Three Oxygen Atoms Are Directly Bonded To Three Nuclear Carbon Atoms Of The Nitrogen Ring, E.g., (iso) Cyanurate, Etc. Patents (Class 524/101)
  • Patent number: 6110559
    Abstract: New plastic articles are disclosed and claimed having flame retardant properties which contain a core of a plastic polymeric material (thermoplastic, thermoset, rigid foam or semi-flexible foam polymeric material) which is coated with a protective, flame retardant layer comprising a mixture of a thermoplastic polymeric material and a flame retardant, char-forming, intumescent system. The new articles are suitable for the manufacture of e.g. rods, beams, pipes, hoses, non-tubular profiles and panels which are useful in various industries such as the building, automotive and mining industries.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: August 29, 2000
    Assignee: Solutia Inc.
    Inventor: Fran.cedilla.ois De Keyser
  • Patent number: 6103797
    Abstract: Thermoplastic molding compositions compriseA) from 30 to 97% by weight of a polyester,B) from 1 to 30% by weight of melamine cyanurate,C) from 1 to 30% by weight of at least one phosphorus-containing flame retardant which contains phosphorus in the valence state -1, -2 or -3,D) from 0 to 60% by weight of other additives and processing aids,where the total of the percentages by weight of components A) to D) is 100%.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: August 15, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Klatt, Brigitte Gareiss, Motonori Yamamoto
  • Patent number: 6077891
    Abstract: Damaged thermoplastics can be outstandingly stabilized by the use of a mixture comprising a) 0.05 to 20% by weight, based on the plastic to be stabilized, of at least one polyfunctional epoxide, b) 0.01 to 2% by weight, based on the plastic to be stabilized, of at least one sterically hindered phenol.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: June 20, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Heinz Herbst, Kurt Hoffmann, Rudolf Pfaendner
  • Patent number: 6022914
    Abstract: The present invention relates to a pressure-sensitive adhesive composition containing a non-halogen, non-intumescent flame-retardant system comprising at least one flame-retardant agent with the provisos that the flame-retardant system does not comprise Sb.sub.2 O.sub.3 or does not consist only of alumina trihydrate.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: February 8, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Petra Nowak, Robert D. Waid, William D. Coggio
  • Patent number: 6005033
    Abstract: Flame retardant compositions comprising a polymer of carbon monoxide, and at least one olefin, and a flame retarding quantity of a melamine compound.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: December 21, 1999
    Assignee: General Electric Company
    Inventors: Johannes Van Helmond, Gerrit De Wit
  • Patent number: 6001909
    Abstract: A composition, comprising(a) at least one tight cycloolefin,(b) a catalyst for the ring-opening metathesis polymerisation,(c) a filler, and(d) a silane of formula I ##STR1## wherein R is a polyvalent organic group having 2 to 100 carbon atoms, where one or more than one carbon atom can be replaced by O, S, N or Si atoms and Y.sub.1, Y.sub.2 and Y.sub.3 are each independently of one another C.sub.1 -C.sub.20 alkyl, C.sub.5 -C.sub.20 aryl, C.sub.6 -C.sub.20 aralkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.2 -C.sub.20 -alkoxyalkyl or C.sub.1 -C.sub.20 acyl, gives cured products having excellent mechanical and electrical properties and which is particularly suitable as encapsulating material for electrical and electronic components.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: December 14, 1999
    Assignee: Ciba Specialty Chemicals Corp.
