Phosphorus Is Part Of A Covalent Ring Patents (Class 524/116)
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Patent number: 6653375Abstract: The invention relates to urethane di(meth)acrylate derivatives of 1-3-bis(1-isocyanato-1-methylethyl)benzene according to Formula (I) in which R is hydrogen or a straight-chained C1-C8 alkyl radical; X and Y independently of each other stand for R1 being a substituted or unsubstituted C6- to C12-aryl or C7- to C16-alkyl aryl radical; R2 hydrogen, a C1- to C5-alkyl or a substituted or unsubstituted C6- to C12-aryl radical; R3 hydrogen or a methyl radical; R4 a C1- to C8-alkylene radical which can be broken by oxygen atoms, or a phenylene radical; R5 hydrogen or a methyl radical; R6 a substituted or unsubstituted C6- to C12-aryl or C7- to C16-alkyl aryl radical; Z being —CO— or a chemical bond and W standing for oxygen, sulphur or NR7, R7 being hydrogen or a straight-chained C1- to C6-alkyl radical. The substances are suitable in particular for the production of dental materials.Type: GrantFiled: January 25, 1999Date of Patent: November 25, 2003Assignee: Ivoclar AGInventors: Norbert Moszner, Volker Rheinberger, Thomas Völkel, Urs Karl Fischer
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Publication number: 20030207967Abstract: A powder coating composition comprising (I) an organic film-forming binder and (II) a sterically hindered amine compound selected, for example, from class (a-1); (a-1) a compound of formula (A-1) in which m1 is 1, 2 or 4, if m1 is 1, E1 is C1-C25alkyl, if m1 is 2, E1 is C1-C14alkylene, and if m1 is 4, E1 is C4-C10alkanetetratyl.Type: ApplicationFiled: March 10, 2003Publication date: November 6, 2003Inventor: Hugh Stephen Laver
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Patent number: 6627122Abstract: A powdery flame retardant which is obtained by mixing a flame retardant which is liquid or a viscous solid at ordinary temperature with an inorganic fibrous substance to adhere or adsorb the retardant to the fibrous substance, and which comprises 5 to 70 wt. % the flame retardant and 95 to 30 wt. % the fibrous substance. The powdery flame retardant can be easily handled because it is a powder, and is obtained by a simple and industrially advantageous method. It produces a remarkable effect that the performance of the liquid or viscous flame retardant is not impaired.Type: GrantFiled: February 14, 2001Date of Patent: September 30, 2003Assignee: Otsuka Chemical Co., Ltd.Inventors: Yuji Tada, Tadao Yabuhara, Shinji Nakano, Takashi Kameshima, Yoichi Nishioka, Hiroyuki Takase
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Patent number: 6613822Abstract: A thermoplastic molding composition that contains aromatic polycarbonate and/or polyester carbonate, a graft polymer, phosphazene compound, phosphorus compound and fluorinated polyolefin is disclosed. The composition exhibits excellent flame retardance and very good mechanical properties, including weld line strength and impact strength.Type: GrantFiled: December 21, 2000Date of Patent: September 2, 2003Assignee: Bayer AktiengesellschaftInventors: Thomas Eckel, Michael Zobel, Dieter Wittmann
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Publication number: 20030083405Abstract: The oxidation of a polymer is inhibited by adding to the polymer about 0.Type: ApplicationFiled: November 5, 2002Publication date: May 1, 2003Inventors: Qi Wang, Sandor Nagy
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Patent number: 6528559Abstract: This invention provides a halogen-free flame retardant which advantageously has a high melting point and a low volatility and does not impair the inherent properties of resins. The flame retardant of the invention is a phosphazene compound crosslinked with a crosslinking group such as a phenylene group, wherein each of the crosslinking groups is interposed between the two oxygen groups left after the elimination of phenyl groups from the phosphazene compound; the crosslinked phenoxyphosphazene compound does not have any free hydroxyl groups (derived from crosslinking groups); and the amount of the phenyl groups in the crosslinked compound is 50 to 99.9%, based on the total number of the phenyl groups in the phosphazene compound.Type: GrantFiled: February 12, 2001Date of Patent: March 4, 2003Assignee: Otsuka Chemical Co., Ltd.Inventors: Yoshifumi Nakacho, Tadao Yabuhara, Yuji Tada, Yoichi Nishioka
