Ammonium Phosphate Patents (Class 524/416)
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Patent number: 5466512Abstract: Disclosed are flame retardant organosilicon compositions, wherein the organosilicon compositions comprise residues derived from (a) polycyclic polyene compounds and (b) residues derived from cyclic polysiloxanes, tetrahedral siloxysilanes and linear poly(organohydrosilioxane)s. Preferably the compositions contain flame retardants, such as a phosphorus containing or halogen containing flame retardant, which may be microencapsulated. Also disclosed are processes for making such compositions and articles made from such compositions.Type: GrantFiled: September 24, 1993Date of Patent: November 14, 1995Assignee: Hercules IncorporatedInventors: Laura M. Babcock, John K. Bard, Raymond T. Leibfried, Sr.
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Patent number: 5461108Abstract: Wood and other cellulose-based products are preserved with a water-based treating solution containing a phenolic resin prepolymer such as phenol formaldehyde resin prepolymer, a resorcinol formaldehyde resin prepolymer and water. The treatment is carried out by exposing the wood or other cellulose-based product, while submerged in the treating solution, to one or more cycles of reduced pressure (i.e. vacuum) and elevated pressure.Type: GrantFiled: August 31, 1993Date of Patent: October 24, 1995Assignee: Polymer Wood Processors, Inc.Inventor: Jean Lewis, deceased
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Patent number: 5430074Abstract: A gum-colored dental composite is provided which may be used in class V dental restorations or as a cosmetic coating for the gingival portion of a tooth. A kit is also provided which enables a gum-colored dental composite to be formulated which closely resembles the natural gum coloration of any patient's gums. The dental composite may be used to counter the illusion of long teeth which occurs when a gum line recedes. The dental composite may also be used on other composite resins, porcelains and metals.Type: GrantFiled: September 29, 1993Date of Patent: July 4, 1995Assignee: Jeneric/Pentron, IncorporatedInventors: Nina Y. Barnes, Ronald Feinman, Samuel Waknine, Bruce H. Alpert
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Patent number: 5430081Abstract: A flame retardant thermoplastic resin composition which comprises (A) 50 to 90% by weight of a thermoplastic resin which is the base polymer and 50 to 10% by weight of a total of (B) a nitrogen-containing condensed phosphoric acid compound, (C) a comb-like polymer consisting of a polyethylene main chain and a polyoxyalkylene side chain and (D) a metal-containing compound having a carbonization accelerating effect, the amounts of the components (B), (C) and (D) being 5 to 49% by weight, 1 to 15% by weight and 0 to 10% by weight, respectively, in which the total amount of the components (A), (B), (C) and (D) is 100% by weight; a process for producing the composition; a flame-retardant consisting of the components (B), (C) and (D); and a process for producing the flame-retardant.Type: GrantFiled: November 14, 1994Date of Patent: July 4, 1995Assignees: Sumitomo Chemical Company, Ltd., Marubishi Oil Chemical Co., Ltd.Inventors: Tadayuki Ohmae, Yoshikatsu Ogawa, Haruhiko Hisada, Masahide Yoshiya, Noboru Yamaguchi, Sumio Hara, Tohru Fujiki
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Patent number: 5430080Abstract: A flame-retardant thermoplastic resin composition comprising,(A) 10 to 40% by weight of a melamine-coated ammonium polyphosphate having melamine added and/or adhered onto the particle surfaces of a powdery ammonium polyphosphate expressed by the following formula (I): ##STR1## wherein n is an integer of 2 or more, (B) 1 to 20% by weight of a triazine-containing polymer, and(C) 89 to 40% by weight of a thermoplastic resin, the total amount of these components being 100% by weight.Type: GrantFiled: May 31, 1994Date of Patent: July 4, 1995Assignee: Chisso CorporationInventors: Masuo Iwata, Noriaki Narita, Kouji Inoue, Ryoji Takahashi
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Patent number: 5424345Abstract: Triazinylphosphonic acids of general formula (I): ##STR1## obtained by subsequent condensation reaction of a cyanuric halide with a osphite and with amines, and then by hydrolysis reaction of the intermediate thus obtained. The compounds of general formula (I) are used in particular as flame retardant additives.Type: GrantFiled: April 21, 1994Date of Patent: June 13, 1995Assignee: Ministero Dell 'Universita'E Della Ricerca Scientifica E TecnologicaInventors: Roberto Cipolli, Cristina Rossi, Roberto Oriani, Enrico Masarati, Gilberto Nucida