    Inventor: Frans Setiabudi
  • Patent number: 5985962
    Abstract: A thermoset composition comprises a crosslinked blend of a metallocene copolymer of ethylene and an alpha olefin and a block copolymer of styrene and a diene. A medical article is made from the composition. The invention includes a method to make the composition and the article.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: November 16, 1999
    Assignee: Becton, Dickinson and Company
    Inventors: Christopher J. Knors, Lawrence A. Monahan
  • Patent number: 5980783
    Abstract: Stabilizer mixture comprising, for example, a compound of the formula ##STR1## and, for example, a compound of the formula ##STR2##
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: November 9, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Fran.cedilla.ois Gugumus
  • Patent number: 5952406
    Abstract: A fire retarded composition of polyamide, 2 to 5 weight % melamine cyanurate and about 0.07 to about 0.5 weight % phosphorus based on weight of the composition. Phosphorus is preferably provided as a copolyamide containing polymerized carboxyphosphinic acid compound.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: September 14, 1999
    Assignee: Solutia Inc.
    Inventors: Jawed Asrar, Carol R. Weiss
  • Patent number: 5948837
    Abstract: Flame retarding additives prepared by way of reaction of:A) one or more nitrogenous organic compounds of a defined formula;B) P.sub.2 O.sub.5 ;C) H.sub.2 O.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: September 7, 1999
    Assignee: Montell North America Inc.
    Inventors: Osvaldo Cicchetti, Alfonso Bevilacqua, Alberto Pagliari
  • Patent number: 5942565
    Abstract: An adhesive sheet is obtained by sheeting a claylike silicone composition comprising an organopolysiloxane, a filler, and an adhesive aid to a gage of 0.1 to 5 mm. The adhesive sheet is easy to handle and bondable to such adherends as metals and plastics to exert a high bond strength.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: August 24, 1999
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takehide Okami, Yuuki Sakurai
  • Patent number: 5936048
    Abstract: There are herein disclosed a method for preparing a modified resin which comprises thermal/reaction by the use of a norbornenyl group-containing compound typified by norbornenecarboguanamine or its derivative, a method for preparing an epoxy-modified resin which comprises the step of reacting the above-mentioned modified resin and an epoxide, a flame-retarding method, a thermal stabilization method, a compatibilizing method and a surface modification method which comprise utilizing the modified resin, as well as a coating resin composition and an adhesive resin composition containing the modified resin.According to the preparation methods of the present invention, the deterioration of a material scarcely occurs, and a functional group which is excellent in flame retardancy, thermal stability, compatibility and the like can be introduced to the resins.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: August 10, 1999
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tetsuya Oishi, Kazuo Sugazaki, Jin Suzuki
  • Patent number: 5872166
    Abstract: PVC stabilizers containing an overbased mixture of salts, such as magnesium and zinc salts, of unsubstituted and/or alkyl-substituted benzoic acid and optionally one or more fatty aliphatic acids, which contain a carbonate and/or silicate stabilizer, and which preferably also contain one or more polyols containing 2 to 10 hydroxyl groups, exhibit significant and unexpected reduction in the tendency to volatilize and form "fog" upon exposure of the formulation to moderately elevated temperatures, without loss of other desirable stabilization properties.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: February 16, 1999
    Assignee: Witco Corporation
    Inventors: Stuart D. Brilliant, Kook Jin Bae
  • Patent number: 5869554
    Abstract: Weatherable polycarbonate compositions (formulations or blends) comprise at least one of a piperazinone and piperazine dione based HALS, and at least one of a benzotriazole, benzophenone, triazine, oxanilide, and cyanoacrylate based UVA. The combination of these HALS and UVA exhibits a synergy that results in enhanced protection of the polycarbonate compositions by imparting photostability to the polycarbonate formulations, thereby reducing yellowing or other forms of light induced degradation.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: February 9, 1999
    Assignee: General Electric Company
    Inventors: James Edward Pickett, Randall Lee Carter
  • Patent number: 5852082
    Abstract: A polyolefin-based flame retardant resin composition which emits no hazardous gases on combustion or incineration after use, requires no additional costs for treating ash, and has excellent flame resistance and mechanical strength is provided.To 100 parts by weight of a polyolefin-based resin, 2 to 60 parts by weight of melamine cyanurate surface-treated by fine silica, and 1 to 30 parts by weight of a phosphoric acid ester are compounded.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: December 22, 1998
    Assignee: Aicello Chemical Co., Ltd.
