Organic Metal Compound Contains A Group I Or Group Ii Metal Atom Patents (Class 521/125)
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Patent number: 6653362Abstract: A process for producing a flexible polyurethane foam satisfying low resilience, high vibration absorption and high durability, is presented. A mixture comprising from 95 to 50 mass % of a polyoxyalkylene polyol produced by means of an alkali metal catalyst and from 5 to 50 mass % of a polyoxyalkylene polyol produced by means of a double metal cyanide complex catalyst, is reacted with a polyisocyanate compound in the presence of a catalyst and a blowing agent, to produce a flexible polyurethane foam having a resonance frequency of at most 3.7 Hz, a resonance ratio of at most 3.5 and an impact resilience of at most 70%.Type: GrantFiled: October 8, 2002Date of Patent: November 25, 2003Assignee: Asahi Glass Company, LimitedInventors: Yoshinori Toyota, Hiroshi Wada, Takayuki Sasaki, Akio Horie, Kayoko Sugiyama, Hiromitsu Takeyasu
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Patent number: 6590057Abstract: The invention provides polyurethane elastomers (PU elastomers), a process for their production using special catalyst mixtures and their use in particular for the manufacture of shoe soles.Type: GrantFiled: August 27, 2002Date of Patent: July 8, 2003Assignee: Bayer AktiengesellschaftInventors: Klaus Brecht, Wolfgang Grimm, Stephan Schleiermacher, Marc Schütze
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Patent number: 6586486Abstract: Low-density hydrophilic flexible polyurethane foams are prepared by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if required, further compounds (c) having hydrogen atoms reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and, if required, further assistants and additives (f), by a process in which the polyetherol mixture (b) consists of b1) at least one difunctional or polyfunctional polyetherol based on propylene oxide and/or butylene oxide and ethylene oxide, having an ethylene oxide content of more than 40% by weight, based on the total amount of alkylene oxide used, an OH number of from 20 to 120 mg KOH/g and a proportion of primary OH groups of more than 20% and b2) at least one difunctional or polyfunctional polyetherol based on propylene oxide and/or butylene oxide and, if required, ethylene oxide, the ethylene oxide content being not more than 40% by weight, and having an OH number of more than 25 mType: GrantFiled: January 15, 2002Date of Patent: July 1, 2003Assignee: BASF AktiengesellschaftInventors: Peter Falke, Heinz-Dieter Lutter, Michael J. Pcolinski
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Patent number: 6576682Abstract: The invention relates to a process for preparing polyurethane foams (PUR foams) which uses reactive amines of the formula where n is 1 to 4, R1 and R2 are —(CH2—CH2—O)xH, —(CH2—CH(CH3)—O)xH, or —((CH2—CH(CH2—CH3)—O)xH, and x is 0, 1, 2, 3 or 4, with the proviso that, at least one of the indices in the molecule is greater than 0, in combination with metal salts.Type: GrantFiled: June 18, 2001Date of Patent: June 10, 2003Assignee: Goldschmidt AGInventors: Oliver Eyrisch, Ralf Hoffmann, Hans-Heinrich Schlöns
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Patent number: 6555591Abstract: The present invention has its object to provide a foam outstanding in electrification and heat insulating and sound insulating properties and has high compressive strength even when it has low density. The present invention relates to a foam comprising an organic polymer expanded matrix (I) and at least one kind of inorganic substance (II) selected from the group consisting of metals, metal compounds and non-metal inorganic fillers, wherein said expanded matrix (I) contains metal salt-crosslinks and the relation between the weight percentage (M) of the metal forming said metal salt-crosslinks in the expanded matrix (I) based on the total weight of the expanded matrix (I) and the inorganic substance (II) and the weight percentage (S) of the inorganic substance (II) based on the total weight of the expanded matrix (I) and the inorganic substance (II) satisfies the following expression. M≧10−S/4 (1) wherein M≦50 and S≧5.Type: GrantFiled: October 15, 1999Date of Patent: April 29, 2003Assignee: Sanyo Chemical Industries, Ltd.Inventors: Tsuyoshi Tomosada, Kimihiko Noda, Satoshi Sasaki, Hideo Nishiguchi, Hideyuki Nishida
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Patent number: 6528551Abstract: A process for manufacturing composite thermal insulating systems using an organic adhesive or filler material serving as an adhesive for insulating boards to be attached to a facade or as a filler material for evening out facade unevenness prior to attaching the insulating boards or for producing a reinforcing layer on the attached insulating boards. The adhesive or filler material is foamed prior to its use.Type: GrantFiled: March 23, 2000Date of Patent: March 4, 2003Assignee: Sto AgInventor: Peter Grochal
