Aryl Group Patents (Class 524/240)
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Patent number: 6417253Abstract: The color stability of thermoplastic polymers comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one organodicarboxylic acid is enhanced by combination with at least one photobleachable 4-aminocinnamic compound such as 4-dimethylaminocinnamaldehyde. The latter absorbs radiation in the range between about 360 nanometers and about 390 nanometers, balancing the radiation absorbed by hydroxybenzophenone moieties formed in the polymer.Type: GrantFiled: March 22, 2001Date of Patent: July 9, 2002Assignee: General Electric CompanyInventor: Alexander Isaakovich Shakhnovich
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Patent number: 6414058Abstract: The color stability of thermoplastic polymers comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one organodicarboxylic acid is enhanced by combination with at least one photobleachable 4-aminocinnamic compound such as 4-dimethylaminocinnamaldehyde. The latter absorbs radiation in the range between about 360 nanometers and about 390 nanometers, balancing the radiation absorbed by hydroxybenzophenone moieties formed in the polymer.Type: GrantFiled: March 22, 2001Date of Patent: July 2, 2002Assignee: General Electric CompanyInventor: Alexander Isaakovich Shakhnovich
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Patent number: 6410620Abstract: The color stability of thermoplastic polymers comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one organodicarboxylic acid is enhanced by combination with at least one photobleachable 4-aminocinnamic compound such as 4-dimethylaminocinnamaldehyde. The latter absorbs radiation in the range between about 360 nanometers and about 390 nanometers, balancing the radiation absorbed by hydroxybenzophenone moieties formed in the polymer.Type: GrantFiled: March 22, 2001Date of Patent: June 25, 2002Assignee: General Electric CompanyInventor: Alexander Isaakovich Shakhnovich
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Publication number: 20020010241Abstract: A polyolefin composition comprising from 10 to 95% by weight of a crystalline propylene polymer, A) having an MFR value equal to or lower than 60 g/10 min., and from 5 to 90% by weight of an ultra high molecular weight polyethylene, B) in form of particles having a mean particle size of from 300 to 10 &mgr;m.Type: ApplicationFiled: August 19, 1999Publication date: January 24, 2002Inventors: SILVIO PITTERI, MIET WILLEMS
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Patent number: 6201049Abstract: A rubber composition which is superior in ozone resistance and is hard to be discolored brown and white which comprises 0.5 to 2.5 parts by weight of a wax containing a component with 45 or more carbon atoms and having an average number of carbon atoms of 28 to 38 and 3.0 to 7.0 parts by weight of antioxidant containing 30 to 100% by weight of N-(1-methylheptyl)-N′-phenyl-p-phenylenediamine per 100 parts by weight of a diene rubber component.Type: GrantFiled: March 26, 1998Date of Patent: March 13, 2001Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Shuichi Sakamoto, Masato Kawase, Noboru Wakabayashi, Isamu Tsumori, Marina Kotani, Yoichi Mizuno
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Patent number: 6180701Abstract: There are provided a resin composition having excellent wear properties and high flame retardancy, and a resin molding that results from melt molding of such composition. The resin composition is essentially comprised of: (A) a polycarbonate resin; (B) a modified polyolefin resin; (C) a compound represented by HOOC—R—NH2 where R is an alkylene, alkylidene, oligomethylene, phenylene or naphthylene group having 5 or more carbon atoms, respectively, wherein each of the phenylene and naphthylene groups may have substituent group; and (D) a specific phosphate ester.Type: GrantFiled: March 18, 1999Date of Patent: January 30, 2001Assignee: Kawasaki Steel CorporationInventors: Kazuya Takemura, Kunihiko Eguchi, Masato Takagi, Taichi Ogawa
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Patent number: 6121351Abstract: Thermoplastic compositions containing certain anthraquinone polysulfonamide colorants incorporated therein as toners or colorants. The anthraquinone colorant moieties which are incorporated into the polymer chain of the polysulfonamide colorants are not leachable, sublimable or extractable and do not exude from the thermoplastic compositions. The anthraquinone polysulfonamide colorants may be added to the thermoplastic polymers during production or melt blended with the polymer by conventional techniques to produce transparent thermoplastic compositions useful for a variety of end uses where nonmigrating or nonextractable colorants are needed.Type: GrantFiled: August 7, 1997Date of Patent: September 19, 2000Assignee: Eastman Chemical CompanyInventors: Max Allen Weaver, Wayne Payton Pruett, Kay Hunt Shackelford, Samuel David Hilbert
