Sulfur Bonded Directly To Four Oxygen Atoms Patents (Class 524/156)
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Patent number: 4801635Abstract: This invention relates to a combination of anionic and nonionic polymers and surfactants useful for the control of dust emissions into the environment. More specifically, the invention relates to novel compositions and the use of said compositions in treating particulate matter which comprises an aqueous solution of water-soluble polymers comprising a unique mixture of water-soluble anionic acrylic polymers in combination with water-soluble nonionic glycol polymers in an aqueous medium containing effective amounts of an anionic surfactant such as the sulfonates and a nonionic polyalkoxy alcohol cosurfactant.Type: GrantFiled: October 30, 1987Date of Patent: January 31, 1989Assignee: Zinkan Enterprises, Inc.Inventors: K. James Zinkan, Louis J. Koenig, Jr.
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Patent number: 4791158Abstract: Thermoplastic molding materials contain, as essential components,(A) from 10 to 89.99% by weight of a polyester,(B) from 10 to 89.99% by weight of a polycarbonate and(C.sub.1) from 0.01 to 1% by weight of a low molecular weight organic compound of not more than 70 carbon atoms which contains (--SO.sub.3).sub.m Q groups where Q is hydrogen, NH.sub.4 or an alkali or alkaline earth metal and m is an integer equal to the valency of Q, and/or(C.sub.2) from 0.01 to 30% by weight of a polymer containing sulfo groups and having a weight average molecular weight of not less than 1000,and, as a further component,(D) from 0 to 30% by weight of a rubber impact modifier.Type: GrantFiled: July 10, 1987Date of Patent: December 13, 1988Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Graham E. McKee, Christof Taubitz, Georg Wassmuth, Manfred Knoll
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Patent number: 4783279Abstract: The invention relates to a plastic mixture with electromagnetic shielding characteristics based on a matrix with a content of ferroelectrics and electrically conductive and/or ferromagnetic fillers, which is characterized in that the ferroelectric component has a Curie point or a phase transition range from the ferroelectric into the paraelectric phase covering the Curie point and which is in the range of the use temperature of -40.degree. to +98.degree. C. of the electromagnetic shielding material and, based on the electromagnetic material volume, is present in a quantity of 1 to 20 vol. %, whilst the electrically conductive or ferromagnetic fillers are present in quantitites of 5 to 15 vol. %, the ferroelectric component preferably being an organic compound selected from the group consisting of semi carbadize-hydrochloride, 3,4-dihydroxy-3-cyclobutene-1,2-dione and triglycine sulphate and the inorganic compound is from the group consisting of barium-strontium titanate and antimony iodide sulphide.Type: GrantFiled: August 4, 1987Date of Patent: November 8, 1988Assignee: Lehmann & Voss & Co.Inventors: Hans J. Petermann, Klaus Wenderoth, Wolfram H. O. Krieger
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Patent number: 4777198Abstract: A self-emulsifiable resin powder can be dispersed in water without utilizing additional surfactants or expending large amounts of mechanical energy. Such self-emulsifiable resin powders offer numerous distinct advantages over conventional latices. One of the most important benefits that is realized by utilizing self-emulsifiable resin powders is that they can be shipped dry which is the equivalent to shipping a latex with a 100 percent solids content. In other words, such self-emulsifiable resin powders eliminate the necessity for shipping water in latices. The self-emulsifiable resin powders disclosed herein also have the advantage of having low carboxyl contents and of being dispersible into aqueous systems which contain virtually no surfactants. These self-emulsifiable resins contain a relatively small proportion of repeat units which are derived from both acrylic acid and methacrylic acid.Type: GrantFiled: May 22, 1987Date of Patent: October 11, 1988Assignee: The Goodyear Tire & Rubber CompanyInventor: Mariano Salazar
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Patent number: 4769408Abstract: A medium for electrophoresis in the form of an aqueous gel comprising an acrylamide copolymer having at least one specifically selected constitutional repeating unit. This medium is preferably employable for analysis of bipolymers such as proteins.Type: GrantFiled: March 19, 1984Date of Patent: September 6, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Masashi Ogawa, Taku Nakamura