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Patent number: 6521689Abstract: An object of this invention is to impart excellent flame retardancy to an aromatic polyamide resin without use of a halogen compound which is responsible for generation of gases harmful to the human body and without decreasing preferred properties (e.g. mechanical properties, and molding processability) inherently possessed by aromatic polyamide resins, the flame-retardant aromatic polyamide resin composition of this invention comprising (a) 100 parts by weight of an aromatic polyamide resin, (b) 0.1 to 100 parts by weight of a crosslinked phosphazene compound which is a compound crosslinked with a crosslinking group, such as phenylene groups, the crosslinking group being interposed between the two oxygen atoms left after the elimination of phenyl groups from the phosphazene compound, no free hydroxyl group being present in the molecule, the amount of all phenyl groups in the crosslinked compound being 50 to 99.Type: GrantFiled: July 6, 2001Date of Patent: February 18, 2003Assignee: Otsuka Chemical Co., Ltd.Inventors: Tadao Yabuhara, Yuji Tada, Shinji Nakano, Takashi Kameshima, Yoichi Nishioka, Hiroyuki Takase
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Patent number: 6518336Abstract: This invention provides a flame-retardant resin composition comprising: (A) 100 parts by weight of a thermoplastic resin other than a thermotropic liquid crystal polymer, (B) 0.01 to 50 parts by weight of a thermotropic liquid crystal polymer, and (C) 1 to 30 parts by weight of a halogen-free phosphazene compound, the invention providing a novel flame-retardant resin composition which is free of the problems arising due to the presence of halogen element, the composition being excellent in flame retardancy, mechanical properties, molding processability and the like, and being unlikely to cause dripping.Type: GrantFiled: December 19, 2000Date of Patent: February 11, 2003Assignee: Otsuka Chemical Co., Ltd.Inventors: Tadao Yabuhara, Yuji Tada, Takashi Kameshima, Shinji Nakano, Yoichi Nishioka, Hiroyuki Takase
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Patent number: 6509401Abstract: The present invention relates to a synergistic flame retardant combination for thermoplastic polymers which comprises as component A a salt of 1-hydroxydihydrophosphole oxides of the formula (Ia) or formula (Ib) and/or 1-hydroxyphospholane oxides of the formula (II) and as component B a nitrogen compound of the formula (III) to (VIII) or a mixture of the compounds designated by the formulae in which the substituents are as defined in the description.Type: GrantFiled: August 27, 1998Date of Patent: January 21, 2003Assignee: Clariant GmbHInventors: Elke Jenewein, Bernd Nass, Wolfgang Wanzke
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Publication number: 20020198295Abstract: The present invention relates to a flame retardant resin composition comprising:Type: ApplicationFiled: May 30, 2001Publication date: December 26, 2002Inventors: Hiroshi Urabe, Hajime Ohyama, Masami Suzuki
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Patent number: 6485657Abstract: A new gamma-ray stabilizer comprising a combination of 100 parts by weight of a benzyl compound (A) having a specific chemical structure and 0.01 to 10 parts by weight of a pentaerythritol phosphorous ester (B) having a spirocyclic structure. Said stabilizer is preferably blended in such a manner that said (A) is contained in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of a thermoplastic polymer (polycarbonate or the like), and said (B) is contained in an amount of 0.01 to 1 part by weight based on 100 parts by weight of said (A).Type: GrantFiled: February 11, 2000Date of Patent: November 26, 2002Assignee: Teijin, LimitedInventors: Wataru Funakoshi, Tetsuo Kanda, Fumitaka Kondo, Katsushi Sasaki
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Publication number: 20020137820Abstract: A polyolefinic composition comprising as component a) one or more compounds of formula I to III 1Type: ApplicationFiled: September 20, 2001Publication date: September 26, 2002Inventor: Peter Staniek
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Patent number: 6391940Abstract: A preferred embodiment of the invention provides a composition and method of treating dental metal. The composition includes a polymerizable aryl compound having at least one carboxylic acid group and at least one polymerizable group, and a polymerizable compound having at least one polymerizable group and at least one phosphorous containing group. A preferred composition includes at least 50 percent by weight of a volatile organic solvent, at least 15 percent by weight of one or more polymerizable acrylate compounds and an effective amount of a photoinitiator. At least a portion of the polymerizable compounds are multifunctional polymerizable compounds having at least three acrylate moieties. The polymerizable compounds are substantially soluble in the solvent. The composition is adapted to form a polymeric material which is adapted to adhere to metal and ceramics and to dentin. Compositions of the invention have superior adhesion to dental metals and tooth without separately acid etching dentin or enamel.Type: GrantFiled: June 29, 1999Date of Patent: May 21, 2002Assignee: Dentsply Research & Development Corp.Inventors: Gordon Brian Blackwell, Kewang Lu, Chin-Teh Huang, Mingxin Fan, Paul D. Hammesfahr, Xiuling Wang, Junjie Sang
