Abstract: A curable polyester composition having improved properties is described, and the curable polyester composition comprises:(A) at least one unsaturated polyester resin;(B) at least one hydrocarbon monomer copolymerizable with the polyester; and(C) at least one aryl sulfonamide-aldehyde resin.When the curable polyester composition is to be used as a plastic body filler, the curable polyester composition generally will be modified to include (D) at least one inorganic filler which may comprise a mixture of an inorganic powder and inorganic hollow microspheres.The curable polyester resin compositions of the invention are useful as plastic body fillers for repairing metal surfaces, and the curable compositions have been found to be particularly useful and advantageous as plastic body fillers for galvanized steel.
Abstract: This invention relates to an ultraviolet-radiation stabilizer flame retarding system containing an N,N'-ethylene-bis(tetrabromophthalimide) or an N,N'-bis(tetrabromophthalimide) predominate product, a hindered-amine light stabilizer, a 2-(2'-hydroxyphenyl)benzotriazole, a titanate, and, optionally, Mg(OH).sub.2 and/or ZnO.
Abstract: This invention relates to synthetic resin compositions comprising a mixed product of (a) a compound having at least one piperidyl group, (b) perchloric acid and (c) optionally an inorganic substance other than perchloric acid in an amount of 0.01-10 parts by weight based on a synthetic resin, for example, a halogen-containing resin.The compositions of this invention exhibit very excellent light resistance and heat resistance.
Abstract: A polyacetylene film having a high electroconductivity is prepared by (a) heating a Ziegler-Natta catalyst at a temperature not lower than 150.degree. C. in an organic solvent and then, cooling the catalyst-solvent mixture, (b) removing coarse catalyst particles having a diameter of larger than 1 .mu.m from the catalyst-solvent mixture by filtration to form a catalyst dispersion for polymerization, (c) introducing acetylene into the catalyst dispersion to effect polymerization of acetylene, and (d) drawing the formed polymer and treating the drawn polymer with a dopant.
Type:
Grant
Filed:
September 29, 1988
Date of Patent:
April 16, 1991
Assignee:
Director-General of Agency of Industrial Science and Technology
Abstract: The invention relates to a two phase cement mixture which is particularly suitable for orthopaedic use, in which the solid phase comprises a polymer, polymetyl methacrylate, and a catalyst, benzoyl peroxide, while the liquid phase comprises a monomer, monomethyl methacrylate, an accelerator, N-N-dimethyl-p-toluidine and hydroquinone. The said polymetyl methacrylate is in powder form with particles of a spherical shape which are of a suitable particle size. Fluoride in form of salt can be added to the said solid phase, realizing fluoride ions, making them available to the part of the bone with which the said mixture is in contact when is used to attach a prothesis to a bone.
Type:
Grant
Filed:
May 16, 1989
Date of Patent:
April 2, 1991
Assignee:
Tecres Spa
Inventors:
Giovanni Faccioli, Basilio M. De Bastiani, Bruno Magnan, Renzo Soffiatti
Abstract: There is discloses a resin composition which comprises a polyphenylene ether resin, a polyamide resin, an alkenylaromatic compound-conjugated diene copolymer; a compound having unsaturated group and polar group in combination within the same molecule; and an inorganic filler, and the polyphenylene ether resin being dispersed into the polyamide resin which forms continuous phase, and the inorganic filler being dispersed into dispersed phases of the polyphenylene ether resin.
Abstract: Novel hair cosmetic compositions comprise 0.1 to 20 wt % of an amphoteric polymer which is soluble in an aqueous 10 wt % sodium chloride solution and insoluble in water at a concentration of 0.1 wt % at 20.degree. C., and 0.1 to 30 wt % of a water-soluble inorganic salt.The hair cosmetic compositions have good properties in terms of hair style formation and retention, and are free from objectionable feel such as stickiness. Thus, the compositions will be expected to have wide utility irrespective of the sexes and ages.
