Carbonyl Of A Carboxylic Acid Or Ester Group Directly Attached To An Aryl Group, E.g., Dipropylene Glycol Dibenzoate, Etc. Patents (Class 524/292)
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Patent number: 5527845Abstract: A hot melt adhesive composition is described which possesses properties which are desirable with respect to the construction of disposable articles. The adhesive composition includes about 10% to about 80%, by weight, of an alkali soluble polymer; about 0 to about 30%, by weight, of a poly (vinyl methyl ether); about 30% to about 70%, by weight, of a tackifying resin; and about 5% to about 30%, by weight, of a suitable plasticizer.Type: GrantFiled: July 15, 1993Date of Patent: June 18, 1996Inventors: Diane Strelow, Mark Alper
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Patent number: 5527847Abstract: Plasticizers are homogeneously incorporated into finely divided solid polyamides by mechanically agitating a mixture of plasticizers and polyamides at temperatures of at least 80.degree. C. while the polyamide remains in the finely divided solid phase.Type: GrantFiled: January 13, 1994Date of Patent: June 18, 1996Assignee: Huels AktiengesellschaftInventors: Salih Mumcu, Weigand Kramer, Wolfgang Kriesten, Hans J. Panoch
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Patent number: 5523344Abstract: Adhesive formulations are blends of aqueous polymer dispersions and a hydrophobic plasticizer. The blended dispersed polymers include at least one hard sulfonated polyester urethane, at least one soft non-sulfonated polyester urethane, and at least one polar non-polyurethane water-based polymer or copolymer. A high molecular weight elastomeric non-sulfonated polyurethane polymer and a crosslinker are optional further components in the blend. The formulations are useful as non-heat activating, one-component adhesives which generate excellent green strength, water and heat resistant bonds.Type: GrantFiled: June 7, 1995Date of Patent: June 4, 1996Assignee: H. B. Fuller Licensing & Financing, Inc.Inventors: Mike Maksymkiw, Gray Haider, Michael Dochniak, Leonard Jannusch, Paul Wade
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Patent number: 5486559Abstract: The invention relates to an optically non-linear active waveguiding material comprising an optically transparent polymer and a donor group and acceptor group-containing triphenylcarbinol as a dopant. Said dopants have a high hyperpolarizability and have a charge-transfer absorption band which is about the same as that of their corresponding compounds having only one donor-.pi.-acceptor unit. The triphenylcarbinols were found to display good solubility in polymers. Nitro-functionalized triphenylcarbinols are preferred because of their charge-transfer absorption band at a low wavelength (.lambda..sub.max at about 290 nm). Aldehyde-functionalized calix(4)arenes were also found to have this low wavelength charge-transfer absorption band (.lambda..sub.max at about 270 nm). Triphenyls comprising stilbene donor-.pi.-acceptor units are preferred because of their high hyperpolarizability.Type: GrantFiled: August 11, 1994Date of Patent: January 23, 1996Assignee: Akzo Nobel NVInventors: Johannes F. J. Engbersen, Erik Kelderman, David N. Reinhoudt, Willem Verboom
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Patent number: 5475056Abstract: The invention relates to plastisols which prevent a yellowing of top coats applied thereon, to a process for their preparation and to their use. The plastisols based on PVC or methacryl contain, in addition to basic adhesion promoters, aldehydes, ketones, their derivatives, oligomers or mixtures of same.Type: GrantFiled: April 13, 1995Date of Patent: December 12, 1995Assignee: Teroson GmbHInventors: Bernhard Koesters, Xaver Muenz, Manfred Asang
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Patent number: 5466496Abstract: Liquid crystal films which are stable to light, moisture and heat, and which have an improved response time and viewing angle are provided by combining ferroelectric liquid crystals and a polymer matrix. The invention further provides for liquid crystal display elements utilizing the liquid crystal films of the invention. Still further, the invention provides methods of producing the liquid crystal films. According to the invention, liquid crystalline polymers having optical anisotropy as a polymer matrix and functional side chain radicals having an asymmetric carbon atom and dipole moment in the polymer matrix are matched with the dipole moment of the ferroelectric crystals.Type: GrantFiled: April 13, 1994Date of Patent: November 14, 1995Assignee: Samsung Electron Devices Co., Ltd.Inventor: Yong W. Jin
