At Least One Solid Polymer Derived From Ethylenic Reactants Only Patents (Class 524/40)
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Patent number: 5973036Abstract: Phase-change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers.Recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibilty, offset and pick resistance, adhesion, and other desired properties. Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Furthermore, the present invention also includes methods for the preparation of reversibly-crosslinked-polymers and for their use in the above-described inks.Type: GrantFiled: May 8, 1998Date of Patent: October 26, 1999Assignee: Westvaco CorporationInventors: Michael D. Matzinger, Robert P. Rodebaugh
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Patent number: 5844023Abstract: A biologically degradable polymer mixture is proposed which consists essentially of starch and at least one hydrophobic polymer. The hydrophobic polymer is in this connection at least substantially biologically degradable and thermoplastically processable and the mixture with the starch comprising a polymer phase mediator or a macromolecular dispersing agent so that the starch is present in the mixture as disperse phase with the hydrophobic polymer as continuous phase, and the phase mediator or the dispersing agent is responsible for the molecular coupling of the two phases. As starch there is preferably used thermoplastic starch which has been prepared substantially with the exclusion of water by means of sorbitol or glycerol. The production of the biologically degradable polymer mixture is also carried out substantially with the exclusion of water.Type: GrantFiled: March 17, 1997Date of Patent: December 1, 1998Assignee: Bio-tec Biologische Naturverpackungen GmbHInventor: Ivan Tomka
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Patent number: 5804617Abstract: This invention relates to a molded object prepared from a copolyester having an inherent viscosity of 0.4 to 1.1 dL/g,wherein the acid component comprises repeat units from 90 to 40 mole % terephthalic acid and from 10 to 60 mole % of one or more additional dibasic acids selected from the group consisting of isophthalic acid, cyclohexanedicarboxylic acid, naphthalenedicarboxylic acid, diphenyldicarboxylic acid, and stilbenedicarboxylic acid;wherein the glycol component comprises repeat units from 1,4-cyclohexanedimethanol.Type: GrantFiled: February 20, 1997Date of Patent: September 8, 1998Assignee: Eastman Chemical CompanyInventors: Douglas Claire Hoffman, Thomas Joseph Pecorini, James Palmer Dickerson, Joseph Alexander DeLoach
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Patent number: 5698612Abstract: The present invention provides thermoplastically workable and completely biodegradable moulding compositions, a process for the preparation thereof and the use thereof as biodegradable materials for the production of, for example, injection-moulded parts, films, fibres or coatings.Type: GrantFiled: December 11, 1996Date of Patent: December 16, 1997Assignee: Bayer AkteingesellschaftInventors: Joachim Simon, Hanns Peter Muller, Dirk Jacques Dijkstra, Jurgen Engelhardt, Volkhard Muller, Gunter Weber
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Patent number: 5684068Abstract: The present invention, in certain embodiments discloses an insulation composition including polyvinyl alcohol cooked without an acidic medium and cellulose fibers combined with an acidic medium for spray-on insulation. In certain embodiments cellulose fibers and acidic solids are ground together. In one aspect the acidic medium is solid boric acid. In another aspect liquid boric acid is sprayed onto the fibers Systems are disclosed for introducing the fiber acidic composition into a first hose of a spray nozzle while introducing polyvinyl alcohol into a second hose of the spray nozzle. In another aspect an acrylic resin is mixed with the polyvinyl alcohol.Type: GrantFiled: July 31, 1995Date of Patent: November 4, 1997Assignee: International Cellulose Corp.Inventors: Harold F. Boyer, Steven A. Kempe, William F. Boyer
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Patent number: 5668273Abstract: This invention provides certain carboxymethyl cellulose (CMC) esters of higher acids (e.g., CMC acetate propionate, CMC propionate, CMC acetate butyrate, and CMC butyrate). These new ether derivatives of cellulose esters exhibit solubility in a wide range of organic solvents, compatibility with a variety of resins, and ease of dispersion in a water-borne formulation and are useful in coating compositions as binder resins and theology modifiers.Type: GrantFiled: January 29, 1996Date of Patent: September 16, 1997Assignee: Eastman Chemical CompanyInventors: John Michael Allen, Alan Kent Wilson, Paul Lee Lucas, Larry Gerald Curtis
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Patent number: 5656682Abstract: According to the present invention there is provided a composition as obtained from a melt comprising a starch ester and a cellulose ester. The starch ester and cellulose ester may be of the kind obtained by reaction of a mixed acid anhydride with the polysaccharides. The invention further provides the composition when shaped into articles, and the melt from which the composition is obtained.Type: GrantFiled: November 19, 1993Date of Patent: August 12, 1997Assignee: National Starch and Chemical Investment Holding CorporationInventors: Stephen Rimsa, Paul Tatarka
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Patent number: 5599858Abstract: This invention relates to binary blends of cellulose esters and aliphatic-aromatic copolyesters, cellulose esters and aliphatic polyesters as well as ternary blends of cellulose esters and/or aliphatic polyesters and/or aliphatic-aromatic copolyesters and/or polymeric compounds as well as fibers, molded objects, and films prepared therefrom.Type: GrantFiled: April 26, 1995Date of Patent: February 4, 1997Assignee: Eastman Chemical CompanyInventors: Charles M. Buchanan, Robert M. Gardner, Matthew D. Wood, Alan W. White, Steven C. Gedon, Fred D. Barlow, Jr.
