Polyoxy Alcohol Moiety Patents (Class 560/198)
  • Patent number: 5919972
    Abstract: There is a provided a stable low viscosity graft polymer dispersion comprising from 25 to 60 weight percent based on the total weight of the polymer dispersion of at least three ethylenically unsaturated monomers polymerized in the presence of a reaction moderator and a free radical initiator in a polyol mixture initially containing less than 0.1 moles of induced unsaturation per mole of said polyol mixture. One of the monomers in the mixture of ethylenically unsaturated monomers is a hydroxylfunctional or aminofunctional C.sub.2 -C.sub.6 alkyl methacrylate.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: July 6, 1999
    Assignee: BASF Corporation
    Inventors: Duane A. Heyman, James A. Gallagher
  • Patent number: 5907054
    Abstract: The present invention provides a process for the production of an ester of polyoxyalkylene glycol on an industrially favorable basis which comprises the ring opening polymerization of a cyclic ether in the presence of a carboxylic anhydride and a solid acid polymerization catalyst to obtain a polymer esterified at some or all of the ends thereof, wherein the water content in the reaction system is maintained at not more than 30 ppm by weight during the polymerization reaction.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: May 25, 1999
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Tohru Setoyama, Yoshio Kabata, Mitsuharu Kobayashi
  • Patent number: 5877341
    Abstract: Methods and devices for controlling the reaction rate of a hydrocarbon to an acid or other intermediate oxidation product by pressure drop rate adjustments. The pressure drop rate measurements arc conducted at predetermined time intervals, after stopping the feeding and exiting of gases. The pressure drop at a predetermined time interval is measured or the time it takes for the pressure to drop by a certain degree. Adjustments are then made in one or more temperature, feeding rates of hydrocarbon, solvent, catalyst, promoter, and the like until the pressure drop rate and the reaction rate fall within desirable predetermined limits.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: March 2, 1999
    Assignee: Twenty-First Century Research Corporation
    Inventors: Eustathios Vassiliou, Mark W. Dassel, David C. DeCoster, Ader M. Rostami, Sharon M. Aldrich
  • Patent number: 5780417
    Abstract: A light duty liquid detergent with desirable cleansing properties and mildness to the human skin comprising: two sulfonate surfactants, an alkali metal or ammonium salt of a C.sub.8-18 ethoxylated alkyl ether sulfate anionic surfactant, an alkyl polyglucoside surfactant, an ethoxylated/propoxylated nonionic surfactant and water.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: July 14, 1998
    Assignee: Colgate-Palmolive Company
    Inventor: Philip A. Gorlin
  • Patent number: 5770760
    Abstract: Novel aqueous thickener or thixotropic polymers are prepared by the copolymerization of (A) about 15-60 weight percent of a C.sub.3 -C.sub.8 alpha, beta-ethylenically unsaturated carboxylic acid monomer, preferably acrylic or methacrylic acid or a mixture thereof with itaconic or fumaric acid, (B) about 15-80 weight percent of a nonionic copolymerizable C.sub.2 -C.sub.12 alpha, beta-ethylenically unsaturated monomer, preferably a monovinyl ester such as ethyl acrylate or a mixture thereof with styrene, acrylonitrile, vinyl chloride or vinyl acetate, and (C) about 1-30 weight percent of a new and novel nonionic ethylenically unsaturated nonionic biphillic monomer such as tristyrylpoly(ethyleneoxy).sub.x methyl acrylate, to provide a stable aqueous colloidal dispersion at an acid pH lower than about 5.0 but becoming an effective thickener for aqueous systems upon adjustment to a pH of about 5.5-10.5 or higher. These polymers adjusted to a pH of about 5.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: June 23, 1998
    Assignee: Rhodia Inc.
    Inventor: Fred Robinson
  • Patent number: 5763642
    Abstract: Esterification of an ultra-low unsaturation polyoxy(higher)alkylene polyol with a dicarboxylic acid or reactive derivative thereof to form a poly(half ester) followed by capping the poly(half ester) with a capping agent capable of forming an amide linkage or ester linkage while retaining primary hydroxyl functionality, generates high primary hydroxyl content polyols with substantially retained hydrophile/lipophile balance and low polydispersity. Low color products having primary hydroxyl contents in excess of 80 equivalent percent may be routinely achieved.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: June 9, 1998
    Assignee: ARCO Chemical Technology, L.P.