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Patent number: 5459184Abstract: Hot melt adhesives of this invention can comprise a water-soluble polyalkylenimine, an hydroxy substituted organic compound, and optimally a plasticizer, a tackifier, and other ingredients. The adhesives are water actuated, and can be water activated, cleaned by aqueous systems, or recycled in aqueous systems.Type: GrantFiled: April 2, 1985Date of Patent: October 17, 1995Assignee: H. B. Fuller CompanyInventors: William L. Bunnelle, Keith C. Knutson, Robert Hume, III
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Patent number: 5442001Abstract: The use of C.sub.1 -C.sub.5 alkyl butyrates, d-limonene, ethylene glycol monobutyl ether and C.sub.5 -C.sub.20 petroleum distillates and normal paraffins in place of methyl chloroform (1,1,1-trichloroethane) in conventional waterborne packaging and converting adhesives provides comparable or better adhesive products with reduced environmental and health related problems.Type: GrantFiled: September 7, 1994Date of Patent: August 15, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventors: M. Erin Jones, Paul P. Puletti
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Patent number: 5418279Abstract: Stereoregular polystyrenes can be combined with a plasticizer to make a non-PVC plastisol with physical properties comparable to PVC-based plastisols.Type: GrantFiled: April 28, 1994Date of Patent: May 23, 1995Assignee: W. R. Grace & Co.-Conn.Inventors: Jie Ren, William P. Roberts, Arthur D. Ketley
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Patent number: 5399605Abstract: There is disclosed a polyester resin composition comprising: (a) 50 to 70 parts by weight of a polyester resin composed mainly of a repeating unit of butylene terephthalate; (b) 30 to 50 parts by weight of a polyester resin composed mainly of a repeating unit of ethylene terephthalate; (c) 0.1 to 10 parts by weight of a polyalkylene glycol derivative having at least one end group of carboxylate and alkyl ether, per 100 parts by the total weight of the polyester resins (a) and (b); and if necessary or required, (d) not more than 120 parts by weight of an inorganic reinforcing agent, per 100 parts by the total weight of the polyester resins (a) and (b).Type: GrantFiled: July 12, 1993Date of Patent: March 21, 1995Assignee: Toyo Boseki Kabushiki KaishaInventors: Nori Yoshihara, Yukio Gotoh
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Patent number: 5387633Abstract: Copolymers of styrene and sodium styrene sulfonate can be combined with a plasticizer to make a non-PVC plastisol sealant for containers.Type: GrantFiled: March 8, 1994Date of Patent: February 7, 1995Assignee: W. R. Grace & Co.-Conn.Inventors: Richard W. Bush, Eugene E. Carney, Shao-Hai Wu, Felek Jachimowicz, Timothy G. Grasel, Tsutomu Takeuchi
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Patent number: 5300237Abstract: The amino groups of an organopolysiloxane are reacted with an acrylic acid or ester compound to provide a fiber-treating composition which is almost completely free of yellowing, while at the same time being characterized by an excellent softness and smoothness.Type: GrantFiled: September 5, 1991Date of Patent: April 5, 1994Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Isao Ona, Masaru Ozaki
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Patent number: 5284886Abstract: Non-toxic polymeric compositions suitable for use in the handling and packaging of foods, beverages or pharmaceuticals, or for use in medical devices, are stabilized against thermal and oxidative degradation with a organosulfide antioxidant having no more than 5 parts per million of free mercaptan groups.Type: GrantFiled: July 24, 1991Date of Patent: February 8, 1994Assignee: Elf Atochem North America, Inc.Inventors: James L. Reilly, Joseph M. Bohen
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Patent number: 5271866Abstract: A liquid-crystalline polymer composition comprising a ferroelectric liquid-crystalline polymer and a low molecular weight liquid-crystalline compound which exhibits smectic C phase or chiral smectic C phase. Such liquid-crystalline polymer compositions have not only excellent moldabilities such as ease of orientation, but also exhibit chiral smectic C phase at wide temperature range within room temperatures and exhibit high speed response to changes of external fields and high contrast ratios when they are used for optical display elements.Type: GrantFiled: May 21, 1991Date of Patent: December 21, 1993Assignee: Idemitsu Kosan Co., Ltd.Inventors: Shunji Uchida, Kazuharu Morita, Kenji Hashimoto
