Differential Creping Patents (Class 8/114.5)
  • Patent number: 11802372
    Abstract: The invention relates to a rope made of textile fiber material, comprising a rope core and a sheath surrounding the rope core, wherein the sheath, an intermediate sheath located between the sheath and the rope core and/or a reinforcement located between the sheath and the rope core comprise(s) a twine of excess length, the twine of excess length being formed in that it comprises at least a first yarn and a second yarn which are twisted together, the first yarn having a greater length than the second yarn, measured in an untwisted state of a unit length of the twine. In a further aspect, the invention relates to a method of manufacturing a twine of excess length for the above-mentioned rope.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: October 31, 2023
    Assignee: TEUFELBERGER FIBER ROPE GMBH
    Inventor: Arno Reiter
  • Patent number: 8012285
    Abstract: This invention is directed to alkylphenol ethoxylate (APE)-free polymer binders formed by aqueous free radical emulsion polymerization and having specific peel and cure properties. The APE-free polymeric binders have a peel value, when adhered to a heated metal surface, of 35% to 200% of the peel value shown by a standard APE-based polymer binder control and exhibit a cure profile such that at least 55% cure is achieved within 30 seconds at a temperature required for cure, and a wet tensile strength at 30-seconds of cure of at least 1000 g/5 cm. Wet tensile strength is used as a measure of cure. Binders having the peel and cure properties described herein can be considered for use in crepe processes, especially DRC processes.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: September 6, 2011
    Assignee: Wacker Chemical Corporation
    Inventors: Joel Erwin Goldstein, Ronald Joseph Pangrazi
  • Patent number: 6824635
    Abstract: This invention is directed to APE-free polymer binders formed by emulsion polymerization and having specific peel and cure properties. The APE-free polymeric binders have a peel value, when adhered to a heated metal surface, of 35% to 200% of the peel value shown by a standard APE-based polymer binder control (i.e., AIRFLEX® 105 vinyl acetate-ethylene polymer emulsion) and exhibit a cure profile such that at least 55% cure is achieved within 30 seconds at a temperature required for cure. Wet tensile strength is used as a measure of cure. The peel value is determined by a modified release and adhesion test. Binders having the peel and cure properties described herein can be considered for use in crepe processes, especially DRC processes.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: November 30, 2004
    Assignee: Air Products Polymers, L.P.
    Inventors: Joel Erwin Goldstein, Ronald Joseph Pangrazi