Boron Containing Patents (Class 549/213)
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Patent number: 5702952Abstract: The invention provides novel labelled boronic acid conjugates of formula ##STR1## (wherein V is a reporter moiety; W.sup.2 is a bond or an organic linker moiety;W.sup.1 is a *SO.sub.2 NR.sup.2, *CONR.sup.2 or *CH.sub.2 N.sup..sym. R.sup.2.sub.2 group bound at the *-marked atom to the phenyl ring;R.sup.1 is hydrogen or an electron withdrawing substituent group; andeach R.sup.2 independently is hydrogen or an optionally hydroxylated and optionally C.sub.1-6 -alkoxylated C.sub.1-6 -alkyl group) and salts thereof, e.g. for use in assays for cis-diols such as glycated blood proteins, having enhanced water-solubility and storage stability.Type: GrantFiled: February 21, 1997Date of Patent: December 30, 1997Assignee: Axis Biochemicals ASAInventors: Erling Sundrehagen, Frank Frantzen
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Patent number: 5686608Abstract: A process for preparing polycyclic aromatic compounds by cross-coupling aromatic boron compounds with aromatic halogen compounds or perfluoroalkylsulfonates in the presence of metallic palladium as catalyst comprises adding to the reactiona) at least one water-soluble complexing ligand andb) sufficient water for the reaction mixture to form an aqueous phase.The reaction of the invention proceeds chemoselectively so that even electrophilic groups such as esters or nitriles do not have an adverse effect on the course of the reaction.The use according to the invention of a water-soluble complexing ligand in an aqueous phase enables polycyclic aromatic compounds to be prepared in very good yields and at the same time very high purity, in particular without contamination by the complexing ligands.Type: GrantFiled: April 24, 1995Date of Patent: November 11, 1997Assignee: Hoechst AktiengesellschaftInventors: Steffen Haber, Javier Manero
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Patent number: 5679818Abstract: The present invention is a compound having the formula:R.sup.1 --Ac.sup.1 --Ar.sup.1 --M--Ar.sup.2 --Ac.sup.2 --R.sup.2where R.sup.1 and R.sup.2 are independently selected from the group consing of hydrogen, unsubstituted alkyl groups, substituted alkyl groups, unsubstituted aryl groups, and substituted aryl groups, where Ac.sup.1 and Ac.sup.2 are independently selected alkynyl groups having at least 1 carbon-carbon triple bond, where Ar.sup.1 and Ar.sup.2 are independently selected substituted or unsubstituted aromatic diradicals, and where M has the structure ##STR1## where m is a positive integer, wherein x, p, y, r, n, and z are independently selected integers, where z.noteq.0 when n.noteq.0, and where R.sup.3 through R.sup.14 are independently selected from the group consisting of hydrogen, unsubstituted alkyl groups, substituted alkyl groups, unsubstituted aryl groups, and substituted aryl groups.Type: GrantFiled: July 26, 1996Date of Patent: October 21, 1997Assignee: The United States of America as represented by the Secretary of the NavyInventors: Daniel Bucca, Teddy M. Keller
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Patent number: 5631364Abstract: The invention provides novel labelled boronic acid conjugates of formula ##STR1## (wherein V is a reporter moiety; W.sup.2 is a bond or an organic linker moiety;W.sup.1 is a *SO.sub.2 NR.sup.2, *CON.sup.2 or *CH.sub.2 N.sym.R.sup.2 .sub.2 group bound at the *-marked atom to the phenyl ring;R.sup.1 is hydrogen or an electron withdrawing substituent group; andeach R.sup.2 independently is hydrogen or an optionally hydroxylated and optionally C.sub.1-6 -alkoxylated C.sub.1-6 -alkyl group) and salts thereof, e.g. for use in assays for cis-diols such as glycated blood proteins, having enhanced water-solubility and storage stability.Type: GrantFiled: March 31, 1994Date of Patent: May 20, 1997Assignee: AXIS Biochemicals ASAInventors: Erling Sundrehagen, Frank Frantzen
