Aluminum- Or Heavy Metal-containing Reactant Patents (Class 528/166)
  • Patent number: 9403951
    Abstract: The present invention is directed to a flame-retardant polyester having a structure of formula (I): where each A? is, independently, a residue of a diol, each B? and each B? may be identical or different and are, independently, a residue of a saturated or unsaturated anhydride or acid, and C? and C? may be identical or different and are independently selected from hydrogen, a residue of an epoxy acrylate compound or a residue of an epoxy silicon-containing compound, with the proviso that C? and C? are not both hydrogen, where a is an integer of from 1 to 30, b is an integer of from 1 to 30, and c is an integer of from 1 to 15, and where the flame-retardant polyester has an acid value of from 20 to 40. The present invention is also directed to a process for preparing the flame-retardant polyester and a composition including the same.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: August 2, 2016
    Assignee: ETERNAL MATERIALS CO., LTD.
    Inventor: Pin-Chih Yu
  • Publication number: 20140272158
    Abstract: Disclosed is a semiconductor polymer having the following structure:
    Type: Application
    Filed: March 6, 2014
    Publication date: September 18, 2014
    Applicant: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Timothy P. Bender, BenoƮt H. Lessard
  • Publication number: 20130306950
    Abstract: A semiconducting polymer and electronic devices comprising such polymer, in which the polymer has one or more repeat units, a first of the repeat units having the structure wherein R12 to R17 independently comprise H or a polyether group having at least five ethoxy repeat units, and in which at least one of R12 to R17 has a polyether group.
    Type: Application
    Filed: January 11, 2012
    Publication date: November 21, 2013
    Applicants: SUMITOMO CHEMICAL COMPANY LIMITED, CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventor: Helen Middleton
  • Patent number: 8329929
    Abstract: A metal complex represented by the following formula (1): wherein R1 to R6 each independently represent a hydrogen atom or a substituent; Y1 and Y2 each independently represent any one of the following groups: wherein R? represents a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms; P1 and P2 each represent a group of atoms necessary for forming a heterocyclic ring together with Y1 or Y2 and the two carbon atoms at a position adjacent to Y1 or Y2; P1 and P2 may be linked to each other to form a ring; M represents a transition metal element or typical metal element; m represents 1 or 2; X represents a counter ion or a neutral molecule; n represents the number of X's in the complex, and an integer of 0 or more; and Q1 and Q2 each independently represent an aromatic heterocyclic group.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: December 11, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadafumi Matsunaga, Nobuyoshi Koshino, Hideyuki Higashimura
  • Patent number: 7973109
    Abstract: A process for producing a crosslinked type or non-crosslinked type layered metal phosphonate compound including a reaction step of reacting two or more members selected from organic diphosphonic acids or monophosphonic acids, or derivatives thereof having predetermined conditions and a metal source capable of forming an ion of a hexacoordinate metal atom as a central atom (M) of a metal oxide octahedron upon reaction under the presence of a sulfuric acid catalyst, a crosslinked or non-crosslinked metal phosphonate compound obtained by the process, as well as a stock solution used for the synthesis of the crosslinked or non-crosslinked type layered metal phosphonate compound described above.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: July 5, 2011
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Shin-ichi Ogata, Yoshiaki Fukushima, Masaya Kawasumi
  • Publication number: 20110108807