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Patent number: 4686254Abstract: This invention is directed to stable compositions comprising an anionic surfactant and a salt-stable copolymer; and to suspension compositions comprising a surfactant, a salt-stable copolymer, and normally incompatible ingredient such as an anti-dandruff agent, the polymer being used in an amount to sufficiently thicken the composition and to permanently suspend the ingredient.Type: GrantFiled: August 5, 1985Date of Patent: August 11, 1987Assignee: The B. F. Goodrich CompanyInventors: Robert Y. Lochhead, Debra S. S. Warfield
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Patent number: 4665113Abstract: The joint agglomeration of PTFE and metal-containing fillers belonging to the group comprising copper, tin and alloys thereof with one another and with other metals is improved if an alkylsulfate or an alkanesulfonate having 10 to 18 carbon atoms is added to the liquid agglomeration medium.Type: GrantFiled: April 10, 1986Date of Patent: May 12, 1987Assignee: Hoechst AktiengesellschaftInventor: Karl Eberl
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Patent number: 4661547Abstract: An antistatic material containing a base material which is rubber and/or polyvinyl cloride resin, to which are added a cationic quaternary ammonium salt and polyethylene glycol, and optionally aluminum hydroxide or calcium carbonate. The antistatic material has a low electric resistance and excellent thermal stability, and can be colored in any color.Type: GrantFiled: November 8, 1985Date of Patent: April 28, 1987Assignee: Nippon Rubber Co., Ltd.Inventors: Masasuke Harada, Kouji Tsukamoto, Tomohiro Etou
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Patent number: 4657955Abstract: The present invention relates to new phthalimides of the formula (I) ##STR1## wherein n is an integer of from 1 to 12, preferably 1 to 4 and especially 1 to 2 andR is H or F,and their preparation, these phthalimides being suitable, in combination with alkali metal salts, as flameproofing agent combinations for thermoplastic, branched, aromatic polycarbonates.Type: GrantFiled: June 11, 1986Date of Patent: April 14, 1987Assignee: Bayer AktiengesellschaftInventors: Hans-Jurgen Kress, Klaus Kircher
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Patent number: 4650826Abstract: This invention relates to stabilized adhesives, to which silyl esters are added for stabilization.Type: GrantFiled: April 8, 1985Date of Patent: March 17, 1987Assignee: Bayer AktiengesellschaftInventors: Helmut Waniczek, Wilfried Kniege
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Patent number: 4648905Abstract: Aqueous printing ink vehicle and ink compositions are disclosed, which are based on sulfated or sulfonated organic compound binders or non-ionic pigment binders.Type: GrantFiled: February 27, 1985Date of Patent: March 10, 1987Assignee: Union Camp CorporationInventors: Michael C. Peck, Dennis M. Jacobi
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Patent number: 4629663Abstract: The adhesive layer of the novel pressure-sensitive adhesive tape comprises a polymer of a terminally unsaturated vinyl monomer such as isooctyl acrylate and an emulsifier monomer such as sodium styrene sulfonate. Preferably, the adhesive layer also contains a small amount of a noncationic external emulsifier such as sodium dodecylbenzene sulfonate. Although the tape has excellent adhesive properties, it is removable from a variety of surfaces after one hour at 120.degree. C. and so is useful for purposes such as automotive masking tape.Type: GrantFiled: October 29, 1984Date of Patent: December 16, 1986Assignee: Minnesota Mining and Manufacturing CompanyInventors: Francis W. Brown, Louis E. Winslow
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Patent number: 4611019Abstract: The addition of small amounts of selected polyamides or polyesters to plasticized, melt extrudable polyvinyl alcohol homopolymer provides a composition with lower permeability to oxygen and other fixed gases.Type: GrantFiled: June 17, 1985Date of Patent: September 9, 1986Inventors: H. Harald Lutzmann, Gerald W. Miller
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Patent number: 4600655Abstract: Reduction in the adhesion to glass of thermoplastic, plasticized polyvinylbutyral molding compositions, in particular sheeting, by adding the magnesium salt of sulfonic acids or sulfuric acid half-esters or mixtures of these compounds as an non-stick agent, preferably in amounts of 0.003 to 0.3% by weight, relative to the plasticized polyvinylbutyral. The non-stick agent is preferably employed in the form of a solution in the plasticizer. The use of the sheeting having an adhesion to glass reduced in accordance with the invention as the laminating layer for the production of glass laminates.Type: GrantFiled: May 10, 1985Date of Patent: July 15, 1986Assignee: Hoechst AktiengesellschaftInventors: Hans D. Hermann, Kurt Fock, Klaus Fabian, Joachim Ebigt
