Carbocyclic Ring Wherein At Least Two Of The Nuclear Carbons Thereof Are Double Bonded Directly To Oxygens Atom So As To Form Two Or More C=o Groups Therewith, E.g., Quinone, Etc. Patents (Class 524/358)
-
Patent number: 5298543Abstract: Curable compositions from storage stable thermosettable ethylenically unsaturated resins containing at least one 1,4-naphthoquinone substituted on the 2 or 3 or both the 2 and 3 positions. The reactivity of these storage stable resins with curing agents is not unacceptably reduced by the presence of the stabilizer. The curable compositions are useful in the preparation of laminates or composites and in filament winding pultrusion, braiding and resin transfer molding applications.Type: GrantFiled: July 28, 1993Date of Patent: March 29, 1994Assignee: The Dow Chemical CompanyInventor: Paul L. Wykowski
-
Patent number: 5286772Abstract: A polyolefin composition is disclosed comprising polyolefin with a synergistic antioxidant composition of a phenolic oxidation inhibitor and synergist capable of reacting with the phenoxyl radicals to form a phenolic group and regenerate the phenolic oxidation inhibitor. In a preferred embodiment of the invention, the synergist also acts as a metal-complexing agent capable of complexing with trace transition-metal-ions contaminants in the polyolefin.Type: GrantFiled: November 27, 1992Date of Patent: February 15, 1994Assignee: The University of UtahInventor: Natalya Rapoport
-
Patent number: 5274019Abstract: A polymer composition comprises a minor amount of a pro-degradant selected from essentially carboxycylic .beta.-diketones and metal complexes thereof, e.g. 2,2'-methylene(1,3-cyclohexanedione) or its Mn(II) or Zn complex. A film of the composition may be used for the protection of seeds or seedlings at an agricultural or horticultural locus.Type: GrantFiled: April 19, 1993Date of Patent: December 28, 1993Assignee: Robinson Brothers LimitedInventors: William R. Poyner, Khirud B. Chakraborty
-
Patent number: 5272197Abstract: Thermosettable ethylenically unsaturated resins are rendered storage stable by the addition of at least one 1,4-naphthoquinone substituted on the 2 or 3 or both the 2 and 3 positions. The reactivity of these storage stable resins with curing agents is not unacceptably reduced by the presence of the stabilizer.Type: GrantFiled: April 1, 1992Date of Patent: December 21, 1993Assignee: The Dow Chemical CompanyInventor: Paul L. Wykowski
-
Patent number: 5194476Abstract: Polymeric compositions characterized by their excellent thermal stability containing a polyphenylene ether or one of its blends with at least one (co)polymer of styrene and at least one compound belonging to the group of linear and/or cyclic beta diketones.Beta-diketones are capable of giving polyphenylene ether and/or its blends with styrenic polymers a long-lasting thermal stability in the molten state and of guaranteeing sufficient fluidity to ensure better processability compared to the same polymers in the known art.Type: GrantFiled: October 8, 1991Date of Patent: March 16, 1993Assignee: ECP Enichem Polimeri s.r.l.Inventors: Andrea Casarini, Giorgio della Fortuna, Aurelio De Chirico
-
Patent number: 5175201Abstract: Disclosed are novel nitrogen containing heterocyclic compounds and novel vinyl terminated polyurethane/polyamide polymers together with the use of both of these compounds in a novel adhesive and coating composition. The nitrogen containing heterocyclic compounds of the invention contain two vinyl-terminated substituents and at least one carbamylmethyl substituent and have a nucleus selected from melamine, oligomers of melamine, benzoguanamine, and oligomers of benzoguanamine, glycoluril and oligomers of glycoluril. The vinyl terminated polyurethane compounds of the invention have a molecular weight of from about 3000 to about 80000, and contain at least two vinyl end groups.Type: GrantFiled: October 31, 1988Date of Patent: December 29, 1992Assignee: American Cyanamid CompanyInventors: Peter S. Forgione, Yuhshi Luh, Balwant Singh, William A. Henderson, Jr.
