Ronald E Epstein Deceased54 N Franklin St, Hempstead, NY 11550

7504352, Mar 17, 2009

May 3, 2002

10/476592

Ronald Alan Epstein - Upper Montclair NJ, US
William Thomas Wallack - Stamford CT, US

Basell Polidefine Italia s.r.l. - Milan

C08F 4/642
C08F 4/648

502115, 502127, 502132, 502134, 5261242, 5261249

A catalyst for use in the formation of polypropylene is disclosed that comprises a titanium compound having at least one titanium-halogen bond, supported on an activated, amorphous magnesium dihalide support that is essentially free of alkoxy functionality, with a titanium metal content of no more than about 2 wt %, based on the weight of the support, and an internal donor component. This catalyst is made by a: forming a combination of titanium tetrachloride, magnesium-containing compound that can be converted to magnesium dihalide and internal electron donor in an aromatic hydrocarbon solvent and bringing that combination to elevated temperature to form an intermediate product; washing the intermediate product with an aromatic hydrocarbon solvent at elevated temperature to produce a washed product and a supernatant followed by decantation of the supernatant therefrom; treating the washed product with titanium tetrachloride in an aromatic hydrocarbon solvent to form a treated product and a supernatant followed by heating of the treated product and supernatant, decantation of the supernatant therefrom, and washing of the treated product with an aromatic hydrocarbon solvent at elevated temperature; decantation of the supernatant therefrom, and washing of the treated product with an aromatic hydrocarbon solvent preferably at least one or two more times; and addition of an aliphatic hydrocarbon solvent to the treated product with decantation of the solvent therefrom to form a washed product which can be used as a propylene polymerization catalyst. If desired, after the formation of the washed product resulting from addition of the aliphatic hydrocarbon solvent, mineral oil can be added to the washed product to form a slurry containing the final catalyst.

2003002, Jan 30, 2003

May 3, 2001

09/847932

Ronald Epstein - Upper Montclair NJ, US
William Wallack - Ossining NY, US

B01J031/00

502/127000, 502/118000, 502/102000, 502/103000, 502/125000

A polypropylene catalyst (no more than 2 wt % titanium) contains at least one titanium-halogen bond-containing compound, internal donor, and activated, amorphous magnesium dihalide support, essentially free of alkoxy functionality. It is made by combining and heating titanium tetrachloride, magnesium halide precursor compound, and internal electron donor, in alkylbenzene solvent, to form an intermediate product; washing that product with an aromatic hydrocarbon solvent at elevated temperature producing a washed product; decantation of supernatant; treating the washed product with titanium tetrachloride in an alkylbenzene solvent to form a treated product and a supernatant; heating of that product and supernatant; decantation of the supernatant; washing of the treated product with an aromatic hydrocarbon solvent at elevated temperature; decantation of the supernatant; washing of the treated product with an aromatic hydrocarbon solvent; and addition of an aliphatic hydrocarbon solvent to the treated product with decantation of the solvent therefrom to form the catalyst.

4312782, Jan 26, 1982

May 12, 1980

6/148078

Robert Mink - Yonkers NY
Ronald Epstein - Yonkers NY

Stauffer Chemical Company - Westport CT

C08F 464

252429B

A novel catalyst system for the polymerization of alpha-olefins is provided. The catalyst system comprises: (a) an organoaluminum containing component, e. g. triethyl aluminum, and (b) a titanium halide containing component. The titanium halide containing component is obtained by copulverizing a halogen containing magnesium compound, e. g. MgCl. sub. 2, with an active hydrogen containing organic compound, e. g. phenol, to produce a copulverized product. The copulverized product is then reacted with an organometallic compound of a metal of Groups I to III of the Periodic Table, e. g. triethyl aluminum, to produce a reaction product. The reaction product is then copulverized with a complex of a first titanium halide compound and an electron-donor, e. g. TiCl. sub. 4. ethyl benzoate, to produce a solid reaction product. The solid reaction product is then reacted with a second titanium halide compound, e. g. TiCl. sub. 4.

4761499, Aug 2, 1988

Jun 2, 1987

7/056636

Ronald A. Epstein - Yonkers NY

Akzo America Inc. - New York NY

C07C 5114
C07C10200
C07C 6736

562520

High yields of olefinic esters and amides, and the like are derived from a process wherein vinyl dihalides are carbonylated in the presence of a palladium catalyst and a primary or secondary amine base or tertiary amine, depending on the desired product, and a solvent.

6288005, Sep 11, 2001

Sep 28, 1994

8/314568

Elliot I. Band - North Tarrytown NY
Ronald A. Epstein - Upper Montclair NJ

Akzo N.V.

B01J 3100

502116

A catalyst component, adapted for use in the polymerization and copolymerization of ethylene, is formed by reaction of an organomagnesium compound with a metal oxide support to form a supported organomagnesium composition, reaction of the supported organomagnesium composition and a tetraalkyl silicate, contact of the resulting product with a chlorinating reagent, and treatment of the product from the previous step with liquid titanium halide.

4347160, Aug 31, 1982

Jun 27, 1980

6/163615

Ronald A. Epstein - Yonkers NY
Robert I. Mink - Yonkers NY

Stauffer Chemical Company - Westport CT

C08F 464

252429B

A novel catalyst system for the polymerization of alpha-olefins is provided. The catalyst system comprises: (a) an organoaluminum containing component, e. g. triethyl aluminum, and (b) a titanium halide containing component. The titanium halide containing component is obtained by co-pulverizing a halogen containing magnesium compound, e. g. MgCl. sub. 2, with an electron-donor compound, e. g. ethyl benzoate, to produce a co-pulverized product. The co-pulverized product is then reacted with an organic phosphite, e. g. triphenyl phosphite, to produce a reaction product. The reaction product is then reacted with a titanium halide compound, e. g. TiCl. sub. 4. A novel titanium halide containing component is provided as well as a process for producing said component. A process for the polymerization of alpha-olefins is also provided.

4614729, Sep 30, 1986

Oct 26, 1984

6/665239

Janet E. Crawford - No. White Plains NY
Ronald A. Epstein - Yonkers NY
Kelly B. Triplett - Stamford CT

Stauffer Chemical Company - Westport CT

B01J 3112
B01J 3114

502401

Supported organometallic compounds of Groups II, III and IV of the Periodic Table are utilized for purifying fluids particularly hydrocarbon fluids, noble gases, nitrogen and hydrogen and desirable hydrocarbon solvents and olefins to remove impurities such as oxygen, sulfur, halogen-containing compounds, active hydrogen compounds and other polar compounds. The supported organometallic compounds, preferably supported metal alkyls, are prepared by reacting the pretreated dried solid support material with the organometallic compounds in such a manner as to effect loading or impregnation of the organometallic moieties onto the support.

4713484, Dec 15, 1987

Dec 22, 1986

6/945257

Ronald A. Epstein - Yonkers NY

Stauffer Chemical Company - Westport CT

C07C 5114

562406

A process for preparing carboxylic acid salts by the reaction of carbon monoxide with substituted or unsubstituted aromatic halides or an aliphatic organic halide. The process comprises the catalytic single phase carbonylation of the halide utilizing in addition to carbon monoxide, a palladium catalyst, an excess of tertiary phosphine, optionally an amine compound, with an alkali metal or alkaline earth metal base added during the reaction to form the salt.