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Patent number: 6506812Abstract: A thermosetting plastic foam solid formed from the reaction product of: (a) either polyisocyanate or isocyanate-based foam; (b) a polyol-based foam; (c) a catalyst which is capable of promoting the thermosetting reaction between the polyisocyanate or isocyanate-based foam and the polyol-based foam; and (d) a blowing agent which comprises a high purity cyclopentane product, wherein the high purity cyclopentane product is about 95% or greater pure cyclopentane, and, optionally, (e) water and/or (f) liquid flame retardant.Type: GrantFiled: July 24, 2001Date of Patent: January 14, 2003Assignee: Exxon Mobil Chemical Patents IncInventors: Robert H. Blanpied, James Darryl Thornsberry, Steven E. Silverberg, James R. Lattner, C. Harry McMullen, Leonel E. Sanchez, Tronze-I Dennis Wu
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Patent number: 6458859Abstract: By blending acicular conductive titanium oxide and an antistatic agent having a metal ion-containing moiety in an organopolysiloxane having at least two aliphatic unsaturated groups, there is obtained a silicone rubber composition which is curable with an organic peroxide and/or an organohydrogenpolysiloxane/platinum group catalyst. The composition cures into silicone rubber having a stabilized resistivity in the semiconductive region, especially in the range of 1×103 to 1×1012 &OHgr;-cm, even under high voltages. The composition is thus suitable as a semiconductive roll material for use as charging rolls, transfer rolls and developing rolls.Type: GrantFiled: December 8, 2000Date of Patent: October 1, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Osamu Hayashida, Tsutomu Nakamura
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Publication number: 20020120021Abstract: A process for manufacturing composite thermal insulating systems using an organic adhesive or filler material serving as an adhesive for insulating boards to be attached to a facade or as a filler material for evening out facade unevenness prior to attaching the insulating boards or for producing a reinforcing layer on the attached insulating boards. The adhesive or filler material is foamed prior to its use.Type: ApplicationFiled: March 23, 2000Publication date: August 29, 2002Inventor: Peter Grochal
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Patent number: 6403664Abstract: The invention relates to the combined use of metal salts of ricinoleic acid with reactive amines in the preparation of polyurethane foams (PUR foams) and of their solutions in aqueous or organic solvents in the preparation of polyurethane foams in combination with reactive amines.Type: GrantFiled: June 18, 2001Date of Patent: June 11, 2002Assignee: Goldschmidt AGInventors: Ralf Hoffmann, Hans-Heinrich Schlöns
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Patent number: 6399668Abstract: A gelling material is composed of water-absorbent resin 12 wrapped in a bag composed of two laminated water-soluble sheets 1.1, the water-absorbent resin being prepared so as to enable the bag to be disintegrated by an inner pressure generated when an expanded volume of the water-absorbent resin by absorbing water through the bag exceeds a maximum volume capacity. When the gelling material is added to the aqueous fluid, the water-absorbent resin 12 is spread in the aqueous fluid at a stroke, and is diffused uniformly. Thus, the water-absorbent resin 12 is brought fully in contact with the aqueous fluid. Since this enables the aqueous fluid to be gelled in a short period of time, the aqueous fluid can be processed speedily. Even the aqueous fluids, which are difficult to be handled by the conventional gelling material, can be gelled conveniently in a short period of time, and the resulting gell can be easily handled, thereby enabling an easy disposal of the aqueous fluids, i.e., the gell.Type: GrantFiled: July 9, 1998Date of Patent: June 4, 2002Assignee: Nippon Shokubai Co., Ltd.Inventors: Koji Miyake, Nobuyuki Harada, Hiroshi Odanaka
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Patent number: 6355701Abstract: A process for manufacturing an insulation board comprising a rigid polyisocyanurate foam core having two major surfaces and a facing material on at least one of the major surfaces, comprising (a) conveying a facing material along a production line for attachment to one major surface of the core; (b) applying a foam-forming mixture of polyisocyanurate to the facing material such that the mixture is applied along the entire width of the facing material; (c) optionally conveying a second facing material along the production line for attachment to the other major surface of the core; (d) conveying the facing material with applied foam-forming mixture into a laminator which comprises a gap for foam expansion and allowing the mixture to foam and expand to fill the gap within the laminator; and (e) curing the foam. The process provides excellent boardstock thickness control, minimal wasted densification at the foam/facer interface, greater compressive strength and high line speed.Type: GrantFiled: January 21, 2000Date of Patent: March 12, 2002Assignee: Johns Manville International, Inc.Inventors: Thomas G. Soukup, Steven G. Halterbaum