    Inventor: Gangfeng Cai
  • Patent number: 5750750
    Abstract: A complex alcohol ester which comprises the reaction product of an add mixture of the following: a polyhydroxyl compound represented by the general formula:R(OH).sub.nwherein R is any aliphatic or cyclo-aliphatic hydrocarbyl group and n is at least 2, provided that the hydrocarbyl group contains from about 2 to 20 carbon atoms; a polybasic acid or an anhydride of a polybasic acid, provided that the ratio of equivalents of the polybasic acid to equivalents of alcohol from the polyhydroxyl compound is in the range between about 1.6:1 to 2:1; and a monohydric alcohol, provided that the ratio of equivalents of the monohydric alcohol to equivalents of the polybasic acid is in the range between about 0.84:1 to 1.2:1; wherein the complex alcohol ester exhibits a pour point of less than or equal to -20.degree. C., a viscosity in the range between about 100-700 cSt at 40.degree. C. and having a polybasic acid ester concentration of less than or equal to 70 wt. %, based on the complex alcohol ester.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: May 12, 1998
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Carolyn Boggus Duncan, Paul R. Geissler, David Wayne Turner, William Joseph Munley, Jr., Martin A. Krevalis
  • Patent number: 5693316
    Abstract: Fatty alkoxylate esters consisting of diesters of aliphatic or aromatic dicarboxylic acids, formed by reacting the acid with a stoichiometric excess of one or more polyalkoxylated fatty alcohols having fatty moieties containing from 14 to 22 carbon atoms. Non-aqueous compositions for topical application are also disclosed including one or more active ingredients, and an emollient agent of the fatty alkoxylate esters of the present invention.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: December 2, 1997
    Assignee: Croda, Inc.
    Inventors: Abel G. Pereira, Kevin F. Gallagher, Phillip G. Abend, John C. Carson, Jr.
  • Patent number: 5688750
    Abstract: A base fluid for metal working fluids comprises a stoichiometrically neutral salt of the partial esterification product having an acid number of 10-120, preferably 20-100 of polymerized fatty acids and a monohydric alkoxylated alcohol, selected from (a) straight or branched chain saturated monohydric C.sub.1 -C.sub.24 alcohols, alkoxylated with 2-25 moles of C.sub.2 -C.sub.5 alkylene oxide, (b) alkoxy poly(alkylene) glycol etherified with C.sub.1 -C.sub.4 aliphatic monohydric alcohol and which is alkoxylated with 2-25 moles of C.sub.2 -C.sub.5 alkylene oxide, (c) an aliphatic, straight or branched chain, saturated or unsaturated C.sub.1 -C.sub.24 monohydric alcohol, and mixtures thereof, which partial ester is converted into a stoichiometrically neutral salt by neutralizing it by ammonium hydroxide, or an alkali metal hydroxide or an alkyl amine or an alkanol amine. Also the novel stoichiometrically neutral alkali metal and alkanol amine salts of the partial esters have been claimed.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: November 18, 1997
    Assignee: Unichema Chemie B. V.
    Inventors: Nigel Andrew John Cooban, Hendrik Leendert Rieffe
  • Patent number: 5684179
    Abstract: An improved method for recovering purified diesters of polytetramethylene ethers involving the polymerization of tetrahydrofuran (THF) optionally with one or more comonomers (e.g., 3-methyl THF, ethylene oxide, propylene oxide, or the like) utilizing a solid acid catalyst (e.g., Nafion.RTM.) and a carboxylic acid with carboxylic acid anhydride (e.g., acetic acid with acetic anhydride) as molecular weight control agents wherein after polymerization product recovery involves bulk flashing of unreacted THF and stripping of remaining THF, carboxylic acid and carboxylic acid anhydride (e.g., acetic acid and acetic anhydride) by use of superheated THF. Such a process is useful in producing high purity commercial grade PTMEA that advantageously avoids problems associated with the presence of high boilers when converting to PTMEG.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: November 4, 1997
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Suriyanarayan Dorai
  • Patent number: 5672662
    Abstract: Active esters of PEG acids and related polymers are provided that have a single propionic or butanoic acid moiety and no other ester linkages. These polymer acids have a half life in water of from about 10 to 25 minutes. For example, alpha-methoxy, omega-propionic acid succinimidyl ester of PEG ("methoxy-PEG-SPA") has a nearly ideal reactivity with amino groups on proteins and other biologically active substances. The half life of methoxy-PEG-SPA is about 16.5 minutes in water. The invention also provides conjugates with proteins, enzymes, polypeptides, drugs, dyes, nucleosides, oligonucleotides, lipids, phospholipids, liposomes, and surfaces of solid materials that are compatible with living organisms, tissue, or fluid.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: September 30, 1997
    Assignee: Shearwater Polymers, Inc.
