Material Is A Metal-containing Material Patents (Class 528/14)
  • Patent number: 6972312
    Abstract: Three processes for the manufacture of polyhedral oligomeric silsesquioxanes (POSS) which utilize the action of bases that are capable of either attacking silicon or any compound that can react with a protic solvent (e.g. ROH, H2O etc.) and generate hydroxide [OH]?, alkoxide [RO]??, etc. The first process utilizes such bases to effectively redistribute the silicon-oxygen frameworks in polymeric silsesquioxanes [RSiO1.5]28 where ?=1-1,000,000 or higher into POSS nanostructures of formulas [(RSiO1.5)n?#, homoleptic, [(RXSiO1.5)n]?#, functionalized homoleptic, [(RSiO1.5)m(R?SiO1.5)n]?#, heteroleptic, and {(RSiO1.5)m(RXSiO1.0)n}?#, functionalized heteroleptic nanostructures. The second process utilizes base to aid in the formation of POSS nanostructures of formulas [(RSiO1.5)n]?# homoleptic and [(RSiO1.5)m(R?SiO1.5)n]?# heteroleptic and [(RSiO1.5)m(RXSiO1.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: December 6, 2005
    Assignee: Hybrid Plastics LLC
    Inventors: Joseph D. Lichtenhan, Joseph J. Schwab, Yi-Zong An, William Reinerth, Michael J. Carr, Frank J. Feher, Raquel Terroba, Qibo Liu
  • Patent number: 6965006
    Abstract: A method of synthesizing metal alkoxide polymers is provided, for use, as an example, in synthesizing hybrid organic/inorganic materials with low optical absorption for optical applications. The method involves a plurality of acidolysis steps involving acidolysis of a metal alkoxide compound with an acid to produce an intermediate acidolysed solution, and combining and condensing the intermediate acidolysed solutions to produce the metal alkoxide polymer.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: November 15, 2005
    Assignee: rpo Pty Ltd.
    Inventor: Congji Zha
  • Patent number: 6911495
    Abstract: A process for the continuous preparation of addition-crosslinking silicone rubbers from a base composition containing at least one polyvinyl polysiloxane and at least 10% by weight, based on the liquid silicone rubber, of hydrophobicized filler, by removing the base composition from a container whose volume reduces proportionally with the amount removed, and conveying the composition by way of a pump with a positive pressure difference to two further pumps (4) which convey the base composition onward, so a component A is prepared continuously by admixing at least one metal catalyst with one stream of the base composition, and a component B is prepared continuously and simultaneously by admixing the crosslinker and inhibitor with a second stream of the base composition, where the metal catalyst, crosslinker, and inhibitor are fed by way of a feed unit which meters in each of the substances.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: June 28, 2005
    Assignee: Wacker-Chemie GmbH
    Inventors: Thomas Hierstetter, Johann Schuster, Gerhard Skroch, Helmut Woehrl
  • Patent number: 6872454
    Abstract: This invention relates generally to heat curable compositions, particularly well utilized for use as impregnation sealants curable using hydrosilation chemistry. The heat curable compositions of the present invention can be stored and shipped as a one-part composition. The composition includes at least one curable unsaturated organic component, at least one co-reactant, which has at least two functional groups reactive with the organic component, and at least one catalyst of initiating the cure of the composition.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: March 29, 2005
    Assignee: Henkel Corporation
    Inventors: Frederick F. Newberth, III, Peter J. Chupas
  • Patent number: 6872795
    Abstract: Heat-stable poly(ethynylene phenylene ethynylene polysiloxene(silylene)) polymers preferably of determined molecular mass, optionally bearing at the end of the chain groups derived from a chain-limiting agent. Processes for preparing these polymers, cured products obtained by heat-treating these polymers, and composite matrices comprising these polymers.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: March 29, 2005
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Christian Levassort, Franck Jousse, Laurent Delnaud, Pierrick Buvat
  • Patent number: 6867242
    Abstract: The invention relates to a method for producing a sealed impregnation and/or release coating of flat joints, in particular of cylinder-head gaskets such as composite seals, metallic joints and multi-layered steel joints. The invention uses a silicone composition including at least a polyorganosiloxane A crosslinkable by a cationic and/or radical process by appropriate crosslinking functional groups, for example, of the alkenyl ether, acrylic, acrylate, epoxide and/or oxethane type; at least an initiator salt B selected among onium borates or an organometallic complex; and at least a reactive diluent C including a nonorganosilicon or organosilicon compound comprising in its structure at least a crosslinking functional group and optionally a secondary functional group different from the crosslinking functional group but capable of chemically reacting with a crosslinking functional group, for example of the hydroxyl, alkoxy and/or carboxyl type.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: March 15, 2005
    Assignee: Rhodia Chimie
    Inventors: Jean-Marc Frances, Olivier Loubet
  • Patent number: 6864340
    Abstract: The present invention provides novel “hybrid” silyl-terminated polymers that contain at least two different reactive end-capping groups. The “hybrid” silyl-terminated polymers of the present invention are produced by a novel single multi-step end-capping reaction of at least one silanol-terminated polymer with at least two silanes in the presence of a catalyst.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: March 8, 2005