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Publication number: 20020025989Abstract: The invention relates to the combined use of metal salts of ricinoleic acid with reactive amines in the preparation of polyurethane foams (PUR foams) and of their solutions in aqueous or organic solvents in the preparation of polyurethane foams in combination with reactive amines.Type: ApplicationFiled: June 18, 2001Publication date: February 28, 2002Inventors: Ralf Hoffmann, Hans-Heinrich Schlons
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Publication number: 20020016376Abstract: The invention relates to a process for preparing polyurethane foams (PUR foams) which uses reactive amines of the formula 1Type: ApplicationFiled: June 18, 2001Publication date: February 7, 2002Inventors: Oliver Eyrisch, Ralf Hoffman, Hans-Heinrich Schlons
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Patent number: 6337354Abstract: An ink wastage absorber is made from a flexible polyurethane foam having an air-permeability of 1.0 cc/cm2/sec or more, or is made from a flexible polyurethane foam produced by using a foamable raw material containing a polyol, an isocyanate, a catalyst, and a foaming agent, wherein the polyurethane foam is impregnated with a surface active agent. An ink supporter includes an ink permeation member provided at a portion corresponding to a printer head and an ink absorbing member being in contact with the ink permeation member.Type: GrantFiled: August 2, 2000Date of Patent: January 8, 2002Assignee: Bridgestone CorporationInventors: Yoshihiro Katsumata, Hideya Kinoshita
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Patent number: 6294589Abstract: A polyurethane composition for fabricating antimicrobial based products such as polyurethane foam carpet backing materials and carpets having a polyurethane foam carpet backing material. The polyurethane composition includes a plurality of particles comprising an antimicrobial agent which are at least partially encapsulated by a plasticizer material before being dispersed within a polyurethane.Type: GrantFiled: May 12, 2000Date of Patent: September 25, 2001Assignee: Shaw Industries, Inc.Inventor: Von L. Moody
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Patent number: 6271278Abstract: A superporous hydrogel composite is formed by polymerizing one or more ethylenically-unsaturated monomers, and a multiolefinic crosslinking agent, in the presence of particles of a disintegrant and a blowing agent. The disintegrant, which rapidly absorbs water, serves to greatly increase the mechanical strength of the superporous hydrogel and significantly shorten the time required to absorb water and swell. Superporous hydrogel composites prepared by this method have an average pore size in the range of 10 &mgr;m to 3,000 &mgr;m. Preferred particles of disintegrant include natural and synthetic charged polymers, such as crosslinked sodium carboxymethylcellulose, crosslinked sodium starch glycolate, and crosslinked polyvinylpyrrolidone. The blowing agent is preferably a compound that releases gas bubbles upon acidification, such as NaHCO3. Improved hydrogel composites formed without a blowing agent are also provided.Type: GrantFiled: May 13, 1997Date of Patent: August 7, 2001Assignee: Purdue Research FoundationInventors: Kinam Park, Jun Chen, Haesun Park
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Patent number: 6211257Abstract: Disclosed are methods and compositions for preparing polyurethane foams using emulsified polyol mixture comprising (a) a polyol formulation comprising a polyester polyol having an OH value of from about 150 to 350; and (b) a cell opening agent.Type: GrantFiled: May 15, 2000Date of Patent: April 3, 2001Assignee: Stepan CompanyInventors: Warren Kaplan, Paul Neill
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Patent number: 6194475Abstract: The invention relates to the use of metal salts of ricinoleic acid or solutions thereof in water or in organic solvents in producing polyurethane foams.Type: GrantFiled: December 16, 1999Date of Patent: February 27, 2001Assignee: Goldschmidt AGInventors: Tammo Boinowitz, Georg Burkhart, Ralf Hoffmann, Felix Müller, Hans-Heinrich Schlöns, Andreas Weier, Volker Zellmer, Rainer Ziegler
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Patent number: 6066682Abstract: A foam comprising a metal salt-crosslinked cellular (co)polymer (A) obtained by polymerizing a monomer charge comprising an .alpha., .beta.-unsaturated carboxylic acid and optionally one or more other vinyl monomers, wherein at least part of said monomer charge is concurrently foamed and polymerized in the presence of a metal salt of carbonic acid, and processes for producing them. Low-density foams that are benign to the environment and can be easily produced can be provided.Type: GrantFiled: December 26, 1996Date of Patent: May 23, 2000Assignee: Sanyo Chemical Industries, Ltd.Inventors: Kimihiko Noda, Satoshi Sasaki, Tsuyoshi Tomosada