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Patent number: 5412139Abstract: A dispersing agent for use in a thermosetting composition, a thermosetting composition containing said dispersing agent, and application thereof to thermosetting composition having no yield point. The dispersing agent acting on mineral fillers and used in filled acrylic or polyester resin-based thermosetting compositions belongs to the family of organophosphates corresponding to the general formula: ##STR1## where: A is a branched or unbranched polyaryl group,x and y are whole numbers between 0 and 100 such that x+y is a whole number greater than 40 but not greater than 100, ##STR2## B and E are independently a branched or unbranched polyaryl group, or an alkyl, aryl, arylalkyl, alkylaryl, alkanoyl, or amine radical, and in B and E, and R.sub.1 and R.sub.2 may be identical or different, x1, y1, x2 and y2 are whole numbers, and the sums x1+y1 and x2+y2 are not greater than 100.Type: GrantFiled: January 14, 1992Date of Patent: May 2, 1995Assignee: Coatex, S.A.Inventors: Pierre Blanchard, Jean-Bernard Egraz, Georges Ravet
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Patent number: 5334638Abstract: A stable aqueous dispersion and process for making the dispersion are provided containing hydrolyzed cellulose ester, organic solvent, water and acrylic resin having free acid functionalities that are at least partially neutralized. The dispersion is useful in coatings and can also contain surfactant and cross-linking agent.Type: GrantFiled: January 21, 1992Date of Patent: August 2, 1994Assignee: Eastman Chemical CompanyInventors: Chung M. Kuo, Larry G. Curtis, Paul L. Lucas
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Patent number: 5331027Abstract: The lubricious hydrophilic coatings of the invention are significantly more lubricious when wet than when dry, are adherent to a variety of substrates, and are resistant to removal by wet abrasion. In one embodiment, the coatings include a hydrophilic polyolefin such as polyvinyl-pyrrolidone and a water-insoluble stabilizing polymer such as a cellulose ester. The coatings may also include an adherent polymer and a plasticizing agent. The coating may be applied by preparing a solution of the stabilizing polymer and a solution of the hydrophilic polyolefin, and coating the substrate first in one then the other. Alternatively, both the stabilizing and hydrophilic polymers may be dissolved in a single solvent system and applied to the substrate in a single step. In another embodiment, only a solution of a hydrophilic polyolefin is applied directly to the substrate.Type: GrantFiled: May 25, 1993Date of Patent: July 19, 1994Assignee: Sterilization Technical Services, Inc.Inventor: Richard J. Whitbourne
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Patent number: 5321063Abstract: A powder coating material for providing a crepe-like coating having a uniformly and densely distributed superior anesthetic appearance and having a high corrosion resistance, is capable of forming color distinct ridges and valleys in the wrinkle profile of the coating layer. The powder coating material consists of a co-milled powdery product, of which the particle sizes are not higher than 105 .mu.m, and which is composed of (A) 95-99.5 parts by weight of a first resin component comprising a thermosetting resin which is solid at room temperature and (B) 5-0.5 parts by weight of a second resin component comprising a thermosetting resin which is solid at room temperature and contains 3-8% by weight of a cellulose ester. The powder coating material is prepared by co-milling pelletized resin products of the components (A) and (B).Type: GrantFiled: May 19, 1992Date of Patent: June 14, 1994Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Eiji Shimada, Kenzo Maeda, Shingo Okamoto
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Patent number: 5302637Abstract: There are provided novel miscible blend compositions comprising (a) a cellulose ester and (b) a vinylphenol containing polymer. The blends do not exhibit large scale phase separation and provide properties which are essentially intermediate between those of either cellulose ester or vinylphenol containing polymers. The blends are useful for both molded and film applications as well as for coatings.Type: GrantFiled: July 22, 1992Date of Patent: April 12, 1994Assignee: Eastman Kodak CompanyInventors: Christine J. T. Landry, David M. Teegarden, Kevin J. Edgar, Stephen S. Kelley
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Patent number: 5292783Abstract: This invention relates to binary blends of cellulose esters and aliphatic-aromatic copolyesters, cellulose esters and aliphatic polyesters as well as ternary blends of cellulose esters and/or aliphatic polyesters and/or aliphatic aromatic copolyesters and/or polymeric compounds as well as fibers, molded objects, and films prepared therefrom.Type: GrantFiled: November 21, 1991Date of Patent: March 8, 1994Assignee: Eastman Kodak CompanyInventors: Charles M. Buchanan, Robert M. Gardner, Matthew D. Wood, Alan W. White, Steven C. Gedon, Fred D. Barlow, Jr.
