Surfactant For Other Than Polyurethane Cellular Product Patents (Class 521/911)
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Patent number: 6417315Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.Type: GrantFiled: January 16, 2001Date of Patent: July 9, 2002Assignee: Mearthane Products CorporationInventors: Albert C. Chiang, John A. Roderick
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Patent number: 6184331Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.Type: GrantFiled: December 9, 1999Date of Patent: February 6, 2001Assignee: Mearthane Products CorporationInventors: Albert C. Chiang, John A. Roderick
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Patent number: 6111051Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.Type: GrantFiled: August 7, 1998Date of Patent: August 29, 2000Assignee: Mearthane Products CorporationInventors: Albert C. Chiang, John A. Roderick
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Patent number: 5968643Abstract: A microporous, hydrophilic polymer film has a morphology composed of distinctively interconnected pores, which are desirably surface-open. In particular aspects, the film can provide for a water vapor transmission rate (WVTR) value of at least about 1000 grams per square meter per 24 hours per mil (0.00254 cm) of film thickness. The film can exhibit a modulus of not less than about 1 MPa, and may also exhibit an elongation strain at break of at least about 100% in both its machine and transverse directions. The film can also provide for a water contact angle of not more than about 80 degrees. In other aspects, the porous film can also include other properties or characteristics, such as a desired tensile strength at break, a desired elongation-at-break, and voids or pores having distinctive shapes, sizes, distributions and configurations.Type: GrantFiled: September 16, 1997Date of Patent: October 19, 1999Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Vasily Aramovich Topolkaraev, Fu-Jya Tsai
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Patent number: 5898057Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.Type: GrantFiled: May 27, 1997Date of Patent: April 27, 1999Assignee: Mearthane Products Corp.Inventors: Albert C. Chiang, John A. Roderick
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Patent number: 5639847Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.Type: GrantFiled: May 25, 1995Date of Patent: June 17, 1997Assignee: Mearthane Products Corp.Inventors: Albert C. Chiang, John A. Roderick
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Patent number: 5439948Abstract: The invention provides a process for the preparation of a cellular polymeric product which comprises reaction of a polyisocyanate composition with an isocyanate-reactive composition having a functionality of at least 2, in the presence of a blowing agent and in the presence of an inert, organic liquid which is substantially insoluble in the reaction mixture and which is present as the disperse phase of an emulsion or a microemulsion, characterized in that the polyisocyanate composition comprises polymethylene polyphenylene polyisocyanate having a functionality of at least 2.5 and a urethane-modified, isocyanate-ended prepolymer, wherein the isocyanate functionality of the polyisocyanate composition is at least 2.3 and wherein the concentration of urethane linkages in the polyisocyanate composition is in the range from 1 millimole to 150 millimoles per 100 grams thereof.Type: GrantFiled: November 22, 1993Date of Patent: August 8, 1995Assignee: Imperial Chemical Industries PLCInventors: Rik De Vos, David Randall
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Patent number: 4563499Abstract: Polyoxyalkylene foam stabilizing surfactants can be prepared by reacting a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid under free radical polymerization conditions in the presence of a free radical initiator, and by subjecting the reaction product obtained to a solvent extraction. The isolated components can be utilized as surfactants in producing cellular foams.Type: GrantFiled: April 12, 1985Date of Patent: January 7, 1986Assignee: The Celotex CorporationInventors: Richard L. Frentzel, Ernest K. Moss
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Patent number: 4555442Abstract: Polyoxyalkylene surfactants for cellular foams can be prepared by reacting a polyoxyalkylene adduct and an esterified unsaturated dibasic acid in the presence of a free-radical initiator.Type: GrantFiled: April 11, 1985Date of Patent: November 26, 1985Assignee: The Celotex CorporationInventor: Richard L. Frentzel
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Patent number: 4520140Abstract: Polyoxyalkylene surfactants for cellular foams can be prepared by reacting a polyoxyalkylene adduct and an esterified unsaturated dibasic acid in the presence of a free-radical initiator.Type: GrantFiled: October 22, 1984Date of Patent: May 28, 1985Assignee: The Celotex CorporationInventor: Richard L. Frentzel
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Patent number: 4518719Abstract: Polyoxyalkylene surfactants for cellular foams can be prepared by reacting under free radical polymerization conditions a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid in the presence of an organic or inorganic per-compound and a metal catalyst.Type: GrantFiled: September 10, 1984Date of Patent: May 21, 1985Assignee: The Celotex CorporationInventor: Richard L. Frentzel
