Patents by Inventor Timothy A. Meterko

Timothy A. Meterko 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).

  • Copolyimide ODPA/BPDA/4,4'-ODA or P-PDA
    Patent number: 5171828
    Abstract: Polyimide copolymers are disclosed having the recurring structure ##STR1## wherein AR is AR.sub.1 or AR.sub.2, wherein AR.sub.1 is ##STR2## and wherein AR.sub.2 is ##STR3## provided that the molar ratio of AR.sub.1 to AR.sub.2 is 3:1 to 1:3, and wherein AR.sub.3 is ##STR4## These polyimides have unexpected properties which are useful in various electronic applications.
    Type: Grant
    Filed: August 5, 1991
    Date of Patent: December 15, 1992
    Assignee: Occidental Chemical Corporation
    Inventors: Timothy A. Meterko, Rudolph F. Mundhenke, Willis T. Schwartz
  • Copolyimide ODPA/BPDA/4,4'-ODA or P-PDA
    Patent number: 5077382
    Abstract: A co-polyimide based upon a mixture of 4,4'-oxydiphthalic dianhydride (ODPA) and 3,4,3',4'-biphenyltetracarboxylic dianhydride (BPDA) as the dianhydride component and either 4,4'-oxydianiline (ODA) or paraphenylene diamine as the amine component is disclosed. The molar ratio between the ODPA and BPDA ranges from 3:1 to 1:3. The co-polyimide may either be formed as a random copolymer, or as a block copolymer where the blocks are based upon blocks of polymer containing ODPA and blocks of polymer containing BPDA provided that the molar ratios of ODPA and BPDA are in the ratio of 3:1 to 1:3.
    Type: Grant
    Filed: October 26, 1989
    Date of Patent: December 31, 1991
    Assignee: Occidental Chemical Corporation
    Inventors: Timothy A. Meterko, Rudolph F. Mundhenke, Willis T. Schwartz