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Patent number: 5614649Abstract: Disclosed herein are inhibitors of the multicatalytic protease enzyme which are represented by the general formula: ##STR1## Constituent members and preferred constituent members are disclosed herein. Methodologies for making and using the disclosed compounds are also set forth herein.Type: GrantFiled: November 3, 1995Date of Patent: March 25, 1997Assignee: Cephalon, Inc.Inventors: Mohamed Iqbal, James L. Diebold, Robert Siman, Sankar Chatterjee, James C. Kauer
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Patent number: 5563127Abstract: Novel boronic acid and ester and carboxyl-modified amino acid compounds of the Formula I, which are inhibitors of trypsin-like enzymes, are disclosed :R.sup.1 --Z--CHR.sup.2 --A,where R.sup.1, Z, R.sup.2 and A are defined within.Type: GrantFiled: December 27, 1994Date of Patent: October 8, 1996Assignee: The DuPont Merck Pharmaceutical CompanyInventors: Eugene C. Amparo, William H. Miller, Gregory J. Pacofsky, John Wityak, Patricia C. Weber, John J. V. Duncia, Joseph B. Santella, III
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Patent number: 5514816Abstract: The reaction of 2,2-difluorobenzo-1,3-dioxole with (a) an alkali metal or an alkali metal compound and then (b) a compound R.sup.1 -Z.sup.1 in which Z.sup.1 is a leaving group, or with an aldehyde produces compounds of formula I ##STR1## wherein R.sup.1 is --OH, --SH, --CHO, --CN, --COOH, --B(OH).sub.2, --COX, with X being C1 or Br, or is --COOR.sup.2, --SiR.sup.2.sub.3 or --B(OR.sup.2).sub.2, with R.sup.2 being a C.sub.1 -C.sub.12 alcohol moiety without the hydroxy group, wherein R.sup.1 is further --C.sub.n H.sub.2n COOR.sup.2, with n being an integer from 1 to 4, or linear or branched C.sub.1 -C.sub.12 hydroxyalkyl which is unsubstituted or is substituted by --F, --CN, C.sub.1 -C.sub.6 alkoxy, phenyl, fluorophenyl, C.sub.1 -C.sub.4 alkoxy-phenyl, C.sub.1 -C.sub.4 alkylthio-phenyl, C.sub.1 -C.sub.4 alkylphenyl, C.sub.1 -C.sub.4 fluoroalkyl-phenyl, nitrophenyl or by cyanophenyl, or wherein R.sup.1 is a benzyl alcohol which is unsubstituted or is substituted by F, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.Type: GrantFiled: May 12, 1995Date of Patent: May 7, 1996Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Hans-Ruedi Kanel, Bruno Schaub
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Patent number: 5493046Abstract: The novel process of the invention for the preparation of a compound of the formula ##STR1##Type: GrantFiled: October 27, 1994Date of Patent: February 20, 1996Assignee: Roussel-UclafInventors: Neerja Bhatnagar, Jean Buendia, Christine Griffoul
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Patent number: 5493032Abstract: The reaction of 2,2-difluorobenzo-1,3-dioxole with (a) an alkali metal or an alkali metal compound and then (b) a compound R.sup.1 -Z.sup.1 in which Z.sup.Type: GrantFiled: March 6, 1995Date of Patent: February 20, 1996Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Hans-Ruedi Kanel, Bruno Schaub
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Patent number: 5442100Abstract: A compound having the formula: ##STR1## where R.sub.1, R.sub.2, and R.sub.3 are independently hydrogen or C.sub.1-C.sub.4 alkyl; n is 2-4; X is aryl, substituted aryl or C.sub.1-C.sub.6 alkyl; Y is selected from the group consisting of hydrogen, amino acid, dipeptide or tripeptide linked through the C-terminal carboxylic acid, and amine protecting group is presented.Type: GrantFiled: August 14, 1992Date of Patent: August 15, 1995Assignee: The Procter & Gamble CompanyInventors: David W. Bjorkquist, Rajan K. Panandiker
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Patent number: 5420301Abstract: The reaction of 2,2-difluorobenzo-1,3-dioxole with (a) an alkali metal or an alkali metal compound and then (b) a compound R.sup.1 -Z.sup.1 in which Z.sup.1 is a leaving group, or with an aldehyde produces compounds of formula I ##STR1## wherein R.sup.1 is --OH, --SH, --CHO, --CN, --COOH, --B(OH).sub.2, --COX, with X being Cl or Br, or is --COOR.sup.2, --SiR.sub.3.sup.2 or --B(OR.sup.2).sub.2, with R.sup.2 being a C.sub.1 -C.sub.12 alcohol moiety without the hydroxy group, wherein R.sup.1 is further --C.sub.n H.sub.2n COOR.sup.2, with n being an integer from 1 to 4, or linear or branched C.sub.1 -C.sub.12 hydroxyalkyl which is unsubstituted or is substituted by --F, --CN, C.sub.1 -C.sub.6 alkoxy, phenyl, fluorophenyl, C.sub.1 -C.sub.4 alkoxy-phenyl, C.sub.1 -C.sub.4 alkylthio-phenyl, C.sub.1 -C.sub.4 alkyl-phenyl, C.sub.1 -C.sub.4 fluoroalkyl-phenyl, nitrophenyl or by cyanophenyl, or wherein R.sup.1 is a benzyl alcohol which is unsubstituted or is substituted by F, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.Type: GrantFiled: November 5, 1993Date of Patent: May 30, 1995Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Hans-Ruedi Kanel, Bruno Schaub