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Patent number: 5286768Abstract: An aqueous coating composition is provided containing up to 50 weight percent, based on the total solids, of a cellulose mixed ester and a compatible amine neutralized acrylic resin.Type: GrantFiled: March 18, 1992Date of Patent: February 15, 1994Assignee: Eastman Kodak CompanyInventor: Kenneth R. Walker
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Patent number: 5276075Abstract: An aqueous emulsion of an acrylic polymer having a glass transition temperature between 0.degree. C. and 20.degree. C., glitter, and an associative thickener which does not destabilize the glitter comprising a hydrophobically-modified cellulosic polymer, wherein after the composition is applied onto a substrate and cured, it remains dimensionally stable, flexible, and exhibits a gloss of at least 50 after at least one washing.Type: GrantFiled: October 30, 1991Date of Patent: January 4, 1994Assignee: Binney & Smith Inc.Inventor: Andree F. Santini
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Patent number: 5221702Abstract: A composite paving block formed from desired proportions of asphalt, plastic such as polyethylene or phenolic resin, elastomeric material such as rubber or polyvinylchloride, and fibre material such as nylon or rayon, is disclosed. Recycled or reclaimed materials such as reclaimed asphalt, recycled polyethylene bottles, and recycled tires may be used. The materials are heated and blended together into a relatively uniform mixture of composite material. The composite material is further heated and is then molded into individual paving blocks, which exhibit a property of very high compressive strength.Type: GrantFiled: December 9, 1991Date of Patent: June 22, 1993Assignee: Enviropaver Inc.Inventor: Denis C. Richards
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Patent number: 5130352Abstract: Mouldable filled polyethylene compositions containing particulate lignocellulosic fillers are disclosed. The compositions contain 0-89.97% (by weight of the composition) of polyethylene, 0.01-89.99% (by weight of the composition) of grafted polymer, 10-60% (by weight of the composition) of particulate lignocellulosic material and 0.02-20% (by weight of the composition) of boric acid and/or borax. The boric acid and/or borax is added to suppress odor during manufacture and processing of the compositions. The compositions may be formed into moulded articles e.g. containers and the like.Type: GrantFiled: May 16, 1991Date of Patent: July 14, 1992Assignee: Canadian Forest Products Ltd.Inventor: Suezone Chow
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Patent number: 5073581Abstract: Spinnable dopes containing fiber-forming polymers being at least about 55% and less than about 80% lyotropic polysaccharide and at least about 20 percent and less than about 45% thermally-consolidatable polymer and a process for making oriented, shaped articles of lyotropic polysaccharide/thermally-consolidatable polymer blends by orienting the dopes and removing the solvent.Type: GrantFiled: March 7, 1991Date of Patent: December 17, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Carmen A. Covelli, E. Renee Perusich
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Patent number: 5070121Abstract: The invention concerns a solvent-free, polymerizing hotmelt substance free of, or low in monomers, for corrosion- and/or abrasion proofing and/or forming a protective film with barrier properties on a real substrates and molded bodies made of metal, plastic, cellulose materials and/or inorganic materials, in particular for wrapping purposes, and consisting of(a) one or more polymerizing polymers containing hydroxyls with an average molecular weight (M.sub.w) between 1,000 and 500,000 and with a glass transition temperature (T.sub.g).gtoreq.20.degree. C., and/or(b) one or more polymerizing, linear, unbranched and/or unbranched polyesters and/or their copolymers with an average molecular weight (M.sub.w) between 900 and 50,000 and with a glass transition temperature (T.sub.g).gtoreq.-50.degree. C.Type: GrantFiled: April 25, 1989Date of Patent: December 3, 1991Assignee: Schmalbach Lubeca AGInventors: Rudolf Hinterwaldner, Georg Bolte
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Patent number: 5011874Abstract: Improved cellulose ester-polymer combinations contain a cellulose ester A and at least one polymerized monomer B of the following formula ##STR1## wherein the substituents have the meaning given in the description and wherein the particles of the combinations are essentially 0.1 to 10 mm in size.Type: GrantFiled: October 10, 1989Date of Patent: April 30, 1991Assignee: Wolff Walsrode AktiengesellschaftInventors: Lutz Hoppe, Wolfgang Koch, Erhard Luhmann, Michael Piepho
