Patents by Inventor Peter Gleichenhagen

Peter Gleichenhagen 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: 6884840
    Abstract: A process for preparing hot-melt pressure-sensitive adhesives from aqueous dispersions based on polyacrylate, and pressure-sensitively adhesive articles produced therefrom, which comprises producing highly concentrated aqueous dispersions with polymer contents between 68% by weight and 87% by weight of gel-free, molecularly-dispersely meltable polymer particles with an at least bimodal size distribution in size ranges between 0.5 ?m and 1000 ?m Ø.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: April 26, 2005
    Assignee: tesa AG
    Inventors: Peter Gleichenhagen, Annemarie Müller
  • Patent number: 6627023
    Abstract: Use of a fixing aid on the underside of a splicing tape, where a) the splicing tape is stuck using the fixing aid to the second-from-top web of a wound reel, and b) the splicing tape is also stuck to the leading edge of the topmost web of the wound reel in such a way that at least part of the adhesively equipped upper face of the splicing tape that is situated opposite to the fixing aid is open for adhesive coupling to a high-speed web of another, unrolling reel, c) the fixing aid being stuck onto the underside of the splicing tape and comprising a backing material formed from two laminated sheetlike materials, where the lamination forms a predetermined breakage zone and the fixing aid has been made pressure-sensitively adhesive on its underside.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: September 30, 2003
    Assignee: tesa AG
    Inventors: Peter Gleichenhagen, Annemarie Müller
  • Patent number: 6590024
    Abstract: Method for producing release agent dispersions for glue-resistant layering on material in the form of surface areas, sheets or strips, especially for the production of surface coatings on the reverse side of pressure sensitive tapes et al, characterized in that copolymers are produced by radical polymerization in an aqueous dispersion from the monomer mixtures described herein.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: July 8, 2003
    Assignee: tesa AG
    Inventors: Peter Gleichenhagen, Annemarie Müller
  • Publication number: 20010034394
    Abstract: A process for preparing hot-melt pressure-sensitive adhesives from aqueous dispersions based on polyacrylate, and pressure-sensitively adhesive articles produced therefrom, which comprises producing highly concentrated aqueous dispersions with polymer contents between 68% by weight and 87% by weight of gel-free, molecularly-dispersely meltable polymer particles with an at least bimodal size distribution in size ranges between 0.5 &mgr;m and 1000 &mgr;m .
    Type: Application
    Filed: March 22, 2001
    Publication date: October 25, 2001
    Inventors: Peter Gleichenhagen, Annemarie Muller
  • Patent number: 5624751
    Abstract: Use of a paper carrier for the production of a repulpable carton sealing tape which is finished on one side with a repulpable self-adhesive composition and on the other side with a repulpable silicone-free release based on a copolymer of amide/styrene together with a film-forming agent.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: April 29, 1997
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Manfred Spies, Peter Gleichenhagen, Herbert Knolle, Robert Meyer, Andreas Westphal
  • Patent number: 5489642
    Abstract: Repulpable contact adhesive based on a graft polymer in which 3-20% by weight of vinyl compounds having sulphonic acid salt groups are grafted onto a copolymer of (meth)acrylates and (meth)acrylic acid and which is rendered tacky by means of water-soluble plasticizers.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: February 6, 1996
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Peter Gleichenhagen, Andreas Westphal
  • Patent number: 4587152
    Abstract: Residuelessly redetachable contact-adhesive sheet-like structures wherein are provided approximately calotte-shaped bonding sites which are up to about 600 .mu.m in diameter at the base where the calottes stick to the sheet-like structure and which are produced by screen or gravure printing using high-solids dispersion of adhesive substance.
    Type: Grant
    Filed: December 11, 1984
    Date of Patent: May 6, 1986
    Assignee: Beiersdorf AG
    Inventors: Peter Gleichenhagen, Ekkehard Behrend, Peter Jauchen
  • Patent number: 4413082
    Abstract: A water-soluble, pressure-sensitive, self-adhesive composition comprising a limited class of copolymers and a specific plasticizer which is completely neutralized with potassium hydroxide. The composition comprises 30 to 80 parts of a copolymer of 70 to 88% by weight acrylic acid butyl ester and 12 to 30% by weight vinyl carboxylic acid. The ester may be substituted in an amount of 3 to 12% by weight by acrylic acid-2-ethylhexyl ester and/or 5 to 25% by weight by a mixture of vinyl acetate and fumaric acid dialkyl ester. The composition also includes 20 to 70 parts by weight of a water soluble plasticizer which is ethoxylated phenol (or alkylphenol), ethoxylated alkyl mono- or diamine, or an ethoxylated alkyl ammonium compound. The composition is particularly useful for the production of adhesive tapes and similar articles useful in the papermaking industry for maintaining paper webs in continuous form.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: November 1, 1983
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Peter Gleichenhagen, Ingrid Wesselkamp
  • Patent number: 3987000
    Abstract: A polymer composition is disclosed which can be sprayed or otherwise thinly coated on an open wound to serve as a protective bandage. The composition comprises:A. 10 to 30% by weight of isobutene relative to total monomer weight;B. 5 to 85% by weight of total monomer of one or more esters of acrylic or methacrylic acid and one or more normal or branched, monovalent, primary or secondary aliphatic alcohols having 1-4 carbon atoms; andC. 5 to 85% by weight of total monomer of one or more maleic acid monoalkyl esters having 1-12 carbon atoms in the monoalkyl portion of the molecule.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: October 19, 1976
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Peter Gleichenhagen, Dietrich Schulte, Gunther Bonitz
  • Patent number: RE37612
    Abstract: Residuelessly redetachable contact-adhesive sheet-like structures wherein are provided approximately calotte-shaped bonding sites which are up to about 600 &mgr;m in diameter at the base where the calottes stick to the sheet-like structure and which are produced by screen or gravure printing using high-solids dispersion of adhesive substance.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: March 26, 2002
    Assignee: Beiersdorf AG
    Inventors: Peter Gleichenhagen, Ekkehard Behrend, Peter Jauchen