SELDON LAFOY DOTSON
Pilots at Woodland Park Dr, Parkersburg, WV
License number
West Virginia A3903198
Issued Date
Aug 2016
Expiration Date
Aug 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
38 Woodland Park Dr, Parkersburg, WV 26104
Professional information
Impact Modifier For High Nitrile Resins And Impact Modified Nitrile Resin Compositions
US Patent:
5532318, Jul 2, 1996
Filed:
Sep 26, 1994
Appl. No.:
8/312376
Inventors:
Seldon L. Dotson - Parkersburg WV
Assignee:
General Electric Company - Pittsfield MA
International Classification:
C08L 5104
US Classification:
525 83
Abstract:
The high nitrile graft copolymer is provided and a high nitrile resin composition impact modified thereby is also provided. Brittle high nitrile resins can be effectively impact modified by the addition of a high nitrile graft copolymer thereto. The high nitrile graft copolymer contains a rubber substrate and a polymeric graft portion superstrate. The substrate contains high levels of diene and amounts of vinyl cyanide and alkylmethacrylate. The polymeric graft portion (superstate) contains high level of vinyl cyanide and a vinyl aromatic hydrocarbon. The high nitrile resin composition is useful as a resin for making chemical resistant high impact molded articles.
Vinyl Cyanide And Vinyl Aromatic Monomers-Grafted Nitrile Rubber
US Patent:
5599880, Feb 4, 1997
Filed:
Apr 8, 1996
Appl. No.:
8/629258
Inventors:
Seldon L. Dotson - Parkersburg WV
Assignee:
General Electric Company - Pittsfield MA
International Classification:
C08F27904, C08L 3310, C08L 3312
US Classification:
525316
Abstract:
The high nitrile graft copolymer is provided and a high nitrile resin composition impact modified thereby is also provided. Brittle high nitrile resins can be effectively impact modified by the addition of a high nitrile graft copolymer thereto. The high nitrile graft copolymer contains a rubber substrate and a polymeric graft portion superstrate. The substrate contains high levels of diene and amounts of vinyl cyanide and alkylmethacrylate. The polymeric graft portion (superstate) contains high level of vinyl cyanide and a vinyl aromatic hydrocarbon. The high nitrile resin composition is useful as a resin for making chemical resistant high impact molded articles.
High Impact Polystyrene Containing Polyphenylene Oxide
US Patent:
6177512, Jan 23, 2001
Filed:
Aug 2, 1999
Appl. No.:
9/365434
Inventors:
Loren K. Gibbons - Pointe aux Pins MI
Jeffrey Silloway - Marietta OH
Jason J. Miller - Cutler OH
Michael J. Hanner - Marietta OH
Seldon L. Dotson - Parkersburg WV
Jeffrey Silloway - Marietta OH
Jason J. Miller - Cutler OH
Michael J. Hanner - Marietta OH
Seldon L. Dotson - Parkersburg WV
Assignee:
Chevron Chemical Company LLC - San Francisco CA
International Classification:
C08F27902, C08L 5104, C08L 5502
US Classification:
525 53
Abstract:
In the present invention, a process is provided for producing high impact polystyrene of improved heat resistance. According to the invention, after phase inversion of the rubber-polystyrene system, a slurry of PPE in styrene is added in situ to the process. The PPE slurry in styrene contains greater than 15 wt. % of PPE and is introduced to the process at point past rubber phase inversion, preferably at point where total polymer solids is greater than 40 wt. % of the total weight of the polymerization mixture. Preferably, four continuous stirred tank reactors in series are used in the process and preferably the slurry of PPE in styrene monomer is introduced to the third CSTR.
High Impact And Low Crease Stress Whitening Abs Blends
US Patent:
5430100, Jul 4, 1995
Filed:
Mar 3, 1994
Appl. No.:
8/205973
Inventors:
Seldon L. Dotson - Parkersburg WV
Larry B. Simmons - Washington WV
Larry B. Simmons - Washington WV
Assignee:
General Electric Company - Pittsfield MA
International Classification:
C08L 5104
US Classification:
525 71
Abstract:
Blends of ABS polymers with different substrate particle sizes are disclosed having a desirable balance of impact resistance, crease stress whitening, and melt viscosity. These compositions are useful in thin guage ABS films.