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Patent number: 5009812Abstract: As a result of the action of electron acceptors, for example chlorine, bromine and/or iodine, on compositions containing a linear, branched or structurally crosslinked polymer and an unsubstituted or substituted tetrathionaphthalene, tetraselenonaphthalene, tetratelluronaphthalene, tetrathiotetracene, tetraselenotetracene or tetratellurotetracene, electrical conductivity is imparted to the compositions through the formation of charge-transfer complexes. These compositions are suitable for the production of mouldings, filaments, fibres, coatings and composite materials which have an antistatic finish or are electrically conducting.Type: GrantFiled: March 25, 1988Date of Patent: April 23, 1991Assignee: Ciba-Geigy CorporationInventors: Jurgen Finter, Bruno Hilti, Carl W. Mayer, Ernst Minder, Josef Pfeifer
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Patent number: 4990404Abstract: An invention is a chemical process for complete destruction and safe disposition of hazardous organic chemicals carbonaceous chemicals. The invention also comprises the process for production of an inert polymer formed essentially of Carbon and Sulfur, and also comprises the new inert polymer, itself and articles made of the new polymer. This new polymer has many of the properties of refractory materials and is an inert non-inflammable cross-linked polymer that is relatively insoluble in all generally known solvents. In the process of the invention, a carbonaceous chemical and Sulfur is heated, in an atmosphere of Nitrogen at 500.degree. to 1500.degree. C. Waste gases including sulfur and sulfides are condensed, scrubbed and the sulfur recycled. The solids residue when analyzed by a mass spectrometer contains less than one (1) part per million (1 ppm) of unreacted organic chemical.Type: GrantFiled: October 2, 1989Date of Patent: February 5, 1991Assignee: Sultech, Inc.Inventor: Harold W. Adams
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Patent number: 4970247Abstract: Improved cellulose ester dispersions in the aqueous phase contain dispersed particles which contain cellulose esters, a polymerized monomer A having a polymerizable double bond and a polymerized monomer B having at least two polymerizable double bonds.Type: GrantFiled: March 13, 1989Date of Patent: November 13, 1990Assignee: Wolff Walsrode AktiengesellschaftInventors: Lutz Hoppe, Wolfgang Koch, Erhard Luhmann, Michael Piepho
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Patent number: 4946932Abstract: A method of preparing water-dispersed polymer blends, comprising the steps of:(i) preparing an aqueous polymerization mixture by adding to water, a sulfonate group-containing polyester or polyesteramide, one or more .alpha.,.beta.-unsaturated monomers and a polymerization initiator; and(ii) polymerizing said polymerization mixture to provide said water-dispersed polymer blend.Also disclosed is an aqueous dispersion of a polymer blend, comprising an aqueous dispersion having a solids content of about 30% to 65% of a polyester or polyesteramide blend comprising a sulfonate group-containing polyester or polyesteramide and a polymer comprising repeat units from one or more .alpha.,.beta.-unsaturated monomers.Type: GrantFiled: December 5, 1988Date of Patent: August 7, 1990Assignee: Eastman Kodak CompanyInventor: Waylon L. Jenkins
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Patent number: 4876296Abstract: A method and composition employing microencapsulated thickeners for providing controlled thickening of thermosetting resins, including sheet molding compositions.Type: GrantFiled: April 27, 1987Date of Patent: October 24, 1989Assignee: Olin CorporationInventors: J. Stanley Miller, Thomas J. Bowles
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Patent number: 4873270Abstract: A substance based on polyurethane from which biodegradable materials can be obtained by rolling comprises, as well as a polyurethane resin serving as its essential constituent, a carbohydrate, at least one second thermoplastic polymer which is miscible in the molten state with the polyurethane resin and/or at least one third biodegradable polymer chosen from among biodegradable aliphatic polyesters, preferably of the same nature as the polyurethane resin used.Type: GrantFiled: February 9, 1988Date of Patent: October 10, 1989Assignee: Charbonnages De FranceInventors: Jean-Marc Aime, Georges Mention, Andre Thouzeau
