Lloyd W. Marsden
Engineers at Airway Pl, Sheridan, WY

License number
South Dakota 3018
Expiration Date
Dec 31, 2018
Category
Professional Engineer
Type
Mechanical
Address
Address
3 Airway Pl, Sheridan, WY 08281
Phone
(307) 752-7488

Professional information

Lloyd Marsden Photo 1

Polymeric Stabilization Composition And Method

US Patent:
2004020, Oct 21, 2004
Filed:
Apr 15, 2004
Appl. No.:
10/826122
Inventors:
Lloyd Marsden - Sheridan WY, US
Assignee:
Rantec Corporation - Ranchester WY
International Classification:
C04B024/00
US Classification:
405/264000, 106/900000
Abstract:
Embodiments of the present invention are methods and chemical compositions of polymers and crosslinking agents that are particularly suited to aggregate, including soil and other natural aggregates, stabilization via hydraulic application. The present invention is an improvement over existing methods as it provides effective stabilization for longer periods. The compositions, when in an aqueous solution and applied to soil or aggregate surfaces, penetrate the surface polymerize and form a crosslinked polymer film. Individual aggregate particles may bind to the polymer or may be entrapped by the polymer film. In the environment, the film is substantially resistant, in the near term, to biodegradation and natural, physical degradation due to weathering and exposure. The resultant polymer film and aggregate or bonded fiber matrix resists erosion by strong wind and heavy rain but readily allows seeds to germinate and grow. The crosslinked film is also substantially insoluble but nevertheless is biodegradable over the long term, ultimately decaying into harmless products. In addition a procedure for control of viscosity in the field application is described making possible cost savings by reducing the amount of required water for delivery.


Lloyd Marsden Photo 2

Polymeric Stabilization Composition And Method

US Patent:
2005024, Nov 3, 2005
Filed:
Jun 2, 2005
Appl. No.:
11/144531
Inventors:
Lloyd Marsden - Sheridan WY, US
Assignee:
Rantec Corporation - Ranchester WY
International Classification:
C08K003/00
US Classification:
524612000
Abstract:
Embodiments of the present invention are methods and chemical compositions of polymers and crosslinking agents that are particularly suited to aggregate, including soil and other natural aggregates, stabilization via hydraulic application. The present invention is an improvement over existing methods as it provides effective stabilization for longer periods. The compositions, when in an aqueous solution and applied to soil or aggregate surfaces, penetrate the surface polymerize and form a crosslinked polymer film. Individual aggregate particles may bind to the polymer or may be entrapped by the polymer film. In the environment, the film is substantially resistant, in the near term, to biodegradation and natural, physical degradation due to weathering and exposure. The resultant polymer film and aggregate or bonded fiber matrix resists erosion by strong wind and heavy rain but readily allows seeds to germinate and grow. The crosslinked film is also substantially insoluble but nevertheless is biodegradable over the long term, ultimately decaying into harmless products. In addition a procedure for control of viscosity in the field application is described making possible cost savings by reducing the amount of required water for delivery.


Lloyd Marsden Photo 3

Tackifier And Modified Starch Formulation, System And Method

US Patent:
2013018, Jul 18, 2013
Filed:
Jan 18, 2013
Appl. No.:
13/745450
Inventors:
Lloyd Marsden - Sheridan WY, US
Assignee:
RANTEC CORPORATION - Ranchester WY
International Classification:
C08L 3/00
US Classification:
524 52
Abstract:
This disclosure describes formulations, systems and methods for a novel tackifier. The novel tackifier is composed of a modified starch and an acrylamide.