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Dispersant adducts comprising alcohol adducts of dicarboxylic acid monoepoxy thiol reaction products
Patent number: 5340487Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted with carboxylic acid producing moieties (preferably acid or anhydride moieties), and (B) a monoepoxy thiol.Type: GrantFiled: August 19, 1993Date of Patent: August 23, 1994Assignee: Exxon Chemical Patents Inc.Inventors: Jacob Emert, Robert D. Lundberg -
Patent number: 5229526Abstract: A metal alkoxide having the following formula: ##STR1## wherein T.sub.1 is hydrogen or a hydroxy protecting group, Z is --OT.sub.2, or --OCOCH.sub.3, T.sub.2 is hydrogen or a hydroxy protecting group, and M is selected from the group comprising Group IA, IIA and transition metals are useful in the preparation of biologically active derivatives of baccatin III and 10-deacetyl baccatin III.Type: GrantFiled: April 3, 1992Date of Patent: July 20, 1993Assignee: Florida State UniversityInventor: Robert A. Holton
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Patent number: 5169841Abstract: The invention relates to compounds of the formula 1 ##STR1## in which A.sup.1 denotes a radical of the formulae ##STR2## A.sup.2 is absent or represents a radical of the formula ##STR3## R.sup.2, R.sup.3 and R.sup.4 are as defined in the specification, and X and Y, independently of one another, represent --O-- or --NR.sup.13 --, and to the salts thereof. Also described is a process for the preparation of the compounds of the formula 1, corresponding pharmaceutical products, and the use thereof as medicines, and intermediates for the preparation of these compounds.Type: GrantFiled: November 3, 1988Date of Patent: December 8, 1992Assignee: Hoechst AktiengesellschaftInventors: Heinz-Werner Kleeman, Hansjorg Urbach, Dieter Ruppert, Bernward Scholkens
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Patent number: 5151520Abstract: A cationic dye-borate anion compound represented by the formula: ##STR1## where D+ is a cationic dye moiety selected from the group consisting of cationic cyanine, carbocyanine, hemicyanine, rhodamine, and azamethine dyes; R.sup.1 is alkyl; and R.sup.2, R.sup.3, and R.sup.4 are aryl. Such cationic dye-borate anion compounds are useful photoinitiators of free radical addition reactions.Type: GrantFiled: January 30, 1990Date of Patent: September 29, 1992Assignee: The Mead CorporationInventors: Peter Gottschalk, Douglas C. Neckers, Gary B. Schuster
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Patent number: 5061695Abstract: An antitumor substance BE-12406 or a pharmaceutically acceptable salt thereof, which is represented by the general formula ##STR1## and a method of producing the novel substance.Type: GrantFiled: January 30, 1990Date of Patent: October 29, 1991Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Hiroyuki Suda, Katuhisa Kojiri, Akira Okura, Koutaro Funaishi, Kenji Kawamura, Masanori Okanishi
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Patent number: 5039795Abstract: An improved process for preparation of compounds of the formula ##STR1## as disclosed. These compounds are useful as intermediates in the preparation of boronic acid adducts of technetium 99m dioxime complexes of the formula.sup.99m Tc X(Y).sub.3 Zwhich are useful as imaging agents.Type: GrantFiled: June 21, 1989Date of Patent: August 13, 1991Assignee: E. R. Squibb & Sons, Inc.Inventor: Richard H. Mueller