Abstract: This invention provides novel liquid organosiloxane/graft-oxyalkylene copolymers that cure to yield solid materials. The copolymers can be cured by heating them in the presence of suitable curing agents, by exposure to ultraviolet radiation in the presence of a photoinitiator, or by exposure to an electron beam. The copolymers can be combined with solubilized, ionizable lithium salts to yield curable electroconductive compositions suitable for use as electrolytes in storage batteries.
Abstract: Oxidation of particles of rare earth magnetic materials is greatly reduced when a passivating agent such as an oxidation resistant composition or corrosion inhibitor or combinations thereof, is coated thereon. The oxidation resistant composition is a binary or a ternary composition made from (a) at least one amino containing silane compound such as an aminosilane or a polyaminosilane, or (b) at least one epoxy resin, or (c) an epoxy silane compound, or all three such compounds. The oxidation resistant composition, the corrosion inhibitor, or combinations thereof, passivate the surface of the magnetic particles and generally form a highly concentrated coating on the surface thereof. Antidegradants are optionally utilized to improve the performance of the rare earth magnet composition with regard to improved oxidation resistant properties and generally include organic phosphorous compounds and/or alcohols.
Type:
Grant
Filed:
September 19, 1989
Date of Patent:
January 29, 1991
Assignee:
The B. F. Goodrich Company
Inventors:
E. Douglas Dickens, Jr., Anthony M. Mazany
Abstract: Melt processable halogen-free low smoke wire coating compositions are provided which utilize a polyimide-siloxane, an effective amount of a plasticizer and hydrated zinc borate. The melt processable halogen-free low smoke blends can satisfy the low smoke requirements for plenum wire as shown by an Ohio State University test value of total smoke after 5 minutes of less than 100.
Abstract: An electrically conductive coating composition is useful for a primer or a surfacer paint for a plastic article, in particular one having a small polarity on the surface, and comprises (A) a polyurethane, (B) a spiro-ortho-ester resin of the ring-opening expansive property, (C) a cellulose derivative, (D) a hydroxy-containing surfactant and (E) an electrically conductive material.
Type:
Grant
Filed:
August 28, 1989
Date of Patent:
November 20, 1990
Assignee:
Polyplastics Co., Ltd.
Inventors:
Katsuhiko Takahashi, Yoshiharu Suzuki, Haruyasu Ito
Abstract: An improved coating is provided for fiberglass insulation articles which is coated onto the fiberglass insulation, thereby providing the fiberglass insulation with good mechanical properties and other desirable properties such as low emission of volatiles, fire retardency, low potential smoke generation and low air friction.
Abstract: Thermoplastic molding compositions are provided which comprise a polyester resin alone or in combination with a poly(etherester) elastomer, a poly(etherimide ester) elastomer, or a mixture of the foregoing modified with a multi-stage polyorganosiloxane/polyvinyl-based graft polymer which exhibit materially enhanced impact strength, particularly at low temperatures, while maintaining other desirable properties without showing any tendency to delaminate. Particularly noteworthy are reductions in surface gloss and the substantially complete elimination of mottling.
Abstract: The invention relates to an electrically conductive, polymer based material with electrical resistivity having a positive temperature coefficient. The material comprises a matrix of thermosetting polymer having conductive particles in the form of fibers distributed through the polymer. The polymer can be an epoxy resin, polyimide, unsaturated polyester, silicone, polyurethane or phenolic resin, and the fibers can be carbon fibers, carbon fibers coated with metal or metal alloy, graphite fibers, graphite fibers coated with metal or metal alloy, graphite intercalation compound fibers, metal fibers, ceramic fibers, or ceramic fibers coated with a metal or metal alloy.
Type:
Grant
Filed:
April 4, 1988
Date of Patent:
October 30, 1990
Assignee:
Le Carbone-Lorraine
Inventors:
Francois Carmona, Jacques Maire, Helene Septier, Roland Canet, Pierre Delhaes
Abstract: Filler blends of electroconductive particles with electrically non-conductive particles are provided which are useful in making electromagnetic shielding resins for encapsulating electronic devices.
