1
Donald H Powers: Olefin production utilizing whole crude oil. Equistar Chemicals, Roderick W MacDonald, June 1, 2004: US06743961 (53 worldwide citation)

A method for utilizing whole crude oil as a feedstock for the pyrolysis furnace of an olefin production plant wherein the feedstock after preheating is subjected to mild cracking conditions until substantially vaporized, the vapors from mild cracking being subjected to severe cracking in the radiant ...


2
Donald H Powers Jr: Electromagnetic shielding. Chomerics, Sewall P Bronstein, Donald Brown, March 6, 1984: US04434541 (29 worldwide citation)

Electromagnetic energy shielding material in forms such as form stable gaskets, caulking compounds, coatings, adhesives, etc., the material being composed of a plastic binder and electrically conductive particles having an aluminum core, a first metallic layer thereover e.g., of tin and a silver out ...


3
Donald H Powers Jr: Electromagnetic shielding. Chomerics, Wolf Greenfield & Sacks, March 26, 1985: US04507359 (22 worldwide citation)

Electromagnetic energy shielding material in forms such as form stable gaskets, caulking compounds, coatings, adhesives, etc., the material being composed of a plastic binder and electrically conductive particles having an aluminum core, a first metallic layer thereover e.g., of tin and a silver out ...


4
Donald H Powers: Olefin production utilizing whole crude oil and mild controlled cavitation assisted cracking. Equistar Chemicals, Roderick W MacDonald, December 27, 2005: US06979757 (19 worldwide citation)

A method for utilizing whole crude oil as a feedstock for the pyrolysis furnace of an olefin production plant wherein the feedstock after preheating is subjected to mild thermal cracking assisted with controlled cavitation conditions until substantially vaporized, the vapors being subjected to sever ...


5
Donald H Powers, Brendan D Murray, Bruce H C Winquist: Process for isomerizing linear olefins to isoolefins. Equistar Chemicals, Oblon Spivak McClelland Maier & Neustadt P C, August 29, 2000: US06111160 (15 worldwide citation)

This invention provides a process to convert linear alkenes such as butene-1 and butene-2 to methyl branched chain alkenes such as isobutylene using one-dimensional, medium pore zeolite catalysts and similar type catalysts such as SAPO's and MeAPO's. The pore size for the catalyst should be greater ...


6
Donald H Powers, Brendan D Murray, Bruce H C Winquist: Process for isomerizing linear olefins to isoolefins. Equistar Chemicals, Tim L Burgess, November 27, 2001: US06323384 (15 worldwide citation)

This invention provides a process to convert linear alkenes such as butene-1 and butene-2 to methyl branched chain alkenes such as isobutylene using the hydrogen form of ferrierite. The hydrogen form of ferrierite has a pore size which allows the branched chain alkenes to form and diffuse out of the ...


7
Donald H Powers Jr: Electromagnetic shielding. Chomerics, Wolf Greenfield & Sacks, September 6, 1988: US04769280 (12 worldwide citation)

Electromagnetic energy shielding material in forms such as form stable gaskets, caulking compounds, coatings, adhesives, etc., the material being composed of a plastic binder and electrically conductive particles having an aluminum core, a first metallic layer thereover e.g., of tin and a silver out ...


8
Donald H Powers: Olefin production utilizing whole crude oil and mild catalytic cracking. Equistar Chemicals, Roderick W MacDonald, March 28, 2006: US07019187 (11 worldwide citation)

A method for utilizing whole crude oil as a feedstock for the pyrolysis furnace of an olefin production plant wherein the feedstock after preheating is subjected to mild catalytic cracking conditions until substantially vaporized, the vapors from the mild catalytic cracking being subjected to severe ...


9
Robert S Bridges, Donald H Powers, Steven T Coleman: Propylene production. Equistar Chemicals, Roderick W MacDonald, March 29, 2005: US06872862 (9 worldwide citation)

A method for making propylene from alpha olefins, internal linear olefins and isoolefins wherein the alpha olefins are subjected to a combination of hydrogenation and double bond isomerization to form additional internal linear olefins, the internal linear olefins are separated from the isoolefins a ...


10
Donald H Powers: Olefin production utilizing whole crude oil feedstock. Equistar Chemicals, Roderick W MacDonald, May 20, 2008: US07374664 (8 worldwide citation)

A method for utilizing whole crude oil as a feedstock for the pyrolysis furnace of an olefin production plant wherein the feedstock is subjected to vaporization conditions until substantially vaporized with minimal mild cracking but leaving some remaining liquid from the feedstock, the vapors thus f ...