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Patent number: 4812495Abstract: Disclosed are anaerobic adhesive compositions which cure under anaerobic conditions, said compositions being comprised of at least one carboxylated cellulose ester such as carboxylated cellulose acetate butyrate or carboxylated cellulose acetate propionate, at least one acrylate monomer, and at least one hydroquinone-based stabilizer. The composition can optionally contain an accelerator.Type: GrantFiled: October 19, 1987Date of Patent: March 14, 1989Assignee: Eastman Kodak CompanyInventor: I. Daniel Sand
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Patent number: 4801632Abstract: Thermoplastic moulding materials consisting of(1) 70 to 99.9% by weight of a cellulose ester or cellulose mixed ester(2) 0.1 to 30% by weight of a rubber polymer built up in the form of blocks from recurring structural units (I) with molecular weights of 10,000 to 1,000,000--A--B-- IwhereinA denotes bifunctional polysiloxane segements of the formula--(R.sup.1)(R.sup.2)SiO--.sub.x IIin whichR.sup.1 and R.sup.2 =aryl (in particular phenyl) or alkyl (in particular methyl) andx is a number such that the molecular weight is .gtoreq.500, andB denotes bifunctional aliphatic polyester and/or aliphatic polyester segments with molecular weights of .gtoreq.800,and the glass transition temperatures of the polymeric blocks A and B are less than 20.degree. C., which contains additionally(3) 0 to 30% by weight based on the mixture of (1) and (2) of a plasticizer.Type: GrantFiled: February 24, 1987Date of Patent: January 31, 1989Assignee: Bayer AkteingesellschaftInventors: Herbert Eichenauer, Christian Lindner, Friedemann Muller, Hartwig Hocker, Helmut Keul
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Patent number: 4772646Abstract: The present invention relates to a liquid suspension of a high molecular weight, water-soluble polymer or water-soluble salt prepared by admixing and water-soluble polymer with a hydrocarbon carrier fluid and a suspending agent comprising an aqueous emulsion of a copolymer comprising a water-insoluble and substantially hydrocarbon-insoluble polymer consisting of particles having a dry weight average particle size of below 10 .mu.m and which is formed from monomers of which 80% to 100% are hydrophobic, 30 to 100% are polar and 0% to 20% are hydrophilic. More particularly, the copolymer comprises from about 80% to about 100% C.sub.1-30 alkyl methacrylate monomers and from about 0% to about 20% hydrophilic monomers. Preferably, the copolymer comprises 90% to 100% 2-ethylhexylacrylate and from about 0.5% to about 10% acrylic acid. The liquid suspension is capable of supporting about 5 pounds of water-soluble polymer per gallon of suspension.Type: GrantFiled: November 17, 1986Date of Patent: September 20, 1988Assignee: Halliburton CompanyInventors: Weldon M. Harms, Lewis R. Norman
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Patent number: 4746691Abstract: A colored opacified plastic material containing an organic binder, at least one pigment, a hydrophilic polymerizable plastic material and a cross linking agent is disclosed together with a method of making the same.Type: GrantFiled: January 20, 1987Date of Patent: May 24, 1988Assignee: Color Optics, Ltd.Inventor: Ari Fuhrman
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Patent number: 4740541Abstract: A coating composition is disclosed which comprises a methacrylic resin, a cellulose acetate butyrate resin, a solvent and optionally a slip additive. Polyvinyl chloride coated with this composition is resistant to the transfer of copier print.Type: GrantFiled: May 29, 1987Date of Patent: April 26, 1988Assignee: Borden, Inc.Inventor: David R. Morse
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Patent number: 4727099Abstract: A coating composition containing a film forming binder and a carrier for the binder; wherein the binder consists essentially of(1) a reactive polyurethane of the formula ##STR1## where R is a divalent or trivalent aliphatic or cycloaliphatic group,R.sup.1 is an alkyl group having 1-4 carbon atoms, n is 2-3;(2) a hydroxy containing polymer having a hydroxyl number of 50-200 and having pendent ester groups;(3) an organo metallic alkylate catalyst selected from the group of an aluminum alkylate, zirconium alkylate, titanium alkylate or mixtures thereof.The composition can be applied by conventional techniques such as spraying and can be cured at relatively low baking temperatures.Type: GrantFiled: August 15, 1986Date of Patent: February 23, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventor: Joseph A. Vasta
