中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

29 records (took 0.021 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE3230301A1

    公开(公告)日：1984-02-16

    申请号：DE3230301

    申请日：1982-08-14

    Applicant: HOECHST AG

    Inventor： FISCHER EDGAR DR ,  SCHLINGMANN MERTEN DR

    IPC: C08B37/00 ,  C12P19/04 ,  C12P19/06 ,  C12R1/64

    Abstract: Microbial polysaccharides can be liberated from their fatty amine adducts by treating these adducts in the presence of an alcohol with a salt of ammonia or of a highly volatile amine which is soluble in this alcohol or thermally readily dissociated. It is preferable to use alcohols which have a boiling point under atmospheric pressure of up to about 100 DEG C., and salts of ammonia or of an amine which has a boiling point of less than 150 DEG C. under atmospheric pressure.

    2.
    发明专利
    未知

    公开(公告)号：DE2201890A1

    公开(公告)日：1973-07-19

    申请号：DE2201890

    申请日：1972-01-15

    Applicant: HOECHST AG

    Inventor： FISCHER EDGAR DR

    IPC: C08K5/00 ,  C08J7/04 ,  C08J7/12 ,  C08K5/07 ,  C08L33/00 ,  C08L33/02 ,  C08L77/00 ,  C08F29/02

    Abstract: 1409372 Coated articles HOECHST AG 12 Jan 1973 [15 Jan 1972] 1832/73 Heading B2E [Also in Division B8] A shaped article of a light-degradable plastics material, has on at least one surface a layer capable of absorbing light of any wavelength which can degrade the plastics material, the layer being capable of being detached, or dissolved under the action of water. The plastics material may be inherently light-degradable or it may have been sensitised by incorporation of sensitisers. Suitable light-degradable plastics that are specified are sensitised polyethylene, polypropylene, polystyrene, and copolymers such as butadiene/acrylonitrile/styrene copolymers, polyacetals, polyesters, cellulose esters and halogen-containing polymers such as polyvinyl chloride. The article may be in the form of sheets, films and filaments. The absorbants may be non-transparent substances such as carbon black, clay, rock dust, chalk, iron oxide, titanium dioxide and metal bronzes. If a transparent layer is desired known UV absorbants can be employed such as the hydroxy-benzophenones and hydroxybenztriazoles. The absorbing substance may be applied as a film and suitable film-forming agents are dispersions such as are polyvinyl esters, polyethers or polyacetals, e.g. a copolymer of trioxane with 80% by weight or dioxolane. Polyvinylmethyl ethers, and cellulose ethers such as methyl, dihydroxyethyl or carboxymethyl cellulose may also be used. Wholly or partially hydrolised polyvinyl acetate having a residual acetyl content of less than 25% may also be used and films of polymers which are not directly soluble in water such as polyvinyl acetate may also be employed after having been rendered sensitive to the action of water by adding readily water-soluble polymers such as polyvinyl alcohol or polyacrylamide. Polyamides such as poly-D-glutamic acid methyl ester can be rendered watersoluble also. The thickness of the absorbant protected layer can vary and is generally of 10 to 1000 microns.

    5.
    发明专利
    未知

    公开(公告)号：DE2158002A1

    公开(公告)日：1973-05-24

    申请号：DE2158002

    申请日：1971-11-23

    Applicant: HOECHST AG

    Inventor： FISCHER EDGAR DR

    IPC: B29B7/00 ,  B29B7/08 ,  B29B7/14 ,  B29B7/22 ,  B29B9/00 ,  B01F7/16

    Abstract: The mixer comprises a tube, one end of which is closed by a stationary piston and the other end by a piston movable in the direction of the tube axis and provided with an axial boring through which a stirrer extends into the tube. The stirrer pivots round its axis and can be shifted in axial direction.

Patent Agency Ranking