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Patent number: 5269963Abstract: A liquid-crystalline polymer composition comprising a ferroelectric liquid-crystalline polymer and a low molecular weight liquid-crystalline compound which exhibits smectic C phase or chiral smectic C phase. Such liquid-crystalline polymer compositions have not only excellent moldabilities such as ease of orientation, but also exhibit chiral smectic C phase at wide temperature range within room temperatures and exhibit high speed response to changes of external fields and high contrast ratios when they are used for optical display elements.Type: GrantFiled: March 18, 1993Date of Patent: December 14, 1993Assignee: Idemitsu Kosan Co., Ltd.Inventors: Shunji Uchida, Kazuharu Morita, Kenji Hashimoto
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Patent number: 5182322Abstract: A stable binder latex that is substantially free from organic solvents useful for preparing coating compositions for application to a substrate which comprises a chlorinated ethylene vinyl acetate copolymer resin containing up to 16% by weight vinyl acetate, optionally containing acrylic acid or methacrylic acid in amounts of from 5 to 15% by weight, a nonionic surfactant that is an alkyl or aryl ester of polyoxyethylene, an alkyl or aryl ester of polyoxyethylene-polyoxypropylene adducts, an alkylphenoxy polyoxyethylene, or an alkylphenoxy polyoxypropylene-polyoxyethylene adduct that coats microscopic particles of the chlorinated ethylene vinyl acetate copolymer resins thereby preventing the particles from coalescing, and water, preferably the composition contains a low molecular weight plasticizer.Type: GrantFiled: December 5, 1990Date of Patent: January 26, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: James W. Dawes
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Patent number: 5120778Abstract: A thermoplastic molding composition is disclosed which contains a homogeneous blend of a polycarbonate resin, a graft-modified olefin rubber and, a particular flame retardant package containing a salt, halogenated phthalimine, polytetrafluoroethylene and an oligomeric carbonate. The composition was found to be suitable for preparing molded articles having an excellent level of flame resistance and impact properties.Type: GrantFiled: April 30, 1991Date of Patent: June 9, 1992Assignee: Miles Inc.Inventors: Ronald L. Price, Charles E. Lundy, Sivaram Krishnan
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Patent number: 5110892Abstract: Stirrable reactive polyurethane adhesive compositions are packaged in a single container by separating the reactive components with a disperable barrier layer so as to delay reaction until the entire adhesive composition is stirred together.Type: GrantFiled: December 18, 1990Date of Patent: May 5, 1992Assignee: National Starch and Chemical Investment Holding CorporationInventor: Malcolm Graham
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Patent number: 5064932Abstract: Novel poly(keto-esters) having carbonyl and oxycarbonyl units randomly combined with linking units derived from olefinic monomers to form an essentially straight-chain polymer backbone are provided. The poly(keto-esters) are produced by converting a portion of the carbonyl functionality of a polyketone to oxycarbonyl groups. The conversion is achieved by reacting the polyketone with an organic peroxyacid in an inert liquid medium at a temperature from -20.degree. C. to 150.degree. C.Type: GrantFiled: March 26, 1990Date of Patent: November 12, 1991Assignee: Quantum Chemical CorporationInventors: Biau-Hung Chang, Lester Y. Lee, Jack Kwiatek
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Patent number: 4973620Abstract: A composition and method for treating fibers is based on a mixture of an organopolysiloxane having at least one amino-substituted hydrocarbon radical directly bonded to a silicon atom and a carboxylic acid containing at least one ethylene oxide unit. The carboxylic acid reacts with the amino radicals to reduce yellowing and oxidation of the fiber treatment. The composition and method provide non-yellowing fibers and a treatment agent that does not gel during use, such as when exposed to carbon dioxide and/or used to treat carbon fibers.Type: GrantFiled: May 26, 1989Date of Patent: November 27, 1990Assignee: Toray Silicone Company, Ltd.Inventors: Isao Ona, Masaru Ozaki, Hidetoshi Kurusu