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Patent number: 4584341Abstract: This invention is a method of producing a latex of crosslinked polydiorganosiloxane. The latex yields an elastomer upon removal of the water. The latex is prepared by homogenizing a mixture of hydroxyl endblocked polydiorganosiloxane, less than 75 millimoles of surface active anionic catalyst per kilogram of polydiorganosiloxane where said surface active anionic catalyst is dodecylbenzene sulfonic acid or hydrogen lauryl sulfate, and water to yield an oil-in-water emulsion. This emulsion is then admixed with from 0.5 to 15 parts by weight of an alkoxy silicon compound selected from a silane of the formula R.sub.a 'Si(OR.sup.3).sub.4-a where R' is a monovalent hydrocarbon radical of up to 12 carbon atoms, R.sup.3 is an alkyl radical of 1 to 6 carbon atoms, and a is 0 or 1, a partial hydrolyzate of the silane, or mixtures of silane and partial hydrolyzate. The resulting emulsion is maintained at a temperature of about 15.degree. to 30.degree. C.Type: GrantFiled: June 25, 1984Date of Patent: April 22, 1986Assignee: Dow Corning CorporationInventors: David J. Huebner, John C. Saam
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Patent number: 4578411Abstract: The conventional processing of rubbers into shaped articles of manufacture normally include a compounding step. In this compounding step the rubber is mixed with fillers, curatives, and various other additives so as to obtain a homogeneous mixture. The relatively high viscosity of these raw materials makes it necessary to utilize heavy machinery, such as Banbury mixtures, which consume large amounts of energy in the mixing procedure.The present invention provides an improved process for the production of tack-free, pourable, filler containing powdered rubber. This powdered rubber can be compounded eliminating in whole or in part the need for heavy equipment which consumes high amounts of energy.Type: GrantFiled: September 10, 1984Date of Patent: March 25, 1986Assignee: The Goodyear Tire & Rubber CompanyInventors: William Budd, Paul H. Sandstrom
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Patent number: 4568718Abstract: This invention is a method of producing an aqueous latex of crosslinked polydiorganosiloxane. The latex yields an elastomer upon removal of the water. The latex is prepared by homogenizing a mixture of hydroxyl endblocked polydiorganosiloxane; a silane of the formula R.sub.a 'Si(OR.sup.3).sub.4-a where R' is a monovalent hydrocarbon radical of up to 12 carbon atoms, R.sup.3 is an alkyl radical of 1 to 6 carbon atoms, a partial hydrolyzate, or mixture of silane and hydrolyzate, and a is 0 or 1; a surface active anionic catalyst of the formulae R.sup.2 C.sub.6 H.sub.4 SO.sub.3 H wherein R.sup.2 is a monovalent hydrocarbon radical of at least 6 carbon atoms, R.sup.2 OSO.sub.2 OH, or ##STR1## wherein R.sup.4 is H or R.sup.2 ; and water. The resulting emulsion is maintained at a temperature of 15.degree. to 30.degree. C. for at least 5 hours at a pH of less than 5 until a crosslinked polymer is formed, then this emulsion is admixed with base to a pH of greater than 7.Type: GrantFiled: June 25, 1984Date of Patent: February 4, 1986Assignee: Dow Corning CorporationInventors: David J. Huebner, John C. Saam
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Patent number: 4567231Abstract: This invention is a method of producing a latex of crosslinked polydiorganosiloxane reinforced with colloidal silica. The method allows the production of a latex having a relatively high amount of silica present in relation to the polymer because the water used to form the emulsion can be that present in the acidic colloidal silica sol used in the method. The high solids latex can be useful as a caulking material. The method homogenizes a hydroxyl endblocked polydiorganosiloxane, a silane of the formula R'.sub.a Si(OR.sup.3).sub.4-a where R' is a monovalent hydrocarbon radical of up to 12 carbon atoms, R.sup.3 is an alkyl radical of 1 to 6 carbon atoms, a partial hydrolyzate, or mixture of silane and hydrolyzate, and a is 0 or 1; a surface active anionic catalyst of the formulae R.sup.2 C.sub.6 H.sub.4 SO.sub.3 H wherein R.sup.2 is a monovalent hydrocarbon radical of at least 6 carbon atoms, R.sup.2 OSO.sub.2 OH, or ##STR1## wherein R.sup.4 is H or R.sup.Type: GrantFiled: June 25, 1984Date of Patent: January 28, 1986Assignee: Dow Corning CorporationInventors: David J. Huebner, John C. Saam