    Inventors: Kouji Uchida, Miki Takahashi
  • Patent number: 5844026
    Abstract: A mixture of the compounds identified in the title, their pure isomers and alkane-bridged derivatives are particularly effective in stabilizing polymer compositions, particularly polyolefin compositions.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: December 1, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: James P. Galbo, Henry C. Grace, Douglas W. Horsey, Peter Solera, Rangarajan Srinivasan
  • Patent number: 5837760
    Abstract: Self-extinguishing thermoplastic polyurethanes contain, as flameproofing agents, one or more organic phosphates and/or one or more organic phosphonates, preferably as a mixture together with melamine derivatives.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: November 17, 1998
    Assignee: Elastogran GmbH
    Inventors: Christa Hackl, Friedhelm Lehrich, Gerhard Bittner
  • Patent number: 5804621
    Abstract: A polymeric composition in which (D) a phenol antioxidant having a specific skeleton 5-t-butyl-3-methyl-4-hydroxyphenyl, (C) a hindered amine photostabilizer having a molecular weight of not less than 400, and (D) a specific phosphorus compound dihydrooxaphosphaphenanthrene are included in (A) a polymeric compound. This polymeric composition is excellent in thermal oxidation degradation resistance and discoloration of coloring resistance in contacting with a combustion gas or the like.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: September 8, 1998
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenji Kimura, Motohiko Samizo
  • Patent number: 5804623
    Abstract: Recycled plastics, predominandy thermoplastics, from domestic, commercial and industrial waste can be stabilized against thermooxidative degradation by adding a combination of a sterically hindered phenol with an organic phosphite or phosphonite and a metal salt of a fatty acid.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: September 8, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Kurt Hoffmann, Heinz Herbst, Rudolf Pfaendner, Hans-Jurgen Sander, Franciszek Sitek
  • Patent number: 5789485
    Abstract: The present invention relates to a curable silicone composition comprising (A) an alkenyl-functional organopolysiloxane, (B) a siloxane-modified acrylic polymer, (C) an organohydrogenpolysiloxane, and (D) a hydrosilylation reaction catalyst. The curable silicone compositions of this invention cure into a highly oil-resistant and highly wear-resistant coating and are useful as base compositions for inks for silicone moldings, and are also useful for imparting release against pressure sensitive adhesives while maintaining a degree of printability.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: August 4, 1998
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Akihiko Kobayashi, Takayoshi Otomo, Hiroaki Yoshida
  • Patent number: 5762849
    Abstract: Plastic blends are provided that contain polyester and polycarbonate in combination with isocyanates or isocyanurates or their derivatives and bis(oxazoline) derivatives as additives, to give a molding material having improved hydrolytic resistance and improved chemical and mechanical properties.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: June 9, 1998
    Assignee: Huels Aktiengesellschaft
    Inventors: Detlef Argast, Heinz Peirick, Ralf Schueler
  • Patent number: 5684071
    Abstract: An additive having an improved dispersibility or adhesion property to thermoplastic resins and useful for imparting an excellent flame resistance and other properties thereto without deteriorating properties that the thermoplastic resins originally possess, such as mechanical, electrical and thermal properties and molding processability, which comprises a nitrogen-containing heterocyclic compound or its salt surface-treated with 0.1 to 50% by weight of a compound having at least two functional groups such as epoxy resin, acid anhydride or the like; and a flame retardant polyester resin composition comprising (A) a thermoplastic polyester, (B) a nitrogen-containing heterocyclic compound or its salt, (C) a compound having at least two functional groups and optionally (D) a phosphorus based flame retarder, which may be prepared by adding the component (B) previously surface-treated with the component (C) or separately adding the components (B) and (C) to the polyester (A).