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Patent number: 6103777Abstract: A thermoplastic molding composition having low haze values, suitable for optical applications is disclosed. The compositions contains a resinous component selected from the group consisting of (i) a homogeneous blend of polycarbonate resin and polycaprolactone and (ii) a copoly(carbonate-lactone) block or random copolymer, and melanin in an amount of 0.1 to 1.0 parts per hundred parts of weight of the resinous component.Type: GrantFiled: December 18, 1998Date of Patent: August 15, 2000Assignee: Bayer CorporationInventors: Sivaram Krishnan, Robert A. Pyles, James B. Johnson
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Patent number: 6071983Abstract: A curable dental adhesive composition of the type including polymerizable monomer and polymerization initiator may be easily prepared and applied to a tooth surface by using a tool which includes fibrous or sponge material, adapted to fit within a person's mouth, and carrying at least part of the polymerization initiator. Polymerizable monomer and any remaining polymerization initiator as well as filler and other ingredients may be brought into contact with the tool to form the curable composition just prior to applying the composition to the tooth surface. The tool may be part of a kit which also includes a container for polymerizable monomer and, as necessary, one or more additional containers for remaining polymerization initiator(s), fillers, etc. No separate mixing container is required.Type: GrantFiled: June 12, 1998Date of Patent: June 6, 2000Assignee: Sun Medical Co., Ltd.Inventors: Takashi Yamamoto, Weiping Zeng, Masami Arata, Tsuyoshi Banba, Harumi Tanaka
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Patent number: 6028131Abstract: The invention relates to compounds of the formula I ##STR1## in which R is C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.8 cycloalkyl, C.sub.7 -C.sub.9 phenylalkyl, --CH.sub.2 --A--R.sub.2 or a group of the formula II, ##STR2## R.sub.1 is C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.8 cycloalkyl, C.sub.7 -C.sub.9 phenylalkyl or a group of the formula (II),R.sub.2 is C.sub.4 -C.sub.18 alkyl, --(CH.sub.2).sub.m --COOR.sub.5 or a group of the formula III, ##STR3## R.sub.3 is hydrogen, C.sub.5 -C.sub.8 cycloalkyl or C.sub.1 -C.sub.12 alkyl,R.sub.4 is C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.8 cycloalkyl, C.sub.7 -C.sub.9 phenylalkyl or a group of the formula II or IV, ##STR4## A is S or SO, E is a direct bond, --CH.sub.2 --, --CH.sub.2 --O-- or --CH.sub.2 --NH--,G is --O-- or --NR.sub.3 --,Y is C.sub.1 -C.sub.18 alkyl, cyclohexyl, phenyl or alpha- or beta-naphthyl,R.sub.5 is C.sub.1 -C.sub.18 alkyl, andm is 1 or 2,with the provisos thateither at least one of the radicals R and R.sub.Type: GrantFiled: April 27, 1998Date of Patent: February 22, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Hans-Rudolf Meier, Gerrit Knobloch
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Patent number: 5919850Abstract: This invention provides an ultraviolet ray absorbing polymer particle which includes a first ultraviolet particle which includes a first ultraviolet ray absorber represented by formula I: ##STR1## and a second ultraviolet ray absorber represented by formula II: ##STR2##Type: GrantFiled: March 12, 1997Date of Patent: July 6, 1999Assignee: Eastman Kodak CompanyInventors: Yongcai Wang, Dennis E. Smith, Kurt M. Schroeder
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Patent number: 5905100Abstract: A novel composition and process are disclosed for forming crosslinked gels at elevated temperatures utilizing a novel crosslinking agent system containing hexamethylenetetramine, a water dispersible aminobenzoic acid compound or phenol, an acrylamide-containing polymer, and water.Type: GrantFiled: March 10, 1992Date of Patent: May 18, 1999Assignee: Phillips Petroleum CompanyInventor: Ahmad Moradi-Araghi
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Patent number: 5886135Abstract: A process is provided for preparing a dispersion of a polyamide in water, said process comprising:dissolving a polyamide having an amine value of greater than about 2 in an organic solvent to form a solution of said polyamide in said solvent, said polyamide and said solvent being at a temperature below the softening point of said polyamide during said dissolving, said solution further comprising a surfactant and an inorganic alkaline material,adding sufficient water containing an acid to said solution with mixing to form an oil-in-water dispersion, the temperature of said solution and said water being below the softening point of said polyamide during said adding, the amount of said acid being sufficient to neutralize a portion of said inorganic alkaline material, but insufficient to coagulate said polyamide from the resulting oil-in-water dispersion, andremoving at least a major amount of said organic solvent from said oil-in-water dispersion.Type: GrantFiled: May 8, 1997Date of Patent: March 23, 1999Assignee: Henkel CorporationInventors: Stephen A. Fischer, Michael S. Wiggins, Chase J. Boudreaux