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Patent number: 6369140Abstract: A polyolefinic composition comprising as component a) one or more compounds of formula I to III in which each R1 independently is selected from linear or branched C1-30alkyl, C5-12cycloalkyl, C2-24alkenyl, C2-18alkoxyalkyl, C2-19methoxyalkanoyl, C7-30alkaryl, C7-30aralkyl, C4-24heteroaryl (where any one of the above substituents of R1 are unsubstituted or are substituted by 1 to 3 groups selected from C1-12alkyl, —OR4, —NR4R5, —COR4 and —COOR4); and C6-30aryl, unsubstituted or substituted by 1 to 5 groups R3 selected from C1-12alkyl, C1-8alkoxy, C5-6cycloalkyl, phenyl or phenoxy, —OR4, —NR4R5, —COR4 and —COOR4, R4 and R5 independently are selected from hydrogen, C1-30alkyl (linear or branched), C5-12cycloalkyl, C6-24aryl, C7-30alkaryl or C7-30aralkyl; A is a direct bond, a group —(P-R1)p— or an n-valent aliphatic or aromatic residue, (preferably C1-30alkylene (linear or branched), C5-12cycloalkylene, C7-30alkarylene, C7-30aralkylType: GrantFiled: September 28, 1995Date of Patent: April 9, 2002Assignee: Clariant Finance (BVI) LimitedInventor: Peter Staniek
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Patent number: 6344158Abstract: The invention relates to a flame retardant combination for thermoplastic polymers comprising, as component A, a salt of 1-hydroxydihydrophosphole oxides of formula (Ia) or formula (Ib) and/or 1-hydroxyphospholane oxides of formula (II), and, as component B, a synthetic inorganic compound and/or a mineral product.Type: GrantFiled: January 29, 2000Date of Patent: February 5, 2002Assignee: Clariant GmbHInventors: Elke Schlosser, Bernd Nass, Wolfgang Wanzke
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Patent number: 6277917Abstract: Curable powder clear coating composition and coated substrate with multilayered coatings have as the predominant film-forming polymer in the coating at least one epoxy acrylic copolymer in an amount from 60 to 99.99 percent by weight and 10 to 40 percent by weight of a polycarboxylic acid crosslinking agent. The percentages by weight are based on solids of the curable coating composition. A single predominant film-forming epoxy acrylic copolymer has a number average molecular weight in the range of about 1000 to 5500; a calculated Tg in the range of 50 to 85° C.; epoxy content in the range of 35 to 85, and a styrene content resulting from an amount of styrene monomer in the range of up to about 25 weight percent based on the weight percent of the monomers to form the copolymer.Type: GrantFiled: June 7, 1999Date of Patent: August 21, 2001Assignee: PPG Industries Ohio, Inc.Inventors: Anton Jurgetz, Karen B. Allen, John M. Furar, Kurt A. Humbert, Charles M. Kania, Stephen G. McQuown, Karen S. Rechenberg
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Patent number: 6225382Abstract: A fluorine-containing resin composition comprising at least one fluorine-containing polycyclic compound (A) selected from the group consisting of the following compounds (A1), (A2) and (A3), and a polymer (B) having a fluorine-containing alicyclic structure: (A1) a fluorine-containing non-condensed polycyclic compound having at least two fluorine-containing rings bonded by a bond containing at least one member selected from the group consisting of a triazine ring, an oxygen atom, a sulfur atom, a phosphorus atom and a metal atom, each of said fluorine-containing rings being a carbon ring or a heterocyclic ring, (A2) a fluorine-containing non-condensed polycyclic compound having at least three fluorine-containing rings bonded directly or by a bond containing a carbon atom, each of said fluorine-containing rings being a carbon ring or a heterocyclic ring, (A3) a fluorine-containing condensed polycyclic compound which is a condensed polycyclic compound composed of at least three carbon rings or heterocyclic rType: GrantFiled: September 23, 1998Date of Patent: May 1, 2001Assignee: Asahi Glass Company Ltd.Inventors: Ikuo Matsukura, Shunsuke Yokotsuka, Katsumi Suzuki