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: November 4, 1997
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kenji Mogami, Masaaki Nakamura, Tadashi Koyama, Tomomi Nakashima, Akiyoshi Somemiya
  • Patent number: 5668199
    Abstract: Compounds possessing both a hindered amine moiety, such as a derivative of 2,2,6,6-tetramethylpiperidine, and a hydroxylamine moiety where the N-hydroxy group is not attached to a nitrogen atom in a piperidine ring are valuable stabilizers for protecting polymer compositions against the deleterious effects of actinic light and from the adverse effects of high temperature polymer processing environments.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 16, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Joseph Suhadolnik, Ramanathan Ravichandran, Valerio Borzatta, Graziano Vignali
  • Patent number: 5637632
    Abstract: This invention relates to a fire-resistant polyamide resin composition comprising 3 to 30 weight percent melamine cyanurate and 0.02 to 1 weight % of an amide compound or a fatty acid glyceride compound or a combination of said amide and glyceride compound.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: June 10, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Masahiro Nozaki
  • Patent number: 5633301
    Abstract: The present invention is a flame retardant polyketone polymer composition which comprises: (a) a bicyclic phosphorus flame retardant compound, such as one containing one or more pentaerythritol phosphate alcohol moieties, as exemplified by bis(pentaerythritol phosphate alcohol) carbonate; (b) an intumescent flame retardant compound containing nitrogen and phosphorus, such as melamine phosphate; and (c), optionally, a monophosphate ester compound to enhance the compatibility of the composition in the polymer substrate, such as a liquid aryl-group containing phosphate ester compound or melamine phosphate, and the monophosphate ester compound is triphenyl phosphate.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: May 27, 1997
    Assignee: Akzo Nobel NV
    Inventors: Paul Y. Moy, Gerald R. Alessio
  • Patent number: 5624982
    Abstract: A stabilizer system for the suppression of yellowing in styrenic polymers, consisting essentially of a benzotriazole such as 2-(2'-hydroxy-3',5'-di-tert-amylphenyl)benzotriazole, a hydroxybenzocyanurate such as tris-(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate and a hindered amine light stabilizer selected from the group consisting of (i) bis (2,2,6,6,-tetramethyl-4-piperidinyl) sebacate; and (ii) bis-(1,2,2,6,6-pentamethyl-4-piperdinyl) ester of (3,5-di-tert-butyl-4-hydroxybenzyl)-butyl malonate. Additionally a dialkyl thiodipropionate and a zinc dialkyldithiocarbamate may be included in the stabilizer system.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: April 29, 1997
    Assignee: Bayer Antwerpen SA/NV
    Inventors: Moh C. O. Chang, Chuan-Ju Chen, Allen R. Padwa
  • Patent number: 5623018
    Abstract: Disclosed is a thermoplastic resin composition comprising (A) an amorphous resin and further comprising, per 100 parts by weight of the amorphous resin,0.01 to 20 parts by weight of (B) an epoxy group-containing ethylene copolymer, and0.01 to 20 parts by weight of at least one member selected from the group consisting of (C) a polyfunctional compound and (D) a carboxylic acid metal salt, wherein the polyfunctional compound contains, per molecule, at least two identical or different functional groups selected from the group consisting of carboxyl group, amino group, carboxylic acid anhydride group and a unit represented by the formula (1) ##STR1## wherein X and Y are identical and each represents oxygen atom or sulfur atom, or one of X and Y is an oxygen atom and the other is a sulfur atom, or wherein the polyfunctional compound contains, per molecule, at least one unit represented by the formula (2) ##STR2## wherein Z represents oxygen atom or sulfur atom.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 22, 1997
    Assignees: Sumitomo Chemical Company, Ltd., Sumika A&L Inc.