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Patent number: 4961967Abstract: There is disclosed a primer composition for improving the adhesion between a solid sustrate and a thermosetting or thermoplastic polymer. The composition comprises (A) an epoxy or mercapto functional organosilicon compound, (B) an alkoxymethyltriazine and (C) a difunctional aromatic compound in which the functionality is independently selected from hydroxyl, amino or carboxyl groups. The compositions of the present invention provide substantially improved wet and dry adhesion of polymers to metallic, mineral or plastic substrates.Type: GrantFiled: August 8, 1988Date of Patent: October 9, 1990Assignee: Dow Corning CorporationInventor: Edwin P. Pluddemann
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Patent number: 4960812Abstract: Polyester resin compounds useful as plastic materials which demonstrate good surface characteristics, excellent physical properties and outstanding formability, particularly when processed at a temperature lower than 100.degree. C. are disclosed. Superior characteristics are achieved by accelerating the speed of crystallization thereof by incorporating additives so that crystallization is completed throughout the product.Type: GrantFiled: October 31, 1988Date of Patent: October 2, 1990Assignee: Sam Yang Co., Ltd.Inventors: Han S. Youn, Kim Dong, II, Choi I. Gyu
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Patent number: 4957960Abstract: An encapsulating composition for electronic devices comprises a curable material such as a silicone resin and an ion scavenger compound selected from certain calixarene or oxacalixarene compounds in which at least half of the phenolic groups have been substituted by specific groups and certain silacrown compounds. Exemplary ion scavenger compounds include ##STR1## the tetraethyl acetate of 7, 13, 19, 25-tetra-tertbutyl-27, 28, 29, 30-tetrahydroxy-2,3-dihomo-3-oxacalix-4-arene and 1,1-dimethasila-17-crown-6.Type: GrantFiled: January 30, 1990Date of Patent: September 18, 1990Assignee: Loctite (Ireland) Ltd.Inventors: Stephen J. Harris, John G. Woods, John M. Rooney, Marueen G. MacManus, John Guthrie
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Patent number: 4950702Abstract: This invention discloses new plastisol compositions characterized by low viscosity at both low and high shear rates comprising a polyvinyl resin plasticized with dipropylene glycol monomethyl ether benzoate or tripropylene glycol monomethyl ether benzoate.Type: GrantFiled: December 8, 1988Date of Patent: August 21, 1990Assignee: Velsicol Chemical CorporationInventor: William David Arendt
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Patent number: 4935461Abstract: An aqueous marking pen ink for writing boards comprising an aqueous vehicle containing a resin, an ester compound and a pigment dispersed in said aqueous vehicle, said resin being selected from the group consisting of the specific polymers and said ester compound being selected from the group consisting of the specific compounds. The marking pen produces writings or markings which are easily erased with dry erasers.Type: GrantFiled: June 9, 1989Date of Patent: June 19, 1990Assignee: Pilot Ink Co., Ltd.Inventor: Hiroyuki Nakamura
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Patent number: 4923916Abstract: Tetrahalophthalate esters are disclosed herein as flame retardant processing aids for polystyrene resins.Type: GrantFiled: July 19, 1988Date of Patent: May 8, 1990Assignee: Pennwalt CorporationInventors: Joseph M. Bohen, Ronald F. Lovenguth
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Patent number: 4908399Abstract: An encapsulating composition for electronic devices comprises a curable material such as an epoxy resin and an ion scavenger compound selected from certain calixarene or oxycalixarene compounds in which at least half of the phenolic groups have been substituted by specific groups and certain silacrown compounds. Exemplary ion scavenger compounds include ##STR1## the tetraethyl acetate of 7, 13, 19, 25-tetra-tertbutyl-27, 28, 29, 30-tetrahydroxy-2,3-dihomo-3-oxacalix-4-arene and 1,1-dimethasila-17-crown-6.Type: GrantFiled: November 14, 1988Date of Patent: March 13, 1990Assignee: Loctite (Ireland) Ltd.Inventors: Stephen J. Harris, Maureen G. MacManus, John Guthrie