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Patent number: 5834532Abstract: A curable composition comprising a polymerizable monomer having an acidic group in its molecule and an initiator. The composition has a viscosity in the range of from 100 to 30,000 cP at 37.5.degree. C. and may have additionally contain other polymerizable monomer and/or a filler. The composition is applied to a tooth surface directly or after applying a primer composition. There is also provided the primer composition which comprises a polymerizable monomer having an acidic group and a solvent.Type: GrantFiled: June 9, 1997Date of Patent: November 10, 1998Assignee: Sun Medical Co., Ltd.Inventors: Takashi Yamamoto, Weiping Zeng, Masami Arata, Tsuyoshi Banba, Harumi Tanaka
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Patent number: 5821292Abstract: The use of 3-arylacrylic esters I ##STR1## where Ar is an aryl radical which can additionally carry substituents,R.sup.1 is the residue of an n-hydric aliphatic polyol having up to 20 carbon atoms, where the carbon chain can be interrupted by up to 9 non-adjacent oxygen atoms, or of an n-hydric cyclo-aliphatic polyol having 5 to 20 carbon atoms in which ring carbon atoms can also be replaced by non-adjacent oxygen atoms,R.sup.2 and R.sup.3 are hydrogen or C.sub.1 --C.sub.4 -alkyl, andn is a number from l to 10,as stabilizers, in particular against the action of light, for non-living organic material.Type: GrantFiled: May 12, 1997Date of Patent: October 13, 1998Assignee: BASF AktiengesellschaftInventors: Alexander Aumuller, Martin Holderbaum, Wolfgang Goetze, Jurgen Krockenberger, Hubert Trauth
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Patent number: 5804682Abstract: A process is provided for preparing a dispersion of a polyamide in water, said process comprising:forming a solution of a polyamide having an acid value of greater than about 2 in an organic solvent to form a solution of said polyamide in said solvent, said polyamide and said solvent being at a temperature below the softening point of said polyamide during said dissolving, said solution further comprising a surfactant, wherein at least a portion of the acid value of said polyamide is neutralized,adding sufficient water to said solution with mixing to form an oil-in-water dispersion, the temperature of said solution and said water being below the softening point of said polyamide during said adding, andremoving at least a major amount of said organic solvent from said oil-in-water dispersion. The resulting dispersion is useful in preparing a coating of the polyamide, which coating is useful as an adhesive.Type: GrantFiled: October 25, 1996Date of Patent: September 8, 1998Assignee: Henkel CorporationInventors: Stephen A. Fischer, David I. Devore, Kartar S. Arora, Reimar Heucher, Michael S. Wiggins, Chase J. Boudreaux, Dwight D. Heinrich
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Patent number: 5792800Abstract: This invention relates to the discovery that esters of aminobenzoic acid, when used as a replacement in whole or in part of conventional cobalt materials, maintains the rubber-to-wire adhesion properties.Type: GrantFiled: January 2, 1997Date of Patent: August 11, 1998Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, William Paul Francik, Adel Farhan Halasa
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Patent number: 5703154Abstract: A premolded EPDM pipe flashing composition comprises 100 parts by weight of an elastomeric polymer comprising from about 70 to 95 parts by weight of at least one amorphous ethylene-propylene-diene terpolymer and from 5 to about 30 parts by weight of at least one crystalline or semi-crystalline ethylene-propylene-diene terpolymer; from about 35 to 175 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof, per 100 parts of the polymer; from about 30 to 110 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer; and from about 0.6 to 7.5 parts by weight of a cure package, per 100 parts of the polymer, the cure package comprising from about 0.1 to 1.5 parts by weight sulfur and from 0.5 to 6 parts by weight of at least one sulfur vulcanizing accelerator.Type: GrantFiled: July 11, 1996Date of Patent: December 30, 1997Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, William A. Wasitis, William F. Barham
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Patent number: 5599865Abstract: The invention relates to a molded product containing 65 to 95% by weight of a polymer composition and 5 to 35% by weight of an inorganic filler. The polymer composition is a mixture of 45 to 70 parts by weight of a polypropylene resin having a melt flow rare of 10 to 60 g/10 minute and containing 0 to 8% by weight of ethylene, and 30 to 55 parts by weight of an amorphous ethylene-.alpha.-olefin copolymer. The proportion (D) of the filler and that (C) of the copolymer have the relation expressed as D>155-37 lnC. The copolymer is a mixture of 30 to 60% by weight of a high-molecular copolymer having a weight-average molecular weight of 380,000 to 1,000,000 and 40 to 70% by weight of a low-molecular one having weight-average molecular weight of 150,000 to 330,000. The product has a coefficient of linear expansion not exceeding 5.0.times.10.sup.-5 cm/cm/.degree.C.Type: GrantFiled: May 8, 1995Date of Patent: February 4, 1997Assignee: Toyoda Goesi Co., Ltd.Inventors: Junji Koizumi, Junji Takeuchi
