Patents Assigned to Topas Advanced Polymers, Inc.
  • Patent number: 9452593
    Abstract: A melt-blend resin composition prepared by melt-blending includes from 60 parts to 99 parts per hundred weight resin in the blend of an amorphous cycloolefin polymer composition exhibiting a glass transition temperature in the range of from 30° C. to 200° C.; and from 40 parts to 1 part per hundred weight resin in the blend of a partially crystalline, cycloolefin elastomer of norbornene and ethylene preferably having a glass transition temperature in the range of from ?10° C. to 15° C. and a crystalline melting temperature in the range of from 60° C. to 125° C. and a % crystallinity by weight in the range of from 5% to 40%. The partially crystalline, cycloolefin elastomer optionally has a second glass transition temperature at less than ?90° C.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: September 27, 2016
    Assignee: TOPAS ADVANCED POLYMERS, INC.
    Inventors: Paul D. Tatarka, Timothy M. Kneale
  • Patent number: 8986820
    Abstract: Thermoformed articles include cycloolefin/ethylene copolymer and LLDPE. The articles are formed with an areal draw ratio of 1.5 and greater and exhibit unexpectedly elevated stiffness along with ductility suitable for forming deep-draw parts. Multilayer sheet is used for achieving a desired set of properties.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: March 24, 2015
    Assignee: Topas Advanced Polymers, Inc.
    Inventor: Paul D. Tatarka
  • Publication number: 20140162041
    Abstract: A coextruded film comprising a transparent polymeric inner core layer of thickness less than 250 micron and two peelable outer polymeric layers. In a preferred embodiment, a 50 micron COC core film produced by this technique has a haze of ?0.5%.
    Type: Application
    Filed: December 10, 2012
    Publication date: June 12, 2014
    Applicant: TOPAS ADVANCED POLYMERS, INC.
    Inventors: Randy D. Jester, Paul D. Tatarka
  • Patent number: 8092877
    Abstract: The present invention relates to polymer structures such as thermoplastic films having improved aroma barrier properties and methods for making the polymeric structures, which may be in the form of a resealable container. Aroma barrier is improved by incorporating a barrier layer of polymeric material including at least about 10 mole percent of polymerized cyclo-olefin moieties.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: January 10, 2012
    Assignees: Topas Advanced Polymers, Inc., Pactiv Corporation
    Inventors: Randy D. Jester, Barbara Canale-Schmidt, William P. Belias, Paul N. Chen
  • Patent number: 7288316
    Abstract: The present invention relates to a heat-sealable film which consists essentially of a cycloolefin copolymer (COC), the glass transition temperature (Tg) of the COC being within the range from 30 to 55° C. The film or sheet has excellent low temperature heat-sealing properties and processing characteristics. The film may be free standing or laminated to other thermoplastic polymer film or films at low temperatures. Alternatively, a COC polymer with Tg in the range 30 to 55° C. may be coextruded with other thermoplastic polymer or polymer films in a coextrusion process to form a heat sealable film. The film of the invention is suitable for packing foods or other consumable items.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: October 30, 2007
    Assignee: Topas Advanced Polymers, Inc.
    Inventor: Randy D. Jester