Nelson T Severinghaus, 926 Foxhall Close, Nashville, TN 37215
Nelson Severinghaus Phones & Addresses
6 Foxhall Close, Nashville, TN 37215
3687 Gulf Dr, Sanibel, FL 33957 239-3950755
Mentions for Nelson T Severinghaus
Publications & IP owners
Us Patents
Method Of Tinting A Mineral Filler
US Patent:
4661164, Apr 28, 1987
Filed:
Feb 15, 1985
Appl. No.:
6/702004
Inventors:
Nelson Severinghaus - Nashville TN
Assignee:
Franklin Industries, Inc. - Nashville TN
International Classification:
C04B 1400
US Classification:
106288B
Abstract:
A method of increasing the whiteness of a mineral filler, such as limestone, having a natural yellow tint, including the grinding of the limestone to a pulverulent size and introducing into the limestone, preferably while it is being ground, a blue pigment in an amount sufficient to optically transform the natural yellow tint to a predetermined degree of whiteness.
Method And Product Of Calcium Sulfate Dihydrate As Filler In Aqueous Polymer Dispersions
US Patent:
5340392, Aug 23, 1994
Filed:
Apr 24, 1992
Appl. No.:
7/911631
Inventors:
C. Eric Westbrook - Dalton GA
Nelson Severinghaus - Nashville TN
Nelson Severinghaus - Nashville TN
Assignee:
Franklin Industries, Inc. - Nashville TN
International Classification:
C09C 102
US Classification:
106471
Abstract:
This invention relates to a method and composition for the incorporation of gypsum as a filler material in aqueous polymer dispersions by means of the addition of a detergent selected from the group consisting of ammonium lauryl sulfate, sodium lauryl sulfate, ammonium laureth sulfate, and sodium laureth sulfate.
Method Of Bleaching Limestone
US Patent:
4824653, Apr 25, 1989
Filed:
Sep 29, 1988
Appl. No.:
7/250551
Inventors:
Nelson Severinghaus - Nashville TN
Gregory R. Sharp - Anchorage AK
Gregory R. Sharp - Anchorage AK
Assignee:
Franklin Industries, Inc. - Nashville TN
International Classification:
C01F 524
C01F 1118
C01F 1106
C09C 102
C01F 1118
C01F 1106
C09C 102
US Classification:
423430
Abstract:
A method for improving the brightness of limestone utilizing a chelating agent and a bleaching agent in a limestone slurry in which the pH of the slurry is normally between 9. 0 and 9. 6.
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