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Patent number: 5037811Abstract: Compounds of the formula ##STR1## in which R.sub.1 is H or alkyl of 1 to 20 carbons, CO--R.sub.1.sup.* CO--O--R.sub.1.sup.* CO--NH--R.sub.1.sup.* or PO(OR.sub.1.sup.*).sub.2 or PO(OR.sub.1.sup.*)R.sub.1.sup.* where R.sub.1.sup.* independently is H, alkyl of 1 to 20 carbons, phenyl, or substituted phenyl; X is O, S, SO--, SO.sub.2, NH--, or NR.sub.2 where R.sub.2 is phenyl, substituted phenyl or alkyl of 1 to 20 carbons, and Y is alkyl having at least 6 carbon atoms, arylalkyl, aryl, substituted aryl, substituted arylalkyl, alkenyl containing one or more olephinic bonds and at least 6 carbon atoms, CO--R.sub.3, CO--OR.sub.3, CONHR.sub.3, SO.sub.2 R.sub.3, SO.sub.2 NHR.sub.3 where R.sub.3 is aryl, substituted aryl, substituted arylalkyl, alkyl, alkenyl containing one or more olephinic bonds, further Y is (CH.sub.2).sub.n --O--R.sub.4, or (CH.sub.2).sub.n --O--(CH.sub.2).sub.m --O--R.sub.4, where n, and m, are integers and are independently 1 to 25 and R.sub.Type: GrantFiled: April 17, 1990Date of Patent: August 6, 1991Assignee: Allergan, Inc.Inventor: Gary C. M. Lee
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Patent number: 4963655Abstract: A method of inhibiting protease activity, growth, and colony formation in mammalian tumor cells by boronic acid analogs of amino acids, dipeptides and tripeptides. A method of coupling a boronic acid analog of an amino acid to other N-protected amino acids or N-protected dipeptides and compositions formed from the coupled products.Type: GrantFiled: May 27, 1988Date of Patent: October 16, 1990Assignee: Mayo Foundation for Medical Education and ResearchInventors: David H. Kinder, Matthew M. Ames
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Patent number: 4963568Abstract: Novel compounds which are selective dopamine agonists are useful for treating disorders characterized by abnormal dopamine levels, such as Parkinson's Disease, as well as cardiovascular disorders.Type: GrantFiled: May 31, 1989Date of Patent: October 16, 1990Assignee: Abbott LaboratoriesInventors: Robert W. Schoenleber, John W. Kebabian, Yvonne C. Martin, Michael P. DeNinno, Richard J. Perner, David M. Stout, Chi-Nung W. Hsiao, Stanley DiDomenico, Jr., John F. DeBernardis, Fatima Z. Basha, Michael D. Meyer, Biswanath De
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Patent number: 4913830Abstract: Poly (C.sub.5 -C.sub.9 lactone) modified Mannich base adducts are made by reacting a C.sub.5 -C.sub.9 lactone, an amine, an aldehyde, and a hydrocarbyl substituted, hydroxy aromatic compound, e.g. a polyisobutenyl phenol which, in turn, preferably is made by reacting a polymer of a C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a molecular weight of about 700 to 10,000 with a hydroxy aromatic compound. The resulting adducts are useful per se as oil soluble dispersant additives. They are also useful in fuel and lubricating oil compositions, as well as in concentrates and additive packages.Type: GrantFiled: January 9, 1989Date of Patent: April 3, 1990Assignee: Exxon Chemical Patents Inc.Inventors: Robert D. Lundberg, Antonio Gutierrez
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Patent number: 4910321Abstract: This invention provides a novel catalyst composed of a complex of an organic acid or its ester and a Lewis acid, preferably boron trichloride that can add olefin monomers to increase the molecular weight of the complex from as low as 200 to in excess of a million, with the complex being active viz., living, until the complex dies, viz., is decomposed or destroyed so that polymers in the liquid or easily liquefiable range of 300 to about 20,000 can be made or those more difficult to be liquefied or unliquefiable, viz., those of over 10,000 up to 100,000 or in some cases 500,000 and then those in the range of the elastomers, or moldable or extrudable plastics range having very high molecular weights, generally in excess of 100,000 up to in excess of 500,000 and having useful end groups such as the halogens and specifically chloride, allyl, acryl or methacryl, acetate or formate to name some of the more useful ones.Type: GrantFiled: February 16, 1988Date of Patent: March 20, 1990Assignee: University of AkronInventors: Joseph P. Kennedy, Rudolf Faust
