Richard W Neuzil

US Patent:

20130158156, Jun 20, 2013

Filed:

Dec 23, 2009

Appl. No.:

13/261341

Inventors:

Hao-Wen Chiu - St. Petersburg FL, US
Richard Neuzil - Seminole FL, US
Timothy E. Herod - St. Petersburg FL, US

Assignee:

Essilor International (Compagnie generale d'Optique - Charenton-Le-Pont

International Classification:

C08K 5/134
C08K 5/3417
C08K 5/3435

US Classification:

523105, 524720

Abstract:

Method of producing a thermoplastic polyurethane having a light stabilization useful for ophthalmic applications, comprising combining precursors of a polyurethane and at least one antioxidant, and incorporating therein, either before, during or after polymerization, at least one light stabilizer, said method being characterized in that the antioxidant is benzenepropanoic acid, 3(1,1-dimethylethyl)-4-hydroxy-5-methyl-1,1′-[1,2-ethanediylbis(oxy-2,1-ethanediyl)]ester and the light stabilizer is bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]butylmalonate together with at least one additional component chosen from among phenol, 2-(5-chloro-2H-benzotriazole-2-yl)-6-(1,1-dimethylethyl)-4-methyl and 2,2′-methylenebis(6-(2H-benzotriazol-2-yl)-4-1,1,3,3-tetramethylbutyl)phenol).

US Patent:

40481115, Sep 13, 1977

Filed:

Jun 7, 1976

Appl. No.:

5/693656

Inventors:

Donald H. Rosback - Elmhurst IL
Richard W. Neuzil - Downers Grove IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

B01J 2906

US Classification:

252455Z

Abstract:

A method for the production of an adsorbent, having increased capacity for olefins and decreased catalytic activity for polymerization and isomerization, useful in the separation of olefins from a hydrocarbon mixture comprising olefins and paraffins. The methods basically comprises contacting a precursor mass comprising sodium X or sodium Y zeolite and amorphous material selected from the group consisting of silica, alumina and silica-alumina mixtures and compounds as a binder with an aqueous sodium hydroxide solution to increase the sodium cation content of the zeolite and to remove a small portion of silica and alumina; washing the zeolite with water to remove excess caustic solution; and, drying the zeolite to reduce the volatile content.

US Patent:

44422857, Apr 10, 1984

Filed:

May 4, 1982

Appl. No.:

6/374819

Inventors:

Richard W. Neuzil - Downers Grove IL
James W. Priegnitz - Elgin IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

C07H 106
C13K 100

US Classification:

536127

Abstract:

A process for separating a glucose from a feed mixture comprising glucose and fructose which process comprises contacting the mixture with an adsorbent comprising an X zeolite containing potassium cations at the exchangeable cationic sites thereby selectively adsorbing glucose from the feed mixture and thereafter recovering the glucose. Preferably the glucose will be recovered by desorption from the adsorbent with a desorbent material.

US Patent:

45295514, Jul 16, 1985

Filed:

Jun 6, 1983

Appl. No.:

6/501732

Inventors:

Michael T. Cleary - Elmhurst IL
Santi Kulprathipanja - Hoffman Estates IL
Richard W. Neuzil - Downers Grove IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

C11C 108

US Classification:

260419

Abstract:

This invention comprises a process for separating oleic acid from a feed mixture comprising an oleic acid and linoleic acid, which process comprises contacting the mixture at separation conditions with a molecular sieve comprising silicalite, thereby selectively retaining the oleic acid. The oleic acid is recovered from the molecular sieve by displacement with a displacement fluid comprising a diluent soluble in the feed mixture and having a polarity index of at least 3. 5. Displacement occurs at a temperature from about 120. degree. C. to about 150. degree. C. The feed mixture may also contain rosin acids in which case a first molecular sieve comprising silicalite is used to separate the fatty acids from the rosin acids.

US Patent:

47402199, Apr 26, 1988

Filed:

May 1, 1986

Appl. No.:

6/858321

Inventors:

Santi Kulprathipanja - Hoffman Estates IL
Richard W. Neuzil - Downers Grove IL
Norman N. Li - Arlington Heights IL

Assignee:

Allied-Signal Inc. - Morristown NJ

International Classification:

B01D 5322

US Classification:

55 16

Abstract:

A fluid feed mixture, either liquid or gaseous in nature, may be subjected to a gas enrichment separation process. The process is effected by contacting the mixture with the upstream face of a mixed matrix membrane which comprises an organic polymer having a solid particulate adsorbent incorporated therein, the permeability coefficient of the organic polymer being compatible with the permeability coefficient of the adsorbent. The permeate which emanates from the downstream face of the membrane comprises a fluid product mixture in which the proportion of the first fluid component of the feed mixture, which possesses a greater steady state permeability in relation to the second fluid component, is greater than the proportion present in the original fluid feed mixture.

US Patent:

44839804, Nov 20, 1984

Filed:

Sep 14, 1983

Appl. No.:

6/532248

Inventors:

Richard W. Neuzil - Downers Grove IL
James W. Priegnitz - Elgin IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

C07H 106

US Classification:

536127

Abstract:

A process for the recovery of glucose from an aqueous mixture of glucose and polysaccharides. The mixture is contacted with an X zeolite containing potassium cations at exchangeable cationic sites and selectively adsorbing glucose in the zeolite. The polysaccharides are removed from the zeolite and the adsorbed glucose recovered by means of a desorbent liquid. Preferred systems for effecting the process are countercurrent and co-current simulating moving beds.

US Patent:

44554443, Jun 19, 1984

Filed:

Nov 12, 1982

Appl. No.:

6/441142

Inventors:

Santi Kulprathipanja - Hoffman Estates IL
Richard W. Neuzil - Downers Grove IL

Assignee:

Uop Inc. - Des Plaines IL

International Classification:

C07C 712

US Classification:

585826

Abstract:

A process for separating a normal paraffin hydrocarbon from a mixture of the same with a cyclic and/or branched chain paraffin hydrocarbon. The process comprises contacting the mixture at a temperature of from about 120. degree. C. to about 140. degree. C. with a zeolite free molecular sieve comprising silicalite. The normal paraffin hydrocarbon is selectively retained and will preferably be recovered from the molecular sieve by displacement with a displacement material.

US Patent:

45240299, Jun 18, 1985

Filed:

Sep 22, 1983

Appl. No.:

6/534911

Inventors:

Michael T. Cleary - Elmhurst IL
Santi Kulprathipanja - Hoffman Estates IL
Richard W. Neuzil - Downers Grove IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

C11C 108

US Classification:

260419

Abstract:

This invention comprises a process for separating a saturated fatty acid from a feed mixture comprising saturated and unsaturated fatty acids, which process comprises contacting the mixture at separation conditions with a molecular sieve comprising a crystalline silica, thereby selectively retaining the saturated fatty acid. The saturated fatty acid is recovered from the molecular sieve by displacement at displacement conditions with a displacement fluid comprising a diluent soluble in the feed mixture and having a polarity index of at least 3. 5. Amorphous silica is a preferred binder for the molecular sieve.