    Inventors: J. Milton Harris, Antoni Kozlowski
  • Patent number: 5650158
    Abstract: A skin-moisture-regulating composition for cosmetic or dermatological preparations, the composition containing succinic acid derivatives corresponding to formula I:R.sup.1 O(C.sub.n H.sub.2n O).sub.x CO--CHR.sup.2 --CHR.sup.3 --CO(OC.sub.n H.sub.2n O).sub.y OR.sup.4 (I)wherein R.sup.1 is an alkyl, alkenyl, mono-or dihydroxyalkyl or hydroxyalkenyl group containing 6 to 22 carbon atoms, one of R.sup.2 and R.sup.3 is hydrogen and the other is an alkyl or alkenyl group containing 12 to 22 carbon atoms, n=2 or 3, x and y are average degrees of alkoxylation and have values of 0 to 20 and 1 to 20, respectively, and R.sup.4 is hydrogen or a group R.sup.1 O--(C.sub.n H.sub.2n O).sub.x --CO--CHR.sup.2 --CHR.sup.3 --CO--, or an alkyl, alkenyl, mono- or dihydroxyalkyl or hydroxyalkenyl group containing 6 to 22 carbon atoms.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: July 22, 1997
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Horst Eierdanz, Peter Busch, Holger Tesmann, Walter Knoerr, Rolf Wachter
  • Patent number: 5612296
    Abstract: Ashless dispersants are formed using polymers of propylene characterized in that they are liquid substantially linear polymers, they have stereo-irregularity in the polymer chain, at least 60 mol percent of the polymer has a terminal vinylidene group and, optionally, the polymer contains up to 25 mol percent of ethylene or a C.sub.4 to C.sub.10 monoolefin polymerized into the polymer chains.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: March 18, 1997
    Assignee: Ethyl Corporation
    Inventors: Anthony J. Rollin, Joseph J. Valcho
  • Patent number: 5606101
    Abstract: A compound of the formula (I) or its pharmaceutically acceptable salt or ester: ##STR1## and intermediates thereof.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: February 25, 1997
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Takashi Nomoto, Masahiro Hayashi, Jun Shibata, Yoshikazu Iwasawa, Morihiro Mitsuya, Yoshiaki IIda, Katsumasa Nonoshita, Yasufumi Nagata
  • Patent number: 5597555
    Abstract: Fatty alkoxylate esters consisting of diesters of aliphatic or aromatic dicarboxylic acids, formed by reacting the acid with a stoichiometric excess of one or more polyalkoxylated fatty alcohols having fatty moieties containing from 14 to 22 carbon atoms. Non-aqueous compositions for topical application are also disclosed including one or more active ingredients, and an emollient agent of the fatty alkoxylate esters of the present invention.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: January 28, 1997
    Assignee: Croda, Inc.
    Inventors: Abel G. Pereira, Kevin F. Gallagher, Phillip G. Abend, John C. Carson, Jr.
  • Patent number: 5506309
    Abstract: This invention pertains to perfluoropolyethers and perhalogenated chlorofluoropolyethers that can be prepared by fluorinating addition polymers made by polymerizing epoxides.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 9, 1996
    Assignee: Exfluor Research Corporation
    Inventors: Thomas R. Bierschenk, Timothy Juhulke, Hajimu Kawa, Richard J. Lagow
  • Patent number: 5484543
    Abstract: Friction modifier additives useful in power transmission compositions, particularly automatic transmission fluids, is disclosed. The additive comprises Component-1 alone formed by condensing a polyamine, such as tetraethylene pentamine, with an aliphatic mono acid, such as isostearic acid, or a mixture, and/or salt, of Component-1 and a Component-2 wherein Component-2 is an acid ester formed by reacting a heterodialkanol such as thiobisethanol and a hydrocarbyl substituted dicarboxylic acid or anhydride, such as octadecenyl succinic anhydride.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: January 16, 1996
    Assignee: Exxon Chemical Patents Inc.