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Patent number: 6066681Abstract: Disclosed are methods and compositions for preparing polyurethane foams using emulsified polyol mixture comprising: (a) a polyol formulation comprising a polyester polyol having an OH value of from about 150 to 350; and (b) a cell opening agent.Type: GrantFiled: April 14, 1998Date of Patent: May 23, 2000Assignee: Stepan CompanyInventors: Warren Kaplan, Paul Neill
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Patent number: 6057416Abstract: Increases in reactivity of acidic containing RIM systems are reduced by inclusion of a catalyst system of a zinc-containing compound, a non-zinc containing metal compound and a tertiary amine.Type: GrantFiled: November 7, 1994Date of Patent: May 2, 2000Assignee: Bayer CorporationInventors: Neil H. Nodelman, Albert Magnotta, Robert Loring
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Patent number: 6046298Abstract: A process for producing a polyurethane resin having an extended gel time by reacting a polyol component with a polyisocyanate in an NCO:OH ratio of from 10:1 to 1:10 wherein the polyol component contains from 0.1% to 100% by weight of a randomized castor oil prepared by heating castor oil for between about 0.1 and 15 hours at a temperature of between about 100.degree. C. and 280.degree. C. in the presence of a basic lithium salt.Type: GrantFiled: September 15, 1998Date of Patent: April 4, 2000Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Bernd Beuer, Roland Gruetzmacher, Andreas Heidbreder, Johann Klein
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Patent number: 6010565Abstract: This invention relates to a foamed material for fireproofing and/or insulating purposes, consisting of 30 to 90 parts by weight of a solution that contains 20 to 70 wt-% Al (H.sub.2 PO.sub.4).sub.3 and 30 to 80 wt-% water, 5 to 55 parts by weight of a mixture that contains 10 to 70 wt-% MgO, 0 to 70 wt-% mica, 0 to 70 wt-% aluminium hydroxide and 1 to 20 wt-% MnO.sub.2, as well as 1 to 30 parts by weight of a foaming agent that contains 3 to 33 wt-% H.sub.2 O.sub.2 and 67 to 97 wt-% water. In accordance with the invention, the term "insulating purposes" refers to the use of the inventive foamed material for heat and sound insulation.Type: GrantFiled: March 2, 1999Date of Patent: January 4, 2000Assignee: Metallgesellschaft AktiengesellschaftInventors: Wolfgang Bastian, Horst Kempf, Jorg Lind, Thomas Schmidt-Hansberg
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Patent number: 5998494Abstract: Process for the preparation of rigid open celled polyurethane foams comprising the step of reacting an organic polyisocyanate with an isocyanate-reactive material in the presence of a blowing promotor which is an isocyanate-reactive cyclic carbonate or cyclic urea, and in the presence of an aminoalcohol catalyst.Type: GrantFiled: May 27, 1998Date of Patent: December 7, 1999Assignee: Imperial Chemical Industries PLCInventor: Alan James Hamilton
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Patent number: 5990184Abstract: Process for making polyisocyanate based aerogels by trimerisation of an organic polyisocyanate in an organic solvent in the presence of a (co)polymer containing an isocyanate-reactive group, gellation and supercritically drying of the obtained sol-gel.Type: GrantFiled: March 31, 1998Date of Patent: November 23, 1999Assignee: Imperial Chemical Industries PLCInventor: Guy Leon Jean Ghislain Biesmans
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Patent number: 5962142Abstract: A small amount of a non-yellowing surface-forming polyurethane material containing a polyether polyol, a hexamethylene diisocyanate trimer, a coloring agent and an organic bismuth catalyst is initially injected into a mold cavity under reduced pressure to form e.g. the surface portion of a polyurethane covering for a steering wheel. An inner-forming polyurethane material is subsequently injected into the cavity under reduced pressure to form an inner portion of the covering.Type: GrantFiled: March 25, 1997Date of Patent: October 5, 1999Assignee: Toyoda Gosei Co., Ltd.Inventors: Katsumi Tachi, Toshihiko Asaya, Satoru Ono, Hisashi Mizuno
