Inventor
DRYSDALE NEVILLE E
US15 patents
Patents
15 patentsUS5028667AJul 2, 1991
Yttrium and rare earth compounds catalyzed lactone polymerization
DU PONT105 citations95
US5430122AJul 4, 1995
Preparation of poly(ether-urethanes) from cyclic ethers and organic isocyanates
DU PONT24 citations92
US5235031AAug 10, 1993
Polymerization of lactide
DU PONT31 citations92
US5095098AMar 10, 1992
Yttrium and rare earth compounds catalyzed lactone polymerization
DU PONT27 citations92
US5117008AMay 26, 1992
Solvent scrubbing recovery of lactide and other dimeric cyclic esters
DU PONT27 citations91
US5236560AAug 17, 1993
Solventless dimeric cyclic ester distillation process
DU PONT41 citations88
US5541346AJul 30, 1996
Polymerization of, and depolymerization to, cyclic ethers using selected metal compound catalysts
DU PONT11 citations74
US5478920ADec 26, 1995
Cyclic ether polymerization using silicon compound accelerators
DU PONT13 citations73
US5475069ADec 12, 1995
Polymerization of vinyl ethers
DU PONT8 citations73
US5635585AJun 3, 1997
Polymerization of, and depolymerization to, cyclic ethers using selected metal compound catalysts
DU PONT9 citations72
US5288881AFeb 22, 1994
Continuous reduced pressure dimeric cyclic ester production
DU PONT11 citations71
US6020499AFeb 1, 2000
Cyclic carbonates and their reactions with amines
DU PONT9 citations67
US4824995AApr 25, 1989
Poly-p-phenylamino carboxylate
DU PONT1 citations51
US4952291AAug 28, 1990
Process for the purification of aldehydes
DU PONT1 citations49
US6228979B1May 8, 2001
Cyclic carbonates and their reactions with amines
DU PONT1 citations46