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Patent number: 5587406Abstract: A curable composition comprising a polymerizable monomer having an acidic group in its molecule and an initiator. The composition has a viscosity in the range of from 100 to 30,000 cP at 37.5.degree. C. and may have additionally contain other polymerizable monomer and/or a filler. The composition is applied to a tooth surface directly or after applying a primer composition. There is also provided the primer composition which comprises a polymerizable monomer having an acidic group and a solvent.Type: GrantFiled: May 25, 1995Date of Patent: December 24, 1996Assignee: Sun Medical Co., Ltd.Inventors: Takashi Yamamoto, Weiping Zeng, Masami Arata, Tsuyoshi Banba, Harumi Tanaka
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Patent number: 5530038Abstract: A curable composition comprising a polymerizable monomer having an acidic group in its molecule and an initiator. The composition has a viscosity in the range of from 100 to 30,000 cP at 37.5.degree. C. and may have additionally contain other polymerizable monomer and/or a filler. The composition is applied to a tooth surface directly or after applying a primer composition. There is also provided the primer composition which comprises a polymerizable monomer having an acidic group and a solvent.Type: GrantFiled: August 2, 1994Date of Patent: June 25, 1996Assignee: Sun Medical Co., Ltd.Inventors: Takashi Yamamoto, Weiping Zeng, Masami Arata, Tsuyoshi Banba, Harumi Tanaka
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Patent number: 5516565Abstract: There is provided a highly biodegradable resin composition comprising a hydroxyalkanoate polymer and a crystallization nucleating agent. The resin composition may typically comprise a hydroxybutyrate homopolymer or a hydroxybutyrate-hydroxyvalerate copolymer and an aromatic amino acid. There is also provided a device prepared by using such a resin composition. The resin composition of the invention is capable of undergoing a crystallization at a high speed to provide the article molded therefrom with improved properties. The resin composition is also highly degradable in an animal body or in the environment.Type: GrantFiled: June 8, 1994Date of Patent: May 14, 1996Assignee: Terumo Kabushiki KaishaInventor: Atsushi Matsumoto
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Patent number: 5510402Abstract: The novel compounds of the formula I ##STR1## in which n is an integer from the range from 4 to 8 and m is an integer from the range from 1 to 4,A is the aliphatic, aromatic, araliphatic or heterocyclic radical of a monobasic to tetrabasic carboxylic acid, andR.sup.1 and R.sup.1', independently of one another, are C.sub.1 -C.sub.24 alkyl or C.sub.5 -C.sub.8 cycloalkyl, are suitable for stabilizing organic material against thermal, oxidative or actinic degradation.Type: GrantFiled: November 24, 1993Date of Patent: April 23, 1996Assignee: Ciba-Geigy CorporationInventors: Paul Dubs, Rita Pitteloud
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Patent number: 5500470Abstract: A water-based bonding agent material made of an acrylic polymer or copolymer emulsion, metal salt complexed with an amine and surfactant is useful for unitizing packages having synthetic polymer surfaces.Type: GrantFiled: September 6, 1994Date of Patent: March 19, 1996Assignee: W.R. Grace & Co.-Conn.Inventors: Srinivas K. Mirle, Eugene E. Carney
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Patent number: 5407985Abstract: Stable aqueous microdispersions of finely divided polyamide resin particles and methods for the manufacture thereof are provided. The properties of these microdispersions are achieved by the addition thereto of an effective amount of a co-surfactant such as a lower alkyl alcohol. The provided microdispersions can be drawn into films which will form clear, continuous films at ambient or near-ambient temperatures regardless of the softening point of the polyamide resin. Dispersions according to this invention find use in hot melt adhesives, coatings, inks, and the like.Type: GrantFiled: March 25, 1991Date of Patent: April 18, 1995Assignee: Union Camp CorporationInventor: George A. Smith