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Patent number: 4546137Abstract: An additive combination for improving the cold flow properties of distillate fuels comprises a combination of:(A) a distillate flow improver which is an ethylene containing polymer, preferably a copolymer of ethylene with unsaturated esters, e.g. vinyl acetate;(B) a hydrocarbon polymer of C.sub.2 to C.sub.30 olefin of number average molecular weight of 10.sup.3 to 10.sup.6 or derivatized version thereof, for example copolymers of ethylene and propylene, or polyisobutylene, which are used as lubricating oil V.I. improvers; and(C) a polar oil soluble compound which includes amides, salts, carboxylates, sulfonates, sulfates, phosphates, phenates and borates, having hydrocarbon solubilizing groups, for example salts and amides of polycarboxylic acid such as phthalic anhydride reacted with hydrogenated secondary tallow amine.Type: GrantFiled: December 20, 1982Date of Patent: October 8, 1985Assignee: Exxon Research & Engineering Co.Inventors: Albert Rossi, David H. Rehrer, Alexis A. Oswald, Kenneth Lewtas, Robert D. Tack
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Patent number: 4529758Abstract: Water-based silicone resin dispersions are provided comprising a solid organopolysiloxane resin or mixture of resins and a combination of suspending aids including hydroxy-, alkoxy-, or neutralized carboxy polymeric type and non-ionic and/or anionic surfactant as well as an amount of water sufficient for providing a water-based suspension having a desired viscosity and silicone resin solids content by weight, and resistant to settling on prolonged standing.Type: GrantFiled: May 5, 1983Date of Patent: July 16, 1985Assignee: General Electric CompanyInventor: Frank J. Traver
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Patent number: 4525510Abstract: A thermosetting latex coating composition is disclosed and comprises a copolymer of monoethylenically unsaturated monomers copolymerized in aqueous emulsion in the presence of an anionic surfactant and about 1% to about 25% of a liquid water-insoluble polyhydric alcohol. The monomers include at least about 80% of nonreactive monomers and from about 0.5% to about 10% of a monomer carrying a reactive group capable of reacting with the hydroxy groups present when the latex is deposited and dried.Type: GrantFiled: February 17, 1981Date of Patent: June 25, 1985Assignee: DeSoto, Inc.Inventors: Kazys Sekmakas, Raj Shah
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Patent number: 4496687Abstract: The invention provides a novel organopolysiloxane-containing aqueous emulsion composition which, upon removal of water by drying at room temperature, can give a cured rubbery elastomer having excellent mechanical properties and exhibiting strong adhesion to the substrate on which it has been cured. The inventive composition is prepared by blending (A) an aqueous emulsion of an organopolysiloxane having silicon-bonded hydroxy groups and emulsified in water by use of an anionic surface active agent, (B) a mixture of a reaction product of a carboxylic acid anhydride with an amino-functional organosilane and a colloidal silica in the form of an aqueous suspension and (C) a curing catalyst in limited proportions.Type: GrantFiled: January 27, 1984Date of Patent: January 29, 1985Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Fumio Okada, Toshio Oba, Morizo Nakazato
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Patent number: 4486562Abstract: A process is provided for preparing a vulcanized carbon black-reinforced chloro- or bromobutyl rubber film comprising admixing a polyfunctional amine vulcanization system with a carbon black-reinforced chloro- or bromobutyl rubber latex containing one or more selected emulsifiers, forming a film from the resulting mixture, drying said film and heating the dried film to provide the vulcanized film. The process may be used in the manufacture of coatings, dipped goods and chemical resistant impermeable treated fabrics.Type: GrantFiled: March 16, 1984Date of Patent: December 4, 1984Assignee: Polysar LimitedInventors: Erhardt Fischer, Douglas C. Edwards
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Patent number: 4481314Abstract: Disclosed are novel anthraquinone compounds containing tetra-p-phenylenediamine substituents, particularly useful in molding type polyester compositions and possessing strong infrared absorptivity. This property renders these compounds attractive as additives for increasing the infrared energy absorptivity of polyesters either from high intensity quartz lamps or from certain laser systems. These compounds are particularly useful in bottle polyester material for increasing the blow-mold parison reheat rate, and in the printing of plastic articles with lasers.Type: GrantFiled: June 29, 1983Date of Patent: November 6, 1984Assignee: Eastman Kodak CompanyInventor: Mark Rule