    Abstract: A polymer useful in an optoelectronic device comprises structural unit of formula I: wherein R1 is, independently at each occurrence, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; a is, independently at each occurrence, an integer ranging from 0-4; Ar1 is aryl or heteroaryl; Ar2 is fluorene; R2 is alkylene, substituted alkylene, oxaalkylene, CO, or CO2; R3, R4 and R5 are independently hydrogen, alkyl, alkoxy, alkylaryl, aryl, arylalkyl, heteroaryl, substituted alkyl; substituted alkoxy, substituted alkylaryl, substituted aryl, substituted arylalkyl, or substituted heteroaryl; and L is derived from phenylpyridine, tolylpyridine, benzothienylpyridine, phenylisoquinoline, dibenzoquinozaline, fluorenylpyridine, ketopyrrole, 2-(1-naphthyl)benzoxazole)), 2-phenylbenzoxazole, 2 phenylbenzothiazole, coumarin, thienylpyridine, phenylpyridine, benzothienylpyridine, 3 methoxy-2-phenylpyridine, thienylpyridine, phenylimine, vinylpyridine, pyridylnaphthalene, pyridylpyrro
    Type: Application
    Filed: November 10, 2009
    Publication date: May 12, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Qing Ye, Jie Lu, Kelly Scott Chichak
  • Patent number: 7851579
    Abstract: Compositions comprising at least one phosphorescent organometallic compound and a polymer comprising structural units of formula II are useful in organic light emitting devices wherein R1, R2, and R4 are independently at each occurrence a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; wherein R3 and R5 are independently selected from the group consisting of hydrogen, triphenylsilyl, t-butyl, mesityl, diphenyl phosphine oxide, and diphenyl phosphine sulfide; and a, b and d are independently 0 or an integer ranging from 1 to 3.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: December 14, 2010
    Assignee: General Electric Company
    Inventors: Qing Ye, Jie Liu, Kyle Erik Litz
  • Publication number: 20100048826
    Abstract: The present invention provides a bifunctional phenylene ether oligomer compound having a thermosetting functional group at each terminal, an epoxy resin containing the above oligomer compound and a use thereof. That is, it provides a sealing epoxy resin composition for sealing an electric part, an epoxy resin composition for laminates, a laminate, a printed wiring board, a curable resin composition and a photosensitive resin composition. The resins and resin compositions of the present invention are used in electronics fields in which a low dielectric constant, a low dielectric loss tangent and high toughness are required and also used for various uses such as coating, bonding and molding.
    Type: Application
    Filed: October 30, 2009
    Publication date: February 25, 2010
    Inventors: Kenji Ishii, Yasumasa Norisue, Kiyonari Hiramatsu, Makoto Miyamoto, Makoto Yamazaki, Daisuke Ohno
  • Publication number: 20090297911
    Abstract: A polymer electrolyte membrane includes a porous base membrane and electrolytes dispersed within the pores of the base membrane. The electrolytes include metal oxide compounds having acid functionality. A process for making the membrane is also provided. The membrane is compatible, durable, highly conductive, mechanically strong and dimensionally stable.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 3, 2009
    Inventors: David Roger MOORE, Hongyi Zhou, Joyce Hung, Ryo Tamaki, Hieu Minh Duong, Marianne Elisabeth Harmon
  • Publication number: 20090093607
    Abstract: A process for producing a crosslinked type or non-crosslinked type layered metal phosphonate compound including a reaction step of reacting two or more members selected from organic diphosphonic acids or monophosphonic acids, or derivatives thereof having predetermined conditions and a metal source capable of forming an ion of a hexacoordinate metal atom as a central atom (M) of a metal oxide octahedron upon reaction under the presence of a sulfuric acid catalyst, a crosslinked or non-crosslinked metal phosphonate compound obtained by the process, as well as a stock solution used for the synthesis of the crosslinked or non-crosslinked type layered metal phosphonate compound described above.
