Ethylenic Group Patents (Class 524/264)
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Patent number: 4613640Abstract: Compositions, including hydrocarbon elastomeric block copolymers, such as styrene-ethylene-butylene-styrene and styrene-butadiene-styrene with mineral oil and essentially linear (i.e. non-cross-linked) polysiloxanes are made transparent by using polysiloxanes which are miscible with mineral oil. A preferred polysiloxane is polymethyloctyl siloxane. Transparent films, bags, tubes and other articles, especially useful in medical applications, such as catheters, blood tubes and blood bags, can be processed from the compositions.Type: GrantFiled: November 13, 1985Date of Patent: September 23, 1986Assignee: Medical Research Associates, Ltd. #2Inventors: Richard J. Deisler, Eugene P. Goldberg
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Patent number: 4608433Abstract: Disclosed herein are inert monovalent hydrocarbon terminated polysulfide copolymers having the general structure ##STR1## wherein n is an integer from about 2 to about 8, l is zero or a positive integer, m is a positive integer, each R is independently an organic polyradical with the radicals residing on carbon atoms, p is zero or a positive integer which is the difference between the number of radicals on R and 2, and each Y is a terminal substituent that is an inert monovalent hydrocarbon radical.Type: GrantFiled: July 24, 1985Date of Patent: August 26, 1986Assignee: The Dow Chemical CompanyInventors: Victor E. Meyer, Thomas E. Dergazarian
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Patent number: 4560719Abstract: The invention provides a polyolefin-based rubber composition capable of giving a vulcanizate having excellent flame retardancy along with high mechanical strengths. The composition comprises: (A) 100 parts by weight of a polyolefin-based synthetic rubber, e.g. EPDM rubber; (B) 1 to 100 parts by weight of an organopolysiloxane; (C) 1 to 100 parts by weight of a bromine-containing flame retardant agent and/or red phosphorus; (D) 5 to 200 parts by weight of aluminum hydroxide and/or magnesium hydroxide; and (E) 0.5 to 20 parts by weight of zinc carbonate and/or manganese carbonate.Type: GrantFiled: February 26, 1985Date of Patent: December 24, 1985Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tsutomu Nakamura, Kunio Itoh
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Patent number: 4551485Abstract: The impact strength of thermoplastic poly(ethylene terephthalate) molding compositions containing a reinforcing filler (preferably glass fiber), an epoxidized crystallization promoter (e.g., an epoxidized vegetable oil) and a nucleating agent (e.g., sodium stearate) is markedly improved by including in the composition a small amount of an organofunctional silane, i.e., a compound characterized by having a functional substituent at the end of a methylene chain bound to a silicon atom to which are also bonded a plurality of readily hydrolyzable groups. A few such compounds are gamma-aminopropyltriethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-aminopropyltriethoxysilane and gamma-glycidoxypropyltrimethoxysilane. The formulations may also contain a warp-reducing filler such as mica. Organofunctional silanes typically have application in thermoplastic polymers only as coupling agents, i.e.Type: GrantFiled: September 4, 1984Date of Patent: November 5, 1985Assignee: Ethyl CorporationInventors: Gary S. Ragan, Jesse D. Jones
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Patent number: 4547543Abstract: A water-absorptive contact lens made of a copolymer consisting essentially of:(a) from about 50 to about 95 parts, by weight of the total monomer units, of hydrophilic monomer units consisting essentially of from about 25 to 100 parts, by weight of the total hydrophilic monomer units, of N-methyl-3-methylene-2-pyrrolidone represented by the formula: ##STR1## and from 0 to about 75 parts, by weight of the total hydrophilic monomer units, of N-vinyl-2-pyrrolidone; and(b) from about 5 to about 50 parts, by weight of the total monomer units, of reinforcing monomer units consisting essentially of at least one monomer selected from the group consisting of alkyl acrylates, alkyl methacrylates, styrene, alkyl styrenes, benzyl acrylate and benzyl methacrylate.Type: GrantFiled: November 8, 1984Date of Patent: October 15, 1985Assignee: Toyo Contact Lens Co., Ltd.Inventors: Takanori Shibata, Masashige Yamanaka, Hiroyuki Kako
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Patent number: 4543381Abstract: An unfilled polymeric composition having improved electrical treeing and water treeing properties comprising a polymeric component and effective amounts of a silane and a fatty acid. The compositions are particularly useful as insulation for high voltage transmission and distribution cables.Type: GrantFiled: June 24, 1983Date of Patent: September 24, 1985Assignee: National Distillers and Chemical CorporationInventors: Anthony Barlow, Melvin F. Marginger
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Patent number: 4539345Abstract: One-part moisture-curable polyurethane adhesive, coating, sealant, or casting compositions containing a blend of isocyanate-functional prepolymer, terpene-phenolic resin, and silane compound. The compositions adhere to a variety of unprimed substrates, and resist moisture and UV exposure.Type: GrantFiled: February 4, 1985Date of Patent: September 3, 1985Assignee: Minnesota Mining and Manufacturing CompanyInventor: Dennis D. Hansen
