Irwin M Lachman

US Patent:

46312692, Dec 23, 1986

Filed:

May 31, 1985

Appl. No.:

6/739627

Inventors:

Irwin M. Lachman - Corning NY
Lawrence A. Nordlie - Corning NY

Assignee:

Corning Glass Works - Corning NY

International Classification:

B01J 2112
B01J 2028

US Classification:

502439

Abstract:

Monolithic catalyst support structures in which a support phase of high surface area oxide material is disposed on or within a sintered ceramic material are improved by using a mixture of alumina and silica as the high surface area oxide support phase. The mixtures of alumina and silica retain higher surface area, after firing or exposure to elevated service temperatures, than does either component individually, and thereby impart higher overall surface area to the monolithic support structures.

US Patent:

49022164, Feb 20, 1990

Filed:

Sep 8, 1987

Appl. No.:

7/094148

Inventors:

George M. Cunningham - Horseheads NY
Rodney I. Frost - Corning NY
Irwin M. Lachman - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

B29C 4730

US Classification:

425463

Abstract:

Secondary discharge slots are cut into the face of newly made or used extrusion dies such that the secondary discharge slots communicate transversely and longitudinally with primary discharge slots but do not communicate with the feed holes. The novel extrusion die arrangement is set forth for the production of ceramic honeycomb structures which produce a greater number of cells per square inch, protrusions on the cell walls, or a combination of both dependent upon the Primary Slots' Volume to Secondary Slots' Volume ratio. The secondary discharge slots can produce honeycomb substrates with much greater surface areas, using an extrusion die with a significantly reduced number of feed holes and a greater number of discharge slots.

US Patent:

53568524, Oct 18, 1994

Filed:

Jan 13, 1993

Appl. No.:

8/003794

Inventors:

Evelyn M. DeLiso - Corning NY
Irwin M. Lachman - Corning NY
Mallanagouda D. Patil - Corning NY
Kenneth E. Zaun - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

B01J 2028
B01J 2026
B01J 2020

US Classification:

502402

Abstract:

Thin-walled honeycomb structures of activated carbon, useful for the adsorption of hydrocarbon vapors are prepared without the need for firing or sintering at elevated temperatures. The structures are prepared by forming a substantially homogeneous batch from an admixture of thermally gellable cellulose ether and/or derivative thereof such as methylcellulose, an additional organic binder such as a polyvinyl alcohol resin, and particles of activated carbon; plasticizing the batch with liquid, extruding the batch into a honeycomb shape; and drying the extruded shape at a temperature up to about 225. degree. C.

US Patent:

60890142, Jul 18, 2000

Filed:

Jun 8, 1990

Appl. No.:

7/535323

Inventors:

John P. Day - Big Flats NY
Rodney I. Frost - Corning NY
Louis S. Socha - Painted Post NY
Irwin M. Lachman - Corning NY
Mallanagouda D. Patil - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

C01B 2120
F01N 300
F01N 302

US Classification:

60274

Abstract:

An engine exhaust system is disclosed which in operation is capable of substantially reducing the quantities of hydrocarbons emitted to the atmosphere during engine start-up. The system utilizes molecular sieve means, such as a high-silica zeolite, which function to adsorb hydrocarbons emitted during engine start-up, before the catalytic converter has attained its effective operating temperature. The system is designed so that, once the catalytic converter has attained an effective operating temperature, the hydrocarbons can be desorbed from the molecular sieve means and conveyed to the converter for conversion to non-toxic by-products.

US Patent:

52602419, Nov 9, 1993

Filed:

Aug 12, 1992

Appl. No.:

7/928337

Inventors:

William P. Addiego - Big Flats NY
Irwin M. Lachman - Corning NY
Mallanagouda D. Patil - Corning NY
Jimmie L. Williams - Painted Post NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

B01J 2104
B01J 2716
B01J 2718
B01J 27185

US Classification:

502 60

Abstract:

A phosphate-Al. sub. 2 O. sub. 3 material is disclosed wherein the phosphate is homogeneously dispersed throughout, the specific surface area as measured by N. sub. 2 BET method is at least about 50 m. sup. 2 /g, and the average pore radius is no greater than about 200. ANG. A method is disclosed for producing the material which comprises forming a precursor material by wet-mixing a phosphate yielding species and an aluminum oxide yielding species which can be aluminum oxide, aluminum hydroxylated oxides, aluminum hydroxide, aluminum alkoxides, and combinations thereof, in amounts sufficient to result in an AlPO. sub. 4 content of about 3 to 12 percent by weight in the phosphate-Al. sub. 2 O. sub. 3, drying and heat-treating the precursor material at a temperature and for a time sufficient to form the phosphate- Al. sub. 2 O. sub. 3. The material is used as a support for catalyst metals.

US Patent:

41915836, Mar 4, 1980

Filed:

Sep 22, 1978

Appl. No.:

5/944856

Inventors:

William H. Armistead - Corning NY
Irwin M. Lachman - Corning NY

Assignee:

Corning Glass Works - Corning NY

International Classification:

C03C 322

US Classification:

106 396

Abstract:

Glass-ceramic products having a manganese-containing cordierite crystal structure and being impervious void free bodies exhibiting low coefficients of thermal expansions of. about. 15. times. 10. sup. -7 /. degree. C. (25. degree. -1000. degree. C. ) and high electrical resistivity are obtained by the sintering of glass or glass-ceramic powders having the molar composition of about 2RO. 2Al. sub. 2 O. sub. 3. 5SiO. sub. 2, wherein RO is a combination of MgO and MnO.

US Patent:

53345703, Aug 2, 1994

Filed:

Jul 21, 1992

Appl. No.:

7/914473

Inventors:

Patricia A. Beauseigneur - Waverly NY
Irwin M. Lachman - Corning NY
Mallanagouda D. Patil - Corning NY
Srinivas H. Swaroop - Painted Post NY
Raja R. Wusirika - Painted Post NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

B01J 3510
B01J 3702
B01J 2104
B01J 2106

US Classification:

502304

Abstract:

A porous catalyst support which may be used in a catalytic converter for treating automotive exhaust gases. The support comprises a substrate having a multichannel structure of generally thin walls and washcoat particles of colloidal particle size mainly or wholly within the pores of the walls so as to increase open frontal area and reduce back pressure. Substrate is either ceramic or metal. In a ceramic substrate with microcracks in the walls, the washcoat colloidal dispersion is free of soluble inorganic constituents and the particles do not fill the microcracks so as to prevent undesirable increase in thermal expansion and corresponding decrease in thermal shock resistance.

US Patent:

52156907, Jun 1, 1993

Filed:

Dec 24, 1990

Appl. No.:

7/632922

Inventors:

Carlo M. Golino - Evergreen CO
Sandra L. Hagg - Corning NY
Irwin M. Lachman - Corning NY
Lawrence A. Nordlie - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

B29C 6720
C01B 3102
C01B 3104

US Classification:

264 296

Abstract:

A method of forming an activated carbon or graphite structure is provided by (1) forming, such as extrusion, of a plasticized mixture of: binder selected from cellulose ether and derivative thereof, starch, and mixture thereof; furfuryl alcohol and/or polyfurfuryl alcohol; and carbon, graphite, or a carbon-containing material; and (2) subjecting the formed mixture to a carbon-forming pyrolysis step. The use of furfuryl alcohol allows extrusion at ambient temperatures and provides a "reactive" solvent that provides carbon upon pyrolysis.