Patents by Inventor Ralph P. Kitson

Ralph P. Kitson 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).

  • Intermediate softening point resin-based hot melt PSAs
    Patent number: 7847011
    Abstract: A rosin based intermediate softening point (ISPR) tackifier has a ring and ball softening point of from 35 to 60° C. A hot-melt pressure-sensitive adhesive (HMPSA) composition contains an elastomeric component, such as a blend of SIS and SB block copolymers, and a tackifying component comprising one or more rosin based ISPRs having a ring and ball softening point of from 35 to 60° C.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: December 7, 2010
    Assignee: Avery Dennison Corporation
    Inventor: Ralph P. Kitson
  • PRESSURE SENSITIVE ADHESIVE
    Publication number: 20090312483
    Abstract: A hot melt pressure sensitive adhesive composition contains an elastomeric component that includes a solid rubber and a liquid rubber, and a tackifier component. The solid rubber component may contain a blend of SIS/SI and SBS/SB block copolymers. The hot melt pressure sensitive adhesive is particularly useful in label constructions.
    Type: Application
    Filed: June 2, 2006
    Publication date: December 17, 2009
    Inventor: Ralph P. Kitson
  • Intermediate Softening Point Resin-Based Hot Melt Psas
    Publication number: 20080262134
    Abstract: A rosin based intermediate softening point (ISPR) tackifier has a ring and ball softening point of from 35 to 60° C. A hot-melt pressure-sensitive adhesive (HMPSA) composition contains an elastomeric component, such as a blend of SIS and SB block copolymers, and a tackifying component comprising one or more rosin based ISPRs having a ring and ball softening point of from 35 to 60° C.
    Type: Application
    Filed: July 25, 2006
    Publication date: October 23, 2008
    Inventor: Ralph P. Kitson