-
Patent number: 5130356Abstract: A novel, optically transparent, isotropic molding for optical purposes which is free of orientation birefringence consists of a mixture of polyphenylene ethers, vinylaromatic polymers and additives. The novel molding contains traces of novel diphenoquinone and/or diphenohydroquinone derivatives as additives and may also contain novel ammonium salts of sulfuric acid half esters of diphenohydroquinones as further additives. The novel molding has a yellowness index (YI) of from 40 to 90. It can be produced in a simple manner by injection molding processes. The novel molding in the form of a circular disk having a central hole is very useful as a dimensionally stable substrate of audio compact disks (CD), audiovisual compact disks (CDV), laser-optical computer disks and magneto-optical computer disks, and data media of this type which contain these novel dimensionally stable substrates have particularly advantageous performance characteristics.Type: GrantFiled: February 1, 1990Date of Patent: July 14, 1992Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Feuerherd, Carola Hedtmann-Rein, Ludger Leber
-
Patent number: 5109055Abstract: A rubber composition comprising a base rubber, carbon black and a dinitrodiamine compound represented by the formula [I], ##STR1## wherein X is a divalent aliphatic, alicyclic or aromatic group which may contain halogen or oxygen in the group, R.sup.1 is hydrogen or an aliphatic, alicyclic or aromatic group, provided that two nitrogen atoms linking through X may further link through R.sup.1 when both X and R.sup.1 are the aliphatic groups, and R.sup.2 and R.sup.3 independently of one another are each hydrogen or an alkyl of 1 to 12 carbon atoms, provided that R.sup.2 and R.sup.3 may conjointly form a ring,is improved in its scorching without deterioration in its dynamic properties by incorporating thereto the following components (A) or (B):(A) N-(cyclohexylthio)phthalimide and a bismaleimide compound, or(B) 2,3,5,6-tetrachloro-1,4-benzoquinone.Type: GrantFiled: July 5, 1990Date of Patent: April 28, 1992Assignee: Sumitomo Chemical Company, LimitedInventors: Hideo Nagasaki, Naoki Inui, Shinichi Yachigo
-
Patent number: 5084498Abstract: A copolymer of an unsaturated fluoro compound with a vinyl ether and, optionally, with at least one additional ethylenically unsaturated monomer can be stabilized against gelling by the addition, either to the copolymerization reaction or to the copolymer in solution or in aqueous dispersion, of a 2,2-unsubstituted alicyclic 1,3-diketone in the presence of the enolate ion of said ketone, which enolate may be formed in situ. Solutions and dispersions of such copolymers are very useful in hard, weather-resistant finishes, for example, those used for bridge ironwork and architectural maintenance and in automotive applications.Type: GrantFiled: October 17, 1990Date of Patent: January 28, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Norman M. van Gulick
-
Patent number: 4988754Abstract: Linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are stabilized against degradation caused by exposure to elevated temperatures by the inclusion therein of an alkylated benzoquinone.Type: GrantFiled: June 27, 1989Date of Patent: January 29, 1991Assignee: Shell Oil CompanyInventor: Robert Q. Kluttz
-
Patent number: 4970272Abstract: Polyphenylene ether-polyamide compositions having improved resistance to water absorption and swell are provided by incorporating therein a phenolic compound.Type: GrantFiled: January 27, 1989Date of Patent: November 13, 1990Assignee: General Electric CompanyInventor: Robert R. Gallucci
-
Patent number: 4842781Abstract: Disclosed is a colored polarizing film having excellent durability which comprises (a) an organic polymer film or sheet and (b) at least one dichroic dye having an azo, anthraquinone, thioindigo, perylene or phthalone structure containing no water-soluble group. Also disclosed is a method of making a colored polarizing film using an organic polymer film or sheet formed of a polyamide or polyester resin, which comprises the steps of (a) blending (preferably, dry blending) a dichroic dye with the resinous polymer in advance, (b) melting the resulting blend and forming it into a film, and then (c) stretching the film in at least one direction.Type: GrantFiled: January 11, 1988Date of Patent: June 27, 1989Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Tsutomu Nishizawa, Yasuyuki Yamada, Junichi Fujio, Shin Hosonuma
-