    Type: Application
    Filed: March 24, 2008
    Publication date: April 9, 2009
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shin-ichi Ogata, Yoshiaki Fukushima, Masaya Kawasumi
  • Patent number: 7060372
    Abstract: The present invention is generally directed to a polymeric metal complex comprising a polymeric material having a plurality of a first-type functional groups, wherein at least a portion of the functional groups are coordinated to at least one metal containing complex, polymeric-metal complex salts comprising at least one polymeric material having a plurality of first-type functional groups having a charge, and at least one metal complex having an opposite charge. It further relates to devices that are made with the polymeric metal complex or the polymeric-metal complex salt.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: June 13, 2006
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Michael Fryd, Vladimir Grushin, Norman Herron, Mookkan Periyasamy, Viacheslav A. Petrov, Nora Sabina Radu
  • Patent number: 6586554
    Abstract: This invention provides polyarylenes having a recurring unit shown by formula (I) or (II) below and a process for production thereof as well as these monomers: (wherein Ar1 and Ar2 are an arylene; R1 and R2 are C1-C20 hydrocarbon group, etc.; A1 and A2 are C1-C20 hydrocarbon group, etc.; and n is an integer of 2 or more); (wherein Ar1 and Ar2 are an arylene; R1 and R2 are C1-C20 hydrocarbon group, etc.; A1 and A2 are C1-C20 hydrocarbon group, etc.; and n is an integer of 2 or more) The polyarylenes of the invention find extensive applications as electrically conductive resins. The polyarylenes can be used also as resin compositions in a variety of formed shapes.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: July 1, 2003
    Assignee: Japan Science and Technology Corporation
    Inventor: Tamotsu Takahashi
  • Patent number: 6369183
    Abstract: A composition of matter, comprising: a chemically functionalized carboxylate-alumoxane that is functionalized with a chemically reactive substituent, and a reactive compound, wherein the chemically reactive substituent reacts with the reactive compound so as to link the carboxylate-alumoxane to the reactive compound and form a polymer matrix. The functional groups on the carboxylate-alumoxane can vary depending on the desired properties of the matrix. Also, the composition of matter may comprise a cross-linked matrix in which the cross-linked components consist of functionalized alumoxanes.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: April 9, 2002
    Assignee: Wm. Marsh Rice University
    Inventors: Ronald Lee Cook, Andrew Ross Barron, Kevin Joseph Gleason, David Brent MacQueen, Georgette Laila Siparsky, Yoshihiro Koide, Cullen Taylor Vogelson
  • Patent number: 5510428
    Abstract: Compositions (I), (II) and (III) comprising compounds having vinyl groups as side chains and epoxidized compositions (XI), (XII) and (XIII) thereof, which can be prepared by the various reaction combinations of (a) with (b) or (b)+(c), and or (d), where(a) is at least one compound having at least one vinyl group and one epoxy group in the molecule; (b) is at least one of a polybasic compound, an anhydride thereof, a polymer having carboxylic groups at terminals and a polymer having carboxylic groups as side chains; (c) is at least one organic compound having at least one active hydrogen atom; and (d) is at east one of an unsaturated monocarboxylic compound or an unsaturated monocarboxylic ester having a hydroxyl group.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: April 23, 1996
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Yoshiyuki Harano, Sozo Namai, Katsuyuki Maeda, Takaaki Murai
  • Patent number: 5386001
    Abstract: Polyarylene oxides and sulfides which are .pi.-arene complexed with transition metals are disclosed. Also disclosed is a process for making a polyarylene sulfide by reaction of a .pi.-arene complexed arylene dihalide with the dianion of an arylene dithiol. The complexed polymers are soluble in common organic solvents, and the polymer solutions can be used to make films and coatings or to encapsulate parts.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: January 31, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Alexa A. Dembek, Marianne Marsi
  • Patent number: 5350832
    Abstract: Polyarylene oxides and sulfides which are .pi.-arene complexed with transition metals are disclosed. Also disclosed is a process for making a polyarylene sulfide by reaction of a .pi.-arene complexed arylene dihalide with the dianion of an arylene dithiol. The complexed polymers are soluble in common organic solvents, and the polymer solutions can be used to make films and coatings or to encapsulate parts.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: September 27, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Alexa A. Dembek, Marianne Marsi
  • Patent number: 5276126
    Abstract: A method of planarizing topographical features on a substrate for subsequent coating of a radiation sensitive composition thereon comprising:(1) applying thereover a coating of a planarizing coating layer comprising a planarization layer of novolak resin made by the condensation reaction of an aldehyde source with a phenolic monomeric source comprising at least 25 mole percent of ortho-secondary butyl phenol and a suitable solvent; and(2) heating said coated substrate to remove essentially all of said solvent therefrom and cause said coating to reflow, thereby planarizing the topographical features.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: January 4, 1994
    Assignee: OCG Microelectronic Materials, Inc.