    Assignee: Henkel Corporation
    Inventors: Michael P. Levandoski, Robert P. Cross, Alfred A. DeCato, Heath L. Salvati
  • Patent number: 6824833
    Abstract: A stacked film for semiconductor having superior adhesion to a coating film formed by a CVD process in, for example, semiconductor devices, an insulating film having the stacked film and a substrate for semiconductor using the insulating film are disclosed. The stacked film comprises (A) a film of an organic compound having a carbon content of 60% by weight or more and (B) a film prepared by heating a hydrolytic condensate obtained by hydrolysis and condensation of at least one compound selected from the group consisting of specific compounds represented by the general formulae (51) to (54) described hereinabove.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: November 30, 2004
    Assignee: JSR Corporation
    Inventors: Michinori Nishikawa, Manabu Sekiguchi, Matthias Patz, Atsushi Shiota, Kinji Yamada
  • Patent number: 6803440
    Abstract: The invention relates to metal complexes of formula (I) These complexes are particularly suitable for use as catalysts of hydrosilylation reactions.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: October 12, 2004
    Assignee: Rhodia Chimie
    Inventors: Istvan Marko, Sebastien Sterin
  • Patent number: 6797796
    Abstract: Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane block copolymer compositions having a glass transition temperature not exceeding about −54° C. and excellent solvent resistance have been found useful as sealants. Polyalkoxysilylorgano compounds, such as 1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as cross-linkers.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: September 28, 2004
    Assignee: General Electric Company
    Inventors: Navjot Singh, John Thomas Leman, John M. Whitney, Herman Otto Krabbenhoft
  • Patent number: 6770724
    Abstract: Method is provided for selectively opening rings of polyhedral oligomeric silsesquioxane (POSS) compounds to from functionalized derivatives thereof or new POSS species. Per the inventive method, the POSS compound is reacted with an acid to selectively cleave bonds in the POSS rings to add functionalities thereto for grafting, polymerization or catalysis, to thus form new familes of POSS derived compounds. Also provided are the new compounds so formed. Method is also provided for expanding rings of POSS compounds. Per the inventive method, a POSS compound is reacted with silane reagents to obtain an expanded POSS framework with added Si ring substituends to form new families of POSS compounds. Also provided are the new compounds so formed.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: August 3, 2004
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Joseph D. Lichtenhan, Timothy S. Haddad, Frank J. Feher, Daravong Soulivong
  • Patent number: 6753400
    Abstract: A room temperature curing organopolysiloxane composition is provided which displays no toxicity, is resistant to cracking and discoloration, cures rapidly, and yields a cured product of good hardness. This composition includes (A) an organopolysiloxane with at least two hydroxyl groups bonded to silicon atoms within a single molecule, (B) an organosilicon compound represented by a formula (I) shown below, and/or a partial hydrolysis condensate thereof, RaSiX4-a  (I) (wherein, R represents a substituted or unsubstituted monovalent hydrocarbon of 1 to 10 carbon atoms, X represents a hydrolysable group, and a represents an integer of 0 to 3), and (C) a bismuth compound-based curing catalyst.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: June 22, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshifumi Inoue, Hiroshi Mogi, Kouichi Tanaka
  • Patent number: 6753399
    Abstract: The invention discloses a novel method for the preparation of globular particles of a silicone resin or, in particular, a polyorganosilsesquioxane resin having properties suitable as an adjuvant in hair-care toiletry preparations by the hydrolysis condensation reaction of an organotrialkoxy silane compound such as methyl trimethoxysilane in an aqueous alkaline medium. Characteristically, the aqueous reaction medium is alkalified with ammonia or, preferably, an amine compound, e.g., mono(n-alkyl) amine compound, to have a specified pH value of 10.0 to 13.0 and the hydrolysis condensation reaction of the starting silane compound in the aqueous medium is conducted in the presence of metallic ions or, in particular, magnesium ions in a specified concentration of 1×10−5 to 1×10−2 mole/liter.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: June 22, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Yoshinori Inokuchi
  • Publication number: 20040096421
    Abstract: Disclosed are an organic domain/inorganic domain hybrid material comprising an organic domain comprising at least one water-soluble organic polymer having anionic and/or cationic functional groups, and an inorganic domain, the organic and inorganic domains being chemically bonded to each other through the functional groups, the inorganic domain comprising inorganic bridges, each independently comprising at least one Si atom, at least two O atoms and at least one divalent metal atom, wherein the Si atom and the O atoms together form at least one siloxane linkage arranged longitudinally of the inorganic bridge, wherein each divalent metal atom is ionically bonded to the O atoms of the siloxane linkages positioned adjacent to the divalent metal atoms, wherein, when at least a part of the organic domain is comprised of at least one organic polymer having an anionic functional group and optionally a cationic functional group, the organic domain/inorganic domain weight ratio is less than 1.