Abstract: Processable electrically conductive latex polymer compositions including colloidal particles of an oxidized, polymerized amino-substituted aromatic monomer, a stabilizing effective amount of a random copolymer containing amino-benzene type moieties as side chain constituents, and dopant anions, and a method of preparing such polymer compositions are provided.
Type:
Grant
Filed:
February 3, 1989
Date of Patent:
September 25, 1990
Assignee:
The United States of America as represented by the United States Department of Energy
Abstract: A conductive plastic molding obtained by melt molding an ethylene copolymer comprising from 40 to 90% by weight of an ethylene unit, from 10 to 60% by weight of at least one dialkylaminoalkylacrylamide comonomer unit represented by formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 5, and up to 20% by weight of one or more ethylenically unsaturated comonomer units and having a number average molecular weight of from 5,000 to 50,000 and impregnating at least 10 parts by weight of an aqueous solution of at least one of an organic acid, an inorganic acid, and an inorganic metal salt into 100 parts by weight of the resulting melt molded. The molding exhibits excellent conductivity and can be obtained easily and at low cost without any limitation on shape.
Abstract: An aqueous based electrically conductive paint having substantially enhanced electrical properties employing a nickel pigment and a surfactant having substantial unsaturation characteristics. Paint is held at 50.degree. C. or greater for at least one hour requires no aging before use. The paint finds particular application in providing EMI and RFI shielding for electrical components when applied to cabinetry housing such components.
Abstract: An additive combination for hydraulic cement compositions is provided which advantageously provides corrosion inhibition and set acceleration, in combination with a high level of fluidity and retention of fluidity over a desired period of time. The cement additive combination comprises an alkali or alkaline earth metal nitrite and a graft copolymer plasticizer comprising a polyether backbone and side chain polymers formed by polymerization of ethylenically unsaturated monomers.Fluid hydraulic cement compositions are further provided comprising these additive combinations.
Type:
Grant
Filed:
September 7, 1989
Date of Patent:
August 7, 1990
Assignee:
W.R. Grace & Co.-Conn.
Inventors:
Ahmad Arfaei, Neal S. Berke, Michael P. Dallaire, Maria Hicks
Abstract: The present invention relates to an adhesive composition comprising 100 parts by weight of a polyester-polyurethane having an isocyanate group (--NCO) and 0.002-20 parts by weight of a halogenating agent, suitably used for the adhesion of polyolefin materials which are difficult to glue, such as car molding and base materials for electrostatic flocked products, the adhesion of trimming, the adhesion of rubber products and others.
Abstract: Thermoplastic resin compositions are blended with a novel silicone-based flame retardant which also imparts good impact resistance and low temperature ductility on the thermoplastic resins. Polyorganosiloxanes are grafted with vinyl-based polymers, such as bromostyrenes, capable of exhibiting flame retarding properties and then blended with normally flammable thermoplastic resins.
Abstract: The invention relates to the use of lithium ion-generating alkalizing agents in resole binder compositions useful for bonding aggregate materials to form refractory articles. Use of lithium-ion generating alkalizing agents produce resole resin binder compositions which, when cured by an ester functional curing agent, exhibit tensile and compression strengths superior to strengths obtained from compositions using sodium ion-generating or potassium ion-generating alkalizing agents.
Abstract: A release sheet, comprising poly-4-methylpentene-1 film containing a copper salt of an alkanoic acid and at least one of an alkali metal halide and an alkaline earth metal halide, is disclosed. Such film is useful as a release sheet in the manufacture of printed circuit boards.
Abstract: Polyesters, especially poly(ethylene terephthalate) and poly(butylene terephthalate), having a substantial proportion of free carboxylic acid groups are caused to react with polyepoxy compounds, especially poly(O- or N-epoxyalkyl-substituted) cyclic amides, imides and amidates and preferably triglycidyl isocyanurate, in the presence of various amines or salts as catalysts. The preferred catalysts are fatty acid salts such as sodium sterate. The products have very high melt viscosities and are useful in such operations as blow molding.