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Patent number: 4873271Abstract: The invention relates to thermoplastic polycarbonate molding compositions which are rendered improved resistance to gamma-radiation by the incorporation therewith of about 0.05 to about 5.0 percent by weight of an ester of poly(alkylene)oxide conforming to ##STR1## wherein R is a C.sub.1 -C.sub.20 alkyl, aryl or alkylaryl, Y denotes a hydrogen atom or a C.sub.1 -C.sub.6 alkyl radical, and X is about 1 to 40, preferably 5 to 30.The compositions of the invention exhibit excellent resistance to yellowness and formation of haze which commonly characterize gamma irradiated articles molded from polycarbonate.Type: GrantFiled: April 25, 1989Date of Patent: October 10, 1989Assignee: Mobay CorporationInventors: Charles E. Lundy, Sivaram Krishnan
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Patent number: 4857573Abstract: Plastic material compositions which comprise a plastic material matrix containing a benzhydrol-tetracarboxylic acid tetraester as a plasticizer are disclosed. The plasticizer is firmly anchored within the matrix such that migration of the plasticizer, and any other optionally present matrix components having a molecular weight of at least 100, are inhibited within the matrix. The plasticizer and matrix components are inhibited from eluting from the matrix when the matrix is brought in intimate contact with a liquid or solid material. These compositions are particularly useful as shaped bodies possessing highly elastic and adhesive characteristics.Type: GrantFiled: October 6, 1987Date of Patent: August 15, 1989Assignee: Firma Willi MollerInventors: Wilhelm Simon, Urs Oesch
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Patent number: 4845142Abstract: Optical devices such as optical disk substrates and lenses are prepared by molding a resin composition comprising 100 parts by weight of a mixture of 30 to 70% by weight of a polymer in which 50% by weight or more is composed of aromatic vinyl monomer units and 70 to 30% by weight of a polyphenylene ether, and 0.005 to 2 parts by weight of an organic carboxylic acid.Type: GrantFiled: June 13, 1988Date of Patent: July 4, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Masahiro Niwano, Kenji Manabe
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Patent number: 4826903Abstract: Composition useful for molding into articles such as food containers, beverage bottles, cured structural plastics and the like comprising molding grade linear or unsaturated polyester or polycarbonate (a) containing a mono-4-acryloxystyryl or bis-4-acyloxystyryl compound or (b) having reacted therewith or copolymerized therein a styryl residue derived from a mono-4-acryloxystyryl or bis-4-acyloxystyryl compound, having the formula ##STR1## wherein R.sup.4 and R.sup.5 represent the acyl radical and the other radicals are as defined in the specification.Preferred compositions comprise a linear polyester containing a styryl residue as an integral part of the polymer chain. The styryl residues absorb ultraviolet radiation in the range of about 250 to about 390 nm. The residues are non-extractable from the polymer and stable at the conditions at which the polymers are manufactured and processed.Type: GrantFiled: February 22, 1988Date of Patent: May 2, 1989Assignee: Eastman Kodak CompanyInventors: Max A. Weaver, Samuel D. Hilbert, Wayne P. Pruett, Clarence A. Coates, Jr.
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Patent number: 4818779Abstract: The present invention relates to water-borne emulsion adhesives based on polymers or copolymers of vinyl acetate and having uniformly dispersed therein an adhesion promoter consisting essentially of an alkoxysilane and up to about 80% by weight of a plasticizer for the poly(vinyl acetate). The alkoxysilane useful herein may be selected from ##STR1## in which R is independently selected from alkyl or alkoxyalkyl radicals having 1-4 carbon atoms. The modified adhesives have improved bond strength to wood, particularly after exposure to moisture.Type: GrantFiled: November 25, 1987Date of Patent: April 4, 1989Assignee: Dow Corning CorporationInventors: Gerald L. Witucki, Edwin P. Plueddemann
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Patent number: 4795771Abstract: A polyester composition wich comprises(a) 100 parts by weight of a polyester containing at least 80 mol % of ethylene terephthalate repeating unit,(b) 1 to 15 parts by weight of a carboxylic acid ester of a polyalkylene glycol or its derivative,(c) 0.01 to 10 parts by weight of an epoxy compound having a polyoxyalkylene chain, and(d) 0.1 to 50 parts by weight of an inorganic filler.Type: GrantFiled: February 24, 1987Date of Patent: January 3, 1989Assignee: Toyo Boseki Kabushiki KaishaInventor: Nori Yoshihara