    Inventors: Tadayuki Ohmae, Noboru Yamaguchi, Kenzo Chikanari, Kiyoshi Ogura
  • Patent number: 5623006
    Abstract: Triazine polymers obtained by reacting (a) monocyanate; and (b) dicyanate and/or prepolymers thereof are used in forming interconnection structures for bonding an integrated semiconductor device to a carrier substrate.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 22, 1997
    Assignee: International Business Machines Corporation
    Inventor: Konstantinos I. Papathomas
  • Patent number: 5580913
    Abstract: A process for the homogeneous incorporation of a stabilizers into a polycondensate in which the stabilizer is first applied to a finely divided solid polycondensate and the mixture is then revolved in the solid phase of the polycondensate, at temperatures of at least 80.degree. C.Products having an improved color and stability are obtained by this mild incorporation of stabilizer.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: December 3, 1996
    Assignee: Huels Aktiengesellschaft
    Inventors: Salih Mumcu, Hasso Daebel
  • Patent number: 5550241
    Abstract: The present invention relates to novel adducts of cyclic carbonyl monomers with substituted olefins, which also are useful as solution viscosifiers.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: August 27, 1996
    Assignee: Exxon Research and Engineering Company
    Inventor: Stanley J. Brois
  • Patent number: 5548006
    Abstract: An addition curing type silicone rubber composition comprising an aliphatic unsaturated group-containing organopolysiloxane, an organohydrogenpolysiloxane and a platinum series catalyst is further blended with a triazine or sulfide control agent to provide a composition which is stable and resistant against premature gelation at room temperature and thus has long-term storage stability. Heating causes the composition to be quickly vulcanized at an acceptable rate into a silicone rubber having satisfactory physical properties.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: August 20, 1996
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Satao Hirabayashi, Tsutomu Nakamura
  • Patent number: 5541242
    Abstract: The present invention provides an antistatic and flame retardant thermoplastic resin composition which comprises [A] 100 weight parts of a thermoplastic resin, [B] 2.0 to 40 weight parts of a bromine-containing organic flame retardant, and [C] 1.0 to 30 weight parts of a (meth)acrylamide-based copolymer and/or a (meth)acrylate ester-based copolymer each comprising 65 to 99 mole percent of an olefin-derived structural unit (I), 0 to 15 mole percent of a (meth)acrylate-derived structural unit (II) and 1 to 35 mole percent of a (meth)acrylamide-derived or (meth)acrylate ester-derived structural unit (III), as arranged linearly, with a weight average molecular weight of 1,000 to 50,000.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: July 30, 1996
    Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.
    Inventors: Yutaka Nakayama, Hideyuki Sumi, Hiroshi Hotta
  • Patent number: 5536766
    Abstract: A formaldehyde-free binding, impregnating or coating composition comprisesA) a polymer constituted to from 2 to 100% by weight of an ethylenically unsaturated acid or anhydride as comonomer, andB) at least one polyol selected froma triazine of the formula ##STR1## where R.sup.1 to R.sup.3 are each independently of the others a radical X[(C.sub.m H.sub.2m O).sub.n H] or N[(C.sub.m H.sub.2m O).sub.n H].sub.2 where X is NH, O or S, m is from 2 to 5 and n is from 1 to 10,a triazinetrione of the formula ##STR2## where R.sup.4 to R.sup.6 are each independently of the others a radical [(C.sub.m H.sub.2m O).sub.n H] where m is from 2 to 5 and n is from 1 to 10,a benzene or cyclohexyl derivative of the formula ##STR3## where R.sup.7 to R.sup.9 are each independently of the others a radical [X(C.sub.m H.sub.2m O).sub.n H], a radical N[C.sub.m H.sub.2m O).sub.n H].sub.2, a radical [Y(C.sub.m H.sub.2m O).sub.n H] or a radical [(C.sub.m H.sub.2m O).sub.n H] where X is NH, O or S, Y is bivalent C.sub.1 -C.sub.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Hermann Seyffer, Robert Rupaner, Erhard Gunther, Rainer Hummerich
  • Patent number: 5536765
    Abstract: Triazine polymers obtained by reacting (a) monocyanate; and (b) dicyanate and/or prepolymers thereof are used in forming interconnection structures for bonding an integrated semiconductor device to a carrier substrate.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 16, 1996