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Patent number: 5354838Abstract: A blood separation composition for use in blood collection tubes. The composition comprises, as a gel-like material that is the main ingredient or the composition, a copolymer of sebacic acid with 2,2-dimethyl-1,3-propanediol and 1,2-propanediol. The separation composition may further comprise a thixotropic agent blended with the copolymer. The copolymer renders the blood separation composition stable and less flowable during storage, allowing it to form a stable partition barrier in each collection tube when centrifuged. The blood cells above the barrier are prevented from remaining within the serum, without any amount of harmful oily substances being released from the separation composition.Type: GrantFiled: July 21, 1993Date of Patent: October 11, 1994Assignees: Nissho Corporation, Hokoku Oil Mill Co., Ltd.Inventors: Kazunori Murakami, Tetsuo Taguchi
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Patent number: 5321067Abstract: Compounds prepared by the addition of the mercaptan group of 3,5-dialkyl-4-aminobenzenethiol to activated ethylenic double bonds or the sulfenyl chloride of 3,5-dialkyl-4-aminobenzenethiol to trialkyl phosphites are effective stabilizers for organic materials subject to oxidative and/or thermal degradation.Type: GrantFiled: June 24, 1992Date of Patent: June 14, 1994Assignee: Ciba-Geigy CorporationInventor: Stephen D. Pastor
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Patent number: 5281643Abstract: A process for increasing the crystallization rate and crystallization temperature of thermoplastic polyesters by incorporating into the polyesters quaternary ammonium salts in amounts effective to increase the crystallization temperatures of the polyesters at least 15.degree. C., which quaternary ammonium salts are substantially free of metal salts of organic acid functional groups. Molding compositions of thermoplastic polyesters and quaternary ammonium salts present in amounts effective to increase the crystallization temperatures of the polyesters at least 15.degree. C.Type: GrantFiled: May 28, 1991Date of Patent: January 25, 1994Assignees: Istituto Guido Donegani S.p.A., Enichem S.p.A.Inventor: Kavilipalayam M. Natarajan
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Patent number: 5278227Abstract: There is provided inherently tacky, emulsion pressure-sensitive adhesive polymers comprising about 35 to about 65 percent by weight alkyl acrylates, about 15 to about 35 percent vinyl esters, about 20 to about 35 percent by weight diesters of a dicarboxylic acid, and up to about 5 percent by weight of an unsaturated carboxylic acid. There is preferably included in the monomers a reactive surfactant and a chelating monomer, with or without a chain transfer agent. The preferred polymers have a glass transition temperature less than about -30.degree. C. and a gel content of about 50 to 70 percent by weight.Type: GrantFiled: October 21, 1992Date of Patent: January 11, 1994Assignee: Avery Dennison CorporationInventor: Margaret M. Bernard
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Patent number: 5252628Abstract: A method of making pigmented hydrophilic polymers in such a manner that the resulting polymers absorb ultraviolet and visible radiation, and that no migration, separation or leaching of the pigment can take place, is disclosed. The polymer compositions comprise blends of hydrophilic polymers with melanin pigments, the latter being synthesized on the hydrophilic polymer matrix. The disclosed polymer compositions are useful in the manufacture of ocular devices, particularly intraocular lenses and aphakic contact lenses capable of absorbing ultraviolet and visible radiation, at wavelengths between 300 and 700 nanometers, to the same extent as the natural crystalline lens of the eye. The disclosed method is also useful to impart photoprotective properties to the already made said ocular devices.Type: GrantFiled: December 7, 1989Date of Patent: October 12, 1993Assignee: Lions Eye Institute of Western Australia, Inc.Inventors: Traian V. Chirila, Ian J. Constable, Richard L. Cooper
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Patent number: 5236996Abstract: Stable aqueous dispersions of finely divided piperazine-containing polyamide resin particles and methods for the manufacture thereof are provided. Dispersions according to this invention find use in hot melt adhesives, coatings, inks, and the like.Type: GrantFiled: July 24, 1991Date of Patent: August 17, 1993Assignee: Union Camp CorporationInventor: George A. Smith
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Patent number: 5179136Abstract: A novel composition and process are disclosed for forming crosslinked gels at elevated temperatures utilize a novel crosslinking agent comprising at least one aminobenzoic acid compound and a water dispersible aldehyde or aldehyde generating compound.Type: GrantFiled: September 10, 1990Date of Patent: January 12, 1993Assignee: Phillips Petroleum CompanyInventor: Ahmad Moradi-Araghi
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Patent number: 5126394Abstract: The present invention relates to coating compositions containing multifunctional acrylate monomers, acrylic monomers and colloidal silica. Silanes are absent from these coating compositions. Transparent, abrasion resistant coatings result from the cure, either by ultraviolet light or electron beam radiation, of these compositions.Type: GrantFiled: October 18, 1989Date of Patent: June 30, 1992Assignee: Dow Corning CorporationInventors: Anthony Revis, Levi J. Cottington