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Patent number: 6191190Abstract: A composition and method of treating a dental tooth. The composition includes a polymerizable aryl compound having at least one carboxylic acid group and at least one polymerizable group, and a polymerizable compound having at least one polymerizable group and at least one phosphorous containing group. A preferred composition includes at least 50 percent by weight of a volatile organic solvent, at least 15 percent by weight of one or more polymerizable acrylate compounds and an effective amount of a photoinitiator. At least a portion of the polymerizable compounds are multifunctional polymerizable compounds having at least three acrylate moieties. The polymerizable compounds are substantially soluble in the solvent. The composition is adapted to form a polymeric material which is adapted to adhere to dentin. Compositions of the invention have superior adhesion to tooth without separately acid etching dentin or enamel.Type: GrantFiled: May 18, 1998Date of Patent: February 20, 2001Assignee: Dentsply Research & Development Corp.Inventors: Gordon Brian Blackwell, Kewang Lu, Chin-Teh Huang, Mingxin Fan, Paul D. Hammesfahr
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Patent number: 6191197Abstract: There are disclosed a gel or polymer composition which comprises 100 parts by weight of a polymer blend component comprising 1 to 90% by weight of a poly(vinyl aromatic hydrocarbon) polymer having a syndiotactic configuration and 99 to 10% by weight of a rubbery elastomer and at least 30 parts by weight of an extender oil or a low molecular weight organic component. These gel compositions have super soft properties, heat resistance, and/or damping properties.Type: GrantFiled: September 23, 1996Date of Patent: February 20, 2001Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Xiao-Liang Luo, Frank J. Clark, Hideo Takeichi, James E. Hall, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
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Patent number: 6093758Abstract: Incorporation of phosphate and phosphonate units into the side groups of aryloxyphosphazenes, at both the polymer and cyclic trimer levels, is disclosed. Phosphorylated cyclic trimers are utilized as flame-retardant additives to polystyrene.Type: GrantFiled: June 16, 1999Date of Patent: July 25, 2000Assignee: The Penn State Research FoundationInventors: Harry R. Allcock, Jonathan R. Taylor
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Patent number: 6093759Abstract: Flame-retardant thermoplastic molding compositions compriseA) from 5 to 99% by weight of a thermoplastic polymer,B) from 0.1 to 50% by weight of a phosphazene of the general formula I(PN.sub.2-x H.sub.1-y).sub.z Iwhere the numerical values of x, y and z, independently of one another, are as follows:1>x>0.051>y>0.05z>1, andC) from 0 to 70% by weight of other additives and processing aids,where the total of the percentages by weight of components A) to C) is 100%.Type: GrantFiled: October 15, 1998Date of Patent: July 25, 2000Assignee: BASF AktiengesellschaftInventors: Brigitte Gareiss, Hans-Michael Schneider, Martin Weber
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Patent number: 6087423Abstract: Salts of 1-hydroxydihydrophosphole oxides and 1-hydroxyphospholane oxides and use thereof as flame retardants. The salts of 1-hydroxydihydrophosphole oxides and 1-hydroxyphospholane oxides are useful as flame retardants, especially for plastics such as polyester or polyamide. The aluminum salts are preferred.Type: GrantFiled: March 3, 1997Date of Patent: July 11, 2000Assignee: Ticona GmbHInventors: Hans-Jerg Kleiner, Winfried Budzinsky, Gunther Kirsch
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Patent number: 5969015Abstract: Compositions, comprising (i) a halogen-containing polymeric material, and(ii) at least one phosphite of formula I ##STR1## wherein n is a number from 1 to 6,R is a divalent linking group of formulae as defined herein as well as of novel compounds of formula I and their use as stabilisers.Type: GrantFiled: September 10, 1997Date of Patent: October 19, 1999Assignee: Witco Vinyl Additives GmbHInventors: Horst Zinke, Karl Josef Kuhn, Wolfgang Wehner
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Patent number: 5916938Abstract: The present invention relates to a solution of a polyacrylate resin in one or more organic solvents, containing one or more phosphites, characterized in that the solution contains from 0.05 to 1.0% by weight, based on the solids content of the acrylate resin solution, of one or more phosphites and in that the phosphite has been added, either partially or entirely, after the polymerization reaction, at a temperature below the polymerization temperature.The present invention further relates to coating compositions which contain these polyacrylate resin solutions, their use in processes for producing a multilayer protective and/or decorative coating on a substrate surface, and the use of the coating compositions in the automotive refinishing sector.Type: GrantFiled: January 15, 1997Date of Patent: June 29, 1999Assignee: BASF Coatings AGInventors: Michael Brunnemann, Heinz-Peter Rink, Harald Borgholte, Werner-Alfons Jung, Peter Hoffmann