Patent number: 4788240Abstract: Polyorganosiloxane compositions comprising:(A) a polyorganosiloxane having two or more of the following unit, in the molecule, represented by the formula: ##EQU1## wherein, R.sup.1 represents an alkenyl radical; R.sup.2 represents a substituted or unsubstituted monovalent hydrocarbon radical having no unsaturated aliphatic bond; a is an integer of 1 of 2; b is an integer of 0 to 2; and a+b is an integer of 1 to 3;(B) a polyorganohydrogensiloxane, having units represented by the formula: ##EQU2## wherein, R.sup.3 represents a substituted or unsubstituted monovalent hydrocarbon radical; c is an integer of 0 to 2; d is an integer of 1 or 2; and c+d is an integer of 1 to 3,and having at least three hydrogen atoms bonded to silicon atoms in a molecule, in an amount such that the number of the hydrogen atoms bonded to silicon atoms may be 0.5 to 4.0 per R.sup.Type: GrantFiled: May 28, 1986Date of Patent: November 29, 1988Assignee: Toshiba Silicone Co., Ltd.Inventor: Tetsuo Fujimoto
-
Patent number: 4759801Abstract: A method for preparing a pigment preparation comprising kneading a pigment presscake (comprising a pigment and water and/or one or more organic liquids) at a temperature in the range 80.degree. to 200.degree. C. under vacuum together with a thermoplastic material, thereby at the same time removing the water and/or any organic liquids present. These preparations are useful for coloring polymeric material.Type: GrantFiled: July 10, 1986Date of Patent: July 26, 1988Assignee: Sandoz Ltd.Inventors: Jurgen Goldmann, Bansi L. Kaul
-
Patent number: 4743642Abstract: A rubber-reinforced polymeric composition is disclosed having enhanced color stability upon exposure to ultraviolet (UV) light comprising a color balancer in an amount effective to reduce the overall color shift of the plastic due to exposure to UV light.Type: GrantFiled: September 8, 1986Date of Patent: May 10, 1988Assignee: The Dow Chemical CompanyInventors: James A. Yanacek, Robert J. Donald, Christopher S. Murphy
-
Patent number: 4659763Abstract: There are provided novel modified polyphenylene ether-polyamide compositions comprising polyphenylene ether, polyamide and a quinone compound for improved strength.Type: GrantFiled: January 6, 1986Date of Patent: April 21, 1987Assignee: General Electric CompanyInventors: Robert R. Gallucci, Roger W. Avakian
-
Patent number: 4522963Abstract: The invention is a process for monitored cross-linking of unsaturated polyester resins in the presence of a metal-ion-containing accelerator and an organic peroxide initiator, complemented by promotor in some cases. According to this process, the cross-linking is carried out in the presence of one of the compounds from the group consisting of alizarin, sodium alizarinesulfonate, 3-nitroalizarin, chinizarine, or purpurin, where the substituents are H atoms or OH, NO.sub.2, SO.sub.3 H, or SO.sub.3 Na groups with the restriction that at least one of them should be other than H, which is present in a ratio of from 0.005 to 0.5, preferably 0.01 to 0.1 percent (mass/mass), compared to the mass of the polyester resin, and cross-linking is trailed by the color change in the system. The invention permits all of the chemical-technological processes involved in the processing of unsaturated polyester resins to be monitored visually.Type: GrantFiled: October 13, 1983Date of Patent: June 11, 1985Assignee: Muanyagipari Kutato IntezetInventors: Geza Kecskemethy, Istvan Kovacsay, Laszlo Magdanyi
-
Patent number: 4513110Abstract: Treatment of diene rubber with a diketo compound, in which the keto groups are part of a six-carbon hydrocarbon ring containing carbon-to-carbon unsaturation, or a tautomer of the compound, is performed at temperatures above 130.degree. C. Rubber compositions treated in this manner exhibit increased green strength, decreased plasticity, and, when vulcanized, decreased hysteresis.Type: GrantFiled: June 9, 1983Date of Patent: April 23, 1985Assignee: Monsanto CompanyInventor: Charles P. Rader
-
Patent number: 4499008Abstract: A method of making an electrically conducting polymer is disclosed which includes poly(N-alkyl 3',3 carbazolyl) at least a portion of which is doped with a compatible charge transfer acceptor to provide p-type electrical conductivity, and in which the alkyl group is one selected from the group consisting of ethyl and methyl or a combination thereof.Type: GrantFiled: December 9, 1983Date of Patent: February 12, 1985Assignee: Honeywell Inc.Inventors: Stephen T. Wellinghoff, Samson A. Jenekhe, Thomas J. Kedrowski
-