    Type: Application
    Filed: August 8, 2003
    Publication date: May 20, 2004
    Inventors: Masaaki Kurihara, Hiroyoshi Matsuyama
  • Patent number: 6709504
    Abstract: A composition having water-repellency at high temperature is provided. Some of the invention compositions also exhibits oil-repellency at high temperature. The composition comprises a fluorocarbon silane or hydrolyzate thereof; a surfactant; a polymerizable, silicon-containing compound; and a catalyst.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: March 23, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Satoko Iwato, Mureo Kaku
  • Patent number: 6710119
    Abstract: A room temperature organopolysiloxane composition is provided, which can be cured rapidly and right down to deep sections. The cured products have good rubber characteristics. The composition includes (A) 100 parts by weight of a diorganopolysiloxane represented by a general formula (1) shown below, wherein R represents a substituted or unsubstituted monovalent hydrocarbon group, X represents, independently, an OH group, an alkoxy group or an acyloxy group, a represents an integer from 0 to 2, and n represents a number which results in a viscosity at 25° C. of 25 to 1,000,000 mm2/s; (B) 2 to 50 parts by weight of a hydrolysable silane with at least two acyloxy groups, a partial hydrolysis-condensation product thereof, or a mixture thereof; and (C) 5 to 200 parts by weight of an inorganic filler capable of generating water through a reaction with a carboxylic acid generated by hydrolysis of the constituent (B).
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: March 23, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Tsuneo Kimura, Mamoru Teshigawara
  • Patent number: 6703453
    Abstract: This invention relates to polyurethane compositions which cross-link via a silane polycondensation and contain at least one alkoxysilane-functional polyurethane, at least one basic filler, at least one reaction product of an aminosilane with a maleic or fumaric ester, at least one organometallic compound and optionally additional auxiliary substances, to a process for their preparation, and to their use.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 9, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Schmalstieg, Ralf Lemmerz, Ulrich Walter, Oswald Wilmes
  • Patent number: 6669949
    Abstract: This invention relates to asymmetrical, substituted polysiloxanes which show good compatibility in a variety of oils and improve the spreading behavior of oil-based formulations, to a process for preparing these asymmetrical polysiloxanes and to oil formulations containing said asymmetrical polysiloxanes. The asymmetrical polysiloxanes of this invention are used in herbicidal and pesticidal compositions, in cosmetic and pharmaceutical preparations as well as in industrial applications. The assymmetrical substituted polysiloxanes have the following formula wherein R1, R2, Z a and b are described herein.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: December 30, 2003
    Assignee: Goldschmidt AG
    Inventors: Wayne Kennedy, Arno Knebelkamp, Peter Lersch, Jörg Simpelkamp, Stephen Wilkowski
  • Patent number: 6660394
    Abstract: Disclosed are a coating composition comprising a polymer dispersed in an aqueous medium, the polymer containing (a) a hydrolysate of an organosilane and/or a condensation product thereof and (b) a vinyl polymer containing a silyl group having a silicon atom bound to a hydrolytic group and/or a hydroxyl group, and further comprising (c) an oxazoline derivative as a crosslinking agent and a hardened film obtained therefrom. The above coating composition completes the hardening reaction of a coating film at low temperature for a short period of time, high in hardness immediately after hardening, and having water resistance, weather resistance, organic chemical resistance, acid resistance, alkali resistance, wear resistance and durable adhesion.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: December 9, 2003
    Assignee: JSR Corporation
    Inventors: Kenji Ishizuki, Tatsuya Shimizu, Michiaki Ando, Mibuko Shimada, Hiroshi Shiho
  • Patent number: 6639025
