amide, a compound containing a sulphoxide group or two or more of such compounds. The amine is preferably a tertiary one, e.g. N-n-butyl pyrrolidine. Among suitable additives specified are those of formula R1XR2, in which X is oxygen or sulphur and R1 and R2 are aliphatic, cycloaliphatic, araliphatic or aromatic radicals containing 1-12 carbon atoms substituted, for example, by esterified carboxylic groups, etherified hydroxy groups, esterified hydroxy groups, carboxylic groups, hydroxy groups and nitrile groups, and compounds of formula R3COYR4, in which Y is oxygen or a group NR5 in which R5 is hydrogen, an aliphatic, cycloaliphatic, araliphatic or aromatic radical both hetero atoms being members of a heterocyclic ring having 5-13 atoms as ring members and R3 and R4 together represent a polymethylene radical with 3-11 carbon atoms which together with -CO-Y- form a heterocyclic ring having 5-13 ring members. Suitable compounds of formula R3COYR4 are, for example, pyrrolidone, caprolactam, caprylic lactam, lauric lactam, N-methylpyrrolidone, and N-butylcaprolactam. Other suitable additives are N-mono- and N-disubstituted carbonamides, e.g. dimethyl and diethyl formamide, N.N-dimethyl acetamide, N.N-diethylbutyramide and benzoic and dimethyl amide. The additives are usually present in an amount of 1-20% by weight based on the total of the three components forming the catalyst and may be added during or after the formation of the catalyst. In the examples propylene is reacted with carbon monoxide and water in the presence of a catalyst comprising iron pentacarbonyl, N-butyl pyrrolidine and various additives as specified above to give a mixture of butanols. Specification 704,136 is referred to.

    GRAFTED STYRENE-ACRYLIC POLYMERS
    8.
    发明专利

    公开(公告)号:AU532316B2

    公开(公告)日:1983-09-22

    申请号:AU6452680

    申请日:1980-11-19

    Applicant: BASF AG

    Abstract: Thermoplastic molding materials which contain a copolymer which has been made impact-resistant with a rubber. The copolymer is produced by polymerizing a mixture of a monovinyl-aromatic compound and an acrylic acid derivative or methacrylic acid derivative in the presence of a rubber. The folding materials contain a specific proportion of soft component. The diameter of the particles of the soft component, and the swelling index of the soft component, lie within a specific range, and the tensile strength of the molding material is higher than the yield strength.

    10.
    发明专利
    未知

    公开(公告)号:FI903294A0

    公开(公告)日:1990-06-29

    申请号:FI903294

    申请日:1990-06-29

    Applicant: BASF AG

    Inventor: JENNE HELMUT

    Abstract: The heat-sealable plastic film is produced by coextrusion or lamination from two layers A and C and optionally a layer B and optionally a layer of an adhesion promoter for bonding in each case two of the layers A or B and C (where the sum of the thicknesses or of the weight of A or B and C is in each case 100) and comprises from 1 to 50% of a layer of a heat-sealable, high-impact polystyrene A, up to 95% of a base layer B and from 1 to 99% by weight of a high-melting plastic layer C.

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