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Patent number: 5958990Abstract: A method for making a rigid polyurethane/polyisocyanurate foam by reacting a polyisocyanate and a polyol in the presence of a trimerization catalyst and a urethane catalyst, a blowing agent and a silicone surfactant characterized by employing as the trimerization catalyst a compound of the following formula:B.sup.+ - O.sub.2 C--X--C(O)--NR--R.sup.1where X is the residue of an organic acid anhydride; R is hydrogen or a C1-C4 alkyl group; R.sup.1 is a C1-C4 alkyl or a phenyl group or Y--NR.sup.2 R.sup.3, where Y is a C2-C6 alkylene group which may contain heteroatoms and R.sup.2 and R.sup.3, which may be the same or different, are C1-C20 alkyl groups which may contain oxygen atoms or which together with the tertiary nitrogen form a 5 or 6 member ring which may contain oxygen atoms; and B is an alkali metal ion or a substituted or unsubstituted quaternary ammonium ion.Type: GrantFiled: November 23, 1998Date of Patent: September 28, 1999Assignee: Air Products and Chemicals, Inc.Inventor: Jobst Grimminger
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Patent number: 5945461Abstract: Foamed in place polymer compositions are made from monomer-in-polymer solutions containing free radical polymerization catalysts and foaming agents.Type: GrantFiled: March 21, 1991Date of Patent: August 31, 1999Assignee: Illinois Tool Works Inc.Inventors: Donald E. Gosiewski, Paul C. Briggs
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Patent number: 5928459Abstract: Polymethacrylimide foams are prepared by a method, comprising:preparing a mixture consisting of(a) a monomer mixture of 40-60 wt. % methacrylonitrile, 60-40 wt. % methacrylic acid, and, optionally, up to 20 wt. %, based on the sum of methacrylic acid and methacrylonitrile, of other monofunctional, vinyl-unsaturated monomers,(b) 0.5-8 wt. % of a propellant mixture of formamide or monomethyl formamide and a univalent C.sub.3-8 -aliphatic alcohol,(c) a cross-linking agent system, which consists of(c.1) 0.005-5 wt. % of a vinyl-unsaturated compound which can be radically polymerized, with at least two double bonds in the molecule, and(c.2) 1-5 wt. % magnesium oxide, dissolved in the monomer mixture, and at least one radical initiators and optionally at least one additive, shaped in the form of a sheet;polymerizing the monomers in the sheet;subsequently foaming the polymerizate sheet at temperatures from 200-260.degree. C.; and thenheat treating the sheet in two steps, at a first step of 2-6 hours at 100-130.Type: GrantFiled: April 27, 1998Date of Patent: July 27, 1999Assignee: Roehm GmbH Chemische FabrikInventors: Werner Geyer, Hermann Seibert, Sabine Servaty
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Patent number: 5902835Abstract: An improved method of preparing polyurethane foam by reacting an organic polyisocyanate with a polyol in the presence of water and a combination of a gelling catalyst and a blowing catalyst, in which the blowing catalyst is a compound represented by the following formulae:?M(L.sup.1)(L.sup.2)(L.sup.3)(L.sup.4)!.sub.n?M(L.sup.1)(L.sup.2)(L.sup.3)!.sub.n?M(L.sup.1)(L.sup.2)!.sub.n?M(L.sup.1)!.sub.nwherein M is titanium, zirconium, or hafnium; n ranges from 1 to 20; and each of L.sup.1, L.sup.2, L.sup.3, and L.sup.Type: GrantFiled: May 28, 1998Date of Patent: May 11, 1999Assignee: Air Products and Chemicals, Inc.Inventors: Ingrid Kristine Meier, Mark Leo Listemann, Michael John Kimock
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Patent number: 5889286Abstract: Premixes intended for the preparation of polyurethane or polyisocyanurate foams comprising at least one polyol, at least one hydrofluoroalkane corresponding to the general formula CF.sub.3 --CR.sup.1 R.sup.2 --CF.sub.2 --R.sup.3, where R.sup.1 and R.sup.2 represent, independently, a hydrogen atom or an optionally fluorinated C.sub.1 -C.sub.3 alkyl group and where R.sup.3 represents a hydrogen atom or a methyl group, and at least one stabilizer chosen from nitroalkanes, diketones, alkaline-earth metal salts and brominated compounds.Type: GrantFiled: September 23, 1996Date of Patent: March 30, 1999Assignee: Solvay (Societe Anonyme)Inventors: Pierre Barthelemy, Annie Leroy
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Patent number: 5877226Abstract: A thermal insulating foamed material is a polyurethane foam having closed cells, and produced by mixing, agitating and foaming a polyol, a polyisocyanate, a foam stabilizer, a catalyst, a blowing agent and a carbon dioxide adsorbent. The carbon dioxide adsorbent is produced by mixing and granulating powders of at least one member of alkali metal hydroxides and alkaline-earth metal hydroxides and organic or inorganic powders having a water absorbing property and soaked with water in advance, and formed by a resin film, such as a methacrylic acid ester, which is permeable to carbon dioxide but hardly permeable to water.Type: GrantFiled: April 28, 1998Date of Patent: March 2, 1999Assignee: Matsushita Refrigeration CompanyInventors: Yoshiyuki Tsuda, Kazutaka Uekado, Hideo Nakamoto, Tomohisa Tenra, Tsukasa Takushima