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Patent number: 5095058Abstract: Aqueous dispersions of polyamide resins having improved stability with respect to gelation and phase separation are provided, along with preparative methods therefor. The improved stability of the provided aqueous dispersions is achieved by the addition to such dispersion of a chemical moiety, such as a water soluble, amphoteric amino acid, anionic and cationic salts of amino acid, or mixtures thereof, in aqueous solutions. In a preferred embodiment, a dispersion-stabilizing amount of glycine is added with the inversion water used to invert an emulsion of water in polyamide resin. The resulting emulsion of resin in water is then cooled below the resin's melting point, causing the emulsified droplets of the polyamide resin to solidify as finely divided particles which are dispersed uniformly through the aqueous phase. The stable, aqueous dispersions of this invention are useful in coatings, inks, and as coatings for hot melt adhesive applications.Type: GrantFiled: March 4, 1991Date of Patent: March 10, 1992Assignee: Union Camp CorporationInventors: George A. Smith, Scott R. Hagedorn
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Patent number: 5032640Abstract: The description is given of a composition, which can be added to the bituminous binder during the preparation of the bituminous conglomerate used for paving roads, for giving the conglomerate high mechanical characteristics and resistance to high and low temperatures.Type: GrantFiled: June 23, 1989Date of Patent: July 16, 1991Inventor: Marco Fachini
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Patent number: 5021479Abstract: Substituted hydroxylamine ester stabilizers corresponding to the formula ##STR1## wherein n is 0-2, X is a direct bond, --S-- or --CH.sub.2 S--, R.sub.1 and R.sub.2 are independently hydrogen, alkyl, cycloalkyl, aralkyl, R.sub.3 and R.sub.4 are independently alkyl, cycloalkyl or aralkyl, and R.sub.5 is hydrogen or the group ##STR2## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation.Type: GrantFiled: October 12, 1989Date of Patent: June 4, 1991Assignee: Ciba-Geigy CorporationInventors: Ramanathan Ravichandran, Stephen D. Pastor
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Patent number: 5015676Abstract: A process for enhancing the electrostatic chargeability of powder coatings or powders intended for surface-coating solid objects, by homogeneously incorporating at least one salt-like, cationic compound of the formulae (1) and/or (2) ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, are hydrogen atoms, straight-chain or branched alkyl groups having 1 to 30 carbon atoms, oxethyl groups of the formula --(CH.sub.2 --CH.sub.2 --O).sub.n --R in which R is a hydrogen atom or a (C.sub.1 -C.sub.4)alkyl or acyl group, and n is a number from 1 to 10, mononuclear or polynuclear cycloaliphatic radicals having 5 to 12 carbon atoms, mononuclear or polynuclear aromatic radicals or araliphatic radicals, R.sub.5 denotes a hydrogen, fluorine, chlorine or bromine atom or a (C.sub.1 -C.sub.6)alkoxy or primary amino group, and where R.sub.1 and R.sub.3 may be part of a ring system having 5 to 7 atoms and 0 to 3 double bonds, and A.sup.Type: GrantFiled: November 3, 1988Date of Patent: May 14, 1991Assignee: Hoechst AktiengesellschaftInventors: Hans-Tobias Macholdt, Alexander Sieber, Claus Godau, Albrecht Manz
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Patent number: 5002990Abstract: Quickly crystallizing polyester compositions containing as nucleating agent a compound having the formula: ##STR1## wherein: Me is an alkali metal or alkaline-earth metal;X is a group selected from --CH.sub.2 --, --CO--, --CH.sub.2 --CO--, and --CH(CH.sub.3)--CO);p is 0 or 1;Ar is a single or condensed aromatic ring, or Ar represents 2 or more aromatic nuclei linked either by a simple bond or by an --O--, --S--, --SO.sub.2 --, --SO--, --CO--, --CS--, or --NH-- group;R, R.sub.1, R.sub.2 may be, independently of each other, H, a linear or branched C.sub.1 -C.sub.6 alkyl radical, optionally substituted with halogen atoms or C.sub.1 -C.sub.6 alkoxy groups;Y is H or --CH.sub.3 ;m is 1 when Y is --CH.sub.3, or a number from 1 to 5 when Y.dbd.H;n is a number from 1 to 500; andZ is --H, a C.sub.1 -C.sub.18 alkyl, benzyl, allyl, glycidyl, acetyl, --CO--NH--R.sub.3 or --CO--NH--R.sub.4 --NCO group.Type: GrantFiled: February 27, 1989Date of Patent: March 26, 1991Assignee: Montefibre S.p.A.Inventors: Catia Bastioli, Vittorio Bellotti, Nello Gazzarata