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Patent number: 4535106Abstract: Thermoplastic compositions of a polyphenylene ether resin and a precompounded blend of a poly(arylolefin-olefin), an organopolysiloxane and a linking agent are described. The precompounding of the organopolysiloxane with a poly(arylolefin-olefin) enables the compatible incorporation of larger amounts of organopolysiloxane than otherwise possible, and the resulting novel composition provides various desirable properties.Type: GrantFiled: October 5, 1984Date of Patent: August 13, 1985Assignee: General Electric CompanyInventors: Visvaldis Abolins, Fred F. Holub
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Patent number: 4533687Abstract: The invention provides a highly flame-retardant polyolefin-based rubber composition free from the problem of the formation of toxic or corrosive gases and a large volume of smoke by burning of conventional flame-retardant rubber compositions impregnated with a large amount of a halogen-containing flame retardant agent. The inventive rubber composition comprises (a) a synthetic rubber of polyolefin type, (b) an organopolysiloxane resin which is preferably formed of monofunctional siloxane units and tetrafunctional siloxane units in a molar ratio of 0.6/1.0 to 2.0/1.0, (c) red phosphorus and (d) aluminum hydroxide or magnesium hydroxide in a specified proportion.Type: GrantFiled: January 31, 1984Date of Patent: August 6, 1985Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kunio Itoh, Toshimichi Oshima, Tsutomu Nakamura
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Patent number: 4532272Abstract: An additive comprising at least one parting agent is added to a particle form evaporator to reduce the buildup of polymer on the walls and rotor of the agitated bed of the particle form evaporator. In an alternate embodiment, the additive employed further comprises at least one filler.Type: GrantFiled: June 28, 1984Date of Patent: July 30, 1985Assignee: Phillips Petroleum CompanyInventors: Mason S. Wilt, Richard E. Dietz
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Patent number: 4520176Abstract: A textile finishing composition comprising (1) a diluent and (2) a durable press resin composition containing (a) an aminoplast resin and (b) an aldehyde. The textile finishing composition is combined with an acid catalyst and applied to textile materials to impart softness, improved wetting properties and durable press properties.The textile finishing composition is applied at lower than normal dry add-on levels to textile materials to provide textile materials having lower levels of formaldehyde.Type: GrantFiled: December 12, 1983Date of Patent: May 28, 1985Assignee: SWS Silicones CorporationInventors: Eugene R. Martin, David S. Ansel, Paul A. Manis
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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: 4490495Abstract: A solution for coating plastic material for tinting and the method of making said solution is described. The process for coating plastic material and for tinting the material is also described. This solution and process provides scratch resistance to the surface of the coated polycarbonate and CR-39 lenses, absorbs dye and permits the plastics to absorb the dye and adheres strongly to the plastic surface.Type: GrantFiled: November 15, 1982Date of Patent: December 25, 1984Assignee: Techsight Corp.Inventor: Hermann Weber
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Patent number: 4482476Abstract: A fluoroelastomer-containing non-tacky electrically conductive coating composition which comprises (a) a fluoroelastomer, (b) a fluororesin, (c) a coupling agent, (d) an electrically conducting material, (e) a liquid vehicle and optionally (f) an inorganic fibrous material, the weight ratio of the fluoroelastomer (a) and the fluororesin (b) being from 95:5 to 35:65, a coating film formed from which has electrical conductivity as well as the properties inherent to the fluoroelastomer.Type: GrantFiled: November 8, 1982Date of Patent: November 13, 1984Assignee: Daikin Kogyo Co., Ltd.Inventors: Tatsushiro Yoshimura, Norimasa Honda, Tsutomu Terada
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Patent number: 4477523Abstract: A filled crosslinked polymeric composition of ethylene-vinyl ester copolymer which has a significant degree of flame retardancy by inclusion of a dual lubricant system which includes a fatty acid and an alkylene-bis-amide.Type: GrantFiled: September 28, 1983Date of Patent: October 16, 1984Assignee: National Distillers and Chemical CorporationInventors: James W. Biggs, Melvin F. Maringer
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Patent number: 4463118Abstract: A heat curable oil extended silicone elastomer composition and the cured silicone elastomers derived therefrom which exhibit improved melt flow and improved tear resistance at high filler loadings. A preferred composition comprises in admixture, a silarylenesiloxane polydiorganosiloxane block copolymer, a dimethylsilicone oil bearing vinyl-type unsaturation, a filler and a catalyst.Type: GrantFiled: July 16, 1981Date of Patent: July 31, 1984Assignee: General Electric CompanyInventors: Edwin R. Evans, John S. Razzano