    Assignee: International Business Machines Corporation
    Inventor: Konstantinos I. Papathomas
  • Patent number: 5521236
    Abstract: Flame retarded and stabilized polyester composition contain: (a) a polyester resin derived from a cyclohexanemethanol and a carbocyclic acid; (b) a polyphosphate containing a bridging unit between the phosphate moieties therein which is derived from an arylene-containing diol; and (c) a stabilizer which is either:(i) a combination of a hindered phenol-substituted isocyanurate and an epichlorohydrin-bisphenol A reaction product; or(ii) a combination of an ester of a hindered phenol and oxidized polyethylene; when the arylene-containing diol is a monoarylene-containing diol, such as resorcinol or hydroquinone; or(iii) a hindered phenol-substituted isocyanurate; or(iv) a phenolic oxamide antioxidant; or(v) combination of a hindered phenol-substituted isocyanurate and an epichlorohydrin-bisphenol A reaction product; or(vi) combination of an ester of a hindered phenol and oxidized polyethylene;when the arylene-containing diol is a biarylene-containing diol with an alkylene bridging group between the two arylene gr
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: May 28, 1996
    Assignee: Akzo Nobel N.V.
    Inventors: Paul Y. Moy, Gerald R. Alessio
  • Patent number: 5508347
    Abstract: Disclosed is a thermoplastic resin composition comprising (A) an amorphous resin and further comprising, per 100 parts by weight of the amorphous resin,0.01 to 20 parts by weight of (B) an epoxy group containing ethylene copolymer, and0.01 to 20 parts by weight of at least one member selected from the group consisting of (C) a polyfunctional compound and (D) a carboxylic acid metal salt, wherein the polyfunctional compound contains, per molecule, at least two identical or different functional groups selected from the group consisting of carboxyl group, amino group, carboxylic acid anhydride group and a unit represented by the formula (1) ##STR1## wherein X and Y are identical and each represents oxygen atom or sulfur atom, or one of X and Y is an oxygen atom and the other is a sulfur atom, or wherein the polyfunctional compound contains, per molecule, at least one unit represented by the formula (2) ##STR2## wherein Z represents oxygen atom or sulfur atom.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: April 16, 1996
    Assignees: Sumitomo Chemical Company, Limited, Sumitomo Dow Limited
    Inventors: Tadayuki Ohmae, Noboru Yamaguchi, Kenzo Chikanari, Kiyoshi Ogura
  • Patent number: 5492948
    Abstract: A stabilizer system for the suppression of yellowing in styrenic polymers, consisting essentially of a benzotriazole such as 2-(2'-hydroxy-3',5'-di-tert-amylphenyl)benzotriazole, a hydroxybenzocyanurate such as tris-(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate and a condensation product of a N,N'-(2,2,6,6-tetramethylpiperidyl)-alkylenediamine and a 6-amino-2,4-dichloro-1,3,5-s-triazine such as the condensation product of N,N'-(2,2,6,6-tetramethylpiperidyl)hexamethylenediamine and 6-morpholino-2,4-dichloro-1,3,5-s-triazine. Additionally a dialkyl thiodipropionate and a zinc dialkyldithiocarbamate may be included in the stabilizer system.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: February 20, 1996
    Assignee: Monsanto Company
    Inventors: Moh C. O. Chang, Chuan-Ju Chen, Allen R. Padwa
  • Patent number: 5484830
    Abstract: Halogen-free, flame-resistant polymeric compositions contain an intumescence flameproofing system which comprises ammonium polyphosphate and an organophosphorus nitrogen component. The organophosphorus nitrogen component here is a phosphoric acid polyester according to the formula ##STR1## In these formulae, R is CH.sub.2, C.sub.2 H.sub.4 or C.sub.3 H.sub.6, while m is 1 to 10 and n is 1 to 6.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: January 16, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Horst Staendeke
  • Patent number: 5484827
