Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Polymerization of tetrahydrofuran using trifluoromethane sulfonic acid monohydrate as catalyst

Polymerization of tetrahydrofuran using trifluoromethane sulfonic acid monohydrate as catalyst

US Patent 5155283 · Granted Oct 13, 1992

Estimated economic value: $11,653,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method for manufacturing diacetate esters of polytetramethylene ethers1999
Alkanolysis of polyether polyol esters by reactive distillation1998
Method for recovering diacetate esters of polytetramethylene ethers1997
Reduction of molecular weight of poly(tetramethylene ether) glycol1996
Reducing molecular weight distribution of polyether glycols by short-path distil1994
Reducing molecular weight distribution of polyether glycols by short-path distil1994
Reduction of molecular weight of poly(tetramethylene ether) glycol1993
Preparation of polytetramethylene ether glycol using an acidic zirconia catalyst1992
Polymerization of tetrahydrofuran using a fluorinated acidic catalyst and maleic1992
Polymerization of tetrahydrofuran using a fluorinated acidic catalyst and maleic1992
Polymerizing tetrahydrofuran to produce polytetramethylene ether glycol using a 1992