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Patent number: 5811470Abstract: Compositions and methods are described wherein a styrenic polymer is rendered flame retardant by incorporation therein before, during or after its formation, a combination of (a) at least one organic phosphorus additive that (i) is halogen-free, and (ii) is composed solely of carbon, hydrogen, and phosphorus, and optionally and preferably one or more of the elements nitrogen, oxygen, and sulfur; and (b) elemental sulfur; in proportions such that (i) the sulfur content from b) is less than 2 percent by weight of the weight of the styrenic polymer plus the weight of a) and b), and (ii) the styrenic polymer plus ingredients a) and b) can provide test specimens which exhibit an LOI of at least 24 if tested in accordance with ASTM Standard Test Method D 2863-87.Type: GrantFiled: August 27, 1997Date of Patent: September 22, 1998Assignee: Albemarle CorporationInventors: John C. Prindle, Jr., Christopher J. Nalepa, Govindarajulu Kumar
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Patent number: 5756559Abstract: A composition and method of treating a dental tooth surface and adhering a restorative material to the treated dental tooth surface is provided. A liquid composition is applied to at least the portion of the tooth to form a treated surface. The composition includes at least 50 percent by weight of a volatile organic solvent, at least 15 percent by weight of one or more polymerizable acrylate compounds and an effective amount of a photoinitiator. At least a portion of the polymerizable compounds are multifunctional polymerizable compounds having at least three acrylate moieties. The polymerizable compounds are substantially soluble in the solvent. The composition is adapted to form a polymeric material which is adapted to adhere to dentin with a bond strength of at least 12 Mpa. Restorative material is then adhered to the treated surface with a bond strength of at least about 12 MPa.Type: GrantFiled: April 4, 1996Date of Patent: May 26, 1998Assignee: Dentsply Research & DevelopmentInventors: Gordon Blackwell, Chin-Teh Huang
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Patent number: 5703149Abstract: A process is described for the preparation of olefin polymers by polymerization over a transition metallocene catalyst with the addition of at least one phosphorus(III) compound, sterically hindered amine, sterically hindered phenol or acid scavenger, alone or in combination with one another; the polymers which can be obtained in this way are of outstanding stability.Type: GrantFiled: June 24, 1996Date of Patent: December 30, 1997Assignee: Ciba Specialty Chemicals CorporationInventors: Bruno Rotzinger, Thomas Schmutz, Martin Brunner, Werner Stauffer
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Patent number: 5652285Abstract: The invention provides a thermosettable resin composition comprising (a) one or more thermosettable resins, (b) one or more of curatives, hardeners, and optionally catalysts for the curing of the thermosettable resin in an amount sufficient for the cure of the thermosettable resin, and (c) an effective amount of at least one non-functional cyclophosphazene to render said resin composition, when cured, flame retardant. The non-functional cyclophosphazene contains aryloxy group substitution and does not covalently bond with the resin network. As a result, the non-functional cyclophosphazene does not negatively impact key performance properties such as modulus, thermal stability, dielectric behavior, fracture toughness, moisture uptake or adhesion.Type: GrantFiled: February 8, 1996Date of Patent: July 29, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: William D. Coggio, William J. Schultz, Dennis C. Ngo, Robert D. Waid, Valerie M. Juvin-Pedretti
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Patent number: 5639808Abstract: The invention provides a thermosettable resin composition comprising (a) one or more thermosettable resins, (b) one or more of curatives, hardeners, and optionally catalysts for the curing of the thermosettable resin in an amount sufficient for the cure of the thermosettable resin, and (c) an effective amount of at least one non-functional cyclophosphazene to render said resin composition, when cured, flame retardant. The non-functional cyclophosphazene contains aryloxy group substitution and does not covalently bond with the resin network. As a result, the non-functional cyclophosphazene does not negatively impact key performance properties such as modulus, thermal stability, dielectric behavior, fracture toughness, moisture uptake or adhesion.Type: GrantFiled: February 8, 1996Date of Patent: June 17, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: William D. Coggio, William J. Schultz, Dennis C. Ngo, Robert D. Waid, Valerie M. Juvin-Pedretti