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Patent number: 5866626Abstract: A thermosetting plastic foam solid formed from the reaction product of: (a) either polyisocyanate or isocyanate; (b) a polyol; (c) a catalyst which is capable of promoting the thermosetting reaction between the polyisocyanate or isocyanate and the polyol; and (d) a blowing agent comprised at least partially from a high purity cyclopentane product, wherein the high purity cyclopentane product is about 95% or greater pure cyclopentane, and, optionally, (e) water and/or (f) liquid flame retardant.Type: GrantFiled: November 25, 1996Date of Patent: February 2, 1999Assignee: Exxon Chemical Patents Inc.Inventors: Robert H. Blanpied, James Darryl Thornsberry, Steven E. Silverberg, James R. Lattner, C. Harry McMullen, Leonel E. Sanchez, Tronze-I Dennis Wu
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Patent number: 5847014Abstract: The present invention is directed to an isocyanate reactive mixture comprising from about 17 to about 85% by weight of one or more non-filled polyether polyols having a hydroxyl functionality of from 1.5 to 3 and molecular weights of from 1,500 to 8,000; from about 12 to about 80% by weight of one or more non-tertiary amine containing polyether polyols having a hydroxyl functionality of from 3 to 8 and a molecular weight of from 150 to 1,000; from about 0 to about 4% by weight of one or more primary or secondary diamines or amino alcohols and from 3 to about 12% by weight of water. The invention is also directed to a water-blown, energy absorbing foams made from the isocyanate reactive mixture.Type: GrantFiled: April 15, 1997Date of Patent: December 8, 1998Assignee: Bayer CorporationInventors: Neil H. Nodelman, David D. Steppan, Mark A. Davolio, David F. Sounik, Alan D. Bushmire
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Patent number: 5847018Abstract: A thermosetting plastic foam solid formed from the reaction product of: (a) either polyisocyanate or isocyanate; (b) a polyol; (c) a catalyst which is capable of promoting the thermosetting reaction between the polyisocyanate or isocyanate and the polyol; and (d) a blowing agent comprised at least partially from a high purity cyclopentane product, wherein the high purity cyclopentane product is about 95% or greater pure cyclopentane, and, optionally, (e) water and/or (f) liquid flame retardant.Type: GrantFiled: July 22, 1997Date of Patent: December 8, 1998Assignee: Exxon Chemical Patents Inc.Inventors: Robert H. Blanpied, James Darryl Thornsberry, Steven E. Silverberg, James R. Lattner, C. Harry McMullen, Leonel E. Sanchez, Tronze-I Dennis Wu
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Patent number: 5844012Abstract: A method for producing water-blown molded flexible polyurethane foam which comprises reacting and foaming in one step in a mold a reaction mixture comprising a polyol, an organic polyisocyanate, a urethane catalyst composition and water and a trimerization catalyst which is a quaternary ammonium salt or an alkali metal or alkaline earth metal salt of a Bronsted acid having a pKa of >1, characterized in that the trimerization catalyst is present in an amount from about 0.005 to 0.04 gram milliequivalents per 100 grams of polyol. The preferred trimerization catalyst is an alkali metal N-(2-hydroxyphenyl)methyl glycinate, especially an alkali metal N-(2-hydroxy-5-nonylphenyl)methyl-N-methyl glycinate.Type: GrantFiled: August 1, 1997Date of Patent: December 1, 1998Assignee: Air Products and Chemicals, Inc.Inventors: Robert Gabriel Petrella, John Joseph Koch, Thomas William Bodnar
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Patent number: 5837741Abstract: A method of making a microporous carbon material which includes providing a precursor selected from the group consisting of crystalline salts of aromatic sulfonates and nonporous polymeric salts. Prior to carbonization, the precursor is treated by ion exchange or other conventional processes to introduce a metal such as iron, nickel and cobalt into the precursor. Heat treatment of such composite precursors in the temperature range of 350.degree. to 850.degree. C. in an inert oxygen free atmosphere for a sufficient time promotes thermally induced hydrogen abstraction and rearrangement of BSUs which result in the formation of a composite, carbonaceous microporous material which contains a metal component, and has a pore size distribution in the range of about 4-15 .ANG. A. The structural and storage characteristics of the microporous carbon materials are also disclosed.Type: GrantFiled: August 19, 1996Date of Patent: November 17, 1998Assignee: Syracuse UniversityInventors: James A. Schwarz, Karol Putyera, Teresa J. Bandosz, Jacek Jagiello, Kwabena A. G. Amankwah
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Patent number: 5807958Abstract: Alkaline metal and alkaline earth metal salts of alkyl and alkenyl succinic acids as catalysts for the manufacture of polyurethanes and/or polyureas are provided. Said catalysts are particularly suitable for manufacturing foams of said polymers and have a favorable influence on the cell structures of said materials.Type: GrantFiled: August 1, 1997Date of Patent: September 15, 1998Assignee: Air Products and Chemicals, Inc.Inventors: Klaus Diblitz, Peter Finmans