    Inventors: John E. Chandler, Antonio Gutierrez, Jack Ryer, Yasuhiko Yoneto, Ricardo A. Bloch, Raymond F. Watts, Robert D. Lundberg
  • Patent number: 5483008
    Abstract: The present invention relates to a bifunctional polyether having groups different from each other at both ends, with a polymerization degree of 5 to 10000 and consisting of repeating units each represented by the following formula (I): ##STR1## (wherein R.sub.1, represents a hydrogen atom, halogen atom, or a lower alkyl group optionally substituted by a halogen atom, and R.sub.1 in each repeating unit may be the same or different), as well as to a process for the preparation thereof and a polymerization initiator therefor. The process of production and polymerization initiator of the present invention enable 100% introduction of a primary amino group into one of the ends of polyether.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: January 9, 1996
    Assignee: Research Development Corporation of Japan
    Inventors: Yasuhisa Sakurai, Teruo Okano, Masayuki Yokoyama, Kazunori Kataoka, Yukio Nagasaki, Nobuyuki Ohsako, Masao Kato
  • Patent number: 5468263
    Abstract: The present invention relates to an alkylphenyl poly(oxyalkylene) polyamine acid ester fuel detergent effective for controlling deposit generated in an automobile engine, prepared by reacting polyamine and alkylphenyl poly(oxyalkylene) maleate derivative prepared by reaction of alkylphenyl poly(oxyalkylene) alcohol and maleic anhydride, through Michael reaction. A fuel detergent diluted solution comprising 5-70 wt % of said fuel detergent and an inert organic solvent, and a hydrocarbon fuel composition comprising thereof are prepared. The present invention does not use deadly toxic phosgene gas used in preparation of a deposit control additive for conventional polyether amine deposit control additive and prevents generation of amine salt to eliminate the process for removing amine salt.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: November 21, 1995
    Assignee: Yukong Limited
    Inventors: Hyun-jong Chung, Sang-chul Yim, Bon-chul Ku, Ho-young Guen, Duk-han Kim
  • Patent number: 5455025
    Abstract: Non-aqueous compositions for topical application comprising one or more active ingredients and a fatty alkoxylate ester emollient agent comprising a diester or triester of an aliphatic or aromatic tricarboxylic acid formed by reacting the acid with a stoichiometric excess of one or more polyalkoxylated fatty alcohols.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: October 3, 1995
    Assignee: Croda, Inc.
    Inventors: Abel G. Pereira, Kevin F. Gallagher, Phillip G. Abend, John C. Carson, Jr.
  • Patent number: 5453468
    Abstract: The invention relates to two classes of prepolymers containing a perfluoropolyethereal chain and carboxylic end groups, suitable as cross-linking agents for epoxy prepolymers. The first class contains anhydride-derived end groups; the second lactone-derived end groups; prepolymers therefrom are also disclosed. Additional non-fluorinated curing agents may also be added.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: September 26, 1995
    Assignee: Ausimont S.p.A.
    Inventors: Leno Mascia, Claudio Tonelli, Giovanni Simeone
  • Patent number: 5370810
    Abstract: A material useful as a dispersant additive in oleaginous compositions selected from fuels and lubricating oils comprising the reaction products of:(i) at least one intermediate adduct comprised of the reaction products of(a) at least one polyepoxide, and(b) at least one member selected from the group consisting of polyamines, polyols, and amino alcohols; and(ii) at least one of (a) hydrocarbyl substituted C.sub.3 -C.sub.10 monocarboxylic or C.sub.4 -C.sub.10 dicarboxylic acid producing material; (b) an aldehyde and a hydrocarbyl substituted hydroxy aromatic compound; or (c) an aldehyde and the reaction product of a hydrocarbyl substituted C.sub.3 -C.sub.10 monocarboxylic or C.sub.4 -C.sub.10 dicarboxylic acid or anhydride and an amine substituted hydroxy aromatic compound.Also included is a process for preparing said material and an oleaginous composition containing said material.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: December 6, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Antonio Gutierrez, Robert D. Lundberg
  • Patent number: 5364956
    Abstract: The compound described in the present invention is represented by the following general formula: R.sub.1 (OCH.sub.2 CH.sub.2).sub.n O(COACOOXO).sub.m COACO(OCH.sub.2 CH.sub.2).sub.k OR.sub.2 wherein A is C.sub.2 -C.sub.4 alkylene group or a residual group of aromatic dicarboxylic acid, namely a group formed by removing two carboxylic groups from an aromatic dicarboxylic acid,X is straight or branched chain alkylene group, a residual group of glycols (namely a group formed by removing two hydroxyl groups from a glycol) selected from the group consisting of diethylene glycol, triethylene glycol, dipropylene glycol, and tripropylene glycol, or a residual group of thiodiethanol,n is 1 to 3,R.sub.1 is selected from the group consisting of C.sub.1 -C.sub.10 alkyl or benzyl,R.sub.2 is C.sub.1 -C.sub.8 alkyl or benzyl,m is 0 to 13 andk is 0 to 3.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: November 15, 1994
    Inventor: Satoshi Matsumoto
  • Patent number: 5332860
    Abstract: Polyurethane foams having improved retention of insulative properties can be prepared using one or more of two novel polyols. One of the polyols is a polyether prepared by reacting a monoepoxide with a compound having the general formula: ##STR1## wherein X is H, Li, Na, K; A is N, S or O; L is a covalent bond or a connecting group having from 1 to 10 carbons; M is any group capable of reacting with an ethylene oxide molecule in the presence of a basic catalyst; and J is an integer from 2 to 8. The other polyol is prepared by (1) admixing ethylene carbonate and one or more hydroxyl functional compounds under reaction conditions sufficient to react the ethylene carbonate and the hydroxyl functional compounds to produce a polyol precursor, and (2) admixing the polyol precursor with diethylene glycol and an anhydride, a dicarboxylic acid, a tricarboxylic acid or mixtures thereof, optionally in the presence of a catalyst.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: July 26, 1994
    Assignee: The Dow Chemical Company
    Inventors: Douglas R. Moore, Warren A. Kaplan, Ricky L. Tabor, Alan K. Schrock
  • Patent number: 5302377
    Abstract: Fatty alkoxylate esters which are diesters or triesters of an aliphatic or aromatic dicarboxylic or tricarboxylic acid formed by reacting the acid with a stoichiometric excess of one or more polyalkoxylated fatty alcohols. Compositions for topical application are also disclosed including one or more active ingredients, water and an emollient agent of the fatty alkoxylate esters of the present invention.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: April 12, 1994
    Assignee: Croda, Inc.