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Patent number: 5488079Abstract: A polyolefinic composition comprising as component a) one or more compounds of formula I to III ##STR1## in which each R.sub.1 independently is selected from linear or branched C.sub.1-30 alkyl, C.sub.5-12 cycloalkyl, C.sub.2-24 alkenyl, C.sub.2-18 alkoxyalkyl, C.sub.2-19 methoxyalkanoyl, C.sub.7-30 alkaryl, C.sub.7-30 aralkyl, C.sub.4-24 heteroarylR.sub.4 and R.sub.5 independently are selected from hydrogen, C.sub.1-30 alkyl C.sub.5-12 cycloalkyl, C.sub.6-24 aryl, C.sub.7-30 alkaryl or C.sub.7-30 aralkyl;A is a direct bond, a group --(P--R.sub.1).sub.p -- or an n-valent aliphatic or aromatic residue; provided that when n is 2 then A is --CH.sub.2 -- or C.sub.5-30 alkylene;m is 3 to 12;n is 2 to 5;p is 1 to 12; andcomponent b) a polyolefin which has been produced in the presence of a Ziegler or metallocene type catalyst which has not been removed.Type: GrantFiled: October 17, 1994Date of Patent: January 30, 1996Assignee: Sandoz Ltd.Inventor: Peter Staniek
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Patent number: 5416143Abstract: The invention relates to readily processible polyamide molding compounds which have very good mechanical and electrical properties as well as high surface quality and are based on polyamide, magnesium hydroxide and polyhydroxy compounds of the Novolak type.Type: GrantFiled: December 27, 1993Date of Patent: May 16, 1995Assignee: Bayer AktiengesellschaftInventors: Aziz El Sayed, Edgar Ostlinning, Karsten-Josef Idel, Dieter Freitag
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Patent number: 5387655Abstract: Described is a composition with integral intumescence properties, the composition being obtained by combining: a) one or more aminoformaldehyde resins and b) a mixture of mono- and di- esters of orthophosphoric acid with one or more polyols, the average hydroxy-group content of the polyols being at least 40% by weight, the molar ratio of mono-ester to di-ester not exceeding 12:1 and the phosphorus content of the mixture being at least 10% by weight.Type: GrantFiled: July 28, 1993Date of Patent: February 7, 1995Assignees: Chemische Fabrik Budenheim, Rudolf A. OetkerInventor: Charles D. Aslin
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Patent number: 5242960Abstract: The invention relates to flameproofed non-drip polyamide molding compounds which contain certain quantities ofa) phosphinic acid esters of polyphenols still containing free phenolic OH groups,b) zinc borate and/or zinc oxide,c) thermoplastics having a predominantly aromatic main chain, optionallyd) antidripping agents (for example polyfluoroethylene polymers) and, optionally,reinforcing materials and/or mineral fillers and other additives for processing, stabilization, etc.Type: GrantFiled: January 13, 1992Date of Patent: September 7, 1993Assignee: Bayer AktiengesellschaftInventors: Edgar Ostlinning, Aziz El Sayed, Klaus Sommer, Hans G. Frohlen
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Patent number: 5145941Abstract: The invention is a polyester and a method for producing a polyester fiber which has a combination of flame resistance and low pilling properties. The method comprises forming a polyester fiber made from a blend of two polyester polymers, one polyester polymer containing an oxysilicon compound and the second polyester polymer containing pentaerythritol and a phosphinic acid in the amount between 0.5 and 20 mole percent of the terephthalate acid and monomer. In particular, the invention also comprises the enhanced fiber formed by the process, as well as the fabrics having a pilling of about 3 to less than 5 as measured in accordance with ASTM D-3512-82.Type: GrantFiled: November 22, 1991Date of Patent: September 8, 1992Assignee: Hoechst Celanese CorporationInventors: Jerry T. Munday, Theodore D. Meiss