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Patent number: 4870177Abstract: Improved processes for liberating boronic, RB(OR').sub.2, and borinic, RR'BOR', esters from their "ate" complexes, free of alcohol are provided. Pyrolysis of lithium organylborates LiRB(OR').sub.3 and LiRR'BOR', wherein R is an organyl group and R' is straight or branched-chain lower alkyl, directly yields the relatively volatile boronic and borinic esters in high purity, leaving behind a residue of lithium alkoxide. Treatment of the lithium organylborates with an appropriate acid halide cleanly liberates either volatile or non-volatile boronic or borinic esters, readily separated from the lower alkyl ester produced as a by-product. The novel compound lithium dimethylborohydride is also provided.Type: GrantFiled: December 17, 1987Date of Patent: September 26, 1989Assignee: Aldrich-Boranes, Inc.Inventor: Herbert C. Brown
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Patent number: 4839274Abstract: Polymethine dyes and ultraviolet absorbers are disclosed containing a basic electron donating terminal nucleus and an acidic electron accepting terminal nucleus comprised of a triarylborylisocyano group. The dyes are useful in imaging materials.Type: GrantFiled: June 30, 1987Date of Patent: June 13, 1989Assignee: Eastman Kodak CompanyInventor: Margaret E. Logan
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Patent number: 4839260Abstract: Polymethine dyes and ultraviolet absorbers are disclosed containing a basic electron donating terminal nucleus and an acidic electron accepting terminal nucleus satisfying the formula: ##STR1## where Ar is independently in each occurrence an aromatic group andD is an oxy or amino group.These polymethines are useful in imaging materials.Type: GrantFiled: June 30, 1987Date of Patent: June 13, 1989Assignee: Eastman Kodak CompanyInventor: Margaret E. Logan
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Patent number: 4833263Abstract: An electron-accepting compound represented by the formula (I): ##STR1## wherein R represents a hydrogen atom or --B(Mes).sub.2 and Mes represents a mesityl group.A method for preparing an electron-accepting compound represented by the above-described formula (I), which comprises condensing a benzophenone derivative represented by the following formula (II) with malononitride, ##STR2## wherein R and Mes have the same meanings as defined for the formula (I).Type: GrantFiled: January 13, 1988Date of Patent: May 23, 1989Assignee: Fuji Xerox Co., Ltd.Inventors: Yutaka Akasaki, Katsuhiro Sato, Hiroyuki Tanaka, Katsumi Nukada, Hidemi Sudo
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Patent number: 4724099Abstract: A boron-containing heterocyclic compound prepared by reacting a primary amine or ammonia with an alkylene oxide or epoxide and then reacting concurrently or subsequently this reaction intermediate with a boric acid. This boron-containing heterocyclic compound may further be reacted with a metal, metaloid or other metal compound and even further contain sulfur, such as a sulfide group.The boron-containing heterocyclic compound provides extreme pressure anti-wear properties when provided in a lubricating composition. The lubricating composition may also comprise anti-oxidants, copper corrosion inhibitors, and lead corrosion inhibitors. The anti-wear properties of a lubricating composition can be enhanced using the borates of the present invention in conjunction with a copper compound.The boron-containing heterocyclic compound may be used in automatic transmission fluids alone, further reacted with an ester of a polyhydric alcohol or mixed with said ester.Automatic transmission fluid compositions are provided.Type: GrantFiled: July 11, 1986Date of Patent: February 9, 1988Assignee: Union Oil Company of CaliforniaInventors: Richard A. Holstedt, Michael C. Croudace