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Patent number: 5801209Abstract: Disclosed are foamable EPDM compositions comprising EPDM, a carbon black having a CTAB of about 50 to 60 m2/g and DBP of 90 to 115 cc/100 g and a blowing agent which are advantageous for use in applications where UHF microwave curing is utilized and for replacing foamable EPDM compositions incorporating similar amounts of conventional blends of carbon blacks. Also disclosed are foamed, cured EPDM compositions comprising: EPDM and a carbon black having a CTAB of about 50 to 60 m2/g and DBP of 90 to 115 cc/100 g which have advantageously lower sponge density and lower sponge compression set than EPDM compositions incorporating similar amounts of conventional low reinforcing carbon blacks. Further disclosed is a process for producing the foamed, cured EPDM compositions of the present invention. Additionally disclosed is use of the foamed, cured EPDM compositions of the present invention as weatherstripping.Type: GrantFiled: August 15, 1997Date of Patent: September 1, 1998Assignee: Cabot CorporationInventors: Bin Chung, Bruce E. Mackay, Ivan Zlatko Podobnik
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Patent number: 5773483Abstract: A method for the preparation of flexible polyurethane foams by reacting a polyisocyanate containing at least 85% by weight of 4,4'-diphenylmethane diisocyanate or a liquid variant thereof with a polyol composition comprising at least one poly(oxyethylene-oxyalkylene) polyol having an average nominal hydroxyl functionality of from 2 to 6, a number average hydroxyl equivalent weight of from 1000 to 3000, and an average oxyethylene content of from 50 to 85% by weight and with water in the presence of a catalytically effective amount of an alkali or alkaline earth metal carboxylate salt.Type: GrantFiled: November 1, 1995Date of Patent: June 30, 1998Assignee: Imperial Chemical Industries PLCInventors: Berend Eling, Eric Huygens
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Patent number: 5760098Abstract: A process is described for producing polyurethane moldings by the reaction of compounds of molecular weight 400 to 10,000 which contain at least 2 hydrogen atoms capable of reacting with isocyanates, and optionally chain extenders of molecular weight 32 to 399, with polyisocyanates, optionally in the presence of foaming agents, auxiliary materials and additives, in which defined carbamates are used as activators. The polyurethanes obtained by this process are particularly low in emissions, i.e. are stable in relation to diffusion and exhibit low fogging, and are thus particularly suitable for the production of composite bodies comprising a polyurethane core and at least one further plastic material as an outer layer. Also described is the use of these moldings and composite bodies which are stable in relation to diffusion and which cause low fogging, e.g. as dashboards or door trims in the construction of vehicles, furniture, machines or apparatus.Type: GrantFiled: July 31, 1996Date of Patent: June 2, 1998Assignee: Bayer AktiengesellschaftInventors: Peter Haas, Ulrich Liman
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Patent number: 5744509Abstract: A foamed isocyanate-based polymer having a cellular structure and comprising a superabsorbent material, the polymer being capable of: (i) absorbing at least about 10 times its weight of a 0.9 wt./wt. % aqueous NaCl solution maintained at a temperature of from about 20.degree. to about 25.degree. C., and (ii) retaining at least about 10 times its weight of absorbed aqueous NaCl solution which is bound to the superabsorbent material, the cellular structure having a cell size of at least about 30 cells/inch when measured pursuant to ASTM D3576-77. A process for producing the foamed isocyanate-based polymer is also described. The process comprises the steps of: contacting an isocyanate, an active hydrogen-containing compound, an aqueous blowing agent, a catalyst and a superabsorbent material, the superabsorbent material being capable of absorbing at least about 10 times its weight of a 0.9 wt./wt. % aqueous NaCl solution maintained at a temperature in the range of from about 20.degree. to about 25.degree. C.Type: GrantFiled: July 1, 1996Date of Patent: April 28, 1998Assignee: Woodbridge Foam CorporationInventors: Robert N. Wilson, G. Ronald Blair
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Patent number: 5744507Abstract: A foamable, curable organosiloxane composition comprising an alkenyl-functional polyorganosiloxane, an organohydrogensiloxane, a blowing agent, a platinum catalyst and an adhesion promoter comprising an epoxy-functional compound, a hydroxyl-functional compound, a tetraalkylorthosilicate, an organotitanate and an aluminum or zirconium compound.Type: GrantFiled: May 1, 1997Date of Patent: April 28, 1998Assignee: Dow Corning CorporationInventors: Gloria Lynne Angell, Michael Andrew Lutz