    Inventor: Robert F. Rogler
  • Patent number: 5128429
    Abstract: A method for the preparation of a variety of engineering polymers and copolymers, in particular aromatic polymers and copolymers which comprises reacting a stannylated reactant containing a first monomeric or polymeric moiety with an electrophilic reactant, usually a di(acid chloride) containing a second monomeric or polymeric moiety. The intermediate and second compound react by way of a condensation reaction to eliminate the tin and polymerise together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: July 7, 1992
    Assignee: Raychem Limited
    Inventors: Ian D. H. Towle, Partrick J. Horner
  • Patent number: 4999411
    Abstract: A method for the preparation of a variety of engineering polymers and copolymers, in particular aromatic polymers and copolymers which comprises reacting a stannylated reactant containing a first monomeric or polymeric moiety with an electrophilic reactant, usually a di(acid chloride) containing a second monomeric or polymeric moiety. The intermediate and second compound react by way of a condensation reaction to eliminate the tin and polymerise together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: March 12, 1991
    Assignee: Raychem Limited
    Inventors: Ian D. H. Towle, Patrick J. Horner
  • Patent number: 4960835
    Abstract: A method for the preparation of a variety of engineering polymers and copolymers, in particular aromatic polymers and copolymers which comprises reacting a stannylated reactant containing a first monomeric or polymeric moiety with an electrophilic reactant, usually a di(acid chloride) containing a second monomeric or polymeric moiety. The intermediate and second compound react by way of a condensation reaction to eliminate the tin and polymerise together the first and second moieties. Some novel polymers and copolymers can be prepared using this method.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: October 2, 1990
    Assignee: Raychem Limited
    Inventors: Ian D. H. Towle, Patrick J. Horner
  • Patent number: 4840977
    Abstract: Photosensitive iodonium polymers are provided useful as positive photoresists. The iodonium polymers can be converted to polymeric diaryl iodonium polyfluorometal and metalloid salts by a metathesis reaction. These polymeric iodonium polyfluorometal and metalloid salts can be used as a catalyst in combination with a copper compound cocatalyst to make heat curable compositions with cationically polymerizable materials such as an epoxy resin.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: June 20, 1989
    Assignee: General Electric Company
    Inventors: James V. Crivello, Julia L. Lee
  • Patent number: 4604433
    Abstract: The properties of a thermosetting furan based polymer are improved by incorporating therein at least one metal selected from the group consisting of niobium and/or tantalum.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: August 5, 1986
    Assignee: Hitco
    Inventor: Paul V. Mosher
  • Patent number: 4514555
    Abstract: A process for producing a high molecular weight organoaluminum polymer by using an organoaluminum compound, water and an organic acid.The organoaluminum polymer obtained herein is suitable for preparing fibers.
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: April 30, 1985
    Assignee: Idemitsu Kosan Company Limited
    Inventors: Isoji Taniguchi, Yoshiharu Kimura
  • Patent number: 4499260
    Abstract: Method of forming 4,4',4",4'"-tetraamino phthalocyanines by reducing 4,4',4",4'"-tetranitro phthalocyanines, polymerization of the metal tetraamino phthalocyanines with a tetracarboxylic dianhydride (preferably aromatic) or copolymerization with a tetracarboxylic dianhydride and a diamine (preferably also aromatic) to produce amic acids which are then dehydrocyclized to imides. Thermally and oxidatively stable polymers result which form tough, flexible films, etc.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: February 12, 1985
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Bappalige N. Achar, George M. Fohlen, John A. Parker
  • Patent number: 4465721
    Abstract: This invention is concern with a method of preparing a polycarbonate resin by passing a solution of dihydric phenol through a source of hydrogen and reacting the solution with carbon monoxide.This is a division of application Ser. No. 218,501, filed Dec. 22, 1980 and now U.S. Pat. No. 4,414,264 which is a continuation-in-part of application Ser. No. 32,663 filed Apr. 23, 1979 and now U.S. Pat. 4,243,779 .