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Patent number: 4783496Abstract: Shaped bodies of plastic material have a high elasticity and high adhesive characteristics if they contain, referred to the percentage of the plastic material of said shaped bodies, a higher percentage of a benzophenonetetracarboxylic acid tetraester. In said benzophenone-tetracartoxylate the ester forming alcohol component is an alkanol, alkenol or alkynol having 4-24 carbon atoms. The shaped bodies can be adhered to a substrate by pressing them onto it. The inventive shaped bodies are preferably strands, fibers, filaments or foils, for example foils for the packaging of products. Preferred shaped bodies are ion sensitive membranes for the determination of the concentration of ions and said membranes contain furthermore an ion selective component for the ion to be determined.Solutions of the inventive shaped bodies in a volatile organic solvent can be applied to a substrated and after the solvent is evaporated there remains on the substrate a firmly adherent elastic film.Type: GrantFiled: October 2, 1986Date of Patent: November 8, 1988Assignee: Willi MollerInventors: Wilhelm Simon, Urs Oesch
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Patent number: 4698382Abstract: Polyvinyl fluoride is plasticized with trimethyltrimellitate or related low molecular weight mellitates or phthalates without exudation.Type: GrantFiled: September 30, 1986Date of Patent: October 6, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventors: George R. McClure, Eustathios Vassiliou
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Patent number: 4666965Abstract: Disclosed is a flame-retardant glass-fiber-reinforced polyethylene terephthalate resin composition formed by blending (A) a polyethylene terephthalate resin, (B) glass fibers, (C) a nucleating agent, (D) a monoepoxy compound having a specific chemical structure and/or a benzoic acid ester having a specific chemical structure, (E) a bromine-containing polymeric flame retarder having aromatic rings in the polymeric side chains, and (E) an antimony oxide in specified proportions.This resin composition has a very high degree of crystallizability and can yield molded articles having excellent appearance, mechanical strength, heat distortion resistance and flame retardancy.Type: GrantFiled: December 30, 1985Date of Patent: May 19, 1987Assignee: Mitsubishi Rayon Co., Ltd.Inventor: Yoshihisa Aoki
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Patent number: 4624972Abstract: Carbonate polymer compositions are rendered gamma ray resistant by the incorporation of 0.1 to 10 percent by weight of the esters of aromatic polycarboxylic acids such as terephthalic, isophthalic, phthalic, trimellitic, hemimellitic, trimesic, and prehnitic acids with the monoalkyl or monoaryl ethers of polyglycols. The compositions have reduced yellowing after exposure to cobalt 60 radiation.Type: GrantFiled: November 25, 1985Date of Patent: November 25, 1986Assignee: The Dow Chemical CompanyInventor: Vaughn M. Nace
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Patent number: 4620026Abstract: A composition having utility as a plasticizer for halogen-containing resins is a mixture of (a) at least two diesters of terephthalic acid or (b) at least two triesters of trimellitic acid. The diesters of terephthalic acid are represented by the general formula ##STR1## wherein R.sub.1 is a phenyl radical or an aliphatic hydrocarbon radical of the formula C.sub.n H.sub.m, wherein n is an integer of 1 through 8 inclusive and m is equal to 2n+1; R.sub.2 is either hydrogen or an aliphatic hydrocarbon having one, two, three or four carbon atoms; x is an integer of 2 to 4 inclusive; y is an integer of 2 to 4 inclusive;The trialkyl esters of trimellitic acid are represented by the general formula ##STR2## wherein R.sub.1 is a phenyl radical or an aliphatic hydrocarbon radical of the formula C.sub.n H.sub.m wherein n is an integer of 1 through 8 inclusive and m is equal to 2n+1; R.sub.Type: GrantFiled: August 10, 1984Date of Patent: October 28, 1986Assignee: The Dow Chemical CompanyInventor: Sanford A. Siegel
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Patent number: 4619990Abstract: Polymeric dyes having pendent chromophore groups which are selected from azo, tricyanovinyl, anthraquinone, methine, and indoaniline groups fall into two classes, [A] condensation polymers, and [B] polymers derived from copolymerized ethylenically-unsaturated monomers, the dyes being capable of undergoing thermoplastic deformation by a focused laser beam when in a layer of thickness in the range of 0.1 to 100 micrometers and having an absorptivity in the range of 10 to 250 Lg.sup.-1 cm.sup.-1. They are film-forming, thermally- and light-stable, and solvent-coatable. These compounds are useful as coloring and light-absorbing agents, particularly as the light-absorbing agents in thin optical recording layers.Type: GrantFiled: March 11, 1985Date of Patent: October 28, 1986Assignee: Minnesota Mining and Manufacturing CompanyInventor: Mohamed A. Elmasry
