United States of America As Represented by the Secretary of the Air Force

Other

Cryovac, Inc.

Hybrid Plastics, Inc.

Rusty Lew Blanski

Robert H Grubbs

William Peyton Roberts

Joseph D Lichtenhan

Joseph J Schwab

Donald Albert Bansleben

Truc-Chi T Huynh-Tran

Robert Howard Grubbs

Shawn H Phillips

Paul Anthony Hughes

Galen Richard Hatfield

Patrick N Ruth

Xuan Fu

Benjamin Chu

Benjamin S Hsiao

Joseph M Mabry

Charles U Pittman, Jr

Sukhendu B Hait

Qibo Liu

Rene I Gonzalez

Joseph H Koo

Brent D Viers

Yan-Jyh Lee

Stephen L Rodgers

Backfunctionalized imidazolinium salts and methods of synthesizing the same and NHC carbene-metal complexes therefrom. For backfunctionalized imidazolinium salts of the formula:  Wherein Ris selected from the group consisting of an ester group, an amide group, and an aromatic group; Ris selected from the group consisting of hydrogen, an ester group, an amide group, and an aromatic group; Rand Rare each an aliphatic group; and X is an anion; the method comprises cyclization of a halogenated acrylate with H&#xfc;nig's base in a solvent.

Backfunctionalized imidazolinium salts and NHC carbene-metal complexes

Backfunctionalized imidazolinium salts and methods of synthesizing the same and NHC carbene-metal complexes therefrom. For backfunctionalized imidazolinium salts of the formula: 

Backfunctionalized imidazolinium salts and methods of synthesizing the same and NHC carbene-metal complexes therefrom. For backfunctionalized imidazolinium salts of the formula: Wherein Ris selected from the group consisting of an ester group, an amide group, and an aromatic group; Ris selected from the group consisting of hydrogen, an ester group, an amide group, and an aromatic group; Rand Rare each an aliphatic group; andX is an anion; the method comprises cyclization of a halogenated acrylate with H&#xfc;nig's base in a solvent.

Backfunctionalized imidazolinium salts and methods of synthesizing the same and NHC carbene-metal complexes therefrom. For backfunctionalized imidazolinium salts of the formula: Wherein Ris selected from the group consisting of an ester group, an amide group, and an aromatic group; Ris selected from the group consisting of hydrogen, an ester group, an amide group, and an aromatic group; Rand Rare each an aliphatic group; and X is an anion; the method comprises cyclization of a halogenated acrylate with H&#xfc;nig's base in a solvent.

Backfunctionalized imidazolinium salts and methods of synthesizing the same and NHC carbene-metal complexes therefrom. For backfunctionalized imidazolinium salts of the formula: Wherein Ris selected from the group consisting of an ester group, an amide group, and an aromatic group; Ris selected from the group consisting of hydrogen, an ester group, an amide group, and an aromatic group; Rand Rare each selected from the group consisting of a C-Calkyl group, C-Cpartially fluorinated alkyl group, an aryl group, an aryl group with para CFfunctionality, an aryl group having C-Cpartially fluorinated alkyl groups or partially fluorinated alkoxy groups, and a C-Cpartially fluorinated aliphatic group, and a C-Caryl group; and X is an anion. The method comprises cyclization of a halogenated acrylate with a formamidine with H&#xfc;nig's base in a solvent.

N-heterocyclic ('NHC') carbenes and NHC carbene-metal complexes. The NHC carbene having a formula: wherein Ris an aromatic or aliphatic group, and Ris an aromatic or aliphatic group, Ris a fluorinated alkyl chain, Ris a fluorinated alkyl chain or a proton. NHC carbene-metal complexes having the formula: wherein M is a metal, and each of L, L, and Lligands is a backfluorinated NHC carbene.

Backfluorinated NHC carbenes and complexes

Provided is a solid rocket motor (SRM) insulation, wherein carbon nano fibers (CNF) are blended into a polyurethane matrix so as to disperse the CNF in the polymer. The so blended material is then extruded, injection molded or sprayed on or into the desired shape. Such SRM insulation has reduced ablation over prior art insulations, resulting in reduction in weight of the insulation needed in such rockets, permitting increase of payload therein.

Rocket motor insulation

A method of using olefin containing nanostructured chemicals and silanol containing nanostructured chemicals as high temperature resins is described. Vinyl containing nanostructured chemicals are particularity effective in thermosets as they control the motions of polymer chains, and segments, at the molecular level. Silanol containing nanostructured chemicals are particularity effective in thermosets containing polar groups as the silanol can enhance the reactivity of these groups. Because of their tailorable compatibility with fluorinated polymers, nanostructured chemicals can be readily and selectively incorporated into polymers by direct blending and polymerization processes. The incorporation of a nanostructured chemical into a polymer favorably impacts a multitude of polymer physical properties. Properties most favorably improved are heat distortion and flammability characteristics, permeability, optical properties, texture, feel and durability. Other properties improved include time dependent mechanical and thermal properties such as creep, compression set, shrinkage, modulus, and hardness. In addition to mechanical properties, other physical properties are favorably improved, including lower thermal conductivity, and gas oxygen permeability. These improved properties may be useful in a number of applications, including composite materials, foams, cosmetics, and durable coatings.

High use temperature nanocomposite resins

Nanoscale chemicals based on polyhedral oligomeric silsesquioxanes (POSS) and polyhedral oligomeric silicates (POS) are taught as lubricants, mold release agents, and as additives to control the viscosity, lubrication, wear, and thermal properties of conventional lubricous materials. The precisely defined nanoscopic dimensions of POSS materials enable viscosity, miscibility, and thermal properties to be (increased) or reduced (decreased) as desired. A key feature to the successful tailoring of properties is the inherent thermal and chemical stability of the POSS/POS nanostructure and the ability to control its topology and chemical potential to match that of surfaces and other materials.

Lubrication via nanoscopic polyhedral oligomeric silsesquioxanes

A method of using nanostructured chemicals as alloying agents for the reinforcement of flouropolymer microstructures, including polymer coils, domains, chains, and segments, at the molecular level. Because of their tailorable compatibility with fluorinated polymers, nanostructured chemicals can be readily and selectively incorporated into polymers by direct blending processes. Properties most favorably improved are time dependent mechanical and thermal properties such as heat distortion, creep, compression set, shrinkage, modulus, hardness and abrasion resistance. In addition to mechanical properties, other physical properties are favorably improved, including lower thermal conductivity, fire resistance, and improved oxygen permeability. These improved properties may be useful in a number of applications, including space-survivable materials and creep resistant seals and gaskets. Improved surface properties may be useful for applications such as anti-icing or non-wetting surfaces or as low friction surfaces.

Nanostructured chemicals as alloying agents in fluorinated polymers

Compositions include blends of ethylene-based polymers and polyhedral oligomeric silsesquioxanes (POSS) or polyhedral oligomeric silicates (POS), having hydrocarbon substitution and processes for producing such compositions.

Blends of organic silicon compounds with ethylene-based polymers

A new and novel linear, regio-regular vicinal functionalized polymer methods of forming the same are described. The polymer has a linear hydrocarbon polymer backbone with vicinal functional groups having oxygen and/or nitrogen atom containing groups, such as hydroxy, carboxylic acid or ester, carbonyl acetate, amide, nitrile and the like, pendent from the polymer backbone chain in a regio-regular manner.

Growing community of inventors

Palmdale, CA, United States of America

Rusty Lew Blanski