    Inventors: Abel G. Pereira, Kevin F. Gallagher, Phillip G. Abend, John C. Carson, Jr.
  • Patent number: 5286835
    Abstract: Vinyl ether terminated ester oligomers having a range of molecular weights are prepared by reacting a vinyl ether terminated polybasic ester with a polyol in the presence of a catalyst. Continual removal of a hydroxy monovinyl ether avoids formation compounds containing acetal moieties. Alternatively, a polybasic ester is chain extended with a polyol with continual removal of the alcohol by-product. Then, the terminal ester moieties are end capped with a monohydroxy vinyl ether. The oligomers have application in coatings and the like.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: February 15, 1994
    Assignee: Allied-Signal Inc.
    Inventors: George D. Green, James R. Snyder, Darryl K. Barnes
  • Patent number: 5277900
    Abstract: A method of using resorbable waxes for coagulation of blood on endogenous hard tissue, especially bone, which waxes consist of waxy polyester-oligomers of hydroxybarboxylic acids which are viscous to solid at body temperature. On the basis of their structure, these waxes are degradable by endogenous metabolic mechanism, wherein the rate of degradation can be adjusted.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: January 11, 1994
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Wolfgang Ritter
  • Patent number: 5268502
    Abstract: A formaldehyde scavenger composition consisting of a water-soluble compound of the formula ##STR1## wherein, --R and R' are the identical or different and are methyl or --H[O(CH2)m]n--O--, wherein m-1-3 and n=1-19 and--Y is CH2 or --CH2--CO--CH2.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: December 7, 1993
    Assignee: West Point Pepperell
    Inventor: Joseph A. Pacifici
  • Patent number: 5264605
    Abstract: A process for preparing myoinositol polyphosphoric acid from myoinositol via a polyacylmyoinositol, a process for preparing a polysilyl-polyacylmyoinositol from a polyacylmyoinositol, and a process for preparing an optically active myoinositol polyphosphoric acid from the above product or a polysilylmyoinositol.
    Type: Grant
    Filed: February 20, 1991
    Date of Patent: November 23, 1993
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Shoichiro Ozaki, Yutaka Watanabe
  • Patent number: 5258477
    Abstract: Various novel acetal- and aldehyde-containing monomers are prepared. They can be polymerized and copolymerized by conventional polymerization techniques. The polymers contain repeating units derived from one or more ethylenically or allylically unsaturated monomers containing an acetal group or aldehyde group and optionally one or more repeating units derived from ethylenically or allylically unsaturated monomers other than the acetal-containing or aldehyde-containing monomer such as ethylene, vinyl acetate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, methyl methacrylate or acrylic acid. Aqueous emulsions of polymers containing the acetal-containing monomers and a hydroxy-containing monomer are useful as binders for nonwoven fabrics.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: November 2, 1993
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: John J. Tsai, Patrick G. Jobe, Robert L. Billmers, Rama S. Chandran, Paul R. Mudge, Michael T. Sarkis
  • Patent number: 5246993
    Abstract: Oligomeric carbodiimides having an average degree of condensation of from 2 to 30, obtainable by oligocondensation ofa) from 40 to 100 mol % of 2,4'-diisocyanatodiphenylmethane or of a 3,3',5,5'-tetra-C.sub.1 -C.sub.4 -alkyl-4,4'-diisocyanatodiphenylmethane andb) from 0 to 60 mol % of a further bi- or polyfunctional aromatic isocyanate andc) if desired, complete or partial reaction of the remaining free isocyanate groups of the oligomers with an aliphatic, araliphatic or cycloaliphatic alcohol or amine,are used mainly for stabilizing polyester-containing polyurethanes against hydrolytic degradation.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: September 21, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Deitrich Scherzer, Roland Minges, Friedhelm Lehrich, Werner Langer
  • Patent number: 5237110
    Abstract: This invention provides a novel class of vitamin D-related compounds, namely the 1.alpha.-hydroxy-19-nor-vitamin D analogs, as well as a general method for their chemical synthesis. The compounds exhibit pronounced activity in arresting the proliferation of undifferentiated cells, including malignant cells, and in inducing their differentiation, and thus represent novel therapeutic agents for the treatment of malignant and other diseases characterized by the proliferative growth of undifferentiated cells. Formulations for therapeutic use and treatment methods are also provided.
