John C InghamTujunga, CA

4383129, May 10, 1983

May 21, 1982

6/380525

Amitava Gupta - Pasadena CA
John D. Ingham - La Crescenta CA
Andre H. Yavrouian - La Crescenta CA

California Institute of Technology - Pasadena CA

H01L 3104

136251

A polymer syrup for encapsulating solar cell assemblies. The syrup includes uncrosslinked poly(n-butyl)acrylate dissolved in n-butyl acrylate monomer. Preparation of the poly(n-butyl)acrylate and preparation of the polymer syrup is disclosed. Methods for applying the polymer syrup to solar cell assemblies as an encapsulating pottant are described. Also included is a method for solar cell construction utilizing the polymer syrup as a dual purpose adhesive and encapsulating material.

4118427, Oct 3, 1978

Jun 28, 1973

5/374810

Robert A. Rhein - La Canada CA
John D. Ingham - La Canada CA

California Institute of Technology - Pasadena CA

C07C 2900

568852

Production of hydroxyl-containing curable liquid hydrocarbon prepolymers by ozonizing a high molecular weight saturated hydrocarbon polymer such as polyisobutylene or ethylene-propylene rubber, followed by reducing the ozonized material; e. g. , by using reducing agents, preferably diisobutyl aluminum hydride, to form the above-noted hydroxyl-containing liquid prepolymers having a substantially lower molecular weight than the parent polymer. The resulting curable liquid hydroxyl-containing prepolymers can be poured into a mold and readily cured; e. g. ; with reactants such as toluene diisocyanate, to produce highly stable elastomers having a variety of uses such as binders for solid propellants.

4196129, Apr 1, 1980

Aug 14, 1978

5/933186

Robert A. Rhein - La Canada CA
John D. Ingham - La Crescenta CA

California Institute of Technology - Pasadena CA

C07D30789

2603463

A process for preparing dianhydrides that are miscible with hydroxyl prepolymers at moderate temperatures and can cure hydroxyl prepolymers to elastomers at moderate temperatures is disclosed. The dianhydrides are prepared by solution reaction of a prepolymer diol with excess dianhydride followed by removal of unreacted dianhydride. The prepolymer dianhydrides are miscible with hydroxyl substituted hydrocarbon prepolymers and cure the prepolymers to polyester-linked elastomers.

4374955, Feb 22, 1983

Jun 11, 1980

6/158575

Amitava Gupta - Pasadena CA
John D. Ingham - La Crescenta CA
Andre H. Yavrouian - La Crescenta CA

California Institute of Technology - Pasadena CA

C08L 5100
C08L 3308

525281

A polymer syrup for encapsulating solar cell assemblies. The syrup includes uncrosslinked poly(n-butyl)acrylate dissolved in n-butyl acrylate monomer. Preparation of the poly(n-butyl)acrylate and preparation of the polymer syrup is disclosed. Methods for applying the polymer syrup to solar cell assemblies as an encapsulating pottant are described. Also included is a method for solar cell construction utilizing the polymer syrup as a dual purpose adhesive and encapsulating material.

4100331, Jul 11, 1978

Feb 3, 1977

5/765138

James C. Administrator of the National Aeronautics and Space Fletcher
John D. Ingham - La Crescenta CA
Daniel D. Lawson - Arcadia CA

H01M 486

429 13

A gaseous fuel cell is described which includes a pair of electrodes formed by open-ended, ion-exchange hollow fibers, each having a layer of metal catalyst deposited on the inner surface thereof and large surface area current collectors such as braided metal mesh in contact with the metal catalyst layer. A fuel cell results when the electrodes are immersed in electrolyte and electrically connected. As hydrogen and oxygen flow through the bore of the fibers oxidation and reduction reactions develop an electrical potential. Since the hollow fiber configuration provides large electrode area per unit volume and intimate contact between fuel and oxidizer at the interface, and due to the low internal resistance of the electrolyte, high power densities can be obtained.

4209393, Jun 24, 1980

Jan 28, 1976

5/652979

John J. Kalvinskas - Pasadena CA
William A. Mueller - Glendale CA
John D. Ingham - La Crescenta CA

California Institute of Technology - Pasadena CA

C02B 114

210 40

In a raw sewage treatment process of the type where settling tanks are used for the purpose of permitting the suspended matter in the raw sewage to be settled as well as to permit adsorption of the dissolved contaminants in the water of the sewage. The sludge, which settles down to the bottom of the settling tank is extracted, pyrolyzed and activated to form activated carbon and ash which is mixed with the sewage prior to its introduction into the settling tank, for the purposes mentioned. Because the sludge does not provide all of the activated carbon and ash required for adequate treatment of the raw sewage, it is necessary to add carbon to the process. In accordance with this invention, instead of expensive commercial carbon, coal is used to provide the carbon supplement.

4420544, Dec 13, 1983

Oct 2, 1981

6/307848

Daniel D. Lawson - Arcadia CA
John D. Ingham - La Crescenta CA

California Institute of Technology - Pasadena CA

H01M 800

429 13

A methanol/air-oxygen fuel cell including an electrode formed by open-ended ion-exchange hollow fibers having a layer of catalyst deposited on the inner surface thereof and a first current collector in contact with the catalyst layer. A second current collector external of said fibers is provided which is immersed along with the hollow fiber electrode in an aqueous electrolyte body. Upon passage of air or oxygen through the hollow fiber electrode and introduction of methanol into the aqueous electrolyte, a steady current output is obtained. Two embodiments of the fuel cell are disclosed. In the first embodiment the second metal electrode is displaced away from the hollow fiber in the electrolyte body while in the second embodiment a spiral-wrap electrode is provided about the outer surface of the hollow fiber electrode.

4373039, Feb 8, 1983

Jun 11, 1980

6/158530

William A. Mueller - Glendale CA
John D. Ingham - La Crescenta CA
William W. Reilly - Altadena CA

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

C08K 517
C08L 2904
C08L 3102

523205

The impact resistance of flame retardant composites, especially thermoplastic molding compounds containing over 60% hydrated mineral filler such as Al(OH). sub. 3 or Mg(OH). sub. 2 is improved by coating the filler with 1 to 20% of an elastomer. The composite will fail by crazing or shearing rather than by brittle fracture. A well bonded elastomeric interphase results by utilizing acidic substituted resins such as ethyl-hexyl acrylate-acrylic acid copolymers which bond to and are cross-linked by the basic filler particles. Further improvement in impact resistance is provided by incorporating 1 to 10% of a resin fiber reinforcement such as polyvinyl alcohol fibers that decompose to yield at least 30% water when heated to decomposition temperature.