Patent number: 4496694Abstract: Storage stable curing agents for acrylate adhesives, which curing agents are miscible with an acrylate resin adhesive, are produced by the mixing together of a polymerizable monomer, a thermoplast or elastomer soluble therein, and a liquid aldehyde/amine condensation product, and subsequent homogenisation of the mixture at elevated temperature. The curing agents, which optionally contain also stabilizers and curing accelerators, can be mixed with acrylate resin adhesives in any chosen quantity ratio between 2:1 and 1:2.Type: GrantFiled: April 18, 1983Date of Patent: January 29, 1985Assignee: Ciba-Geigy CorporationInventors: Imre Forgo, Jacques Francois
-
Patent number: 4483951Abstract: This disclosure relates to novel adhesive compositions and composite structures utilizing the same, wherein said adhesive compositions contain an elastomer, a chemically compatible ethylenically unsaturated monomer, a tackifier, an adhesion promoter, and optionally, pigments, fillers, thickeners and flow control agents which are converted from the liquid to the solid state by exposure to high energy ionizing radiation such as electron beam. A particularly useful application for such adhesive compositions comprises the assembly of certain composite structures or laminates consisting of, for example, a fiber flocked rubber sheet and a metal base with the adhesive fulfilling the multiple functions of adhering the flocked fiber to the rubber sheet as well as adhering the rubber sheet to the metal base.Type: GrantFiled: December 2, 1981Date of Patent: November 20, 1984Assignee: The Standard Products CompanyInventor: Walter Brenner
-
Patent number: 4477608Abstract: Compositions containing high-molecular, organic material which can be processed into moulded products, 0.001 to 3.0% by weight of graphite, relative to the high-molecular, organic material, and one or more pigments or polymer-soluble dyes, are suitable for producing moulded products.Type: GrantFiled: August 8, 1983Date of Patent: October 16, 1984Assignee: Ciba-Geigy CorporationInventors: Fridolin Babler, Adolf Weissmuller
-
Patent number: 4476255Abstract: A photoreactive plastic composition degradable by ultraviolet radiation, said composition consisting essentially of a photodegradable polymer having uniformly dispersed therein about 0.01-10% by weight of at least one photosensitizer. There is also provided a process for the preparation of the photoreactive plastic composition. The photoreactive plastic compositions are useful for making plastic articles, particularly plastic packaging materials.Type: GrantFiled: November 1, 1971Date of Patent: October 9, 1984Assignee: Owens-Illinois, Inc.Inventors: William J. Bailey, Lynn J. Taylor
-
Polyamide acid composition for preparing polyimide and process for preparing polyimide from the same
Patent number: 4454276Abstract: A polyamide acid composition for preparing a polyimide which can extend the pot life of the composition comprising a solution of a polyamide acid in an organic solvent, the polyamide acid being a precursor of the polyimide, a dehydrating agent, a catalyst and a pot life extending agent which can lower a rate of conversion of the polyamide acid to the polyimide, and the process for preparing the polyimide from said polyamide acid composition. According to the present invention the pot life can be extremely extended to give the composition an enough flowability for a long time without reducing the excellent properties such as a heat resistance and an electric insulation of the obtained polyimide.Type: GrantFiled: September 29, 1982Date of Patent: June 12, 1984Assignee: Kanegafuchi Chkagaku Kogyo Kabushiki KaishaInventors: Junji Uda, Tsuneo Yamamoto, Takumi Kosugi -
Patent number: 4452955Abstract: Adhesive compositions are described which consist of an adhesive base as a first part and an initiator portion as a second part, said first part consisting essentially of (a) 100 parts by weight of a polymerizable monomer having at least one .alpha.,.beta.-unsaturated carboxyl functionality; (b) as an accelerator, about 0.05 to 20 parts by weight of a compound selected from the group consisting of organic sulfimides and perfluoroalkylsulfonanilides; and (c) an inhibitor of free-radical polymerization; and the second part comprising a condensation reaction product of an aldehyde and a primary or secondary amine. These compositions may be formulated as adhesives which, for example, exhibit pressure-sensitive properties, which are particularly suitable in hot-melt applications, or which are particularly suitable as structural adhesives. Bonding methods are also described herein.Type: GrantFiled: September 16, 1981Date of Patent: June 5, 1984Assignee: Minnesota Mining & Manufacturing CompanyInventor: Charles W. Boeder
-