    Type: Grant
    Filed: February 16, 1990
    Date of Patent: August 17, 1993
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Hector F. DeLuca, Heinrich K. Schnoes, Kato L. Perlman, Rafal R. Sicinski, Jean M. Prahl
  • Patent number: 5234972
    Abstract: A novel itaconic acid monoester compound represented by the following general formula (1) ##STR1## (R.sub.1 represents --H or --CH.sub.3, and R.sub.2 represents a C.sub.2 -C.sub.10 alkylene group, an oxyethylene group or a derivative thereof).The above compound is ordinarily synthesized from itaconic anhydride and a hydroxyalkyl ester of (meth)acrylic acid.Further, the above compound has hydrophilic groups and hydrophobic groups in appropriate balance, is superior in hardness, compression strength and water absorbability, and is suitable for use particularly in a dental adhesive comprising the compound or a polymer thereof. When the compound is used in a dental adhesive, the dental adhesive shows strong adhesion to the teeth or a composite resin over a long period even under a wet condition inside the mouth, and has excellent durability.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: August 10, 1993
    Assignee: Ube Industries, Ltd.
    Inventors: Yoshihiro Saitoh, Kazusato Kanda, Kimio Fukuda
  • Patent number: 5219479
    Abstract: Compounds of general formula (I), wherein R.sup.1 is hydrogen, C.sub.1-4 alkyl or a group of formula (II): --O(CH(R.sup.10)CH.sub.2 O).sub.n R.sup.20, R.sup.2 is hydrogen or a group of formula (III): --O(CH(R.sup.11)CH.sub.2 O).sub.m R.sup.21, R.sup.3 is a group of formula (IV): --(CH(R.sup.12)CH.sub.2 O).sub.p R.sup.22, and R.sup.4 is a group of formula (V): --(CH(R.sup.13)CH.sub.2 O).sub.r R.sup.23, where R.sup.10, R.sup.11, R.sup.12 and R.sup.13 each is hydrogen or CH.sub.3, R.sup.20 R.sup.21, R.sup.22 and R.sup.23 each is an acyl moiety of a polycarboxylic acid, and n, m, p and r each is an integer from 1 to 15; q is 1 or 2; with the provisos that if q is 2, then the 2 groups R.sup.1 may be the same or different and the 2 groups R.sup.2 may be the same or different; and, if one or more of the groups R.sup.20, R.sup. 21, R.sup.22, and R.sup.23 is an acyl moiety of a polycarboxylic acid group, then 0-3 of the remaining carboxy groups of the polycarboxylic acid form the acyl function(s) of a moiety R.sup.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: June 15, 1993
    Assignee: Esti Chem A/S
    Inventors: Thomas Mathiesen, Jan W. Jensen
  • Patent number: 5218070
    Abstract: The invention provides an improved dental/medical restorative/prosthetic composition employing a polymerizable unsaturated substituted butane moiety with acid or reactive acid derivative functionality having the general formula:(RO.sub.2 C).sub.x --C.sub.4 H.sub.6 --(CO.sub.2 R').sub.ywhere R is an acid radical or a reactive acid derivative and R' is a polymerizable unsaturated radical having from 2 to 13 C and x is 2 to 3 and y is 1 to 2.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: June 8, 1993
    Assignee: Dentsply G.m.b.H.