    Abstract: Elastomer-modified Epoxy-polysiloxane compositions of this invention are prepared by combining a silicone intermediate, with an epoxy resin, an elastomeric resinous intermediate, a polyfunctional amine, an optional organometallic catalyst, and optional fillers, pigments, and processing agents. The composition is prepared using a sufficient amount of water to promote hydrolysis of the polysiloxane and the polycondensation of the silanols produced by such hydrolysis. In its cured form, the epoxy-polysiloxane composition exists as a uniformly dispersed arrangement of linear epoxy chain fragments that are cross-linked with a continuous polysiloxane polymer chain, wherein either or both of the epoxy and/or polysiloxane polymers are elastomer modified to provide coatings and floorings having significantly improved properties of impact resistance, flexibility, crack resistance, and abrasion resistance with compared to conventional epoxy systems.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: October 28, 2003
    Assignee: Ameron International Corporation
    Inventor: Haruji Sakugawa
  • Patent number: 6635735
    Abstract: A coating composition having (A) an alcohol dispersion which includes silica having the hydrophobic surface and dispersed in an alcohol dispersion medium, the content of silica in a solid substance being 80% by weight or more; (B) a solution including a silicone oligomer which is obtained by a reaction of an alkoxysilane with water and has an average structural unit represented by R1nSiOx/2(OH)y (OR2)z (R1 representing an alkyl group, phenyl group or vinyl group, R2 representing an alkyl group and n, x, y and z representing numbers satisfying relations: 0.8≦n≦1.7, 2<x<3.2, y>0, z>0 and y+z=4−n−x); and (C) a curing agent. The coating composition exhibits excellent storage stability after the curing agent is added, suppresses aggregation of fine silica particles in spray coating and provides coating films having a high hardness and exhibiting excellent weatherability, water resistance, chemical resistance and adhesion.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: October 21, 2003
    Assignee: Nihon Yamamura Glass Co., Ltd.
    Inventors: Zuyi Zhang, Hajimu Wakabayashi
  • Patent number: 6632897
    Abstract: Described is the use of nanoscale metal oxide particles as catalysts for the thermal and/or photochemical polymerization of species having at least one polymerizable carbon-carbon multiple bond and/or at least one carbon containing ring capable of undergoing a ring opening polymerization.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: October 14, 2003
    Assignee: Institut Für Neue Materialien gemeinnützige
    Inventors: Elisabeth Geiter, Helmut Schmidt
  • Patent number: 6624256
    Abstract: Disclosed is a method of preparation of a siloxane-functionalized high 1,4-cis polybutadiene using a siloxane compound, in which the siloxane group expands the usage of the high 1,4-cis polybutadiene.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: September 23, 2003
    Assignee: Korea Kumho Petrochemical Co. Ltd.
    Inventors: Gwanghoon Kwag, Aju Kim, Seunghwon Lee
  • Patent number: 6605360
    Abstract: A polyorganosiloxane compound obtained by allowing a polyorganosiloxane having silicone resin structure to react with a polyorganosiloxane having silicone oil structure in the presence of a hydrosilylation catalyst, and having the both structures in the molecule. Also disclosed is a coating composition including the polyorganosiloxane compound, a silane or silicone resin having an RO—Si group, and a curing catalyst. The former polyorganosiloxane compound is compatible with silicone resins. The latter coating composition can provide coatings improved in flexibility without lowering the curability, surface hardness and weatherability inherent in silicone resins.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: August 12, 2003
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroaki Kizaki, Masaaki Yamaya, Akinari Itagaki
  • Patent number: 6605683
    Abstract: A process for producing a solution of a silicone oligomer which comprises adding to an alkoxysilane, as a self-catalyst, a solution comprising a silicon compound which is soluble in hydrophilic solvents and has an average structural unit represented by R1nSiOx/2(OH)y(OR2)z, wherein R1 represents an alkyl group having 1 to 3 carbon atoms, vinyl group or phenyl group, a plurality of R1 may represent a same group or different groups, R2 represents an alkyl group having 1 to 3 carbon atoms, a plurality of R2 may represent a same group or different groups and n, x, y and z represent numbers satisfying relations: 0≦n<3, 0<x<4, y>0, z≧0 and y+z=4−n−x, and hydrolyzing and polycondensing the alkoxysilane; and a film of an organopolysiloxane formed from the solution of a silicone oligomer.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: August 12, 2003