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Patent number: 4727100Abstract: A coating composition useful as an exterior for automobiles and trucks and as a refinish composition containing a film forming binder and a carrier for the binder; wherein the binder contains(1) a reactive component of the formula ##STR1## where R is a divalent or trivalent aliphatic or cycloaliphatic group,R.sup.1 is an alkyl group having 1-4 carbon atomsn is 2-3(2) a hydroxy containing acrylic polymer having drying oil fatty acid moieties and a hydroxyl number of 20-500 and(3) an organo metallic alkylate selected from the group of an aluminum, titanium, zirconium alkylate, or mixtures thereof.The composition can be applied by conventional techniques such as spraying and cures at ambient temperatures or can be baked at relatively low temperatures.Type: GrantFiled: August 15, 1986Date of Patent: February 23, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventor: Joseph A. Vasta
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Patent number: 4650821Abstract: The present invention relates to a novel acrylic composition, novel acrylic castings prepared therefrom, and a novel process for the preparation of the acrylic castings. The composition comprises methyl methacrylate, about 0.5 to 20% by weight of a carboxylated cellulose ester, and about 1 to 100 ppm of a vanadium promoter. Optionally, a heat dissipative material, such as a plasticizer or an additional monomer, can also be employed. In accordance with the process of the present invention, an acrylic monomer comprising methyl methacrylate is combined with about 0.5 to 20% by weight of a carboxylated cellulose ester so as to form an easily pourable syrup, about 1 to 100 ppm of a vanadium promoter is added to the syrup and the resulting solution is poured into a suitable mold, and the solution is cured at room temperature so as to form a hard acrylic casting.Type: GrantFiled: April 25, 1986Date of Patent: March 17, 1987Assignee: Eastman Kodak CompanyInventor: Donald R. Leonard
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Patent number: 4638025Abstract: A colored opacified plastic material containing an organic binder, at least one pigment, a hydrophilic polymerizable plastic material and a cross linking agent is disclosed together with a method of making the same.Type: GrantFiled: April 17, 1985Date of Patent: January 20, 1987Assignee: Color Optics, Ltd.Inventor: Ari Fuhrman
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Patent number: 4603160Abstract: The present invention relates to a novel acrylic composition, novel acrylic castings prepared therefrom, and a novel process for the preparation of the acrylic castings. The composition comprises methyl methacrylate, about 0.5 to 20% by weight of a carboxylated cellulose ester, and about 1 to 100 ppm of a vanadium promoter. Optionally, a heat dissipative material, such as a plasticizer or an additional monomer, can also be employed. In accordance with the process of the present invention, an acrylic monomer comprising methyl methacrylate is combined with about 0.5 to 20% by weight of a carboxylated cellulose ester so as to form an easily pourable syrup, about 1 to 100 ppm of a vanadium promoter is added to the syrup and the resulting solution is poured into a suitable mold, and the solution is cured at room temperature so as to form a hard acrylic casting.Type: GrantFiled: July 1, 1985Date of Patent: July 29, 1986Assignee: Eastman Kodak CompanyInventor: Donald R. Leonard
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Patent number: 4598111Abstract: Multilayer coatings having at least one base coating containing pigments and at least one transparent top coating are applied from coating compositions on the substrates and cured together. The coating composition contains:(a) a film-forming synthetic resin;(b) an organic solvent in which the synthetic resin is soluble; and(c) polymer microparticles having polar and/or ionic groups on their surfaces and a diameter of about 0.01 to 5 microns obtained by emulsion polymerization of ethylenically unsaturated monomers, these monomers having a portion comprising 2 or more double bonds per molecule and the microparticles are insoluble in the solution of (a) and (b).The base coat(s) have (d) pigments and the top coats are free of pigments.Type: GrantFiled: September 4, 1984Date of Patent: July 1, 1986Assignee: Glasurit America, Inc.Inventors: Howard J. Wright, David P. Leonard, Roger A. Etzell
