Patents Represented by Attorney, Agent or Law Firm Thomas F. Roland, Esq.
  • Hot melt pressure sensitive adhesives based on compatibilized blends of elastomers
    Patent number: 6162859
    Abstract: The present invention is directed to hot melt pressure sensitive adhesive compositions, that exhibit excellent adhesion properties and improved thermal stability, said compositions comprising:a) 1 to 30 parts of styrene-butadiene-styrene triblock copolymer;b) 1 to 30 parts of styrene-isoprene-styrene triblock copolymer;c) 5 to 50 parts of a tackifier compatible with the butadiene and isoprene midblocks, but not compatible with the styrene end blocks;d) 5 to 70 parts of a tackifier compatible with the butadiene and isoprene midblocks, and the styrene end blocks;e) 5 to 30 parts of a tackifier compatible with the styrene end blocks, but not compatible with the butadiene and isoprene midblocks;f) 5 to 30 parts oil; andg) 0 to 5 parts wax.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: December 19, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Xinya Lu, Ingrid Cole
  • Water soluble amphiphilic heteratom star polymers and their use as emulsion stabilizers in emulsion polymerization
    Patent number: 6150468
    Abstract: The present invention is directed to amphiphilic star polymers and their use as emulsion stabilizers in emulsion polymerization.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: November 21, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Jules E. Schoenberg, Robert D. Harlan, Grant T. Shouldice, Paul M. Petersen