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Patent number: 4477617Abstract: Blends of hydrocarbon polyolefin, reinforcing fiber, acid copolymer of .alpha.-olefin and .alpha.,.beta.-ethylenically unsaturated carboxylic acid and wetting agent are provided wherein the acid copolymer has from 0 to about 90 percent of the acid groups ionized by neutralization with metal ions. Such blends have excellent Izod impact values and fast molding cycles and as such are particularly suitable as molding resins.Type: GrantFiled: July 21, 1982Date of Patent: October 16, 1984Assignee: E. I. DuPont de Nemours and CompanyInventor: Charles V. Murphy
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Patent number: 4440895Abstract: Synthetic rubber dispersions containing carboxyl groups, free from specks and with little tendency to foaming, with advantages for their technical application contain a copolymer of 0.3 to 1.0 parts by weight of itaconic acid and 99.0 to 99.7 parts by weight of a mixture of 10 to 90 parts by weight of one or more acyclic conjugated dienes having 4 to 9 carbon atoms and 10 to 90 parts by weight of one or more aryl vinyl monomers having 8 to 12 carbon atoms and/or (meth)acrylonitrile, in which the quantity of (meth)acrylonitrile is at most 50 parts by weight and wherein up to 25 parts by weight of the non-dissociating monomers may optionally be replaced by one or more other non-dissociating copolymerizable monomers, which dispersions are stabilized with 0.05 to 0.5% by weight, based on the copolymer, of an anionic emulsifier.Type: GrantFiled: December 4, 1981Date of Patent: April 3, 1984Assignee: Bayer AktiengesellschaftInventors: Ferdinand Heins, Martin Matner, Hellmut Striegler
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Patent number: 4426490Abstract: A method of polymerizing silanol-containing organosilicon compounds is provided. Catalysts comprising dioctyl tin dineodeconate lend a unique combination of properties to curable silicone paper release coatings including long bath life, storage stability, low odor, reactivity over a wide temperature range and low release.Type: GrantFiled: March 10, 1982Date of Patent: January 17, 1984Assignee: General Electric Co.Inventors: Anthony J. Dallavia, Jr., Gordon T. Van Vleck, Frank J. Traver
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Patent number: 4417016Abstract: An improved frothing aid composition for use in combination with sodium polyacrylate viscosity regulator which consists about 70 to 99% by weight of a surfactant and from about 1 to 30% by weight of a thickener comprising a copolymer of acrylic or methacrylic acid with at least one copolymerizable monomer selected from the group consisting of alkyl acrylates or methacrylates having up to 6 carbons in the alkyl, vinylidene aromatic monomers and aliphatic conjugated diene monomers of 4-10 carbon atoms.Type: GrantFiled: February 19, 1982Date of Patent: November 22, 1983Assignee: Para-Chem Southern, Inc.Inventors: Charles D. Cline, Thomas L. Mills
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Patent number: 4397974Abstract: The present invention relates to low-halogen-content, thermoplastically-processible polyurethane elastomers (TPU), to which are added antimony trioxide, chlorinated and/or brominated aromatic compounds having a specified halogen content, aluminum hydroxide having a specified particle size, phosphoric acid tris-ester, and, optionally, quaternary tetra-alkyl ammonium salts. These additives impart an unexpectedly favorable combination of electrical surface properties, flameproof behavior and abrasion resistance.Type: GrantFiled: March 29, 1982Date of Patent: August 9, 1983Assignee: Bayer AktiengesellschaftInventors: Wilhelm Goyert, Wolfgang Fleige, Hans-Georg Hoppe, Hans Wagner
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Patent number: 4395497Abstract: A process for the preparation of electrically conductive heteropolyphenylenes, wherein from 0.5 to 5 per cent by weight of an activating additive is introduced, in the absence of moisture and of oxygen, into a heteropolyphenylene of the general formula ##STR1## where X is O, S, Se, SO or SO.sub.2 and Y has one of the meanings given for X or is NH, CH.sub.2, CO or C.sub.6 H.sub.4, and n is from 2 to 250. The activating additive is preferably one of the compounds AsF.sub.5, SbF.sub.5, UF.sub.6, HClO.sub.4, NO.sup.+ SbF.sub.6.sup.-, NO.sub.2.sup.+ SbF.sub.6.sup.-, NO.sup.+ PF.sub.6.sup.-, SbCl.sub.5, NO.sub.2.sup.+ PF.sub.6.sup.-, NO.sup.+ BF.sub.4.sup.-, NO.sup.+ ClO.sub.4.sup.-, (CF.sub.3).sub.2 SO.sub.4, 2,4,6-trinitrophenol, 2,4,6-trinitrophenylsulfonic acid and 2,4,6-trinitrophenylcarboxylic acid, or is sodium, potassium, rubidium, cesium, calcium or barium or one of their amides, the latter being added, if appropriate, in tetrahydrofuran, dimethoxyglycol, anthracene, naphthalene or 2-methylstyrene.Type: GrantFiled: June 15, 1981Date of Patent: July 26, 1983Assignee: BASF AktiengesellschaftInventors: Herbert Naarmann, Dieter Naegele, Klaus Penzien, Johannes Schlag