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Patent number: 4576981Abstract: The invention relates to an adhesive composition which is suitable for use on a shaped part of polyester, in particular a polyester film, and comprises a copolyester, optionally in combination with light-sensitive substances, fillers and pigments, whereby the copolyester additionally contains at least one copolymer of vinylidene chloride, preferably in a weight ratio of about 3:1 to 1:1. The adhesive composition can furthermore contain cellulose acyl esters, such as low molecular-weight cellulose acetobutyrate or cellulose propionate. Polybasic oxycarboxylic acids and levelling agents can also be present. The adhesive composition can be employed in mixtures with, for example, light-sensitive lacquer systems.Type: GrantFiled: April 25, 1984Date of Patent: March 18, 1986Assignee: Hoechst AktiengesellschaftInventors: Manfred Hilger, Gunter Hultzsch, Roman Keiper
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Patent number: 4555535Abstract: A coating composition in which the binder contains the following:(1) an acrylic polymer having pendent hydroxyl containing ester groups of ester group A of the formula ##STR1## and ester group (B) which is either ##STR2## or wherein R.sup.1 is a saturated hydrocarbon group having 2-4 carbon atoms, R.sup.2 is a tertiary hydrocarbon group having 8 through 10 carbon atoms; and(2) an aliphatic, aromatic or cycloaliphatic polyisocyanate;The composition can be used as an unpigmented clear finish or can contain convention pigments and be used as a colored finish. The composition is useful for refinishing trucks and automobiles and as an original finish for trucks, automobiles, boats, outdoor equipment and the like since the resulting finish in glossy, durable and weatherable.Type: GrantFiled: March 7, 1984Date of Patent: November 26, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventors: Milan B. Bednarek, Eric C. Houze
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Patent number: 4551492Abstract: A polyester composition in organic solvents with about 40% polyester, 26% melamine crosslinker and 16% cellulose acetate butyrate provides a coating composition with 18% binder solids.Type: GrantFiled: December 27, 1984Date of Patent: November 5, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventor: Armand Aerts
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Patent number: 4546133Abstract: Compositions and methods are provided for forming a coated wood product having the appearance and texture of wood grain, which conceals joints on the wood surface and which is capable of accepting conventional wood stain.Type: GrantFiled: December 30, 1983Date of Patent: October 8, 1985Assignee: DG Shelter ProductsInventor: Carroll W. Cope
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Patent number: 4532277Abstract: Contact lenses and implants for human medicine can be fabricated from a polymer blend comprising 98-80% by weight of component A and 2-20% by weight of component B wherein:component A is a cellulose ester of an aliphatic carboxylic acid with up to 40% by weight of total component A of an ethylene/vinyl acetate copolymer having 30-98% by weight, relative to ethylene/vinyl acetate, of incorporated vinyl acetate andcomponent B is a homopolymer or copolymer of water-soluble vinyl monomers and up to 10% by weight relative to the total polymer B of multifunctional crosslinker vinyl compounds.Type: GrantFiled: December 27, 1983Date of Patent: July 30, 1985Assignee: Bayer AktiengesellschaftInventor: Frank Wingler
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Patent number: 4532177Abstract: Base coat compositions comprise a film-forming resin component selected from one or a mixture of any of alkyd, polyester, acrylic and polyurethane resins, having blended therewith from 1.0 to 15.0% by weight of pigment and from 2.0% to 50.0% by weight of cellulose ester material having the following chemical characteristics:Solution viscosity, seconds--0.05-0.005Acetyl, % by wt.--10.0-15.00Propionyl, % by wt.--0.1-0.8Butyryl, % by wt.--36.0-40.0Free-Hydroxyl, % by wt.--1.0-2.0The compositions when containing pigment such as metallic particles are particularly useful in wet-on-wet automotive finish applications, allowing minimal metallic particle reorientation upon the application thereto of polymeric top coats (particularly those containing solvent), and a considerable increase in solids content.Type: GrantFiled: July 30, 1984Date of Patent: July 30, 1985Assignee: Eastman Kodak CompanyInventor: Ralph W. Mahar