Patent number: 4452725Abstract: An electrically conducting polymer is disclosed which includes poly(N-alkyl 3',3 carbazolyl) at least a portion of which is doped with a compatible charge transfer acceptor to provide p-type electrical conductivity, and in which the alkyl group is one selected from the group consisting of ethyl and methyl or a combination thereof.Type: GrantFiled: September 21, 1982Date of Patent: June 5, 1984Assignee: Honeywell Inc.Inventors: Stephen T. Wellinghoff, Samson A. Jenekhe, Thomas J. Kedrowski
-
Patent number: 4436852Abstract: A process for coloring linear polyesters in the melt in navy blue and dark blue shades, which process comprises using, as colorant, a mixture consisting of 0.2 to 1% by weight of perylenetetracarboxylic acid bis-methylimide, based on the amount of polyester, and a blue polymer-soluble colorant.Type: GrantFiled: November 2, 1982Date of Patent: March 13, 1984Assignee: Ciba-Geigy CorporationInventor: Fridolin Babler
-
Patent number: 4427816Abstract: Stabilizer compositions for halogen-containing polymers are provided composed of a .beta.-diketone as well as metal and organotin enolate salts thereof; and a hydrotalcite having the general formula:Mg.sub.1-x Al.sub.x (OH).sub.2 A.sub.x/2.mH.sub.2 Owhereinx is a number from 0 to 0.5;A is CO.sub.3.sup.= or SO.sub.4.sup.=, andm is a number representing the number of H.sub.2 O in the molecule.The stabilizer compositions are effective in enhancing the resistance to deterioration by heat and light of halogen-containing polymers and especially polyvinyl halide resins. The .beta.-diketone and hydrotalcite in these compositions exhibit a synergistic stabilizing effectiveness superior to either alone in like amount.Type: GrantFiled: January 29, 1982Date of Patent: January 24, 1984Assignee: Adeka Argus Chemical Co., Ltd.Inventors: Toshihiro Aoki, Yoshio Iida
-
Patent number: 4407994Abstract: Disclosed is a method for sizing paper wherein the sizing agent employed is a hydrophobic cellulose reactive sizing agent such as a ketene dimer sizing agent. There is employed in combination with the sizing agent a novel sizing accelerator. Disclosed also is a novel sizing composition comprised of the sizing agent and the accelerator, the accelerator being a water-soluble nitrogen-containing reaction product of (1) a water-soluble polyaminopolyamide, such as that derived by reaction of adipic acid and diethylene-triamine; (2) an epihalohydrin, such as epichlorohydrin; and (3) a composition comprising, by weight, from about 20% to about 65% bis(hexamethylene)triamine, said composition being the residue obtained after recovery of hexamethylenediamine from its manufacture by hydrogenation of adiponitrile.Type: GrantFiled: July 2, 1981Date of Patent: October 4, 1983Assignee: Hercules IncorporatedInventors: Ralph A. Bankert, David H. Dumas
-
Patent number: 4391935Abstract: An improved flame retardant polycarbonate composition of an aromatic carbonate polymer in admixture with an organic alkali metal salt or an organic alkaline earth metal salt or mixtures thereof, which composition has in admixture therewith a fluorinated polyolefin.Type: GrantFiled: May 4, 1981Date of Patent: July 5, 1983Assignee: General Electric CompanyInventors: Charles A. Bialous, John B. Luce, Victor Mark
-
Patent number: 4377650Abstract: Pigment is finely dispersed in hydrolyzed ethylene-vinyl acetate copolymer by subjecting the copolymer to which pigment has previously been added by simple, non-intensive mixing to solution hydrolysis and/or by adding pigment to the solution hydrolysis medium prior to or during hydrolysis of the copolymer therein.Type: GrantFiled: October 31, 1980Date of Patent: March 22, 1983Assignee: National Distillers & Chemical Corp.Inventor: Joseph Fischer
-
Patent number: 4361607Abstract: A conventional stainless steel beverage syrup container having color stabilized cured rubber molded skirts adhesively bonded to stainless steel domes weld capping said container.Type: GrantFiled: April 17, 1980Date of Patent: November 30, 1982Assignee: Spartanburg Steel Products, Inc.Inventors: James A. Davis, Robert C. Koch
-
Patent number: 4348239Abstract: A process for the mass coloration of organic material of high molecular weight, which comprises the use of a mixture of anthraquinone compounds of the formula: ##STR1## wherein n is 1 or 2, R, if n is 1, represents a substituted or unsubstituted anthraquinone radical, and, if n is 2, R represents a radical of the formula: ##STR2## wherein R.sub.1 represents hydrogen, alkyl of 1 to 4 carbon atoms, phenyl or methylmercapto as colorant, having good thermostability, solubility when incorporated in the polymer melt, and resistance to the staining of other material during thermofixation.Type: GrantFiled: July 31, 1980Date of Patent: September 7, 1982Assignee: Ciba-Geigy CorporationInventor: Arnold Wick