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Patent number: 4490489Abstract: Polyoxyalkylene surfactants for cellular foams can be prepared by reacting under free radical polymerization conditions a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid in the presence of an organic or inorganic per-compound and a metal catalyst.Type: GrantFiled: March 2, 1984Date of Patent: December 25, 1984Assignee: The Celotex CorporationInventor: Richard L. Frentzel
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Patent number: 4481307Abstract: Polyoxyalkylene surfactants for cellular foams can be prepared by reacting a polyoxyalkylene adduct and an esterified unsaturated dibasic acid in the presence of a free-radical initiator.Type: GrantFiled: October 21, 1983Date of Patent: November 6, 1984Assignee: The Celotex CorporationInventor: Richard L. Frentzel
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Patent number: 4438018Abstract: Polyoxyalkylene surfactants for cellular foams can be prepared by reacting under free radical polymerization conditions a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid in the presence of an organic or inorganic per-compound and a metal catalyst.Type: GrantFiled: November 9, 1981Date of Patent: March 20, 1984Assignee: The Celotex CorporationInventor: Richard L. Frentzel
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Patent number: 4259402Abstract: Foamed hot melt adhesives are made and employed by methods which offer significant advantages and economies. The method employs surfactant stabilizers in making hot melt adhesive foams which are very useful in bonding substrates with efficiency and superior bond strengths. Continuous and reliable foaming operations are achieved with a uniform quality and output of foamed materials. Hot melt adhesives are also capable of being foamed with relatively simple mechanical apparatus and under conditions which provide considerable savings of energy. The number of hot melts which can be foamed employing the present technique in a controlled manner is unlimited. The method of stabilization is conducted at low or ambient pressures and resulting stabilized hot melt adhesive gas dispersions may then be pumped with pressurization and dispensed with immediate foaming.Type: GrantFiled: January 25, 1979Date of Patent: March 31, 1981Assignee: Nordson CorporationInventors: Walter H. Cobbs, Jr., Robert G. Shong
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Patent number: 4174427Abstract: Expandable-polystyrene beads suitable for use in making impervious containers are made from a recipe including styrene, free-radical initiator and polyvinyl pyrrolidone, and this practice includes a step of washing the beads in a warm aqueous solution to which an alkoxylated nonionic surfactant having 70-90 percent of its molecular weight accounted for by oxyethylene units is added in an amount effective to cause the washing to remove contaminating grafted polyvinyl pyrrolidone from the surface of the beads and cause them to become expandable into impervious product containers.Type: GrantFiled: July 21, 1978Date of Patent: November 13, 1979Assignee: BASF Wyandotte CorporationInventors: Pauls Davis, Herbert H. Gahmig, Irving R. Schmolka
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Patent number: 4156754Abstract: Foamed thermoplastic materials such as coatings, adhesives and structural bodies are made by a method which offers significant advantages and economies. The method involves the steps of stabilizing a dispersion of gas in a molten thermoplastic material by adding a surfactant to the molten material in a sufficient stabilizing amount and subsequently pressurizing the stabilized dispersion to form a hot solution. Thereafter, the hot solution is dispensed under lower pressure whereby the gas is released from solution to form a foamed material. The method is especially advantageous in making hot melt thermoplastic adhesives which are very useful in bonding substrates with efficiency and superior bond strengths. Continuous and reliable foaming operations are achieved with a uniform quality and output of foamed materials. Thermoplastic materials are also capable of being foamed with relatively simple mechanical apparatus and under conditions which provide considerable savings of energy.Type: GrantFiled: April 27, 1977Date of Patent: May 29, 1979Assignee: Nordson CorporationInventors: Walter H. Cobbs, Jr., Robert G. Shong
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Patent number: 4153763Abstract: Disclosed is a process for producing expandable beads of vinyl aromatic polymer resin which provide cellular materials having a smaller and more uniform cell size, comprising the steps of suspension polymerizing beads of the vinyl aromatic polymer resin, and impregnating the beads while in suspension with a liquid blowing agent in the presence of an emulsifier comprising a diethanolamide of a fatty acid containing from 12 to 20 carbon atoms, and having a hydrophilic-lipophilic balance lower than 15.Type: GrantFiled: May 18, 1978Date of Patent: May 8, 1979Assignee: Labofina S. A.Inventor: William J. I. Bracke