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Patent number: 4608418Abstract: Thermoplastic hot melt compositions and process for forming such compositions are disclosed. The compositions comprise a polyurethane having at least one plasticizer reacted therein formed by heating a reaction mixture comprising at least one isocyanate having a functionality less than about 2, at least one long chain polyol, at least one chain extender and the at least one plasticizer at a temperature of at least about 330.degree. F. where the components are present in an amount as defined in the specification. The process is adequately reflected by the above language.Type: GrantFiled: February 22, 1985Date of Patent: August 26, 1986Assignee: Gensco Inc.Inventors: Richard W. Czerwinski, Larry D. Osterberger
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Patent number: 4605694Abstract: Disclosed are plasticized compositions comprising polyvinylchloride, a trimellitate ester, and a pentaerythritol alkanoic acid ester.Type: GrantFiled: October 31, 1985Date of Patent: August 12, 1986Assignee: Hercules IncorporatedInventor: John F. Walker
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Patent number: 4598107Abstract: Disclosed is a method of forming a slurry for casting into ceramic green sheets. Starting from selected quantities of a solvent, plasticizer, polymeric binder material, frit and aluminum oxide, a low viscosity pre-mix is formed by combining predetermined portions of the solvent and binder material and all of the plasticizer. The remaining portions of the solvent and binder material are combined into a post-mix. Next, the pre-mix and frit are milled in a ball mill. Then the aluminum oxide is added to the ball mill in steps using predetermined portions and milled for predetermined periods of time to achieve the desired degree of aluminum oxide deagglomeration and particle packing density. Finally, the post-mix is added to the ball mill and milled to obtain the final slurry.Type: GrantFiled: August 7, 1985Date of Patent: July 1, 1986Assignee: International Business Machines CorporationInventors: Lester W. Herron, Robert W. Nufer
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Patent number: 4584215Abstract: Polyvinylidene fluoride compositions have their flexibility improved by incorporation therewith of a minor proportion of one or more esters formed between at least one aliphatic diol such as 2,2-dimethyl 1,3-propanediol, a polyethylene glycol, propylene glycol, a polypropylene glycol, tetramethyleneglycol, a polytetramethyleneglycol or an aliphatic triol such as glycerol, and a monocarboxylic acid of aliphatic chain containing 2 to 10 carbon atoms or a monocarboxylic acid of aromatic radical such as benzoic acid. Polyvinylidene fluorides of improved flexibility are particularly useful for manufacturing flexible tubes for conveying various fluids such as, for example, hot water, chemical products, hydrocarbons.Type: GrantFiled: March 6, 1985Date of Patent: April 22, 1986Assignee: Institut Francais du PetroleInventors: Anne Bre, Marc Mollard, Maseh Osgan
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Patent number: 4560720Abstract: Medical articles made of a resin composition comprising a polyvinyl chloride and a tetracarboxylic tetraester are provided. As examples of the tetracarboxylic tetraester are mentioned tetra(2-ethylhexyl) 3,3',4,4'-biphenylethertetracarboxylate, tetra(2-ethylhexyl) 3,3',4,4'-biphenylmethanetetracarboxylate, tetra(n-dodecyl) 2,3,3',4'-biphenyl-1,1-ethanetetracarboxylate, tetra(2-ethylhexyl) 3,3',4,4'-biphenyl-2,2-propanetetracarboxylate and the like. The tetracarboxylic tetraester is incorporated in an amount from 20 to 120, preferably from 30 to 100 parts by weight per 100 parts by weight of the polyvinyl chloride. As dissolution and migration to the surface of the article of the plasticizer tetracarboxylic tetraester are low in the medical articles, said medical articles produce no adverse effects upon body fluids such as blood when contacted. Examples of preferred medical articles are blood preservation vessels, catheters and blood transfusion sets.Type: GrantFiled: October 17, 1983Date of Patent: December 24, 1985Assignee: Terumo Kabushiki KaishaInventors: Juuro Aoyagi, Toshiji Ichikawa, Mikio Koide, Takeshi Shimomura