    Abstract: The invention provides UV-stabilizer concentrates, which, relative to the total weight, consist ofA) 40 to 80 weight-% of at least one thermoplastic polyurethaneB) 10 to 30 weight-% 1,3,5-tri-glycidyl-isocyanurate andC) 10 to 30 weight-% 2-(2-hydroxy-3,5,-di-tert-amyl-phenyl)-2H-benzotriazole and/or 1,6-hexane-di-yl-bis-(3-(3-benzotriazole-N-yl)-4-hydroxy-5-tert-butyl)-phe nyl-propanoate.The invention also discloses a process for their production, and their utilization to stabilize TPU against UV- and thermal-degradation.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: January 16, 1996
    Assignee: BASF Elastogran GmbH
    Inventors: Frank Prissok, Friedhelm Lehrich, Gerhard Lehr, Aleksander Glinka, Douglas J. Harrop
  • Patent number: 5482985
    Abstract: Flameproofed thermoplastic polyamide molding materials containA) from 40 to 98% by weight of a thermoplastic polyamide,B) from 0.5 to 30% by weight of melamine cyanurate,C) from 0.5 to 50% by weight of magnesium hydroxide,D) from 1 to 50% by weight of a fibrous or particulate filler or of a mixture thereof which differs from B) and C) andE) from 0 to 30% by weight of conventional additives or processing assistants.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: January 9, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Petra Baierweck, Brigitte Gareiss, Karlheinz Ulmerich, Michael Gall, Manfred Koetting
  • Patent number: 5478873
    Abstract: The present invention provides a thermoplastic resin composition improved in stability at the time of processing which comprises (a) 100 parts by weight of a polyphenylene ether resin and (b) 0.001-15 parts by weight of at least one 4-amino-2,2,6,6-tetramethylpiperidyl compound represented by the following formula (I) or (II): ##STR1## wherein R.sub.1 represents a hydrogen atom, an oxygen atom (oxy radical), a hydroxyl group, an alkyl group, a cycloalkyl group, an allyl group, a benzyl group, an aryl group, an alkanoyl group, an alkenoyl group, an alkyloxy group or a cycloalkyloxy group;R.sub.2 represents a hydrogen atom, an alkyl group or ##STR2## where X represents a direct bond, --O-- or --NH--, R.sub.4 represents a direct bond, a straight or branched alkylene group, an alkylidene group or an arylene group, R.sub.5 represents a hydrogen atom, an alkyl group, an aryl group, ##STR3## n represents an integer of 1 to 4, p represents an integer of 2 to 6, andR.sub.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: December 26, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takashi Sanada, Hiroshi Hagimori, Tetsuo Yamaguchi, Motohiko Samizo
  • Patent number: 5476887
    Abstract: Flame retardant polyamide compositions are provided which contain melamine as the flame retardant. Flame retardant benefits are particularly realized by a composition which is a blend of melamine with a copolymer of polyamide-6,6 with another dicarboxylic acid, said copolymer having a melting point below 250.degree. C.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: December 19, 1995
    Assignee: E. I. Du Pont de Nemours & Company
    Inventor: Trevor L. Court
  • Patent number: 5468790
    Abstract: Triazine polymers are obtained reacting (a) monocyanate; and (b) dicyanate and/or prepolymers thereof. The polymers are useful in forming interconnection structures for forming an integrated semiconductor device to a carrier substrate.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: November 21, 1995
    Assignee: International Business Machines Corporation
    Inventor: Konstantinos I. Papathomas
  • Patent number: 5439957
    Abstract: A thermosetting coating composition suitable for use in the production of coated and precoated metals comprises (A) a thermosetting resin-hardener mixture which is a mixture of at least one base resin and at least one hardener, (B) an aluminum silicate colloid which is a mixture of Al.sub.2 O.sub.3 or Al(OH).sub.3 with SiO.sub.2, (C) a melamine cyanurate compound, and (D) a solvent in such an amount that the composition has a viscosity adequate for coating. Optionally a pigment and/or lubricant may be added.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: August 8, 1995
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Masaaki Takimoto, Hisataka Yamamoto, Kohichi Kimura
  • Patent number: 5414031
    Abstract: An intumescent nonhalogenated flame retardant polystyrene composition having high impact strength comprises polystyrene, ammonium polyphosphate, tris(2-hydroxyethyl) isocyanurate, hydrated zinc borate, and substantially amorphous elastomeric polymer.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: May 9, 1995
    Assignee: Polymer Product Company, Inc.