    Assignee: Nihon Yamamura Glass Co., LTD
    Inventor: Zuyi Zhang
  • Patent number: 6599995
    Abstract: The present invention relates to a highly regular and well-defined ladder structured polyorganosilsesquioxane with superior heat resistance, combustion resistance and flexibility. This product is made by alternatingly bonding together two kinds of substituents. The polyorganosilsesquioxane prepared according to the present invention has a small molecular weight distribution and a high molecular weight. It is soluble in organic solvents because its three-dimensional network structure is not formed as a result of a condensation polymerization, which resulted in a product having structure defect(s) and randomness because of the oligomer that was previously used as a starting material for polymerization. Polyalkylaromaticsilsesquioxanes obtained according to the preparing method of the present invention are useful, heat-resistant materials.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: July 29, 2003
    Assignee: Korea Institute of Science and Technology
    Inventors: Seung-Sang Hwang, Soon-Man Hong, Eung-Chan Lee, Seung-Pyo Hong
  • Patent number: 6596834
    Abstract: Silicone resins having the general formula (R1SiO3/2)x(HSiO3/2)y where R1 is an alkyl group having 8 to 24 carbon atoms; x has a value of 0.05 to 0.7; y has a value of 0.3 to 0.95 and x+y =1. The resins are used to form porous ceramic materials and porous thin films on semiconductor devices.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: July 22, 2003
    Assignee: Dow Corning Corporation
    Inventor: Bianxiao Zhong
  • Patent number: 6593413
    Abstract: A room temperature rapid-curable silicone composition is provided which includes (A) an organopolysiloxane terminated with hydroxyl groups, having a viscosity of from 25 mPa·s to 1,000,000 mPa·s at 25° C.; (B) a compound selected from the group consisting of a hydrolyzable silane represented by the following general formula (1): RnSiX4−n  (1) wherein R represents a monovalent hydrocarbon group having 1 to 12 carbon atoms; X represents a compound selected from the group consisting of a ketoxime group, an alkoxyl group, an alkenoxyl group and an acyloxyl group; and n represents an integer of 0 to 2, and a partial hydrolysis-condensation product thereof; and (C) a water-containing wet-process silica having an average particle diameter of 100 &mgr;m or smaller, which is a chief source for feeding water necessary for condensation curing reaction.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: July 15, 2003
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hironobu Muramatsu, Tsuneo Kimura
  • Patent number: 6586104
    Abstract: A coating liquid for forming a transparent coating comprising fine particles of an inorganic compound and a hydrolyzate of an organosilicon compound represented by the general formula (I): RnSi(OR′)4−n  (I) wherein R and R′ represent organic groups which may be identical to each other or different from each other, and n is an integer of 1 to 3. This coating liquid ensures excellent substrate wettability and compatibility with various organic solvents so that the printability and applicability thereof are desirable, with the result that a transparent coating film of high uniformity, for example, a flattening coating film, can be formed. The present invention comprises a substrate having a transparent coating film formed on the substrate surface from the above coating liquid.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: July 1, 2003
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Masayuki Matsuda, Nobuaki Yoshida, Tsuguo Koyanagi, Michio Komatsu
  • Publication number: 20030109660
    Abstract: Disclosed is a flame retardant resin composition comprising: 100 parts by weight of a resin component (A) which is a resin mixture of an aromatic polycarbonate and a styrene polymer, wherein the resin mixture has an aromatic polycarbonate content of from 50 to 95% by weight and a styrene polymer content of from 5 to 50% by weight; 0.1 to 30 parts by weight of an organopolysiloxane (B) which comprises 0 to 70 mol % of a monofunctional siloxane unit (M unit), 0 to 100 mol % of a bifunctional recurring siloxane unit (D unit), 0 to 100 mol % of a trifunctional recurring siloxane unit (T unit), and 0 to 63 mol % of a tetrafunctional recurring siloxane unit (Q unit); and 0.0005 to 5 parts by weight of at least one inorganic metal salt (C) selected from the group consisting of inorganic alkali metal salts and inorganic alkaline earth metal salts.