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: August 14, 1984
    Inventor: Roy E. McAlister
  • Patent number: 4429105
    Abstract: Provided is a method for preparing aromatic copolyesters of hydroxy naphthoic acid and hydroxy benzoic acid via an in situ esterification technique whereby there is no isolation of the esterified monomers. The process comprises reacting the aromatic hydroxy acid monomers with an agent such as acetic anhydride in order to esterify the hydroxy moieties and subsequently polymerizing the esterified hydroxy monomers without isolation thereof, all in the presence of from about 5 to 50 ppm iron. Advantageously, the process allows one to obtain a wholly aromatic polyester of high inherent viscosity and good melt stability while avoiding the time consuming step of having to isolate the esterified hydroxy monomers prior to polymerization.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: January 31, 1984
    Assignee: Celanese Corporation
    Inventor: Larry F. Charbonneau
  • Patent number: 4410676
    Abstract: Phthalonitrile resins are obtained from polymerizing a phthalonitrile monr with a phenolic compound.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: October 18, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Teddy M. Keller
  • Patent number: 4409382
    Abstract: Oligomeric polyarylether sulfone phthalonitrile monomer represented by the ormula. ##STR1## wherein A represents an aromatic unit having from 1 to 3 attached or fused aromatic rings, said rings being attached directly or through an aliphatic group, sulfur, or oxygen; and n represents an average value from 1 to 100 prepared by reacting the product of an dialkaline metal bisphenate and 4,4'-dichlorodiphenyl sulfone with 4-nitrophthalonitrile.
    Type: Grant
    Filed: January 7, 1982
    Date of Patent: October 11, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Teddy M. Keller
  • Patent number: 4387208
    Abstract: Synthesis of new (lithiophenoxy)phosphazene high polymers is described whin polymers such as poly(dichlorophosphazene) are used as the starting material to prepare poly(organophosphazenes) by reaction thereof with sodium para-bromophenoxide. Poly(organophophazenes) thus obtained are used in a metal-halogen exchange reaction with n-butyllithium. The lithio derivatives thus obtained are used as reactive intermediates for the synthesis of polymers of formulas [NP(OC.sub.6 H.sub.4 X-p).sub.x (OC.sub.6 H.sub.4 Br)y].sub.n and [NP(OC.sub.6 H.sub.4 Li-p).sub.x (OPh).sub.y ].sub.n, where X is PPh.sub.2, PPh.sub.2 C.sub.4 H.sub.9.sup.+ Br.sup.-, SnPh.sub.3, AuPPh.sub.3, or COOH.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: June 7, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Harry R. Allcock, Timothy J. Fuller, Thomas L. Evans
  • Patent number: 4304896
    Abstract: The synthesis and subsequent polymerization of highly aromatized phthalonile monomers which contain phenoxy linkages having a substantially aromatic spacer moiety between the two terminal phthalonitrile groups is disclosed. The phthalonitriles are synthesized by a nucleophilic displacement of a nitro substituent, which is activated by the ring cyano groups on the aromatic ring, by a phenoxide containing unit. The phthalocyanine polymers have improved toughness, low water absorptivity and higher thermal and oxidative resistance than currently available polymers.
    Type: Grant
    Filed: August 19, 1980
    Date of Patent: December 8, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, James R. Griffith
  • Patent number: 4281069
    Abstract: A phenolic foam produced without the use of a conventional chlorofluorocarbon or hydrocarbon blowing agent is disclosed. The phenolic foam is produced as the reaction product of a mixture comprising a phenolic resole, a surfactant and stannous chloride. The phenolic foams can be formulated to contain a substantial proportion of closed cells.
    Type: Grant
    Filed: May 14, 1980
    Date of Patent: July 28, 1981
    Assignee: Armstrong World Industries, Inc.
    Inventor: Thomas G. Harris
  • Patent number: 4259471
    Abstract: Polyphthalocyanine resins are obtained by heating, at a temperature from ut 240.degree. C. to 305.degree. C., one or more bisorthodinitriles of the general formula: ##STR1## wherein x is from 1 to 10 and the phenyl groups are attached at the meta or para position. These resins have exceptional thermal stability and oxidative resistance making them particularly useful in high-temperature structural composites.
    Type: Grant
    Filed: May 24, 1979
    Date of Patent: March 31, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, James R. Griffith
  • Patent number: 4238601
    Abstract: A bisorthodinitrile of the formula: ##STR1## wherein R' and R" are perfluorinated alkyls having from 1 to 4 carbon at, and the phenyl groups are attached at the para position. A polyphthalocyanine resin is prepared by heating one or more of these bisorthodinitriles at a temperature from about 260.degree. C. to about 295.degree. C. These resins are particularly useful in high-temperature structural composites used in high-temperature, moist or corrosive environments.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: December 9, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, James R. Griffith
  • Patent number: 4234712
    Abstract: Polyphthalocyanine resins are obtained by heating one or more bisorthodiniles of the general formula: ##STR1## wherein R represents ##STR2## at temperature at or above the melting point thereof. The resins are useful in high-temperature structural composites and adhesives.