    Inventor: Carol L. Knox
  • Patent number: 5403896
    Abstract: New process for blowing molding polyamide compositions, employing a composition comprising a polyamide and one or more cyanate components, specifically cross-linking cyanates which form a triazine upon curing.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: April 4, 1995
    Assignee: AlliedSignal Inc.
    Inventors: Yash P. Khanna, Rakesh Kumar, John P. Sibilia
  • Patent number: 5401787
    Abstract: Improved flame retardant moisture curable insulation compositions are comprised of an ethylene-alkoxysilane copolymer, a halogenated anhydride and antimony trioxide provided. The compositions have good processability and can be moisture cured to provide products which meet all of the requirements for SAE J-1128 low tension primary cable. The halogenated anhydride imparts flame retardancy to the compositions and also promotes cure by catalyzing the hydrolysis/condensation reaction of the silane copolymer. Optionally there may be included in the composition antioxidants, silanol condensation catalysts, organic halogen containing flame retardant compounds and other conventional compounding ingredients.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: March 28, 1995
    Assignee: Quantum Chemical Corporation
    Inventor: Koksal Tonyali
  • Patent number: 5393813
    Abstract: By adding melamine cyanurate, polyoxymethylene is stabilized against acid attack, wherein in particular as little as under 3 parts of MCA per 100 parts of POM are effective. The weight loss of a stabilized POM under the action of acid may be less than 3% of that of an unstabilized POM. The product is useful in products which are exposed to acidic agents such as irrigation systems, dishwashers, sanitary installations.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: February 28, 1995
    Assignee: Degussa Aktiengesellschaft
    Inventors: Stephanie Schauhoff, Edwin Nun, Detlef Arnoldi
  • Patent number: 5369157
    Abstract: Thermoplastic compositions containing, per 100 parts by weight of a thermoplastic material containing at least one alkenyl aromatic hydrocarbon polymer or copolymer and, if required, at least one other thermoplastic of elastomeric resin:(a) from 5 to 30 parts by weight of melamine and melamine isocyanurate,(b) from 2 to 10 parts by weight of at least one polyol containing at least 4 hydroxyl functions per molecule, and(c) from 0 to 14 parts by weight of at least one organic ester of phosphoric acid.A process for their preparation consists of mixing the various constituents at a temperature higher than the softening point of the alkenyl aromatic hydrocarbon polymer or copolymer, between 150.degree. and 200.degree. C., for a duration between 1 and 5 minutes in an internal mixer or extruder.Articles obtained by transformation of the above compositions are formed having low combustion rates.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: November 29, 1994
    Assignee: Atochem
    Inventor: Rene Wirth
  • Patent number: RE35004
    Abstract: The present invention relates to novel polymers which are adducts of an unsaturated hydrocarbon, wherein the novel polymers are produced by contacting cyclic carbonyl monomers with an unsaturated hydrocarbon to form novel cyclic carbonyl polymers having an Mn of about 500 to about 10.sup.7.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: July 25, 1995
    Assignee: Exxon Research & Engineering Co.
    Inventor: Stanley J. Brois