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POLYSAR LTD

Overview
  • Total Patents
    1,146
About

POLYSAR LTD has a total of 1,146 patent applications. Its first patent ever was published in 1961. It filed its patents most often in Canada, United States and France. Its main competitors in its focus markets macromolecular chemistry and polymers, machines and transport are M & G USA CORP, APG POLYTECH LLC and STYRON EUROPE GMBH.

Patent filings per year

Chart showing POLYSAR LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sato Kyosaku 46
#2 Buckler Ernest Jack 40
#3 Kent Eric George 33
#4 Wei Yung-Kang 30
#5 Edwards Douglas Cameron 30
#6 Dunn John Robert 29
#7 Walker John 27
#8 Edwards Douglas C 27
#9 Lasis Evalds 21
#10 Feniak George 20

Latest patents

Publication Filing date Title
US5372980A Bimetallic metallocene alumoxane catalyst system and its use in the preparation of ethylene-alpha olefin and ethylene-alpha olefin-non-conjugated diolefin elastomers
US5252664A Transparent toughened thermoplastics
EP0424816A2 Bismaleimide resin compositions
AU6308390A Chlorinated epdm with superior stability
US5045603A Chlorinated EPDM with superior stability
US5043392A Toughened thermoplastics
AU4617789A Novel ethylene-propylene copolymer
US4943616A Living cationic polymerization process
US4985540A Process for removing rhodium-containing catalyst residue from hydrogenated nitrile rubber
US4959420A Chlorinated EPDM with superior stability
US5051299A Fibre reinforced belt
CA1339789C Vulcanizable rubbery compositions
US5079296A Transparent toughened thermoplastics
CA1336281C Polymerization process and catalyst system therefor
US5194528A Dimer reduction
US5244965A Polymer solution treatment process
US4956398A Nitrile rubber/vinyl chloride polymer/silica compositions
US4925715A Linerless roll of self fusing tape
US4983528A Measurement of unsaturation level in butyl and EPDM rubbers
US5026794A Adducts of an hydroxy-free acrylate resin and an epoxy resin