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Patent number: 4713187Abstract: Disclosed herein are additives which are useful as dispersants and detergents in lubricating oils and fuels. In particular, this invention is directed toward polyamino alkenyl or alkyl succinimides wherein one or more of the amino nitrogens of the succinimide is substituted with ##STR1## wherein R.sub.4 is hydrocarbyl of from 1 to 30 carbon atoms; R.sub.5 is hydrocarbyl of from 2 to 30 carbon atoms or --R.sub.6 --(OR.sub.6).sub.p -- wherein R.sub.6 is alkylene of 2 to 5 carbon atoms and p is an integer from 1 to 100; and m is an integer of from 0 to 1.Type: GrantFiled: March 2, 1987Date of Patent: December 15, 1987Assignee: Chevron Research CompanyInventors: Thomas F. Buckley, III, Robert H. Wollenberg
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Patent number: 4708811Abstract: An electrolyte for electrolytic capacitor containing within an aprotic solvent a tetrafluoroboric acid salt of a pyrylium or thiopyrylium compound as solute.An electrolyte for electrolytic capacitor according to the invention may conveniently be prepared by dissolving a tetrafluoroboric acid salt of a pyrylium or thiopyrylium compound to an aprotic solvent until a desired conductivity is obtained, for example, as an approximately 10% by weight solution.Type: GrantFiled: February 27, 1987Date of Patent: November 24, 1987Assignee: Nippon Chemi-Con CorporationInventors: Fumihiko Shinozaki, Yutaka Yokoyama
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Patent number: 4702851Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are additives prepared by (a) first reacting a polyamine with a cyclic carbonate; (b) reaction of this intermediate with an alkenyl or alkyl succinic anhydride; and (c) reaction of the product of (b) with a boron compound.Type: GrantFiled: October 8, 1986Date of Patent: October 27, 1987Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4658051Abstract: The present invention relates to novel organocyanohydroborate compounds which may be employed as reducing agents. For example, organocyanohydroborates having the following general formula are contemplated:M.sup.+ BH.sub.3 CR.sub.1 R.sub.2 CN.sup.-In this formula, R.sub.1 and R.sub.2 may be, for example, H, CH.sub.3, or C.sub.6 H.sub.5, or may be represented jointly, for example by C.sub.5 H.sub.10, while M.sup.+ is a cation wh ich is capable of forming a slat. The organocyanohydroborate compounds of the present invention include a --CR.sub.1 R.sub.2 -- moiety between the BH.sub.3 moiety and CN moiety to provide a new class of hydroborate reducing agents.Type: GrantFiled: April 9, 1985Date of Patent: April 14, 1987Assignee: Utah State University FoundationInventors: Karen W. Morse, John L. Peters
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Patent number: 4652635Abstract: A method for converting ether groups such as alkyl or aryl ether groups including hydroquinone ether groups to hydroxyl groups and ester groups such as alkyl or aryl ester groups to carboxylic acid groups which comprises reacting a compound including at least one ether and/or ester group with a 2-halo-1,3,2-benzodioxaborole to form an intermediate and hydrolyzing the intermediate such as by quenching it into water to form the desired final product.Type: GrantFiled: June 15, 1984Date of Patent: March 24, 1987Assignee: Polaroid CorporationInventor: Patrick F. King
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Patent number: 4617406Abstract: Tocopherol homologues found in a tocopherol-containing feed material can be purified by forming a borate tocopherol ester and then distilling the material containing the esterified tocopherol to remove the materials boiling at temperatures lower than the esterified tocopherol. The borate tocopherol esters remaining after distillation are then reacted with a member selected from the group consisting of: Water, methanol, and ethanol to form tocopherol homologues from the borate tocopherol ester, and the boron by product from this reaction is removed. The tocopherol is then recovered by collecting it, distilling it or by any other convenient collection method.Type: GrantFiled: February 11, 1985Date of Patent: October 14, 1986Assignee: Henkel CorporationInventor: Stephen M. Willging