Type:
Grant
Filed:
March 13, 1989
Date of Patent:
June 12, 1990
Assignee:
General Electric Company
Inventors:
Linda L. McCracken, Kelvin T. Okamoto, Choong Y. Han, Sterling B. Brown, Michael G. Minnick
Abstract: A cementing composition useful in cementing oil, gas and water wells, comprising water, hydraulic cement and an effective amount of water soluble fluid loss additive comprised of a copolymer of acrylamide/vinyl imidazole and derivatives thereof in a weight percent ratio of from about 95:5 to 5:95, said copolymer having a molecular weight range of from about 100,000 to 3,000,000. The composition can also optionally include a dispersant such as sodium or potassium salts or a sulfonated naphthalene formaldehyde condensate.
Type:
Grant
Filed:
August 7, 1989
Date of Patent:
June 12, 1990
Assignee:
BASF Corporation
Inventors:
Clare H. Kucera, Stefano C. Crema, Michael D. Roznowski, Gerd Konrad, Heinrich Hartman
Abstract: Polymers which are soluble in water and are electrically conductive. The monomer repeat unit is a thiophene or pyrrole molecule having an alkyl group substituted for the hydrogen atom located in the beta position of the thiophene or pyrrole ring and having a surfactant molecule at the end of the alkyl chain. Polymers of this class having 8 or more carbon atoms in the alkyl chain exhibit liquid crystalline behavior, resulting in high electrical anisotropy. The monomer-to-monomer bonds are located between the carbon atoms which are adjacent to the sulfur or nitrogen atoms. The number of carbon atoms in the alkyl group may vary from 1 to 20 carbon atoms. The surfactant molecule consists of a sulfonate group, or a sulfate group, or a carboxylate group, and hydrogen or an alkali metal. Negative ions from a supporting electrolyte which may be used in the electrochemical synthesis of a polymer may be incorporated into the polymer during the synthesis and serve as a dopant to increase the conductivity.
Type:
Grant
Filed:
February 12, 1988
Date of Patent:
May 29, 1990
Assignee:
The United States of America as represented by the Department of Energy
Abstract: The invention relates to the stabilization of alkaline solutions of peroxide bleaching compounds using, as stabilizing agent, a water-soluble poly-.alpha.-hydroxyacrylic acid salt which in the sodium salt form has an average molecular weight Mw from 2000 to 10,000 and to the preparation of such a salt.
Abstract: The subject of the invention is mainly an electrically conductive polymer containing repeated units derived from 3-alkythiophenes in which the alkyl substituent contains from six to nine carbon atoms.The invention also relates to a process for manufacturing these polymers and to electroconductive devices containing them.
Type:
Grant
Filed:
April 1, 1987
Date of Patent:
March 20, 1990
Assignee:
Solvay & Cie (societe Anonyme)
Inventors:
Marc Lemaire, Jean Roncali, Robert Garreau, Francis Garnier, Etienne Hannecart
Abstract: A thiophene derivative polymer comprising repeating units of the formula: ##STR1## (wherein R stands for one member selected from the group consisting of ##STR2## and a polymer composition having the polymer doped with an anion and consequently possessing a semiconducting characteristic.
Type:
Grant
Filed:
February 6, 1989
Date of Patent:
January 9, 1990
Assignee:
Agency of Industrial Science & Technology, Ministry of International Trade & Industry
Abstract: The preparation of highly densified ceramic bodies by sintering certain curable organopolysiloxanes filled with silicon carbide powders, metal-containing sintering aids, and organopolysiloxane curing agents described. Such highly densified ceramic bodies can be prepared by either a pressure-less or a hot press sintering process. The compositions of this invention can be formed into desired shapes and then sintered to form ceramic, shaped bodies with high densities. One advantage of the present invention is that the green bodies have relative high strengths and thus can be easily handled and, if desired, machined before sintering. The curable organopolysiloxanes useful in this invention must yield a ceramic char which contains free or excess carbon in addition to carbon in the form of silicon carbide upon pyrolysis to elevated temperatures.