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Patent number: 4386183Abstract: Polyvinyl alcohol based release coating compositions for strippable substrates which are in contact with pressure sensitive adhesives are disclosed. Substrates coated with the release compositions are easily peeled from pressure sensitive adhesive coated substrates without substantially adversely affecting the adhesive character of the adhesive coated substrate. The release coating composition comprises polyvinyl alcohol, a migratable release promoting agent, a water soluble salt of a coordinating metal and a water soluble boron compound in an aqueous solution. In addition to composites comprising release coated substrates affixed to adhesive coated substrates, the release compositions can be applied to the backing of a pressure sensitive adhesive tape to permit facile uncoiling of the rolled tape product.Type: GrantFiled: April 16, 1981Date of Patent: May 31, 1983Assignee: Air Products and Chemicals, Inc.Inventor: Lawrence K. Wempe
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Patent number: 4383063Abstract: Polyvinyl alcohol based sizing solution containing a small amount of quaternary (e.g., dialkyldimethyl) ammonium salt or quaternary imidazolinium salt additives provide good operability during application and weaving and results in fabric having improved finishing performance.Type: GrantFiled: April 9, 1981Date of Patent: May 10, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventor: Richard W. Rees
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Patent number: 4375497Abstract: There is disclosed a process for the production of tack-free, pourable, filler containing elastomer powder which comprises(a) dispersing a carbon black filler in water;(b) mixing the thus dispersed carbon black filler with an elastomer latex;(c) coagulating the thus produced mixture of elastomer latex and carbon black with an acid/alum solution;(d) partitioning the thus coagulated suspension with a coating resin; and(e) filtering, washing and drying of the resultant powder, the improvement comprising using as a coating resin a mixture of a styrene/butadiene resin and a styrene/.alpha.-methylstyrene or a polystyrene resin wherein the weight ratio of the styrene/butadiene resin to the styrene/.alpha.Type: GrantFiled: August 27, 1981Date of Patent: March 1, 1983Assignee: The Goodyear Tire & Rubber CompanyInventor: Paul H. Sandstrom
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Patent number: 4359538Abstract: Disclosed is a self-extinguishing polystyrenic composition comprising a polystyrenic resin, a fire-retardant amount of a halogenated organic fire-retardant agent and a nitrogen-containing organic compound selected from the group consisting of amines, amides and ammonium compounds containing from 20 to 40 carbon atoms and their mixtures, said nitrogen-containing compound being used in an amount varying between 0.5 and 50% based on the weight of fire-retardant agent.Type: GrantFiled: April 20, 1981Date of Patent: November 16, 1982Assignee: Labofina, S.A.Inventor: Jean-Noel Marie Bertrand
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Patent number: 4345040Abstract: The invention relates to porous post-chlorinated polyvinyl chloride resins which contain or have incorporated therein a salt of phosphoric acid resulting in a substantial improvement in the thermal stability thereof during subsequent processing. The phosphate salt is added to the porous post chlorinated polymer from an aqueous solution thereof which optionally contains a surfactant, which wets the polymer particles and allows the penetration thereof by the solution. Post chlorinated polyvinyl chloride (CPVC) is the most preferred polymer or resin.Type: GrantFiled: June 16, 1980Date of Patent: August 17, 1982Assignee: The B. F. Goodrich CompanyInventor: Dale R. Hall
