Harold P Swift from Stahlstown, PA

Us Patents

Silica-Based Particulates
view source
US Patent:

7253224, Aug 7, 2007
Filed:

Aug 1, 2002
Appl. No.:

10/208863
Inventors:

Shantilal M. Mohnot - Murrysville PA, US
Harold E. Swift - Gibsonia PA, US
James T. Dew - Sulphur LA, US
Assignee:

PPG Industries Ohio, Inc. - Cleveland OH
International Classification:

C08K 5/09
C08K 5/34
C08K 3/36
US Classification:

524284, 524492, 524493, 523220
Abstract:

A silica-based particulate material that may contain less than 5 wt. % of a multivalent cation and a method of preparing such a silica-based particulate material. The silica-based particulate material may be characterized as having a median particle size of at least 20 μm, a BET surface area of at least 90 m/g, and a pH of at least 9. 5; or as having a median particle size of up to 20 μm and a pH of at least 10. The silica-based particulate material may be used to make hydrophobic silica-based particulates, which may be characterized as having a pH of at least 10. 5.

Amorphous Precipitated Silica Abrasive
view source
US Patent:

57470030, May 5, 1998
Filed:

Mar 22, 1995
Appl. No.:

8/408327
Inventors:

Shantilal M. Mohnot - Murrysville PA
Harold E. Swift - Gibsonia PA
Thomas G. Krivak - Irwin PA
Robert H. Fear - Pittsburgh PA
Laura M. Randall - Pittsburgh PA
Laurence E. Jones - Pittsburgh PA
Assignee:

PPG Industries, Inc. - Pittsburgh PA
International Classification:

A61K 716
B01J 2300
C01B 3312
US Classification:

424 49
Abstract:

A statistically large population of particles of amorphous precipitated silica comprising pigmentary phase particles and glassy phase particles and having a glassy phase fraction in the range of from 0. 3 to 30 area percent is useful as an abrasive for dentifrice compositions, especially toothpaste.

Olefin Polymerization Process
view source
US Patent:

41536380, May 8, 1979
Filed:

Feb 10, 1978
Appl. No.:

5/876757
Inventors:

Paul G. Bercik - Trafford PA
Harold E. Swift - Gibsonia PA
Kirk J. Metzger - Pittsburgh PA
Assignee:

Gulf Research & Development Company - Pittsburgh PA
International Classification:

C07C 310
US Classification:

585526
Abstract:

C. sub. 2 -C. sub. 5 mono-olefins are polymerized in the presence of a metal-substituted synthetic mica montmorillonite catalyst to selectively form gasoline boiling range oligomer products containing from 5 to 12 carbon atoms and oligomer distillate products containing up to 24 carbon atoms and having a maximum distillation end point of about 750. degree. F. (399. degree. C. ).

Precipitated Silica Having High Sodium Sulfate Content
view source
US Patent:

56055692, Feb 25, 1997
Filed:

Nov 8, 1995
Appl. No.:

8/555552
Inventors:

James L. Boyer - Monroeville PA
Thomas G. Krivak - Harrison City PA
Harold E. Swift - Gibsonia PA
Robert C. Wang - Wexford PA
Assignee:

PPG Industries, Inc. - Pittsburgh PA
International Classification:

C04B 1404
C01B 3312
US Classification:

106482
Abstract:

Particles comprising particulate amorphous precipitated silica in association with from 5 to 10 percent by weight sodium sulfate and less than 10 percent by weight water, wherein the percentages are based on the weight of the silica, the sodium sulfate, and the water, which particles have a BET surface area of from 100 to 300 m. sup. 2 /g, a total intruded volume from 1. 8 to 3. 6 cm. sup. 3 /g, and a DBP oil absorption of from 180 to 320 cm. sup. 3 /100 g, may be employed in microporous battery separators to introduce all or a portion of the desired sodium sulfate to the battery electrolyte. Moreover the enhanced amount of sodium sulfate enhances silica characteristics and battery separator production.

Fluidized Bed Process For Producing Acrylonitrile And Catalytic Mixture Containing Antimony Oxide-Silica Composite Used Therein
view source
US Patent:

45459436, Oct 8, 1985
Filed:

Mar 4, 1981
Appl. No.:

6/240267
Inventors:

Robert A. Innes - Monroeville PA
Harold E. Swift - Monroeville PA
Assignee:

Gulf Research & Development Co. - Pittsburgh PA
International Classification:

C07C12014
US Classification:

2604653
Abstract:

Acrylonitrile is produced by passing a gaseous mixture comprising propylene, molecular oxygen and ammonia upwardly through a fluidized bed comprising particles of a highly-active acrylonitrile catalyst in physical admixture with particles of a composite consisting essentially of antimony oxide and silica. The use of the antimony oxide-silica composite moderates the effect of the highly-active acrylonitrile catalyst reducing its activity sufficiently to enable the use of longer residence times, but without reducing the acrylonitrile selectivity of the catalyst.

Dispersible Free Flowing Particulate Silica Composition
view source
US Patent:

60866691, Jul 11, 2000
Filed:

Apr 9, 1998
Appl. No.:

9/058393
Inventors:

Shailesh D. Patkar - Irwin PA
Harold E. Swift - Gibsonia PA
William B. Scott - Derry PA
Assignee:

PPG Industries Ohio, Inc. - Cleveland OH
International Classification:

C09C 128
US Classification:

106491
Abstract:

Describes a free flowing particulate composition comprising, in combination, particulate amorphous precipitated silica, e. g. , in the form of granules, hydrocarbon process oil, e. g. , an aromatic process oil, and organic carboxylic acid having from 2 to 30 carbon atoms, e. g. , stearic acid. The hydrocarbon process oil and organic carboxylic acid are sorbed on the silica and are present in amounts sufficient to measurably improve the dispersibility of the particulate amorphous precipitated silica into an elastomer as measured by percent white area. Optionally, an organosilane coupling agent may also be present in said composition. The free flowing particulate composition of the present invention is useful in reinforcing elastomers, e. g. , rubbers used in vehicle tires and the soles of athletic foot wear.

Wikipedia

George Swift (footballer)

view source

George Harold Swift (3 February 18701956) was an English footballer who won the FA Cup with Wolverhampton Wanderers, and was later the first secretary-manager