    Inventor: Gordon B. Blackwell
  • Patent number: 5214195
    Abstract: The present invention provides new allyl esters of the general formula:X--CH.sub.2 --CR.sup.1 .dbd.CR.sup.2 --CO--Y--R.sup.3 --A (I)wherein R.sup.1 and R.sup.2, which can be the same or different, are hydrn or halogen atoms or alkyl or aryl radicals, R.sup.3 is a linking grouping (spacer), X is an acyloxy radical in which acyl in the acyloxy radical is the residue of an aliphatic carboxylic acid or is the radical RCO-- in which R is an organic radical, Y is an oxygen or sulphur atom or especially an --NH-- group and A is a grouping which can react with a solid carrier material F, which contains appropriate functional groups B, either after selective deblocking or directly, whereby A and B are atom groupings which react with one another with condensation and/or addition and formation of a linkage between the solid carrier material and the radical X--CH.sub.2 --CR.sup.1 .dbd.CR.sup.2 --CO--Y--R.sup.3 --.The present invention also provides processes for the preparation of these new allyl esters.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: May 25, 1993
    Assignee: Orpegen Medizinisch-Molekular Biologische Forschungsgesellschaft mbH
    Inventors: Horst Kung, Winfried Kosch, Joachim Marz
  • Patent number: 5198572
    Abstract: A composition and method of making copolymers of salicylic acid and dicarboxylic acid by reacting at least one salicylic acid with at least one dicarboxylic acid and at least one acetic anhydride for every salicylic and dicarboxylic acid present. The composition is useful for functionalizing polyphenylene ethers that are capable of forming copolymers useful for compatibilizing blends of polyphenylene ethers and polyamides.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: March 30, 1993
    Assignee: General Electric Company
    Inventors: Dwain M. White, Laura A. Socha
  • Patent number: 5169979
    Abstract: The invention relates to a curing component (A) containing active CH groups, which contains at least two groups of the formula (I) ##STR1## or structural units of the formula (I') or (I") ##STR2## in which: A denotes ##STR3## X and Y are identical or different and denote ##STR4## CO.sub.2 R.sup.1, CN, NO.sub.2, CONH.sub.2, CONR.sup.1 H or CONR.sup.1 R.sup.1, where the R.sup.1 radicals may be identical or different and represent a hydrocarbon radical, preferably an alkyl radical having 1 to 12 carbon atoms, which may also be interrupted by oxygen or an N-alkyl radical, with the proviso that only one of the two radicals X and Y may represent the NO.sub.2 group;A' denotes ##STR5## X' and Y' are identical or different and denote ##STR6## Curable mixtures of (A) and a Michael acceptor (B) and, if appropriate diluents and customary additivies cure rapidly even at low temperatures and are suitable, in particular for surface-coating preparations.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: December 8, 1992
    Assignee: Hoechst AG
    Inventors: Uwe Kubillus, Gerhard Brindopke, Helmut Plum
  • Patent number: 5142098
    Abstract: The invention relates to novel monoesters and diesters of 9,10-endoethano-9,10-dihydroanthracene-11,11-dicarboxylic acid.These novel monoesters and diesters correspond to the following structural chemical formula (II): ##STR1## in which R.sup.1 and R.sup.2 are identical or different and can represent H, an alkali metal or alkaline earth metal atom, a linear or branched alkyl group having from 1 to 6 carbon atoms, an alicyclic group having form 3 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, defined in their cis or trans variety, or an alkynyl group having from 2 to 6 carbon atoms, the said groups optionally being substituted by one or more functional groups such as ether, epoxide, halogeno, cyano, ester, aldehyde, ketone, aryl etc., where R.sup.1 and R.sup.2 cannot be H or ethyl simultaneously. These addition products constitute valuable intermediates for the preparation of methylidenemalonates in high yields and with a high purity.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: August 25, 1992
    Assignee: Laboratoires UPSA
    Inventors: Nicole Bru-Magniez, Christian De Cock, Jacques Poupaert, Jean-Luc De Keyser, Pierre Dumont
  • Patent number: 5130470
    Abstract: A process for polymerizing tetrahydrofuran using a fluorinated resin containing sulfonic acid groups a trifluoromethane sulfonic acid as catalyst and a mixture of maleic acid and maleic anhydride as weight control agent. The product has the formula ##STR1## which can be hydrogenated to produce polytetramethylene ether glycol. The preferred molecular weight range of the polytetramethylene ether glycol is 600 to 4,000.
    Type: Grant
    Filed: March 27, 1991
    Date of Patent: July 14, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Suriyanarayan Dorai, Willard L. Quon, Kirk M. Schall, Gary A. Hida
  • Patent number: 5116897
    Abstract: Described is a composition imparting antistatic properties to polyamide materials and of the general formula: ##STR1## wherein R is a C.sub.1-9 alkyl group or hydrogen, Z is a difunctional chain modifier group, R' is a C.sub.1-4 alkyl group or hydrogen and x and y are between about 10 and about 50.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: May 26, 1992
    Assignee: BASF Corporation
    Inventor: Wendel L. Burton
  • Patent number: 5103042
    Abstract: Polyethers having terminal allyl unsaturation are subject to hydrogenolysis by reaction with a hydrogen donor in the presence of a n-allyl complex forming catalyst. The product polyethers have extremely low levels of unsaturation, and thus are useful in preparing polyurethanes having improved properties and processing.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: April 7, 1992
    Assignee: The Dow Chemical Company
    Inventors: Visweswara R. Durvasula, Franz J. Luxem
  • Patent number: 5102926
    Abstract: Citrate ester compositions which are useful as compatible components in a resinous system for sheet molding compositions and have a general formula ##STR1## wherein X is selected from the group consisting of --OC.sub.3 H.sub.6).sub.3 --OCH.sub.3 and OH are disclosed. Also disclosed is a sheet molding composition which includes a four component resinous system comprising (a) an unsaturated polyester comprising a polycondensation product of one or more dihydric alcohols and one or more ethylenically unsaturated polycarboxylic acids; (b) one or more low-profile thermoplastic polymer additives which cause phase separation and internal voids during the curing reaction; (c) one or more olefinically unsaturated monomers which copolymerize with the unsaturated polyester; and, (d) one or more compatible components which remain compatible when the polyester and monomer cure and impart improved surface characteristics when added to typical low-profile resin systems.