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Patent number: 5736587Abstract: The present invention is directed to a process for the preparation of a molded product. The method requires the introduction of a polyurethane foam forming reaction mixture into a mold. The present invention is directed to the use of a metal carboxylate salt of an amino acid as a catalyst for the reaction.Type: GrantFiled: May 30, 1995Date of Patent: April 7, 1998Assignee: Bayer CorporationInventors: Craig M. Sungail, Kenneth R. Riddle
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Patent number: 5733945Abstract: Nickel acetyl acetonate catalysts used in the manufacture of polyurethanes and particularly polyurathane foam, is replaced with a more environmentally friendly organo-metallic catalyst, specifically other metal acetyl acetonates such as iron or copper. In accordance with an important feature of this invention, in addition to the metal acetyl acetonate, the catalyst system also includes acetyl acetone. The acetyl acetone acts as a delay mechanism to delay the catalytic action of the metal acetyl acetonate which is normally highly catalytic at relatively low temperatures. It will be appreciated that high catalytic activity at relatively low temperature will lead to deleterious premature cure. By adding acetyl acetone into the catalyst system, the acetyl acetone acts to delay and/or slow the catalytic action of the metal acetyl acetonate until the polyurethane is heated at which point the acetyl acetone is driven off and the metal acetyl acetonate then provides a relatively fast cure at the elevated temperature.Type: GrantFiled: December 4, 1995Date of Patent: March 31, 1998Assignee: Rogers CorporationInventor: Scott S. Simpson
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Patent number: 5730896Abstract: A method the preparation of rigid foams by reacting an organic polyisocyanate with an isocyanate-reactive material in the presence of a blowing promoter characterised in that the isocyanate-reactive material comprises at least one isocyanate-reactive cyclic carbonate or isocyanate-reactive cyclic urea, the reaction being performed in the presence of an inert insoluble organic liquid which is present as the dispersed phase of an emulsion or a microemulsion, and in the presence of a metal salt catalyst.Type: GrantFiled: June 7, 1995Date of Patent: March 24, 1998Assignee: Imperial Chemical Industries PLCInventors: Herbert Russell Gillis, Dirk Stanssens, Rik De Vos, Aaldrik Roelf Postema, David Randall
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Patent number: 5726214Abstract: Fluoropolymer having unstable end groups is used to form foamed fluoropolymer structures without added blowing agent.Type: GrantFiled: December 26, 1996Date of Patent: March 10, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Marlin Dwight Buckmaster, Stuart Karl Randa
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Patent number: 5719201Abstract: A foamed isocyanate-based polymer having a cellular structure and containing a superabsorbent material, the polymer being capable of: (i) absorbing at least about 20 times its weight of an aqueous fluid maintained at a temperature of from about 20.degree. to about 25.degree. C., and (ii) retaining at least about 20 times its weight of absorbed aqueous fluid which is bound to the superabsorbent material. A process for producing a foamed isocyanate-based polymer comprising the steps of: providing a substantially uniform mixture comprising an isocyanate, an active hydrogen-containing compound and a superabsorbent material, the superabsorbent material being capable of absorbing at least about 20 times its weight of an aqueous fluid maintained at a temperature in the range of from about 20.degree. to about 25.degree. C.Type: GrantFiled: November 9, 1995Date of Patent: February 17, 1998Assignee: Woodbridge Foam CorporationInventor: Robert N. Wilson
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Patent number: 5710230Abstract: This invention relates to a process for the production of polyurethane/urea moldings from a reaction injection molding process by processing the reaction mixture consisting of a diisocyanate and an isocyanate-reactive component via the one-shot process at an isocyanate index of about 80 to 130. The diisocyanate is an unmodified cycloaliphatic diisocyanate. The isocyanate-reactive component consists of 1) at least one polyol having functional groups which are hydroxyl groups, amine groups, or mixtures of hydroxyl groups and amine groups such that the equivalent ratio of hydroxyl groups to amine groups is from 0:1 to 1:1, and 2) at least one chain extender which is selected from diols, triols, primary aliphatic amines, secondary aliphatic amines, aminoalcohols and mixtures thereof. The equivalent ratio of hydroxyl groups to amine groups in the chain extender component is from 1:2 to 10:1.Type: GrantFiled: June 4, 1996Date of Patent: January 20, 1998Assignees: Bayer Corporation, Bayer AktiengesellschaftInventors: David D. Steppan, Neil H. Nodelman, Eduard Mayer, A. Donald Meltzer, Albert Magnotta