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Patent number: 4568756Abstract: Thio-bis-(hydrocarbyl substituted diacid materials), such as thio-bis-(polyalkyl lactone acid) and/or their precursors, the adducts of sulfur chloride and unsaturated diacid materials, e.g., 4,8-bis-polyalkyl-4,8-dichloro-5-thiaundecane-1,2,10,11-tetracarboxylic acid bis-anhydride and their dehydrochlorinated analogs, when esterified with an alcohol, preferably a polyol, such as pentaerythritol, polypentaerythritol or a polyalkylene glycol with or without acid catalysts and/or metal template reagents yield thio-bis-(alkyl lactone acid esters) and thio-bis-(hydrocarbyl diacid esters) which can be characterized in part, as macrocyclic and/or macrocyclic-like structures, are useful as stable additives in lubricating compositions, e.g. as varnish inhibiting dispersants for lubricating oils and fuels.Type: GrantFiled: August 31, 1983Date of Patent: February 4, 1986Assignee: Exxon Research & Engineering Co.Inventors: Stanley J. Brois, Antonio Gutierrez
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Patent number: 4522734Abstract: Borate esters of hydrolyzed hydrocarbyl alkoxides are effective friction modifiers which also provide effective multifunctional properties for lubricants when incorporated therein.Type: GrantFiled: October 25, 1982Date of Patent: June 11, 1985Assignee: Mobil Oil CorporationInventors: Andrew G. Horodysky, Henry Ashjian, Henry A. Gawel
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Patent number: 4476313Abstract: A method is disclosed for preparing pyrylium and thiapyrylium salts having the formula represented below (where X is O,S or Se): ##STR1## and where R.sup.1 and R.sup.2 represents a branched or unbranched alkyl radical having up to about 15 carbon atoms, an aromatic group having as substituents alkyl radicals with 1 to about 15 carbon atoms, alkoxy radicals having 1 to about 4 carbon atoms, substituted amino radicals have 1 to 2 carbon radicals containing 1 to about 4 carbon atoms, an heterocyclic group having as substitute alkyl radicals with 1 to about 15 carbon atoms, alkoxy radicals having 1 to about 4 carbon atoms and amino radicals having 1 or 2 carbon radicals containing 1 to about 4 carbons, thiophene radicals and furan radical containing a variety of substituents; R.sup.3 represents a thioalkyl radical having 1 to about 4 carbon atoms thiobenzyl, thioaryl and thiocycloalkyl, as well as thiohetaryl radicals such as thiohydridyl and related 5-and-membered systems; and Z.sup.- is an anionic function.Type: GrantFiled: May 13, 1983Date of Patent: October 9, 1984Assignee: Rensselaer Polytechnic InstituteInventor: Kevin T. Potts
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Patent number: 4410438Abstract: Lubricant and liquid fuel compositions containing a product made by reacting a boronating agent with a hydrocarbyl epoxide are provided. The invention also provides the product per se.Type: GrantFiled: December 11, 1981Date of Patent: October 18, 1983Assignee: Mobil Oil CorporationInventor: Andrew G. Horodysky
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Patent number: 4376712Abstract: Borated sorbitan esters provide effective friction reducing properties for lubricating fluids when incorporated therein.Type: GrantFiled: October 15, 1981Date of Patent: March 15, 1983Assignee: Mobil Oil CorporationInventors: Andrew G. Horodysky, Joan M. Kaminski
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Patent number: 4341894Abstract: Sensitizers for photoconductive compositions and elements are disclosed. The sensitizers are 2,4,6 tri substituted pyrylium dye salts wherein at least one of said substituents is a 5 or 6 membered heterocyclic ring having at least one atom selected from the group consisting of N, O and S.Type: GrantFiled: April 26, 1979Date of Patent: July 27, 1982Assignee: Eastman Kodak CompanyInventors: Michael T. Regan, George A. Reynolds, Donald P. Specht, James A. VanAllan
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Patent number: RE32246Abstract: Lubricant and liquid fuel compositions containing a product made by reacting a boronating agent with a hydrocarbyl epoxide are provided. The invention also provides the product per se.Type: GrantFiled: October 29, 1985Date of Patent: September 9, 1986Assignee: Mobil Oil CorporationInventor: Andrew G. Horodysky