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Patent number: 4341674Abstract: An improved aqueous composition for impregnating multifilament glass strand comprises emulsified polybutadiene homopolymer, butadiene-styrene-vinylpyridine terpolymer, resorcinol-formaldehyde resin, emulsified wax, a thickening agent and a defoaming agent with the homopolymer and the terpolymer emulsified with a synthetic anionic surfactant having sulfate, sulfonate or sulfosuccinate groups.Type: GrantFiled: December 1, 1980Date of Patent: July 27, 1982Assignee: Owens-Corning Fiberglas CorporationInventors: Donn R. Vermilion, Donald J. Hammond
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Patent number: 4340431Abstract: A method for transferring an organic pigment from an aqueous pulp of the pigment to a water-immiscible organic vehicle. This method comprising mixing the aqueous pulp and vehicle with a petroleum sulfonate flushing aid and at least one flushing aid selected from the class consisting of sulfonated sperm oil, sulfated sperm oil, and mixtures thereof until a major portion of the water present in said pulp separates.Type: GrantFiled: November 10, 1980Date of Patent: July 20, 1982Assignee: BASF Wyandotte CorporationInventors: Manohar L. Arora, Timothy A. Overway, Thomas E. Foye
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Patent number: 4338425Abstract: The invention disclosed herein provides a process for preparing a diene-containing synthetic rubber having improved green strength which includes the steps of charging a reaction vessel with water, an emulsifier, an initiator, an N-(alkoxymethyl)acrylamide monomer and a monomer containing a vinyl group, purging the vessel with an inert gas, charging a diene monomer and an activator to the vessel, polymerizing the monomers to form a copolymer; and, thereafter extracting the copolymer from the vessel and any unreacted monomers. A styrene-butadiene composition containing up to about 10 percent by weight of N-(isobutoxymethyl)acrylamide exhibits better stress-strain properties than a comparable styrene-butadiene rubber without the acrylamide compound.Type: GrantFiled: March 24, 1980Date of Patent: July 6, 1982Assignee: The Firestone Tire & Rubber CompanyInventors: David J. Dougherty, Binnur Gunesin, John W. Spiewak
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Patent number: 4323495Abstract: Novel branched-chain monoalcohols and derivatives thereof are disclosed. Such derivatives are selected from the group consisting of(a) esters of aromatic, aliphatic or cycloaliphatic acids having at least 2 carbon atoms and 1, 2 or 3 carboxyl groups;(b) urethanes of aromatic, aliphatic or cycloaliphatic isocyanates;(c) monoethers of polyalkylene oxide glycols having 2 to 50 alkylene oxide units each containing 2 or 3 carbon atoms and the alkylpolyoxyalkylene sulfates derived therefrom;(d) sulfates.The branched-chain monoalcohols are obtained by reduction of branched-chain monocarboxylic acids or esters thereof. Said acids are telomeric acids obtained by the free radical addition of 1 mole of acetic anhydride to at least three moles of hexene and/or higher olefins containing up to 30 or more carbon atoms (C.sub.30+) in the presence of a trivalent manganese compound. The products of this invention are suitable for use in engine lubricating oils, lubricant compositions for polymers and wax compositions.Type: GrantFiled: October 26, 1979Date of Patent: April 6, 1982Assignee: Akzona IncorporatedInventors: Jacobus J. Zeilstra, Willem J. de Klein, Joannes D. Bik
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Patent number: 4322323Abstract: An erodible device is disclosed for delivering an agent to an environment of use. The device comprises (1) a structure sized and adapted for placement in an environment of use, the structure comprising a poly(orthoester) or a poly(orthocarbonate) having a repeating mer consisting of hydrocarbon radical and a symmetrical dioxycarbon unit of the general formula: ##STR1## wherein R.sub.1 is a multivalent hydrocarbon radical, R.sub.2 and R.sub.3 are hydrocarbon radicals with at least one of R.sub.2 or R.sub.3 bonded to the dioxycarbon through an oxygen covalent bond, (2) a beneficial agent, and (3) a surfactant erosion rate modifier. The devices are useful for delivering numerous agents to many environments. A composition also is disclosed comprising a poly(orthoester) or a poly(orthocarbonate), and a surfactant.Type: GrantFiled: December 1, 1980Date of Patent: March 30, 1982Assignee: ALZA CorporationInventor: Richard C. Capozza
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Patent number: 4320046Abstract: Ethylene or propylene polymers are dyed by dispersing a small quantity of a copolymer of a C-14 or higher alpha-olefin and maleic anhydride therein and subsequently treating the composition with an aqueous solution of a basic dye stuff such as Malachite Green.Type: GrantFiled: September 15, 1980Date of Patent: March 16, 1982Assignee: Gulf Oil CorporationInventor: Richard H. Havens