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Patent number: 4451602Abstract: A one component room temperature setting composition having an excellent storage stability comprising a hydrolyzable silyl group-containing vinyl polymer, a hardener and a stabilizer selected from a hydrolyzable ester compound and a .beta.-diketone compound, which may further contain a pigment and a solvent. The storage stability of the composition containing the hydrolyzable silyl group-containing vinyl polymer which is crosslinkable in the presence of water to harden at room temperature, can be remarkably improved by the presence of the above stabilizer.Type: GrantFiled: July 27, 1982Date of Patent: May 29, 1984Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hisao Furukawa, Yasushi Kato
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Patent number: 4446090Abstract: A method of continuously producing blends of thermoplastic polymers and high viscosity silicone fluids is provided by injecting the silicone fluid into an extruder where the thermoplastic polymers are molten. The dispersion of the silicone fluid can be controlled by adjusting the blending temperature and blends having superior engineering properties and flame retardance produced.Type: GrantFiled: October 3, 1983Date of Patent: May 1, 1984Assignee: General Electric CompanyInventors: Eric M. Lovgren, Joseph C. Golba, Jr., Randall A. Reed
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Patent number: 4440885Abstract: An aqueous emulsion of a solid, water insoluble or limited water soluble organic peroxide is provided that has improved stability, dilutability and safety but still having an average particle size of 1.5 microns or less and a good particle size distribution. The emulsion has from about 10 weight percent of the emulsion of a solid peroxide selected from the group of hydroperoxides .alpha., -oxy and .alpha.-peroxy hydroperoxides, dialkyl peroxides, aldehyde and ketone peroxides, diacyl peroxides, peroxyesters, peroxy acids, peroxydicarbonates, monoperoxycarbonates and perketals.The emulsion also has a hydrocarbon solvent having a high kauri-butanol number if the organic peroxide has a substantial amount of aromaticity and a low kauri-butanol number if the organic peroxide has little or no aromaticity and one or more nonioic emulsifiers and at least about 20 weight percent of water.Type: GrantFiled: April 2, 1982Date of Patent: April 3, 1984Assignee: PPG Industries, Inc.Inventor: Albert E. Tamosauskas
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Patent number: 4438259Abstract: Di(vinylaryl)alkyl polysulfides and curable, low odor (vinylaryl)alkyl-terminated polysulfide copolymers having the general structure ##STR1## wherein n is an integer from about 2 to about 8, 1 and m are positive integers, each R is independently an organic polyradical with the radicals residing on carbon atoms, p is zero or a positive integer which is the difference between the number of radicals on R and 2, and each Z is independently chosen from the class consisting of (vinylaryl)alkyl and other noncrosslinking monoradicals, provided that a sufficient proportion of the Z groups are (vinylaryl)alkyl that the polymer, when cured, does not cold flow. Additionally, a method of preparing said polymers and useful adhesive, sealant and caulking compositions made therefrom are disclosed.Type: GrantFiled: September 29, 1982Date of Patent: March 20, 1984Assignee: The Dow Chemical CompanyInventors: Victor E. Meyer, Thomas E. Dergazarian
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Patent number: 4419475Abstract: A cross-link curable ethylene-propylene rubber composition with improved tensile and related properties and resistance to heat, the cured rubber composition and electrical conductors indulated with said cured rubber composition. The improved rubber composition comprises a combination of ethylene-propylene rubber, chlorosulfonated polyethylene, finyl silane, antimony oxide, peroxide and a combination of antioxidants, zinc oxide, talc and carbon black in particular proportions.Type: GrantFiled: August 3, 1981Date of Patent: December 6, 1983Assignee: General Electric CompanyInventor: Joseph E. Vostovich
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Patent number: 4417018Abstract: A flame-retardant resin composition comprising (A) at least one polymer resin selected from the group consisting of thermoplastic polyesters and thermoplastic polycarbonates and, per 100 parts by weight of the polymer resin, (B) 0.1 to 30 parts by weight, as the weight of the halogen element, of an organic halogen compound, and (C) 0.1 to 20 parts by weight, as the weight of the antimony element, of antimony trioxide treated with an alkoxysilane compound. The composition may further comprise up to 30 parts by weight of an organic acid ester compoundf and/or up to 200 parts by weight of a filler, per 100 parts by weight of the polymer resin.Type: GrantFiled: May 14, 1982Date of Patent: November 22, 1983Assignee: Teijin LimitedInventors: Yoshinari Ogawa, Noriyuki Akagi, Kenji Ikeda, Yoichi Nakamura