Type:
Grant
Filed:
September 26, 1988
Date of Patent:
December 19, 1989
Assignee:
Dow Corning Corporation
Inventors:
William H. Atwell, Gary T. Burns, Chandan K. Saha
Abstract: A composition for receiving and permanently recording impressions including a plastisol, finely ground non-absorbing particulate matter and a small quantity of salt. The particulate matter is limestone and sand.
Abstract: Disclosed herein is a uniaxially or biaxially oriented polyphenylene sulfide film wherein the number of n-order of interference fringes Hn (per mm.sup.2) as measured by a multiple interference method satisfies the following relations (1) and (2) at the same time:30.ltoreq.H.sub.1 .ltoreq.300 (1)10.ltoreq.H.sub.3 .ltoreq.
Abstract: A polymeric decontamination composition comprising a polymeric reaction product resulting from the reaction of a polyvinylbenzyl halide and a monomeric amine admixed with an alkali metal hydroxide solution capable of swelling said polymeric reaction product and the method of making the composition.
Type:
Grant
Filed:
November 18, 1987
Date of Patent:
December 5, 1989
Assignee:
Southwest Research Institute
Inventors:
William A. McMahon, Jr., David A. Trujillo, Robert E. Lyle, Jr.
Abstract: A semiconductor encapsulating material is obtained from a polyimide resin composition comprising (A) a polyaminobismaleimide resin, (B) a silicone monomer and/or oligomer having a hydroxyl or alkoxyl group bonded to a silicon atom and mixtures thereof, and (C) an inorganic filler wherein the weight ratio of polyaminobismaleimide resin (A) to silicone component (B) ranges from 99.5/0.5 to 70/30, and the weight ratio of polyaminobismaleimide resin (A) to inorganic filler (C) ranges from 100/50 to 100/1000.
Abstract: An aqueous suspension comprising 15% or more, by total weight of the suspension, of at least one anionic or nonionic water-soluble polymer dispersed in an aqueous solution of an ammonium salt having a multivalent anion, wherein the weight ratio of the ammonium salt to the water is at least 0.15, a process for preparing the same, and use of the same in a variety of applications, are disclosed.
Abstract: The present invention relates to a binder and a method for making and shaping a green body of ceramic powder and subsequently producing a formed ceramic body. The method of the present invention comprises admixing a ceramic powder with a binder comprising a polyalkylene carbonate to form a ceramic-binder mixture. The binder of the present invention comprises a polyalkylene carbonate, preferably polyethylene carbonate or polypropylene carbonate.
Type:
Grant
Filed:
January 27, 1987
Date of Patent:
November 21, 1989
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Daniel P. Kramer, Joseph G. Santangelo, James J. Weber
Abstract: Polymers which are soluble in water and are electrically conductive. The monomer repeat unit is a thiophene or pyrrole molecule having an alkyl group substituted for the hydrogen atom located in the beta position of the thiophene or pyrrole ring and having a surfactant molecule at the end of the alkyl chain. Polymers of this class having 8 or more carbon atoms in the alkyl chain exhibit liquid crystalline behavior, resulting in high electrical anisotropy. The monomer-to-monomer bonds are located between the carbon atoms which are adjacent to the sulfur or nitrogen atoms. The number of carbon atoms in the alkyl group may vary from 1 to 20 carbon atoms. The surfactant molecule consists of a sulfonate group, or a sulfate group, or a carboxylate group, and hydrogen or an alkali metal. Negative ions from a supporting electrolyte which may be used in the electrochemical synthesis of a polymer may be incorporated into the polymer during the synthesis and serve as a dopant to increase the conductivity.
Type:
Grant
Filed:
April 3, 1989
Date of Patent:
November 14, 1989
Assignee:
The United States of America as represented by the United States Department of Energy
Abstract: A method and composition employing microencapsulated thickeners for providing controlled thickening of thermosetting resins, including sheet molding compositions.
Abstract: An oxidation of rare earth magnetic materials and powders thereof are greatly reduced when coated with a binary or a ternary composition made from (a) at least one amino containing silane compound such as an aminosilane or a polyaminosilane, (b) at least one epoxy resin or (c) an epoxysilane compound. The composition is utilized to coat rare earth magnets or magnet materials or in association with a binder to form a matrix substantially encapsulating the same.
