Arnold M Rosenberg

US Patent:

43550797, Oct 19, 1982

Filed:

Apr 21, 1981

Appl. No.:

6/256221

Inventors:

Arnold M. Rosenberg - Potomac MD
James M. Gaidis - Ellicott City MD

Assignee:

W. R. Grace & Co. - New York NY

International Classification:

B32B 900
B32B 1504

US Classification:

428469

Abstract:

This invention is directed to coating metal elements with a thin film of calcium nitrite (including compositions containing same) whereby the metal is inhibited against corrosion on being placed in hydraulic cement.

US Patent:

40921093, May 30, 1978

Filed:

Jun 28, 1976

Appl. No.:

5/700343

Inventors:

Arnold Morry Rosenberg - Potomac MD
James Michael Gaidis - Ellicott City MD

Assignee:

W. R. Grace & Co. - New York NY

International Classification:

C23F 1104
C23F 1108
C23F 902
C09K 318

US Classification:

21 25R

Abstract:

A method of use of calcium nitrite in corrosion control in hydraulic cements that contain metal pieces or structures, and in certain related uses, e. g. , snow removal from alite cement bridge decking.

US Patent:

42948134, Oct 13, 1981

Filed:

Sep 23, 1980

Appl. No.:

6/189993

Inventors:

James M. Gaidis - Ellicott City MD
Arnold M. Rosenberg - Potomac MD

Assignee:

W. R. Grace & Co. - New York NY

International Classification:

C01B 2120
C01D 900

US Classification:

423385

Abstract:

Disclosed herein is a process for preparing aqueous solutions of calcium nitrite by forming a solution of sodium nitrite and calcium nitrate; cooling the solution to precipitate sodium nitrate; admixing calcium hydroxide with the residual aqueous phase and forming a double salt of calcium nitrite/calcium hydroxide; and decomposing the double salt in the presence of water to form a solution of calcium nitrite and insolubilize calcium hydroxide.

US Patent:

55203329, May 28, 1996

Filed:

Mar 7, 1995

Appl. No.:

8/400631

Inventors:

James M. Gaidis - Ellicott City MD
Brian S. Gilbert - Columbia MD
Arnold M. Rosenberg - Potomac MD

Assignee:

W. R. Grace & Co. - Conn. - New York NY

International Classification:

B05B 706

US Classification:

239 8

Abstract:

A method and apparatus for controlling the flow rate of relatively low viscosity fluids, such as accelerators, in viscous, hydraulic slurry spray application systems. An adjustable accelerator flow control system which regulates excess air pressure supplied to the accelerator pump in response to height variations of the spray nozzle is provided. The system is especially useful with fireproofing compositions since it provides effective distribution and constant flow of a viscous, hydraulic cementitious slurry with an acidic accelerator.

US Patent:

48880582, Dec 19, 1989

Filed:

Sep 29, 1986

Appl. No.:

6/912018

Inventors:

Arnold M. Rosenberg - Potomac MD
James M. Gaidis - Ellicott City MD
Lawrence J. Kindt - Woodbine MD

Assignee:

W. R. Grace & Co.-Conn. - New York NY

International Classification:

C04B 1404
C04B 2216
C04B 2406

US Classification:

106 98

Abstract:

A stable, aqueous dispersion of silica fume is formed using a 70-80% ferrosilicon production fume by-product by the inclusion of very small amounts of a stabilizing agent selected from a phosphoric acid, citric acid, hydrofluoric, fluorosilicic acid or their sodium or potassium salts or mixtures thereof.

US Patent:

42857333, Aug 25, 1981

Filed:

Feb 22, 1980

Appl. No.:

6/123741

Inventors:

Arnold M. Rosenberg - Potomac MD

Assignee:

W. R. Grace & Co. - New York NY

International Classification:

C04B 702

US Classification:

106 98

Abstract:

This invention is directed to a concrete which is capable of inhibiting corrosion of metal pieces contained therein or in contact therewith comprising a high strength concrete formed from hydraulic cement and containing at least about 2 percent Ca(NO. sub. 2). sub. 2 therein.

US Patent:

41728300, Oct 30, 1979

Filed:

Nov 14, 1977

Appl. No.:

5/851066

Inventors:

Arnold M. Rosenberg - Potomac MD
James M. Gaidis - Ellicott City MD

Assignee:

W. R. Grace & Co. - New York NY

International Classification:

B32B 700

US Classification:

428245

Abstract:

A novel preformed, sheet-like, flexible material suitable for waterproofing or substructural surfaces, the sheet-like material having a laminate structure of (1) a waterproof and waterproofing pressure-sensitive adhesive membrane having a surface of predetermined width extending from edge to edge of said membrane; and (2) a support covering said entire predetermined width of said surface, said support comprising (a) a major flexible support sheet superimposed on a major portion of said surface, and (b) at least one minor support sheet, each of said at least one minor support sheets extending from one of said edges toward the major support sheet. The flexible polymeric support covering the major portion of the membrane's covered surface has its free face substantially non-adherent to the composition of the waterproofing adhesive membrane. Each of the flexible polymeric support(s) covering the minor portion(s) of the membrane's covered surface has both faces substantially non-adherent to the waterproofing adhesive membrane. The novel structural material can be in the form of rolls comprising alternate layers of membrane and support coverings which can be readily applied to a substructure by unrolling and removing the support sheet covering the minor portion of the membrane.

US Patent:

41101200, Aug 29, 1978

Filed:

Jun 28, 1976

Appl. No.:

5/699679

Inventors:

Arnold M. Rosenberg - Potomac MD
James M. Gaidis - Ellicott City MD

Assignee:

W. R. Grace & Co. - New York NY

International Classification:

C04B 702

US Classification:

106 99

Abstract:

Improved method of forming zinc chromate on galvanized reinforcing bars comprising treating the bar directly with calcium chromate.

Address:

11836 Goya Dr, Potomac, MD 20854

Phone:

301-340-7368

VIN:

5GAER23D89J186935

Make:

BUICK

Model:

ENCLAVE

Year:

2009

Address:

11836 Goya Dr, Potomac, MD 20854

VIN:

1G4HD57257U180408

Make:

BUICK

Model:

LUCERNE

Year:

2007