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Patent number: 5102931Abstract: The subject of the invention is flameproofed, non-dripping polyamide moulding compounds which contain specific amounts of the following:A) Phosphinic acid esters of polyphenols based on phenolaldehyde/ketone condensates,B) Anti-dripping agents (such as polyfluoroethylene polymers or aramides),C) Zinc borate,D) Thermoplastics with a predominantly aromatic main chain and a high thermal deflection temperature (Vicat B.gtoreq.180.degree. C.),and, if applicable, reinforcing agents and other additives for flameproofing and processing.Type: GrantFiled: July 23, 1990Date of Patent: April 7, 1992Assignee: Bayer AktiengesellschaftInventors: Karl Fuhr, Friedemann Muller, Karl-Heinz Ott, Aziz El-Sayed, Peter-Rolf Muller, Martin Wandel
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Patent number: 5045579Abstract: The preparation and use of unique, environmentally benign, economical and selectively modified polynorbornene sponges are described as selective absorbents for hydrocarbons, their halogenated analogs and selected oxygenated derivatives thereof. The modified polynorbornene material contains organo-titanium phosphates or oligophosphates and is environmentally stable for extended periods, easy to use, efficient and absorbate-retentive. Exhausted product will not drip or exude absorbate under conventional landfill disposal conditions and will produce only minimal ash when incinerated.Type: GrantFiled: May 18, 1990Date of Patent: September 3, 1991Assignee: Liquid Waste CorporationInventor: Gerald Sugerman
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Patent number: 5041478Abstract: A resin composition for printed circuit board and the printed circuit board in which said resin composition is used as substrate, said resin composition comprising one or more cyclic phosphonitrile compounds represented by the general formula [I] and/or [II] and an aromatic maleimide compound and/or an aromatic amine: ##STR1## wherein at least two of R's (R.sub.1 to R.sub.Type: GrantFiled: June 6, 1990Date of Patent: August 20, 1991Assignee: Hitachi, Ltd.Inventors: Katuo Sugawara, Akio Takahashi, Masahiro Ono, Toshikazu Narahara
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Patent number: 5021488Abstract: The invention relates to flameproofed, non-dripping polyamide moulding compositions which contain certain amounts ofA) phosphinic acid esters of polyphenols based on phenol-aldehyde/ketone condensates,B) antidripping agents (such as polyfluoroethylene polymers or aramides) andC) zinc borateand if appropriate reinforcing agents and other additives for flameproofing and for processing etc.Type: GrantFiled: July 23, 1990Date of Patent: June 4, 1991Assignee: Bayer AktiengesellschaftInventors: Karl Fuhr, Friedemann Muller, Karl-Heinz Ott, Aziz El-Sayed, Peter-Rolf Muller, Martin Wandel
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Patent number: 4940772Abstract: A polyester, wherein pendent phosphorus atoms are bound to the main chain of the polyester, having an excellent flame resistance and a high intrinsic viscosity can be stably produced without deteriorating the properties of said polyester by preliminarily copolymerizing a polyester with a specific unsaturated compound and then reacting the unsaturated bond thus-formed with a specific phosphorus compound having a P-H bond.Type: GrantFiled: November 20, 1989Date of Patent: July 10, 1990Assignee: Nippon Ester Co., Ltd.Inventors: Tetsuo Matsumoto, Keizo Tsujimoto, Katsuto Matsuzawa, Shunichiro Hamada, Kouzi Shinogi, Satomi Nagai, Takayuki Imamura, Akiko Kuroyanagi
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Patent number: 4929393Abstract: Various 1,4-disubstituted-2,3,5,6-tetrohydroxy-1,4-diphosphorinanes, their oxides and sulfides, methods for the production thereof, and flame-retarded compositions of matter containing them, are disclosed.Type: GrantFiled: May 22, 1989Date of Patent: May 29, 1990Assignee: Cyanamid Canada Inc.Inventors: Allan J. Robertson, James B. Gallivan
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Patent number: 4863977Abstract: This invention provides hardenable compositions useful as construction media for a wide range of applications. Particular utility is found in the dental and medical arts where such compositions are highly suitable for the formation and construction of denture base, denture baseplates, denture liners, denture repair, custom trays, veneering for crowns and bridgework, artificial teeth, veneers and repair for natural teeth, and tooth restorative fillings. Such materials having improved impact strengths and elastic moduli when hardened are disclosed which include rubber-modified polymer.Type: GrantFiled: November 10, 1987Date of Patent: September 5, 1989Assignee: Dentsply Research & Development Corp.Inventors: Louis H Tateosian, W. Donald Wilson