Abstract: Combining a carboxylated acrylic latex binder/surfactant/metal salt premix with a polymer binder/LiCl PEO complex/plasticizer premix produces a storage stable, conductive floor polish composition. Coated on a floor, the composition provides high gloss with a surface resistivity of 10.sup.6 ohm/sq. compared to present commercial antistatic floor polishes with a surface resistivity of 10.sup.9 ohm/sq.
Abstract: Polysulfone and polyethersulfone oligomers are made by the condensation of phenols and halogenated moieties and exhibit improved solvent resistance when capped with crosslinkable end cap imidophenols. Composites made with a blend of the oligomers and corresponding polymers formed from the phenols and halogenated moieties, but without end caps, exhibit superior impact resistance while retaining the desired solvent resistance. Conductive or semiconductive oligomers (or their composites) can be formed by doping suitable oligomers, especially those prepared from Schiff base diols.
Abstract: Oxidation of rare earth magnetic materials and powders thereof are greatly reduced when coated with a binary or a ternary composition made from (a) at least one amino containing silane compound such as an aminosilane or a polyaminosilane, or (b) at least one epoxy resin, or (c) an epoxy silane compound. The composition is utilized to coat rare earth magnet or magnet materials or in association with a binder to form a matrix substantially encapsulating the same.
Abstract: Polymeric latexes with a relatively high T.sub.g such as: styrene, butadiene and acrylic acid; or methyl methacrylate, ethyl acrylate and fumaric acid can be used in whole or in part as a binder to produce strong composite board that will not sag substantially under conditions of high temperature and humidity.
Type:
Grant
Filed:
June 10, 1988
Date of Patent:
September 5, 1989
Assignee:
The Dow Chemical Company
Inventors:
Robert S. Beyersdorf, William H. Keskey
Abstract: A polyvinyl chloride resin composition for powder molding which is excellent in resistance to mold staining and in amine resistance, the improvement wherein the polyvinyl chloride composition contains blended therein 0.1-10 parts by weight of a stabilizer mixture of barium salt of the carboxylic acid and zinc salt of a carboxylic acid, each having a melting point not lower than 250.degree. C., the barium and zinc metallic weight ratio being 1:5 to 5:1, and 0.1-10 parts by weight of a metal perchlorate and/or perchlorate ion type hydrotalcite compound per 100 parts by weight of a polyvinyl chloride resin.
Abstract: An ionic conductive polymeric sticking agent comprising: (a) a reaction product of (i) a polyurethanepolyol prepolymer having an alkylene oxide chain and/or a polyol having an alkylene oxide and (ii) a polyurethane polyisocyanate prepolymer having an alkylene oxide chain, and (b) an ionic compound.
Abstract: An electrically conductive synthetic resin comprises a synthetic resin mixed with at least one kind of niobium and niobic substances by melting in which the synthetic resin contains the latter substances in an amount of 0.5 to 25 percent by weight. If it therefore possible to improve the electrical conductivity of synthetic resins to prevent the occurrence of electrostatic charges thereby realizing a satisfactory shielding effect with respect to electromagnetic waves without damaging the characteristics inherent in the constituent synthetic resin.
Abstract: Nylon 66 polymer is stabilized against heat and light during its preparation by conducting the polymerization in the presence of certain copper complexes, such as cupric amminohydroxide, and KBr and/or KI. Less metallic copper is formed during polymerization than if copper salts (e.g. copper acetate) are used instead of the copper complexes.
Abstract: A road marking composition is applied by applying (1) an aqueous dispersion of a film forming binder and (2) a water soluble salt. The process of the invention provides rapid drying, and the dried composition is not prone to smearing or adhesion of dirt.
Abstract: The invention relates to plastics materials of high electrical conductivity containing TCNQ complexes and stabilized against the emission of HCN and to mouldings, films and coatings of such materials, as well as to the use of the plastics material for the production of antistatic foils and coatings onto substrate.