Patents by Inventor Gerhard Grolig

Gerhard Grolig 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).

  • Patent number: 6048917
    Abstract: The invention relates to a bonded nonwoven fiber fabric and packaging films strengthened with such a fabric, especially sausage casings based on celluloses. The nonwoven fiber fabric itself can be used as teabag paper. Bonding is achieved through treatment of a solution comprising cellulose, N-methylmorpholime-N-oxide and water. Bonding can be strengthened by a polyamine polyamide epichlorohydrin resin added to the fibrous pulp.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: April 11, 2000
    Assignee: Kalle Nalo GmbH & Co. KG
    Inventors: Klaus-Dieter Hammer, Gerhard Grolig
  • Patent number: 6033698
    Abstract: A fiber-reinforced, tubular food casing based on regenerated cellulose, which is produced using an amount of viscose solution which is decreased by 10 to 30% in comparison with the standard casing at a spinning speed increased by at least 25%.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: March 7, 2000
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Herbert Gord, Gerhard Grolig, Manfred Siebrecht
  • Patent number: 5928737
    Abstract: Sausage casings of starch which can be processed like a thermoplastic and to processes for the production and use thereof. The sausage casing comprises a thermoplastic starch which is comprised of natural starch which has been converted into an amorphous state.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: July 27, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Gerhard Grolig, Dieter Beissel
  • Patent number: 5238743
    Abstract: A plastic sheet, which initially is biaxially stretched above its glass transition temperature and heat-set, is stretched a second time monoaxially or biaxially at temperatures below its glass transition temperature, the stretching ratio in the two directions being in the range from about 0.5 to 10%. The secondary stretching is carried out at temperatures between about 30.degree. C. and 60.degree. C.This sheet which has been stretched twice is integrated into a laminated safety glass comprising a laminate, in which the plastic sheet carrying a function layer is disposed between two polyvinylbutyral sheets which, in turn, are enclosed between glass panes.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: August 24, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gerhard Grolig, Werner Roth, Peter Lang, Horst Eberhardt
  • Patent number: 5153062
    Abstract: A process for producing laminated safety glass is disclosed, comprising depositing a film which comprises at least one function layer on a plastic sheet, inserting the sheet between a plurality of further layers, such as two polyvinylbutyral sheets which are in turn enclosed by glass panes, such that the plastic sheet projects beyond the edges of the other layers, clamping the plastic sheet along its projecting sections, and laminating the layers. A clamping device for performing the process and a laminated safety glass produced by the process are also disclosed.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: October 6, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gerhard Grolig, Peter Boening, Manfred Kuechler, Guenter Reinhard
  • Patent number: 4952258
    Abstract: A process for producing laminated safety glass is disclosed, comprising depositing a film which comprises at least one function layer on a plastic sheet, inserting the sheet between a plurality of further layers, such as two polyvinylbutyral sheets which are in turn enclosed by glass panes, such that the plastic sheet projects beyond the edges of the other layers, clamping the plastic sheet along its projecting sections, and laminating the layers. A clamping device for performing the process and a laminated safety glass produced by the process are also disclosed.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: August 28, 1990
    Assignee: Hoechst Aktiengsellschaft
    Inventors: Gerhard Grolig, Peter Boening, Manfred Kuechler, Guenter Reinhard
  • Patent number: 4855186
    Abstract: A coated plastic film 5 possessing high transmittance for visible light and high reflectance for heat radiation is disclosed which comprises a carrier film 1 of a transparent polymer and a reflection metal layer 3 embedded between two dielectric layers 2 and 4. The reflection metal layer 3 is formed from a metal selected from the group comprising silver, gold, and copper, whereas dielectric layers 2 and 4 are metal nitride layers.This coated plastic film may be coated on each side with a polyvinyl butyral film to form a plastic laminate which is itself a constituent of a laminated safety glass pane.
    Type: Grant
    Filed: February 23, 1988
    Date of Patent: August 8, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gerhard Grolig, Guenther Schmidt