    Type: Grant
    Filed: September 14, 1979
    Date of Patent: November 18, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, James R. Griffith
  • Patent number: 4233431
    Abstract: The present invention relates to polycondensates of the formula 10, their use for absorbing metal ions of the transition elements of the periodic system and their use for the preparation of polymers containing metals of formula 11 which have e.g. improved resistance to heat and to chemicals compared to the corresponding polycondensates of formula 10.
    Type: Grant
    Filed: January 6, 1977
    Date of Patent: November 11, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten Idel, Hugo Vernaleken, Dieter Freitag, Gunther Reiff, Hans Rudolph
  • Patent number: 4223123
    Abstract: Polyphthalocyanine resins are obtained by heating, at a temperature from ut 260.degree. C. to about 295.degree. C., one or more bisorthodinitriles of the general formula: ##STR1## wherein R' is an alkyl radical with 1 to 6 carbon atoms, R" is hydrogen or an alkyl radical with 1 to 6 carbon atoms, and the phenyl groups are attached at the meta or para position. These resins are particularly useful in high-temperature structural composites.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: September 16, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, James R. Griffith
  • Patent number: 4195156
    Abstract: Flame retardant, thermoplastic copolycarbonates are made from dihydric aromatic compounds and dihydroxy benzene mono or di sulfonic acids in their alkali metal salt form. The copolycarbonates of this invention are more effective as fire retardants than the alkali metal salts of sulfonated polycarbonates prepared from dihydric aromatic compounds alone.
    Type: Grant
    Filed: October 13, 1978
    Date of Patent: March 25, 1980
    Assignee: The Dow Chemical Company
    Inventor: Roderick A. Bruckdorfer
  • Patent number: 4181791
    Abstract: Aralkylene phenol resins, curable to thermoset polymers are made by reacting an aralkylene ester of formula R'(CH.sub.2 OYR,).sub.a, where R' is aromatic, Y is carbonyl or sulphonyl and R' is alkyl or aryl, a is 2 or 3 with a molar excess of a phenol or mixture thereof with a non-phenolic aromatic compound.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: January 1, 1980
    Assignee: Albright & Wilson Limited
    Inventors: Alfred G. Edwards, Glyn I. Harris
  • Patent number: 4143031
    Abstract: There is described a family of copolyester compositions for producing heat nd flame resistant fibers, said compositions being prepared by polycondensating (A) an aromatic diacid, (B) a diol, (C) a tetrabrominated diol, (D) a derivative of a polyvalent metal, all said components being hereinbelow defined, the polycondensation process being carried out in several successive stages of copolycondensation of components (A), (B) and (C) until reaching a stable viscosity, then adding component (D), and stopping the reaction before the intrinsic viscosity of the composition decreases below a value proper for subsequent spinning.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: March 6, 1979
    Assignee: SNIA Viscosa Societa Nazionale Industria Applicazioni Viscosa S.p.A.
    Inventors: Aldemaro Ciaperoni, Giuseppe Quaglia, Gino Dall'Asta
  • Patent number: 4142035
    Abstract: The present invention relates to polycondensates of the formula 10, their use for absorbing metal ions of the transition elements of the periodic system and their use for the preparation of polymers containing metals of formula 11 which have e.g. improved resistance to heat and to chemicals compared to the corresponding polycondensates of formula 10.
    Type: Grant
    Filed: August 17, 1977
    Date of Patent: February 27, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten Idel, Hugo Vernaleken, Dieter Freitag, Gunther Reiff, Hans Rudolph
  • Patent number: 4110540
    Abstract: A process for the preparation of multinuclear phenols alkylated in the nucleus, wherein bisphenol A is reacted with a phenyl alkenyl compound in the presence of a catalytic quantity of aluminium phenolate and resols obtained from said alkylated phenols.
    Type: Grant
    Filed: July 27, 1976
    Date of Patent: August 29, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dieter Freitag, Erhard Tresper, Rolf Kuchenmeister, Wolfgang Beer