    Type: Grant
    Filed: May 2, 1990
    Date of Patent: April 7, 1992
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Louis R. Ross, Paul R. Krumlauf, Edward L. Wilson
  • Patent number: 5080834
    Abstract: The present invention deals with novel internal branched ether esters based upon novel ether alcohols. These materials are useful as viscosity index modifiers where outstanding liquidity, resistance to oxidation, and minimal variation in viscosity as a function of temperature is required.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: January 14, 1992
    Assignee: Lce Partnership
    Inventors: J. Michael Clumpner, Anthony J. O'Lenick, Jr.
  • Patent number: 5045586
    Abstract: The present invention is directed to branched polyesters derived from the reaction product of hydroxy stearic acid or hydroxy stearic alkoxylate, a guerbet alochol or guerbet alcohol alkoxylate, which product is further reacted with a polycarboxylic acid to provide the required branching in the polyester structure. The invention is also directed to the preparation, compositions and application of said internal plastic lubricants, particularly suited for use in forming of polycarbonate thermoplastics.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: September 3, 1991
    Inventor: Anthony J. O'Lenick, Jr.
  • Patent number: 5039754
    Abstract: A polymeric peroxide comprising a dilvalent recurring unit having the formula: ##STR1## wherein the recurring unit of Formula I has a 10 hour half-life temperature of at least 80.degree. C. and optionally a divalent recurring unit having the formula: ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.5, X, X.sup.1, Y, Z, y and z are as defined in the Detailed Description of the Preferred Embodiments and the polymeric peroxide has a molecular weight of 1,000 to 200,000. The polymeric peroxides are derived from hydroxy-hydroperoxides of dihydroxy dialkyl peroxides. These polymeric peroxides can be used for preparing block copolymers and compatibilizing polymer blends and alloys.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: August 13, 1991
    Assignee: Atochem North America, Inc.
    Inventor: Jose Sanchez
  • Patent number: 5015759
    Abstract: A process for increasing the direct esterification reaction rate between a diacid and 1,4-butanediol and for directly esterifying greater than 95% of the acid ends of the diacid by mixing in any order the diacid, the 1,4-butanediol and a catalyst compound selected from organo-titanium, organo-tin, and organo-zirconium compounds, to form a reaction mixture wherein the ratio of diol:diacid is at least 2:1 and then reacting the reaction mixture at an average temperature ranging between 190.degree. C. to 200.degree. C. for a period of time no longer than sixty minutes. The same process may be followed substituting ethylene glycol for 1,4-butanediol, provided the catalyst compound is added neat, further provided that the average reaction temperature ranges from 190.degree. C. to 200.degree. C., and also provided that the reaction mixture be reacted for a period of time no longer than seventy minutes.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: May 14, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: David J. Lowe
  • Patent number: 5011629
    Abstract: The invention deals with the preparation, compositions, and application of certain high molecular weight polyesters of 12 hydroxystearic acid, which are useful in polycarbonate processing.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: April 30, 1991
    Inventor: Raymond E. Bilbo
  • Patent number: 5008338
    Abstract: A process is disclosed for preparing hydroxyethers of epoxidized polybutenes wherein the epoxide groups of said epoxidized polybutenes are about 70% trisubstituted and about 20% tetrasubstituted. Hydroxyl compounds are reacted with epoxidized polybutenes to obtain compounds of increased flexibility, water resistance, lubricity, and adhesion as compared with said hydroxyl compounds.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: April 16, 1991
    Assignee: Amoco Corporation
    Inventors: Wayne T. Riddick, Vincent F. Smith, Jr.
  • Patent number: 5004569
    Abstract: The invention relates to a process for the production of carboxylic acid esters from carboxylic acids and alcohols which is characterized in that neutral phosphites containing oxetane groups are used as esterification catalysts.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: April 2, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Martin Meier, Klaus Kircher, Klaus Berg