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Patent number: 4937138Abstract: A hot melt adhesive, a laminar structure, and non-woven article fabricated from a blend comprising:from about 50 percent by weight to about 5 percent by weight of a butene-1 homopolymer or copolymer;from about 50 percent by weight to about 95 percent by weight of a tackifying resin;from a 0.01 to about 1 phr of a nucleating agent;up to about 1 part per hundred (phr) of a stabilizer;up to about 30 phr of a plasticizer; andup to about 30 phr of a wax.Type: GrantFiled: February 29, 1988Date of Patent: June 26, 1990Assignee: Shell Oil CompanyInventor: Simon Mostert
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Patent number: 4904719Abstract: The invention relates to noncorrosive, aqueous emulsions containing an organopolysiloxane and an emulsifier selected from a compound of the general formula ##STR1## a compound of the formula ##STR2## or mixtures thereof in which R is an aliphatic, saturated or unsaturated alkylcarbonyl radical of a carboxylic acid having from 5 to 30 carbon atoms or a saturated or unsaturated alkylphenylcarbonyl radical, where the alkyl group has from 2 to 20 carbon atoms, R.sup.1 is a hydrogen or a methyl radical, R.sup.2.sym. is an alkali metal cation or an ammonium ion of the general formulaH.sub.4-n N.sup..sym. R.sub.n.sup.3,where R.sup.3, which is the same or different, is an hydroxylated alkyl radical having from 1 to 20 carbon atoms or a radical of the general formula --(C.sub.y H.sub.2y O).sub.x H, where x is an integer of from 1 to 10, y is 2 or 3 and n may be 0, 1, 2 or 3, R.sup.4 is an alkali metal or alkaline-earth metal cation which forms a salt with the carboxyl group, R.sup.Type: GrantFiled: August 8, 1988Date of Patent: February 27, 1990Assignee: Wacker-Chemie GmbHInventor: Ulrich Michel
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Patent number: 4889879Abstract: Coherent thermoplastic aggregates with very high content of pulverized mineral materials, composed of the said materials, of polyolefin polymers and/or copolymers, and possibly also of various familiar adjuvants, characterized by the fact that, in order for them to have both a volumetric mass close to or at most equal to the theoretical volumetric mass of the pulverized mineral substances entering into their composition and an excellent compatibility with redispersion polymers, the polymers and/or copolymers entering into the composition of the said aggregates in presence of a fluidizing agent are chosen within the group of thermoplastics with melting and/or softening point at least equal to 60.degree. C. and index of fluidity at least 50 (measured according to the standard ASTM D 1238) of the polyolefin type, other than those containing a polar monomer.Type: GrantFiled: July 24, 1987Date of Patent: December 26, 1989Assignee: Pluess Staufer AGInventors: Henry Seinera, Patricia Luberne, Claude Stock, Patrick Trouve
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Patent number: 4877824Abstract: Compounds of the formula (I) ##STR1## in which the Rs independently of one another are H, phenyl, naphthyl or C.sub.7 -C.sub.30 alkaryl and R.sup.1 is H, C.sub.1 -C.sub.8 alkyl, C.sub.7 -C.sub.9 aralkyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl, naphthyl, C.sub.7 -C.sub.30 alkaryl or a group of the formula (II)--(CH.sub.2).sub.a --SR.sup.3 (II)R.sup.2 is C.sub.7 -C.sub.30 alkaryl, phenyl, naphthyl or phenyl containing, in the para-position, an HO or C.sub.1 -C.sub.18 alkoxy group or a group of the formulae ##STR2## or R.sup.1 and R.sup.2, together with the nitrogen atom to which they are attached, are a radical of the formula (III) ##STR3## R.sup.3 is a radical of the formulae --(CH.sub.2).sub.b --COOR.sup.6 or --(CH.sub.2).sub.2 OCOR.sup.7, a is the number 1, 2 or 3 and b is the number 1 or 2, and R.sup.4 is phenyl or a group of the formula (II), the two R.sup.5 s independently of one another are H, C.sub.1 -C.sub.24 alkyl, C.sub.5 -C.sub.12 cycloalkyl or C.sub.7 -C.sub.9 aralkyl, and R.sup.6 is H, C.sub.1 -C.Type: GrantFiled: January 25, 1989Date of Patent: October 31, 1989Assignee: Ciba-Geigy CorporationInventor: Samuel Evans
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Patent number: 4855346Abstract: There are disclosed novel compounds of the formula: ##STR1## wherein n=0 or 1, R.sub.1 is selected from the group consisting of a hydrogen atom, straight chain and branched chain alkyl groups and alkoxy groups, and cycloalkyl groups and cycloalkoxy groups having 5 to 8 carbon atoms, R.sub.2 is selected from the group consisting of lower alkyl groups having 1 to 5 carbon atoms, X is an oxygen atom if n=0 or a nitrogen atom if n=1, Y is selected from the group consisting of a hydrogen atom, straight chain and branched chain alkyl groups having 1 to 18 carbon atoms, cycloalkyl groups having 5 to 8 carbon atoms, alkenyl groups having 3 to 18 carbon atoms, phenyl groups, alkylphenyl groups having 7 to 14 carbon atoms and aralkyl groups having 7 to 15 carbon atoms, and R.sub.3 is selected from the same group as Y, or together with X and Y forms part of a heterocyclic ring composed of 5 or 6 atoms in which X is the hetero-nitrogen atom.Type: GrantFiled: September 4, 1984Date of Patent: August 8, 1989Assignee: Akzona IncorporatedInventors: Paul K. Battey, Peter Hope, Ashutosh H. Sharma
