Other

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

Lubricating Specialties Company

USA As Represented by Secretary of the Navy

Ultra Systems Limited

Ultraystems Defense and Space, Inc.

Ultrasystems Defense and Space, Inc.

Technolube Division Lubricating Specialties Co.

Kazimiera J Paciorek

Reinhold H Kratzer

James H Nakahara

Thomas I Ito

David H Harris

Steven R Masuda

James C Fletcher

Wen-Huey Lin

Mark E Smythe

Jacquelyn Kaufman

Wilfried Krone-Schmidt

Joseph G Shih

Robert A Frosch

Carl E Snyder, Jr

Robert W Rosser

Patrick F Kimble

Robert E Pratt

William M Warner

Dennis W Karle

Bruce B Randolph

Mixtures of alkylaromatic secondary phosphate and tertiary phosphate esters prepared by reaction of phosphonyl chloride and primary phosphonyl chlorides with alkylaromatic phenols are disclosed as rust inhibiting additives for hydrocarbon based fluids.

Rust inhibiting phosphate ester formulations

Perfluoroalkylether-linked quinoxalines having repeating units of the formula: ##STR1## wherein R.sub.f is selected from the group consisting of --OCF.sub.2 CF.sub.2 --, --OCF.sub.2 CF.sub.2 CF.sub.2 --, --OCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 --, --OCF.sub.2 CF(CF.sub.3)-- and --OCF.sub.2 CF.sub.2 OCF.sub.2 CF(CF.sub.3)--; wherein n has a value of 2 to 4, and m has a value of 1 to 20; and wherein R is a single bond, --O--, --S--, --C.sub.6 H.sub.4 --O--C.sub.6 H.sub.4 --, or --SO.sub.2 --, are prepared by the steps of

Polymeric perfluoroalkylether-linked quinoxalines

Perfluoroalkyl and perfluoroalkylether substituted aromatic phosphates, phosphonates and related compositions prepared by reaction of pefluoroalkyl or pefluoroakylether substituted phenols with mono- and dihalophosphite and primary and secondary phosphonyl halides are disclosed. These materials are useful as antioxidant, anticorrosion, antirust, and lubricity enhancing agents for perfluoropolyalkylether fluids.

Perfluoroalkyl and perfluoroalkylether substituted aromatic phosphates,

Hydrolytically and thermooxidatively stable monophospha-s-triazines prepared by reaction of octafluoroisobutylene epoxide with an acid fluoride followed by transformation of the resultant product into an amide, then into a nitrile, reacting the nitrile with ammonia and reacting the imidoylamidine resulting from the previous steps with di-aryltrihalophosphorane to produce mono-phospha-s-triazines that are useful as antioxidant - anticorrosion agents for perfluoroalkylether fluids are disclosed.

Monophospha-S-triazines of improved hydrolytic and thermal oxidative

Polysilahydrocarbons, such as tetrasilanes, are prepared by reaction of alkenyl organometallic compounds with alkyltrihalosilanes, followed by further reaction of the alkyltrialkenylsilane intermediates with trihalosilane and the subsequent substitution of the halogen atoms in the second intermediate by alkyl groups.

Polysilahydrocarbon lubricants

A soluble, processible ceramic precursor, comprising A1N and BN in fixed proportion, which on pyrolysis is transformed into pure carbon free A1NBN ceramic, of the formula:

Precursor for A1NBN ceramic and method of use

A preceramic substituted borazine polymer of the formula: ##STR1## wherein R is methyl, ethyl, propyl, or butyl, and x is a positive integer. Also disclosed are methods for making the polymer, methods for converting the polymer into coatings, shaped articles, articles including fibers and filaments formed from the polymer, blends of the foregoing polymer and preceramic triamino-N-tris (trialkylsilyl) borazines, and methods for thermally decomposing the foregoing polymers to form shaped articles of boron nitride.

Boron nitride preceramic polymers

Trisilahydrocarbon synthetic lubricant base stocks are prepared by the reaction of dienes containing four to sixteen carbon atoms with dihalosilanes, followed by further reaction of the bis(alkenyl)dihalosilane intermediates with trihalosilanes or trialkylsilanes, followed by substitution of the halogen atoms in the second intermediates by organometallic compounds or by hydridometallic compounds plus olefins.

Trisilahydrocarbon lubricants

Silyl containing cyclic borazines are prepared by reacting chloroborazine with disilazanes.

Boron nitride polymeric precursors

B-triamino-N-tris(trialkylsilyl)borazines, their condensation products, and the transformation of these into preceramic polymers amenable to fiber drawing and ultimately boron nitride fiber formation.

This invention concerns itself with a novel class of dihalodiphospha-s-triazines as exemplified by the compound 1,3-bis[phenylchloro-phospha]-5-perfluoro-n-heptyl-2,4,6-triazines as well as their thio and azido substituted derivatives.

Halo-substituted diphospha-s-triazines and their derivatives

This invention concerns itself with a class of novel dihalo-substituted monophospha-s-triazines as exemplified by the compounds 1-dichlorophospha-3,5-bis(perfluoro-n-heptyl)-2,4,6-triazine and 1-dichlorophospha-3,5-bis[C.sub.3 F.sub.7 OCF(CF.sub.3)CF.sub.2 OCF(CF.sub.3)]-2,4,6-triazine, as well as their thio and azido derivatives.

Dihalo-monophospha-s-triazines and their derivatives

Fluorinated alkyl or alkylether 1,2,4-oxadiazole compounds are prepared by cyclizing the corresponding alkyl or alkylether imidoylamidoximes in vacuo or in an inert atmosphere at a temperature within the range of 40.degree. to 100.degree. C. for a period of 8 to 144 hours in the presence of an acid compound which can accept ammonia to form a salt. The imidoylamidoximes usable in this process may be either polymeric or nonpolymeric. The products, when polymeric, have excellent heat, chemical and solvent resistance.

Preparation of perfluorinated 1,2,4-oxadiazoles

A method for preparing unsymmetrical diphosphatetraazacyclooctatetraenes and the novel products produced thereby. The synthesis involves an interaction between an imido-tetraaryl-diphosphinic acid trihalide and a perfluorinated imidoylamidine in the presence of an acid acceptor.

Unsymmetrical diphosphatetraazacyclooctatetraenes

A method for synthesizing symmetrical diphosphatetraazacyclooctatetraenes and the products produced thereby. The synthesis involves effecting a reaction between a diaryltrihalophosphorane of a perfluoroalkyl amidine in the presence of an acid acceptor.

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Corona del Mar, CA, United States of America

Kazimiera J Paciorek