Patents by Inventor Wulf von Bonin

Wulf von Bonin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Light sensitive photographic material containing a mordant layer
    Patent number: 4186014
    Abstract: A suitable mordanting polymer for the image receiving layer in a color photographic material for the dye diffusion transfer process is a water-soluble cationic polymer containing glycidyl groups. Such polymers can be made by quaternizing a basic polyurethane, polyurea or polyurea polyurethane of the formula ##STR1## with a quaternizing agent capable of introducing glycidyl groups. The recurring unit contains a quaternizable tertiary amino group, and the recurring unit B is derived from a bis-chloroformate or a diisocyanate.
    Type: Grant
    Filed: July 11, 1977
    Date of Patent: January 29, 1980
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Peter Bergthaller, Wulf von Bonin, Gunter Helling, Paul Marx
  • Polymer systems containing polycarbodiimides and thermoplastic polymer
    Patent number: 4169866
    Abstract: Thermoplastically processible polymer systems containing a polycarbodiimide as a polymer component.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: October 2, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf VON Bonin, Wolfgang Oberkirch, Ulrich VON Gizycki
  • Process for the production of plastics/metal composites
    Patent number: 4160851
    Abstract: This invention relates to the production of composites of organic polyisocyanate plastics and metals. The metals are pretreated with certain adhesion promoters in order to increase adhesion between the metal and the plastic. The pretreated metal sheet or foil is brought into contact with the reaction mixture during the chemical reaction while the plastic is being formed.
    Type: Grant
    Filed: July 21, 1977
    Date of Patent: July 10, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jurgen Lienert, Helmut Kleimann, Dieter Dieterich, Wulf VON Bonin, Klaus Friederich, Peter Markusch
  • Paper-sizing agents
    Patent number: 4152312
    Abstract: Anionic sizes for paper or a paper-like material. Substantially equimolecular copolymers of maleic acid anhydride and diisobutylene are esterified to form the corresponding semi-esters. From 10 to 100 mol-% of the anhydride groups are reacted with an aliphatic or cycloaliphatic alcohol. At least 50 mol-% of the formed carboxylic groups are neutralized with alkali, ammonia or aliphatic amines.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: May 1, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunter Sackmann, Wulf VON Bonin, Friedhelm Muller, Gunter Kolb
  • Polymerization products containing polycarbodiimides and vinyl monomers
    Patent number: 4148844
    Abstract: Heat-curable casting resins comprising a mixture of a polycarbodiimide and a copolymerizable vinyl monomer.
    Type: Grant
    Filed: May 24, 1977
    Date of Patent: April 10, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf VON Bonin, Lothar Preis, Ulrich VON Gizycki
  • Restraining layer for retarding the diffusion of hydroxyl ions in the dye diffusion transfer process
    Patent number: 4148653
    Abstract: A restraining layer capable of retarding the diffusion of hydroxyl groups is of particular use in a neutralization system for the dye diffusion transfer process. The restraining layer of the invention comprises a film-forming linear polymer consisting of alternating hydrophilic and hydrophobic segments joined to one another by carbonate, urethane and/or ester groups. The neutralization system provides retarded reduction of pH in the photographic material.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: April 10, 1979
    Assignee: AGFA-Gevaert AG
    Inventors: Wulf von Bonin, Erich Wolff, Werner Krafft, Gunther Matschke
  • Rod for supporting plants and process for its manufacture
    Patent number: 4143105
    Abstract: The rot-resistant plant support which is aesthetically pleasing and can be inexpensively produced consists of a rod section and a plastics material which can be colored. The interior of the rod is finely porous while the surface zone has bark-like protuberances. The plant supports are manufactured by extrusion at processing temperatures in the tool adjusted to between 5 and 30.degree. C. above the temperatures conventionally employed for extruding foams with a smooth surface from the same thermoplasts.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: March 6, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Claus Hentschel, Wulf VON Bonin, Joachim Gehring, Dietrich Hardt
  • Process for the production of foams
    Patent number: 4098731
    Abstract: The present invention relates to the production in closed molds, of foams with outstanding mold-release properties. These improved properties are obtained by including in the foamable mixture salts of saturated or unsaturated aliphatic or cycloaliphatic carboxylic acids having at least 8 carbon atoms and tertiary amines of the type in which the atom ratio of tertiary amine nitrogen to carbon in the molecule is between 1:3 and 1:12.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: July 4, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf von Bonin, Helmut Kleimann, Jozsef Ivanyi