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Patent number: 4851543Abstract: The invention relates to a novel water soluble aminobenzoic acid in a complexed state which is derived from the reaction between a poly(N-vinyl-2-pyrrolidone)-halogen complex and an aminobenzoic acid and to the process for the preparation of said multicomplex.Type: GrantFiled: February 1, 1988Date of Patent: July 25, 1989Assignee: GAF CorporationInventor: Eugene S. Barabas
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Patent number: 4824889Abstract: A hot melt adhesive comprising a blend of:from about 10% by weight to about 90% by weight of a blend of from 10% by weight to 90% by weight of an at least partially crystalline copolymer of butene-1 and ethylene, wherein the ethylene content is from about 1 mole percent to about 20 mole percent of said copolymer, and from 10% by weight to 90% by weight of a butene-1 homopolymer;from about 10% by weight to about 90% by weight of a tackifying resin; andfrom about 0.1 phr to about 0.5 phr of an antioxidizing agent.Type: GrantFiled: October 30, 1987Date of Patent: April 25, 1989Assignee: Shell Oil CompanyInventor: Simon Mostert
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Patent number: 4822839Abstract: A polyunsaturated hydrocarbon polymer-compatible anti-oxidant composition is provided which comprises a mixture of at least one sterically hindered phenolic compound and at least one aryl amine compound in a molar ratio ranging from about 0.1 to about 10.Type: GrantFiled: November 25, 1987Date of Patent: April 18, 1989Assignee: Hercules IncorporatedInventor: Martin J. Paisner
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Patent number: 4808642Abstract: This invention relates to a chlorine-containing resin molding characterized by its stabilization by aminocarboxylic acid and from which molding substantially no metallic ion is detected, and to material for use with the chlorine-containing resin molding consisting of 100 parts by weight of chlorine-containing resin and 0.5-5.0 parts by weight of aminocarbolyxic acid. According to the molding and the material for use therewith, there is no possibility of metallic ion dissolving from the molding in which a metallic stabilizer is conventionally used, with the result that the molding finds wide application in the industrial field related with electric parts including a semiconductor as a main item, medical treatment, chemicals and pharmaceuticals, and food stuffs, all subject to adverse effects by dissolution of metallic ion. Consideration for application of a nonmetallic agent is also given to the use of a coloring agent and a lubricant with respect to the molding and the material for use therewith.Type: GrantFiled: April 25, 1986Date of Patent: February 28, 1989Assignee: Takiron Co., Ltd.Inventors: Hideki Kitada, Masami Takahashi, Toshiyuki Yagi, Masaaki Sukeda, Tadashi Nakayama
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Patent number: 4797440Abstract: A composition comprising a dispersion of a finely divided particulate solid in a thermoplastic polymeric organic medium in the presence of a lubricant and a processing additive in which the processing additive comprises an organic compound containing at least one group of the formula:--O--A--CO--wherein A is a divalent aliphatic radical containing 17 carbon atoms, at least 4 of which are directly between the oxygen atom and the carbonyl group.The composition is suitable for blending a particulate solid into a polymer.Type: GrantFiled: June 25, 1987Date of Patent: January 10, 1989Assignee: Imperial Chemical Industries PLCInventors: John D. Schofield, Roger Slater
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Patent number: 4758614Abstract: Substituted amino carbamate derivatives corresponding to the formula ##STR1## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation, said derivatives being particularly effective as color improvers and process stabilizers in organic materials containing phenolic antioxidants and/or metal salts of fatty acids and/or hindered amine light stabilizers and/or organic phosphorus compounds; and certain of said derivatives as new compounds.Type: GrantFiled: April 25, 1986Date of Patent: July 19, 1988Assignee: Ciba-Geigy CorporationInventors: Stephen D. Pastor, Edward T. Hessell, Ramanathan Ravichandran
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Patent number: 4748074Abstract: Non linear optical compositions contain a vinylidene fluoride copolymer and an additive having molecular optoelelectronic activity, e.g. methyl-N-(2,4-dinitrophenyl)-alaninate. Poled films derived from the composite display optoelectronic activity. There is a marked contrast with known techniques in which single crystals are utilized. The compositions are used to make laminates which display good waveguide properties.Type: GrantFiled: December 16, 1985Date of Patent: May 31, 1988Assignee: British Telecommunications Public Limited CompanyInventors: Philippos Pantelis, Graham J. Davies