    Type: Application
    Filed: October 11, 2002
    Publication date: June 12, 2003
    Inventors: Hiroji Oda, Kotaro Kuwata
  • Patent number: 6573355
    Abstract: The invention discloses a method for the preparation of an organopolysiloxane having a branched molecular structure which comprises the steps of: (A) Mixing (A1) an organopolysiloxane represented by the average unit formula [R13SiO½]m[R1SiO{fraction (3/2)}]n[R1(R2O)SiO]q, in which R1 is a monovalent hydrocarbon group, R2 is a hydrogen atom, methyl group or ethyl group and the subscripts m, n and q are each 0 or a positive number with the proviso that (n+q)/m is from 0.6 to 1.5 and q/(m+n) is 0 or a positive number not exceeding 0.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: June 3, 2003
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shinji Irifune, Masahiko Ogawa
  • Patent number: 6569521
    Abstract: A stretch releasing pressure sensitive adhesive tape includes a silicone pressure sensitive adhesive composition that exhibits a 180° peel strength on a glass substrate at 98% relative humidity of at least about 5.47 N/dm and a non-tacky tab. A stretch releasing pressure sensitive adhesive tape includes a pressure sensitive adhesive composition having a modulus at 1 radian/second and −17° C. of no greater than about 1×107 Pa and a non-tacky tab.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: May 27, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Margaret M. Sheridan, James L. Bries, Jeffrey D. Malmer, Audrey A. Sherman, David J. Kinning
  • Patent number: 6566322
    Abstract: Disclosed are silicone polymer based compounds, which include a hydrophobic silicone polymer backbone and a hydrophilic component. The hydrophilic component may act as a chelating agent to bind a metal. The hydrophilic component may be hydrophilic prior to binding with a metal or after binding. Also disclosed are methods of making these compounds. The compounds are useful in a variety of applications.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: May 20, 2003
    Assignee: McMaster University
    Inventors: Michael A. Brook, Rodica-Sinziana Himmeldirk
  • Patent number: 6559199
    Abstract: An elastomer system having biocide properties is described, useful, in particular, for dental impressions. An efficient system is provided for destroying microbes, without adversely affecting the crosslinking properties and the mechanical qualities of RTV 2 elastomers. Said system comprises an RTV 2 silicone, preferably SiH/SiVi polyaddition product and a biocide selected among active chlorine precursors, preferably among N-chloramines. The system may include functional additives (silicon fillers, alumina, paraffin, vaseline oil). As for the biocide, it can be provided with an antiseptic auxiliary adjuvant along with EDTA-type sequestering agents.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: May 6, 2003
    Assignee: Rhodia Chimie
    Inventors: Christian Pusineri, Marco Del Torto
  • Patent number: 6548614
    Abstract: A stain-proofing agent comprising a compound represented by the formula (1): and non-aqueous composition for paints comprising the stain-proofing agent, resin, curing agent and/or curing catalyst and being capable of forming a coating film remarkably excellent in stain-proofing property.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: April 15, 2003
    Assignee: Daikin Industries, Ltd.
    Inventors: Haruhiko Mohri, Susumu Wada, Akira Chida, Masaru Nagato, Keiko Kunimasa, Yoshiki Shimizu
  • Patent number: 6548175
    Abstract: The invention is directed to improved conductive adhesives for solder-free interconnections in microelectronic assembly processes such as for chip carrier-to-substrate attachment. These adhesives are characterized by low tensile modulus, low resistivity, high adhesion strength, and durability of these properties during reliability stress conditions of thermal shock, thermal aging, and temperature/humidity (85° C./85%) exposure of the assembled devices. The adhesives contain a homogeneous solution of a siloxane containing epoxide, a curing agent, a curing catalyst and an organic polymeric or oligomeric additive. A conductive filler is added to the solution forming the filler. Preferred fillers are Ag coated with Pd and Ag coated with Au.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: April 15, 2003
    Assignee: International Business Machines Corporation
    Inventors: Krishna G. Sachdev, Raymond A. Jackson, Amy B. Ostrander, Charles H. Perry, Megan J. Shannon
  • Patent number: 6534587
    Abstract: Symmetric and asymmetric cyclic silalkylenesiloxane monomers and copolymers thereof, as well as crosslinked and/or reinforced silalkylenesiloxane copolymers, medical devices containing such materials, and methods of preparation.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: March 18, 2003
    Assignee: Medtronic, Inc
    Inventors: Mark A. Tapsak, Edward Di Domenico
  • Patent number: 6524716