  • Fire-proofing sealing elements
    Patent number: 4097385
    Abstract: A fire-proofing sealing material comprising a flexible tube enclosing an aqueous alkali metal silicate in the form of a solution or a gel. The sealing material is placed in an opening such as a joint or crack and, in the event of a fire, the silicate foams and forms a fire-proof seal.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: June 27, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventor: Wulf von Bonin
  • Process for molding polyurethane foams
    Patent number: 4058492
    Abstract: The mold release properties of a molded polyurethane foam are improved by including in the foamable reaction mixture to be molded a reaction product of a ricinoleic acid and a long chain fatty acid.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: November 15, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf VON Bonin, Helmut Kleimann, Udo Post
  • Dye diffusion transfer material with graft polymer binding layer
    Patent number: 4056397
    Abstract: In a photographic monosheet material for the dye diffusion transfer process a temporary bond is adjusted between a first layer and a second layer by placing between said layers another layer of a graft polymer which is obtained by grafting a monomer containing double bonds capable of radical polymerization onto a hydrophilic linear basis polymer. The two layers are firmly bonded to each other but are easily separated, when the processing liquid is forced between them.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: November 1, 1977
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Werner Krafft, Erich Wolff, Wulf VON Bonin
  • Filled polymerization products based on carbodiimide copolymers
    Patent number: 4042558
    Abstract: This invention is concerned with polymerizable compositions, a process for producing and polymerizing such compositions and the resultant polymerization product. Compositions comprising the reaction product of polycarbodiimides and .alpha.,.beta.-unsaturated carboxylic acids are dissolved in vinyl monomers and subject to free-radical polymerization. The polymerization product may contain up to about 300 weight percent of conventional fillers.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: August 16, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf von Bonin, Lothar Preis, Ulrich VON Gizycki, Manfred Dahm
  • Process for molding polyurethane foams
    Patent number: 4033912
    Abstract: The mold release properties of a molded polyurethane foam are improved by including the foamable mixture to be molded, a reaction product of a polysiloxane and an organic monoisocyanate or polyisocyanate.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: July 5, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut Kleimann, Wulf VON Bonin
  • Process for molding polyurethane foams
    Patent number: 4024090
    Abstract: The mold release properties of a molded polyurethane foam are improved by including in the foamable reaction mixture to be molded a reaction product of a polysiloxane and a monocarboxylic acid or polycarboxylic acid.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: May 17, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf VON Bonin, Helmut Kleimann, Udo Post
  • Anionic sizes
    Patent number: 4001193
    Abstract: Improved anionic sizes of alkali metal or ammonium salts of copolymers of 0.5- 50% by weight of an aliphatic or cycloaliphatic half ester of .alpha.,.beta.-monoolefinisch unsaturated dicarboxylic acids, 6-40% by weight of acrylic and/or methacrylic acid and 40-85% by weight of an aromatic monovinyl compound such as styrene.
    Type: Grant
    Filed: January 28, 1974
    Date of Patent: January 4, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf VON Bonin, Friedhelm Muller, Nikolaus Schon
  • Process for the production of polyurethane foams
    Patent number: 3993606
    Abstract: The mold release properties of a molded polyurethane foam are improved by including in the foamable reaction mixture to be molded a salt of a polysiloxane which contains amino groups and a fatty acid.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: November 23, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf VON Bonin, Helmut Kleimann, Armand DE Montigny, Jozsef Ivanyi
  • Fabric for use in making footwear
    Patent number: 3985929
    Abstract: A non-woven fabric adapted for use in footwear is impregnated with a polymer prepared by polymerizing acrylic acid or methacrylic acid, mixtures thereof, or mixtures with other vinyl monomers in the presence of polyethylene oxide to improve its water absorption characteristics.
    Type: Grant
    Filed: November 1, 1974
    Date of Patent: October 12, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf von Bonin, Helmut Streigler