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Patent number: 4395507Abstract: The present invention relates to dimedone functional self-bonding room temperature vulcanizable silicone rubber compositions. The self-bond additive is selected from silyl maleates, silyl fumarates, silyl succinates, silyl isocyanurates and mixtures thereof. Preferably the self-bonding additive is prereacted with the cross-linking agent before they are incorporated into the RTV composition. This prereaction of the self-bonding additive and the cross-linking agent imparts shelf-stability to the composition.Type: GrantFiled: December 16, 1981Date of Patent: July 26, 1983Assignee: General Electric SiliconesInventors: John J. Dziark, Kazuto Shinohara
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Patent number: 4383826Abstract: Polymerizable adducts of diisocyanates and methacryloyl alkyl ethers, alkoxybenzenes, or alkoxycycloalkanes are disclosed. The compounds of the present invention are formed into compositions which are useful as bone cement, fillings for cavities, and orthodontic adhesives. The compositions have improved mechanical properties, low water absorption, and excellent color and discoloration stability, coupled with a high filler content.Type: GrantFiled: June 23, 1981Date of Patent: May 17, 1983Assignee: Blendax-Werke R.Schneider GmbH & Co.Inventors: David V. Butler, Patrick D. Kidd, Jan A. Orlowski
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Patent number: 4381362Abstract: Crosslinkable ethylene-vinyl acetate copolymer compositions containing silane-treated hydrated inorganic filler are capable of passing the CSA varnish test if an antioxidant composition comprising distearyl-3, 3' thiodiproprionate is admixed therewith.Type: GrantFiled: August 21, 1981Date of Patent: April 26, 1983Assignee: National Distillers & Chemical Corp.Inventors: James W. Biggs, Melvin F. Maringer
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Patent number: 4381361Abstract: A notched-impact-resistant polyvinyl chloride moulding composition having a low shrinkage value, based on vinylchloride polymers and impact-resistant modifiers, containing from 0.01 to 5% by weight, based on the total of vinylchloride polymer and impact-resistant modifier, of liquid polysiloxanes having viscosities of from 20 to 100,000 cSt and/or solid polysiloxanes having molecular weights of from 20,000 to 500,000 and optionally conventional additives and auxiliaries.Type: GrantFiled: October 28, 1981Date of Patent: April 26, 1983Assignee: Bayer AktiengesellschaftInventors: Dietrich K. A. Hardt, deceased, Fritz Mietzsch, Otto Billinger
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Patent number: 4375525Abstract: The present invention relates to stable and bright thermoplastic aromatic polycarbonate compositions characterized in the absence of phosphites and boric acid esters and in that they comprise an additive amount of an organic-silicon compound having on its silicon atom three or four organo-oxy radicals.Type: GrantFiled: May 12, 1980Date of Patent: March 1, 1983Assignee: Bayer AktiengesellschaftInventors: Karsten Idel, Wolfgang Cohnen, Dieter Freitag, Ottfried Schlak
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Patent number: 4368241Abstract: Alkoxysilylacrylamides, alkoxysilylacrylates and alkoxysilylbenzylidene malonates are provided and a method for making such materials. These alkoxysilanes have been found useful as UV stabilizers and as adhesion promoters when incorporated into silicone compositions useful as top coats for thermoplastic organic polymers.Type: GrantFiled: August 14, 1981Date of Patent: January 11, 1983Assignee: General Electric CompanyInventor: Ta-Yen Ching
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Patent number: 4358575Abstract: A self-bonding additive for a dimedone functional one-component RTV in which the self-bonding agent is a dialkoxydisilylether functional silane.Type: GrantFiled: December 16, 1981Date of Patent: November 9, 1982Assignee: General Electric Company Silicone Products Business DivisionInventors: Warren R. Lampe, Tyrone D. Mitchell, James A. Cella
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Patent number: 4342681Abstract: The present invention relates to polycarbonate composition characterized in the absence therefrom of phosphites and boric acid esters which compositions are made stable and bright by the incorporation of organic silicon compounds in combination with oxetane, dioxane or tetrahydrofurane compounds.Type: GrantFiled: May 12, 1980Date of Patent: August 3, 1982Assignee: Bayer AktiengesellschaftInventors: Karsten Idel, Wolfgang Cohnen, Dieter Freitag
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Patent number: 4341675Abstract: A rubber made from a blend of EPDM or EPR and a polydiorganosiloxane gum has strength, heat resistance, and adhesiveness to room-temperature, moisture-curable silicone rubber. The rubber is made from a blend of EPDM or EPR, polydiorganosiloxane gum, a polyorganosiloxane containing aliphatic hydrocarbon radicals of 4 to 20 carbon atoms, a polyoxyalkylene-organosiloxane copolymer or a poly(hydroxyalkyl)organosiloxane, and an organic peroxide.Type: GrantFiled: March 30, 1981Date of Patent: July 27, 1982Assignee: Toray Silicone Company, Ltd.Inventor: Akito Nakamura