    Abstract: There is disclosed a method for the preparation of a diene polymer interpenetrated with a polysiloxane comprising the polymerization of (A) at least one silane monomer of the formula: (B) at least one silane monomer of the formula: (C) at least one diene monomer, said polymerization being conducted in the presence of an anionic base, an inert solvent and a polymerization initiator, wherein each R1 is independently selected from the group consisting of alkyl radicals having from 1 to 4 carbon atoms and aryl radicals having 6 carbon atoms and R2 is selected from the group consisting of where x is an integer of from 1 to 8.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: February 25, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Friedrich Visel, Wolfgang Lauer, Marc Weydert
  • Patent number: 6518371
    Abstract: A polyorganosiloxane containing the units (HR2Si—O1/2) HM units, (Si—O4/2) Q units, (R1Si—O3/2) T units and (R2Si—O2/2) D units in a ratio of from 2:1:0:0 to 6:4:2:2, or (HR2Si—O1/2) HM units, (R1Si—O3/2) T units, (R2Si—O2/2) D units and (R2(R1O)Si—O1/2) in a ratio HM:T:D:alkoxyM of from 1:2:0:0 to 3:4:2:2 is described, where R are identical or different, non-halogenated or halogenated hydrocarbon radicals having from 1 to 18 carbon atoms per radical, or are OR1, where R1 is a monovalent, unsubstituted or substituted hydrocarbon radical having from 1 to 8 carbon atoms, and in each molecule there are at least 3 Si-bonded hydrogen atoms. The polyorganosiloxanes are particularly useful as crosslinking agents in addition curable elastomer formulations.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: February 11, 2003
    Assignee: Wacker-Chemie GmbH
    Inventors: Peter Fink, Peter Jerschow, Hedwig Schreiter, Richard Birneder, Alois Riedl
  • Patent number: 6506498
    Abstract: Coating powders are provided which provide high-temperature, translucent coatings useful for light-emitting devices such as incandescent bulbs. The coating powders comprise a binder, at least 90 wt % up to 100 wt % of which is a silicone resin. The coating powders are filled with between about 10 and about 50 phr of fillers selected from the group consisting of needle-like calcium metasilicate, mica, rod-like glass particles, and mixtures thereof, the fillers having aspect ratios between about 8 and about 40.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: January 14, 2003
    Assignee: Rohm and Haas Company
    Inventors: Owen H. Decker, Charles P. Tarnoski, Lee F. Spencer, Roy M. Berstler, James G. Fotiou
  • Patent number: 6495264
    Abstract: A composition for film formation which comprises: (A) a product of hydrolysis and condensation obtained by hydrolyzing and condensing at least one silane compound selected from the group consisting of compounds represented by the formula (1), compounds represented by the formula (2), and compounds represented by the formula (3) in the presence of water and at least one compound selected from the group consisting of tetraalkylammonium hydoxides, alicyclic organic amines, and metal hydroxides, and (B) an organic solvent.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: December 17, 2002
    Assignee: JSR Corporation
    Inventors: Eiji Hayashi, Kouichi Hasegawa, Youngsoo Seo
  • Patent number: 6495649
    Abstract: Spherical silicone fine particles having an average particle diameter of 0.1 to 5 &mgr;m, which can be produced without decreasing a yield and also without conducting a dilution step, and a process for effectively producing the same. Spherical silicone particles are obtained by reacting an organotrialkoxysilane with a tetraalkoxysilane. Water in an amount of 20 to 150 moles is added to 1 mole of the silane mixture, which is subjected to hydrolysis under an acidic condition to obtain an aqueous or alcohol solution of an organosilanol and/or the partial hydrolyzed product thereof, and an aqueous alkaline solution is added thereto, mixed and allowed to stand to conduct polycondensation.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: December 17, 2002
    Assignee: GE Toshiba Silicones Co., Ltd.
    Inventors: Yukinobu Harada, Akira Takagi
  • Patent number: 6492479
    Abstract: The invention comprises a method for producing fluorosilicone oil by reacting a fluorosilicone trimer with a triorganosilanol in the presence of an alkali silanolate. The polymer may be condensed to increase viscosity and decrease the silanol content of the polymer, and volatiles may be removed by stripping. The method provides a high yield of fluorosilicone oil of narrow viscosity ranges in an efficient reaction, and produces small amounts of waste.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: December 10, 2002
    Assignee: General Electric Company
    Inventors: John S. Razzano, Nancy E. Gosh
  • Patent number: 6472079
    Abstract: A composition for film formation which comprises: (A) a product of hydrolysis and condensation obtained by hydrolyzing and condensing at least one compound selected from the group consisting of (A-1) compounds represented by the following formula (1) RaSi(OR1)4-a  (1) (A-2) compounds represented by the following formula (2) Si(OR2)4  (2) and (A-3) compounds represented by the following formula (3) R3b(R4O)3-bSi—(R7)d—Si(OR5)3-cR6c  (3) (B) at least one member selected from the group consisting of compounds of the metals in Groups IA and IIA of the periodic table; and (C) an organic solvent. A method for film formation using the composition and a silica-based film obtained by the method are also disclosed.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: October 29, 2002
    Assignee: JSR Corporation
