Inventor
CRITCHFIELD FRANK E
19 patents
⚠️ This page may combine multiple inventors who share the name “CRITCHFIELD FRANK E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNION CARBIDE CORP
9 patentsUS4190711AFeb 26, 1980
Thermoplastic polyether polyurethane elastomers
UNION CARBIDE CORP107 citations96
US4463107AJul 31, 1984
Polymer/polyol compositions having improved combustion resistance
UNION CARBIDE CORP62 citations95
US4125505ANov 14, 1978
Polymer/polyols from high ethylene oxide content polyols
UNION CARBIDE CORP68 citations95
US4652589AMar 24, 1987
Polymer/polyols having improved combustion resistance and intrinsic viscosity, methods of making same and polyurethanes prepared therefrom
UNION CARBIDE CORP56 citations94
US4226756AOct 7, 1980
Mixtures of extenders and polyols or polymer/polyols useful in polyurethane production
UNION CARBIDE CORP44 citations91
US4312973AJan 26, 1982
Polyurethane elastomers prepared from polyol or polymer/polyol-chain extender mixtures
UNION CARBIDE CORP20 citations81
US4283500AAug 11, 1981
Polymer/polyisocyanates
UNION CARBIDE CORP20 citations73
US4797501AJan 10, 1989
Silicone-based stabilizers useful in the preparation of improved polyurethane foams
UNION CARBIDE CORP14 citations71
US4814359AMar 21, 1989
Process for producing flexible polyurethane foam using hexahydro-S-triazine catalysts
UNION CARBIDE CORP6 citations69
ARCO CHEM TECH
6 patentsUS5364906ANov 15, 1994
Low viscosity polymer polyols with improved dispersion stability
ARCO CHEM TECH65 citations95
US5668191ASep 16, 1997
One-shot cold molded flexible polyurethane foam from low primary hydroxyl polyols and process for the preparation thereof
ARCO CHEM TECH42 citations92
US5496894AMar 5, 1996
Low viscosity polymer polyols with improved dispersion stability
ARCO CHEM TECH28 citations92
US5549841AAug 27, 1996
Process for manufacturing foam with improved wet set properties
ARCO CHEM TECH23 citations91
US5395860AMar 7, 1995
Flexible polyurethane foams using chlorinated alkanes
ARCO CHEM TECH42 citations90
US5718856AFeb 17, 1998
Process for manufacturing foam with improved wet set properties
ARCO CHEM TECH13 citations71
UNION CARBIDE CHEM PLASTIC
3 patentsUS4883825ANov 28, 1989
Process for the manufacture of low density, flexible polyurethane foams
UNION CARBIDE CHEM PLASTIC44 citations91
US5084486AJan 28, 1992
Reactive feed stream to replace inert blowing agent feed stream in a polyurethane foam process
UNION CARBIDE CHEM PLASTIC21 citations77
US4902723AFeb 20, 1990
Process for producing flexible polyurethane foam using hexahydro-s-triazine catalysts
UNION CARBIDE CHEM PLASTIC2 citations58