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Patent number: 4556683Abstract: A pigment dispersing resin which essentially consists of a modified polymer obtained by introducing at least one of acidic groups and basic groups into a polymeric polyol of star-shaped structure prepared by reacting a polyol having at least four hydroxyl groups per molecule with an epoxide, the resin being compatible with pigments and vehicle resins, and a pigment dispersed paste which comprises the pigment dispersing resin and a pigment, the pigment dispersed paste being low in viscosity over a long period of time.Type: GrantFiled: August 18, 1983Date of Patent: December 3, 1985Assignee: Nippon Paint Co., Ltd.Inventors: Yoji Hirasawa, Shoji Ikeda
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Patent number: 4532293Abstract: .alpha.-cyanoacrylate instant adhesive compositions obtained by adding benzophenonetetracarboxylic acid or anhydride thereof to .alpha.-cyanoacrylate and showing superior heat resistance of the degree of 150.degree. C. with keeping instant adhesive capacity.Type: GrantFiled: October 9, 1984Date of Patent: July 30, 1985Assignee: Kabushiki Kaisha Alpha GikenInventors: Takayuki Ikeda, Kazuo Kouhara, Minoru Sasaki
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Patent number: 4518731Abstract: The kinetics of crystallization of high polymers from the molten state is modified by adding to the polymers before the thermoforming step low amounts of a nucleating agent consisting of solid particles of crystalline zeolites treated with high-boiling acrylcarboxylic acid or sulphonic acid.Type: GrantFiled: December 22, 1983Date of Patent: May 21, 1985Assignee: Montedison S.p.A.Inventors: Valentino Zamboni, Corrado Brichta, Claudio Troglia
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Patent number: 4489188Abstract: The present invention relates to a novel coating composition which contains a coalescent. The coating composition comprises a latex of a normally solid organic addition polymer and a coalescing amount of an ether-ester solvent having formula (I) or (II) ##STR1## where R represents hydrogen or an alkyl group of 1 to 4 carbon atoms, R' represents a C.sub.1 -C.sub.4 alkyl group, and n is 1 or 2. Preferred coalescents include 2-ethoxyethyl p-toluate, 2-ethoxyethyl benzoate, 2-(2-ethoxyethoxy)ethyl p-toluate, 2-(2-ethoxyethoxy)ethyl benzoate, 2-propoxyethyl o-toluate, 2-propoxyethyl benzoate, 2-ethoxyethyl o-toluate, 2-methoxy-1-methylethyl benzoate and mixtures thereof. In preferred embodiments, the organic addition polymer comprises an acrylic homopolymer or copolymer. The coating composition preferably comprises about 5-50 parts by weight of the ether-ester solvent per 100 parts of the organic addition polymer.Type: GrantFiled: October 26, 1983Date of Patent: December 18, 1984Assignee: Eastman Kodak CompanyInventors: Glenn C. Jones, Larry J. Culver
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Patent number: 4472537Abstract: There are disclosed thermoplastic inks in the nature of high viscosity, tacky pastes which exhibit high cohesive strength, high pressure sensitivity at low temperatures, high thermal stability and low affinity for silicone surfaces. These properties make the inks particularly useful in those printing processes involving multiple elastomeric transfer members, in particular, those processes wherein silicone transfer members print successive colors onto a silicone collector which in turn transfers the multicolored print in a single step to ware or decal paper. The ink formulations consist essentially, in weight percent, of:(a) 50-80% of a pigmented, vitreous, inorganic flux;(b) 2-20% of a selected organic polymer;(c) 5-25% of a selected plasticizer;(d) 2-20% of a selected amorphous tackifying resin; and optionally,(e) up to 20% of an organic wax.Type: GrantFiled: August 22, 1983Date of Patent: September 18, 1984Assignee: Corning Glass WorksInventors: Ronald E. Johnson, Lung-ming Wu
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Patent number: RE32334Abstract: Polyethylene terephthalate resin compositions containing filler or reinforcing agent, a selected sodium or potassium salt of a hydrocarbon acid or a salt of a selected organic polymer containing pendant carboxyl groups, and a selected low molecular weight organic ester, ketone, sulfone, sulfoxide, nitrile or amide. Articles molded from the compositions have high gloss when molded at temperatures below 110.degree. C.Type: GrantFiled: March 11, 1986Date of Patent: January 20, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward J. Deyrup