    Inventors: Eiji Hayashi, Michinori Nishikawa, Kinji Yamada
  • Patent number: 6469119
    Abstract: Siloxane organic hybrid polymers and a method of making them by condensation polymerization reaction of organoalkoxysilane in the presence of organic film-forming polymers are disclosed. Alkali metal carboxylic acid catalyst is also disclosed, as well as the incorporation of cerium oxide for attenuation of ultraviolet radiation.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: October 22, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: John D. Basil, Chia-Cheng Lin, Robert M. Hunia, Helmut Franz
  • Patent number: 6448360
    Abstract: A process for the production of a cyclic siloxane described by formula (R1(CH3)SiO)d comprising reacting in the presence of an alkali catalyst a siloxane mixture comprising a silane or a linear siloxane described by general formula HO(R1(CH3)SiO)bH and a cyclic siloxane described by general formula (R1(CH3)SiO)c, where R1 is an alkenyl group having 6 to 14 carbon atoms, b is an integer of one or greater, c is an integer of 3 or greater, and d is an integer of 3 or greater.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: September 10, 2002
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Tadashi Okawa, Junichi Maeshima, Norikatsu Higuchi, Takao Takemasa
  • Patent number: 6432865
    Abstract: The invention is a high molecular weight polyether polyol prepared by the reaction of one or more compounds having one or more active hydrogen compounds with one or more alkylene oxides in the presence of a catalyst comprising calcium having counterions of carbonate and a C6-10 alkanoate in a solvent or dispersant which does not contain active hydrogen atoms. The polyether polyol prepared preferably has an equivalent weight of from about 1000 to about 20,000, a polydispersity of 1.3 or less and a residual catalyst level of from about 0 to about 2000 parts per million (ppm). In another embodiment the invention is a process for preparing such high molecular weight polyether polyols. The process comprises first, contacting one or more compounds having one or more active hydrogen atoms with one or more alkylene oxides in the presence of a catalyst. The catalyst comprises calcium having counterions of carbonate and a C6-10 alkanoate in a solvent, wherein the solvent does not contain active hydrogen atoms.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: August 13, 2002
    Assignee: The Dow Chemical Company
    Inventors: Philip W. McGraw, Paul E. Cranley, Robert H. Whitmarsh
  • Patent number: 6428897
    Abstract: A method of making a coated substrate which includes the steps of applying a layer of a coating composition, said coating composition comprising an alkenyl functional organopolysiloxane and a hydride functional organopolysiloxane, to the substrate, said substrate comprising a catalytically effective amount of a precious metal catalyst, and allowing the layer to cure, allows the use of a non-catalyzed coating bath having a very long useful life, while providing a highly reactive coating layer that may be rapidly cured at low temperature.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: August 6, 2002
    Assignee: General Electric Company
    Inventors: Larry N. Lewis, Michael J. O'Brien
  • Patent number: 6423661
    Abstract: The invention is a high molecular weight polyether polyol prepared by the reaction of one or more compounds having one or more active hydrogen compounds with one or more alkylene oxides in the presence of a catalyst comprising calcium having counterions of carbonate and a C6-10 alkanoate in a solvent or dispersant which does not contain active hydrogen atoms. The polyether polyol prepared preferably has an equivalent weight of from about 1000 to about 20,000, a polydispersity of 1.3 or less and a residual catalyst level of from about 0 to about 2000 parts per million (ppm). In another embodiment the invention is a process for preparing such high molecular weight polyether polyols. The process comprises first, contacting one or more compounds having one or more active hydrogen atoms with one or more alkylene oxides in the presence of a catalyst. The catalyst comprises calcium having counterions of carbonate and a C6-10 alkanoate in a solvent, wherein the solvent does not contain active hydrogen atoms.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: July 23, 2002
    Assignee: The Dow Chemical Company
    Inventors: Philip W. McGraw, Paul E. Cranley, Robert H. Whitmarsh
  • Patent number: 6420088
    Abstract: Antireflective compositions characterized by the presence of an SiO-containing polymer having pendant chromophore moieties are useful antireflective coating/hardmask compositions in lithographic processes. These compositions provide outstanding optical, mechanical and etch selectivity properties while being applicable using spin-on application techniques. The compositions are especially useful in lithographic processes used to configure underlying material layers on a substrate, especially metal or semiconductor layers.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: July 16, 2002
    Assignee: International Business Machines Corporation
    Inventors: Marie Angelopoulos, Ari Aviram, C. Richard Guarnieri, Wu-Song Huang, Ranee Kwong, Wayne M. Moreau