PROCESS FOR PRODUCING HYDROGEN PEROXIDE, C1 TO C4 MONOPERCARBOXYLIC ACID AND C4 TO C18 DIPERCARBOXYLIC ACID COMPLEXES BY THE FLUIDISED BED PROCESS

    公开(公告)号:CA2179663A1

    公开(公告)日:1995-06-29

    申请号:CA2179663

    申请日:1994-12-10

    Applicant: BASF AG

    Abstract: The production of hydrogen peroxide, C1 to C4 monopercarboxylic acid and C4 to C18 dipercarboxylic acid complexes by the fluidised bed process by the addition of a solution of hydrogen peroxide, C1 to C4 monopercarboxylic acid, C4 to C18 dipercarboxylic acid or a mixture thereof in water or carboxylic acids to a powdered or pregranulated matrix in or outside the fluidised bed and simultaneously or successively drying of the fluidised bed, in which use is made as a matrix of: A) N-vinyl caprolactam homopolymer, B) N-vinyl caprolactam copolymers with N-vinyl pyrrolidone, N-vinyl imidazole, acryl or methacryl amidopropyl-3-sulphonic acid, acrylic or methacrylic acid or mixtures thereof as comonomers in the proportion by weight of N-vinyl caprolactam to comonomers of 20:1 to 1:20, C) N-vinyl pyrrolidone copolymer with N-vinyl imidazole, acrylic or methacrylic acid or mixtures thereof as comonomers in the proportion by weight of N-vinyl pyrrolidone to comonomers of 20:1 to 1:20, D) N-vinyl imidazole homopolymers which may be substituted in the heterocyclic ring by up to three C1 to C4 alkyl radicals and may be present in C1 to C4 alkyl N-quaternised form, E) mixtures of monosaccharides, oligosaccharides, polysaccharides or derivatives thereof with the polymers A to D in the proportion by weight of 1:99 to 90:10, F) mixtures of monosaccharides, oligosaccharides, starches, starch decomposition products or derivatives thereof with N-vinyl pyrrolidone homopolymers in the proportion by weight of 1:99 to 90:10, G) mixtures of trehalose, saccharose, glucose, .alpha. or .beta. or .gamma. cyclodextrins or derivatives of said cyclodextrins or mixtures thereof with polymers A to D or with N-vinyl pyrrolidone homopolymers in the proportion by weight of 1:99 to 100:0 or H) in the case of C1 to C4 monopercarboxylic acid and C4 to C18 dipercarboxylic acid complexes, N-vinyl pyrrolidone homopolymers.

    153.
    发明专利
    未知

    公开(公告)号:MX9304658A

    公开(公告)日:1994-02-28

    申请号:MX9304658

    申请日:1993-08-02

    Applicant: BASF AG

    Abstract: Preparations in solid particle form containing active compounds, obtainable by intimate mixing of the active compound with a water-soluble melt of a) 10 to 90% by weight of a water-soluble polymer A of a viscosity Va of 1,000 to 120,000 cps and b) 10 to 90% by weight of a water-soluble polymer B of a viscosity Vb of 1 to 500 cps as a carrier substance, the viscosities Va and Vb being those of a 2% strength by weight aqueous solution at 20@C, measured by the capillary method ASTM D 2363-72 (European Pharmacopoeia, Vol. III, p. 37), and processing of the melt with shaping to give the particles.

    DRY FILM RESIST AND PRODUCTION OF RESIST IMAGES

    公开(公告)号:CA1259218A

    公开(公告)日:1989-09-12

    申请号:CA498088

    申请日:1985-12-19

    Applicant: BASF AG

    Abstract: In dry film resists possessing a solid photopolymerizable resist layer, which is applied on a temporary base and can be developed with aqueous, in particular aqueous alkaline, media, and, if required, a cover sheet on the resist layer, the said resist layer is built from a homogeneous mixture of a) not less than 40% by weight of one or more oligomers which contain free carboxyl groups and more than two acryloyl and/or methacryloyl groups and are soluble or dispersible in aqueous alkaline solutions, b) from 1 to 35% by weight of one or more film-forming compatible polymers which are soluble in aqueous media, c) from 1 to 30% by weight of one or more compatible photopolymerizable monomers, d) from 0.001 to 10% by weight of one or more photoinitiators and e) from 0 to 30% by weight of further additives and/or assistants. Resist images are produced on a substrate by a process employing photopolymerizable resist layers of the type stated above.

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