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Patent number: 4518726Abstract: A metallic base paint comprising a blend consisting essentially of (A) a silyl group containing vinyl type resin having a backbone substantially comprising a polyvinyl type polymer chain and containing at least one silicon atom attached to a hydrolyzable group at a terminal or in a side chain in its molecule; (B) metal powder; and one or more of the following: (C) acrylic resin; (D) cellulosic compound; (E) reactive silicon compound. This paint can be cured at low temperatures, with setting time, and provides a coated surface of uniform metallic luster.Type: GrantFiled: April 5, 1982Date of Patent: May 21, 1985Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Yasushi Kato, Hisao Furukawa
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Patent number: 4506045Abstract: Thermoplastic moulding compositions consisting of from 1 to 99% by weight of at least one cellulose ester or cellulose mixed ester, from 99 to 1% by weight of an aliphatic polyester or polyether containing carbonate groups and, optionally, standard auxiliaries and additives.Type: GrantFiled: September 14, 1983Date of Patent: March 19, 1985Assignee: Bayer AktiengesellschaftInventors: Helmut Waniczek, Christian Lindner, Carlhans Suling, Herbert Bartl, Walter Uerdingen
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Patent number: 4481312Abstract: A process for the production of sheet structure, including fibres from plastics solutions containing deped, burr-shaped or fibrous polyacetylene particles, in which process the solution is shaped to form a sheet and the solvent is removed and the sheet structure thus prepared.Type: GrantFiled: March 26, 1982Date of Patent: November 6, 1984Assignee: Bayer AktiengesellschaftInventors: Jurgen Hocker, Rudolf Merten, Bernd Willenberg
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Patent number: 4451597Abstract: The coating composition useful as the exterior finish on automobiles and trucks contains about 25-50% by weight of a binder of film-forming constituents and 50-75% by weight of a volatile organic solvent carrier and additionally contains 2-150% by weight, based on the weight of the binder, of pigment; the binder is about 20-70% by weight of an acrylic polymer containing reactive hydroxyl, carboxyl, amide groups or any mixture of such groups, about 0-40% by weight of a hydroxy-terminated polyester urethane resin and about 25-40% by weight of an alkylated melamine formaldehyde crosslinking resin; in addition the composition contains about 4-20% by weight, based on the weight of the binder, of a rheology control agent of an alcohol soluble cellulose acetate butyrate having a buryryl content of about 45-50% by weight, a hydroxyl content of about 4-5% by weight and a viscosity of about 0.2-0.4 second.Type: GrantFiled: November 15, 1982Date of Patent: May 29, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventor: Claus Victorius
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Patent number: 4446261Abstract: Water-insoluble, high water-absorbent polymer beads are prepared by dispersing and suspending an aqueous solution of a water-soluble, ethylenically unsaturated monomer containing a small amount of a crosslinking agent in a dispersion medium of a hydrocarbon or a halogenated aromatic hydrocarbon, carrying out the bead polymerization in the presence of a water-soluble radical polymerization initiator and a protecting colloid comprising a cellulose ester or cellulose ether which is oil-soluble at the polymerization temperature, and separating the resulting beads.Type: GrantFiled: March 22, 1982Date of Patent: May 1, 1984Assignee: Kao Soap Co., Ltd.Inventors: Harumasa Yamasaki, Shoichiro Harada
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Patent number: 4434259Abstract: Improved base coatings for use on paper substrates to be vacuum metallized consist essentially of an organic solvent solution (e.g. ethyl acetate or ethyl acetate/toluene) containing about 10-30 wt. % of a film-forming coating mixture of (a) about 90-98 wt. % of a vinyl acetate/acrylic acid copolymer (97.5-99/1-2.5%) or a vinyl acetate/monoethyl maleate copolymer (94-97/3-6%) and (b) about 2-10 wt. % of a soluble nitrocellulose resin solids, the resin being soluble in the solvent and having a nitrogen content of about 12 wt. % and a viscosity of from about 4-5 sec. in a 25% solution to about 3-4 sec. in a 20% solution of ethyl alcohol/toluene/ethyl acetate (25/55/20), when measured using the Falling Ball method.Paper products coated with the base coating (about 2-6 lbs./3000 ft..sup.2) are characterized by a balanced combination of alkali removability, water-resistance, and block-resistance. The metallized products are smooth and glossy, and the aluminized product is especially useful for bottle labels.Type: GrantFiled: April 26, 1982Date of Patent: February 28, 1984Assignee: National Starch and Chemical CorporationInventors: Samuel Gold, Arthur A. Tracton, Josephine M. Rosenski