Patents by Inventor Lutz E. Jacob

Lutz E. Jacob 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).

  • Hot melt pressure sensitive adhesive composition
    Patent number: 6384138
    Abstract: A hot melt pressure sensitive adhesive for use with oriented polypropylene films is provided. The adhesive composition comprises an elastomeric component which is a blend of styrene-isoprene block copolymers and styrene-butadiene block copolymers mixed with a tackifier component. The tackifier component is a blend of at least two hydrocarbon resins, the first being compatible with the styrene-isoprene block copolymer and the second being compatible with the styrene-butadiene block copolymer.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: May 7, 2002
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: Lutz E. Jacob, Eddy Swiggers
  • Tackifiers and their use in pressure sensitive adhesives
    Patent number: 5284891
    Abstract: Resins having a softening point from 10.degree. C. to 120.degree. C. especially 10.degree. C. to 80.degree. C. being a copolymer of a feed which is predominantly C.sub.5 olefines and diolefines and 10 to 60 wt. % of one or more monovinyl aromatic compounds are used as a tackifier for acrylic polymers or copolymers particularly in aqueous based pressure sensitive adhesives.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: February 8, 1994
    Assignee: Exxon Research & Engg.
    Inventors: Guy Wouters, Lutz E. Jacob
  • Process of making an adhesive coated article
    Patent number: 4973497
    Abstract: A coated substrate such as an adhesive tape is produced by applying to a substrate a solution of a mixture of a rubber (eg. natural rubber) and a tackifier (eg. a petroleum resin) dissolved in a solvent (eg heptane) wherein the solution, prior to its application to the substrate, has been subjected to evaporation in a thin film evaporator so that the concentration of rubber and tackifier in the solvent is at least 35, usually at least 45 weight percent so enabling faster coating speeds.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: November 27, 1990
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Claudio Cervellati, Giorgio Capaldi, Lutz E. Jacob
  • Adhesive emulsion
    Patent number: 4892905
    Abstract: Petroleum resins having a softening point from 10.degree. C. to 80.degree. C. obtained from C.sub.5 olefins and diolefines and one or more monovinyl aromatic compounds which contain from 10 to 30 wt. % of the aromatic are useful as tackifiers for carboxylated styrene butadiene copolymer to produce pressure sensitive additives especially aqueous based adhesive when the resin is in the form of an emulsion which is also claimed.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: January 9, 1990
    Assignee: Exxon Research & Engineering Company
    Inventors: Andre Lepert, Morris L. Evans, Lutz E. Jacob
  • Tackifiers and their use in pressure sensitive adhesives
    Patent number: 4766169
    Abstract: Petroleum resins having a softening point from 10.degree. C. to 80.degree. C. obtained from C.sub.5 olefines and diolefines and one or more monovinyl aromatic compounds contain from 10 to 30 wt. % of the aromatic are useful as tackifiers in a combination with carboxylated styrene butadiene copolymer to produce aqueous based pressure sensitive adhesives.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: August 23, 1988
    Assignee: Exxon Research & Engineering Co.
    Inventors: Andre Lepert, Morris L. Evans, Lutz E. Jacob
  • Tackifiers and their use in pressure sensitive adhesives
    Patent number: 4623698
    Abstract: Petroleum resins having a softening point from 10.degree. C. to 80.degree. C. obtained from C.sub.5 olefines and diolefines and one or more monovinyl aromatic compounds which contain from 10 to 30 wt. % of the aromatic are useful as tackifiers for carboxylated styrene butadiene copolymer to produce pressure sensitive additives especially aqueous based adhesive when the resin is in the form of an emulsion which is also claimed.
    Type: Grant
    Filed: March 28, 1985
    Date of Patent: November 18, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventors: Lutz E. Jacob, Andre Lepert, Morris L. Evans