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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Chafetz; Harry
Address:
Glenham, NY
No. of patents:
5
Patents:












Patent Number Title Of Patent Date Issued
5093513 Process for oxycarbonylation of lower alkanols March 3, 1992
A lower alkanol, such as methanol is oxycarbonylated with carbon monoxide and oxygen to yield e.g. dimethyl carbonate at 50.degree. C.-125.degree. C. and 300-1500 psig in the presence of as catalyst, a functionalized inorganic oxide substrate (such as silica gel) typically bearing on the
4948524 Dispersant anti-oxidant VI improver and lubricating oil composition containing same August 14, 1990
An additive composition prepared by reacting a polymer prepared from ethylene and at least one C.sub.3 -C.sub.10 alpha-monoolefin and optionally a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole percent of ethylene from about 20 to 85 mole
4900705 Novel ligand catalyst systems formed by reaction of carbonyl compounds with organosilicon compou February 13, 1990
A novel catalyst system useful in preparation of dimethyl carbonate is prepared by complexing a metal salt such as cupric chloride CuCl.sub.2 with a ligand formed by reacting a carbonyl-containing organic compound such as ethyl formate with an organosilicon compound containing alkoxy and
4689422 Novel ligand catalyst systems formed by reaction of carbonyl compounds with organosilicon compou August 25, 1987
A novel ligand system useful in preparation of dimethyl carbonate is prepared by complexing a metal salt such as cuprous chloride Cu.sub.2 Cl.sub.2 with a ligand formed by reacting a carbonyl-containing compound such as ethyl formate with an organosilicon compound such as ethyl formate
4382007 Novel dispersant-VI improvers and lubricating oil containing same May 3, 1983
This invention concerns dispersant-VI improvers prepared by reacting a polyamine-derived dispersant with an oxidized ethylene-propylene polymer or ethylene-propylene-diene terpolymer. The products thus formed have a dispersancy superior to that obtained by separately blending the reactan










 
 
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