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Patent number: 4689015Abstract: The invention relates to a dental composition which is suitable as a fissure sealant, dental glaze, bonding agent or orthodontic adhesive and which is a mixture of a selected vinyl urethane prepolymer, selected comonomer, and visible light cure catalyst comprising an organic amine and selected .alpha.-diketone.Type: GrantFiled: October 22, 1985Date of Patent: August 25, 1987Assignee: Imperial Chemical Industries PLCInventors: Robert Denyer, Michael S. Fortuin
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Patent number: 4623687Abstract: A bicyclic phosphine oxide composition comprising the grouping ##STR1## wherein P is phosphorus, O is oxygen, A is an alkylene chain of 2 to 12 carbon atoms, Z is a polar group and R represents the carbon atoms in a phosphorus-containing ring formed by alkylating phosphine with an ethylenically unsaturated alicyclic hydrocarbon having a pendant olefin group.Type: GrantFiled: March 1, 1985Date of Patent: November 18, 1986Assignee: FMC CorporationInventor: Joseph Green
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Patent number: 4503178Abstract: Cyclic phosphine oxides of the formula: ##STR1## wherein P is phosphorus, O is oxygen, A is an alkylene chain of 2 to 12 carbon atoms, Z is a polar group and R represents the carbon atoms in a phosphorus-containing ring formed by alkylating an ethylenically unsaturated cyclic hydrocarbon with phosphine.The cyclic phosphine oxides are useful as flame retardants for styrene modified polyphenylene ether resins.Type: GrantFiled: April 26, 1984Date of Patent: March 5, 1985Assignee: FMC CorporationInventor: Joseph Green
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Patent number: 4405738Abstract: Polyester polymers and copolyester polymers incorporating flame retardant amounts of cyclotri (or tetra) phosphazenes. These cyclotri (or tetra) phosphazenes can be added at the start of ester interchange, prior to, for example polycondensation and conventional melt spinning, or if desired, after polycondensation but before melt spinning. Specific examples of cyclotriphosphazenes and cyclotetraphosphazenes are hexa(dialkylphosphinylmethyleneoxy)cyclotriphosphazene, octa(dialkylphosphinylmethyleneoxy)cyclotetraphosphazene, tris(alkylphosphinyldimethyleneoxy)cyclotriphosphazene, tetra(alkylphosphinyldimethyleneoxy)cyclotetraphosphazene, hexa(dialkylphosphinylmethylene)cyclotriphosphazene, and octa(dialkylphosphinylmethylene)cyclotetraphosphazene.Type: GrantFiled: March 5, 1982Date of Patent: September 20, 1983Assignee: Akzona IncorporatedInventor: Gerald W. McNeely
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Patent number: 4348495Abstract: Phosphorous acid esters obtained by reacting bisphenols with phosphorous trihalogenide or triphosphite and optionally or mono- or polyhydroxy compound are especially useful for stabilizing polyamides.Type: GrantFiled: September 22, 1980Date of Patent: September 7, 1982Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Buysch, Bert Brassat, Erich Eimers, Karl H. Hermann
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Patent number: 4340529Abstract: In an adhesive having two curable components designed to be coated in separate layers on one or more of two surfaces to be joined, and cured upon contact of the layers with each other, one component is a curable liquid primer having a viscosity of at least 800 cps but no more than about 50,000 cps at 23.degree. C., and the second component is a paste having a viscosity of at least 100,000 cps at 23.degree. C. The primer is formulated with a curable liquid monomer component of which at least 30% is an alkoxy alkyl methacrylate, any balance of curable monomer in the primer comprising monomer that is capable of copolymerizing with the first-named monomer and/or cross-linking with it. Also covers the method for joining together two irregular surfaces, utilizing such an adhesive formulation. Particularly intended for orthodontic adhesive applications.Type: GrantFiled: April 11, 1980Date of Patent: July 20, 1982Assignee: Lee Pharmaceuticals, Inc.Inventors: Henry L. Lee, Jr., Giovanni Nolet
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Patent number: 4339376Abstract: A highly heat resistant thermoplastic resin composition having high oil-resistance which contains(a) polyphenylene ether resin,(b) a copolymer comprising a vinyl aromatic compound and an .alpha.,.beta.-unsaturated dicarboxylic acid anhydride as components, or a copolymer comprising a vinyl aromatic compound and an imide compound of an .alpha.,.beta.-unsaturated dicarboxylic acid as components, and(c) polyamide,and, if desired,(d) an impact-resistant-reinforcing agent.Type: GrantFiled: July 28, 1981Date of Patent: July 13, 1982Assignee: Asahi-Dow LimitedInventors: Hideo Kasahara, Kunio Fukuda, Hiroshi Suzuki