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Patent number: 5418282Abstract: In the manufacture of synthetic foams and also especially in that of timber materials using urea-formaldehyde condensate binders, the mol ratio between urea and formaldehyde is decisive for the resultant final rigidity and the presence of free gaseous formaldehyde. In order, with a favourable mol ratio, to reduce the quantity of gaseous formaldehyde remaining in the timber material and at the same time to obtain effective fire resistance in both synthetic foams and timber materials adhesively secured with isocyanate, the invention proposes a combination of effective substances to be added to the initial raw materials as a granulate with a grain size of 80 to 1,500 my.Type: GrantFiled: October 4, 1993Date of Patent: May 23, 1995Assignee: BHF-Chemie Brandhemmende Fullstoffe GmbHInventor: Helmut Wiehn
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Patent number: 5414031Abstract: 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: GrantFiled: November 19, 1993Date of Patent: May 9, 1995Assignee: Polymer Product Company, Inc.Inventor: Carol L. Knox
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Patent number: 5412014Abstract: A free-flowing silicone polymer powder, said powder having an average particle size of 1 to 1000 microns and being prepared by mixing a polydiorganosiloxane with a silica filler, and a phosphorus-based fire retardant compound are uniformly dispersed in an organic resin using conventional equipment, such as a single screw extruder. The resulting resin composition shows a significant improvement in fire retardancy but does not exhibit the severe deterioration of impact resistance incurred when the resin is modified with only phosphorus-based fire retardant.Type: GrantFiled: October 26, 1993Date of Patent: May 2, 1995Assignee: Dow Corning CorporationInventor: David J. Romenesko
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Patent number: 5403877Abstract: This invention relates to salts of triazine derivatives with oxygenated as of phoshporus, having general formula (I): ##STR1## obtained by salification, with an acid containing phosphorus, of polycondensates of 2,4,6-triamino-1,3,5-triazine.The compounds having the general formula (I) are particularly used as flame-resistant additives.Type: GrantFiled: August 18, 1993Date of Patent: April 4, 1995Assignee: Ministero Dell'Universita E Della Ricerca Scientifica E. TecnologicaInventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Roberto Oriani, Mario Pirozzi
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Patent number: 5401793Abstract: An intumescent fire-resistant coating and a fire-resistant material using the same are disclosed, the coating essentially including (A) at least one inorganic compound selected from the group consisting of a carbide, boride, nitride, carbonitride, or carboboride of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, tungsten, silicon or chromium and a carbide, nitride or carbonitride of boron, (B) a synthetic resin, and (C) at least one phosphorus and/or sulfur compound capable of forming a Lewis acid on heating.Type: GrantFiled: March 18, 1992Date of Patent: March 28, 1995Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Nobuo Kobayashi, Hikaru Yoshioki, Kenji Yoshida, Katsunobu Sagawa, Shigehisa Ishihara
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Patent number: 5399599Abstract: Thermoplastic elastomeric ablative insulation having good mechanical properties at extremely low temperatures are disclosed. The insulation is based upon a polyamide-ether resin and includes carefully selected fillers to possess good low temperature mechanical properties and still provide suitable charring and ablative insulation performance at low temperatures (-65.degree. F.). A typical insulation within the scope of the present invention includes a polyamide-ether thermoplastic elastomeric polymer resin, an inorganic phosphorus containing compound, such as ammonium polyphosphate, present in the insulation from about 5 to about 60 phr, and a polyhydric alcohol present, such as pentaerythritol, in the insulation from about 1 to about 30 phr. The insulation compositions within the scope of the present invention optionally include silicone resin present in the insulation in range from about 0 to 15 phr. Chopped fiber filler may also be present in the insulation in range from about 0 to 100 phr.Type: GrantFiled: April 6, 1993Date of Patent: March 21, 1995Assignee: Thiokol CorporationInventor: David G. Guillot
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Patent number: 5389707Abstract: Salts of triazinic compounds with phosphorus oxyacids, having the general rmula (I): ##STR1## obtained by salifying oligomeric derivatives of 2,4,6-triamino-1,3,5-triazine with a phosphorus-containing acid.The compounds with general formula (I) find use in particular as flame-retardant additives.Type: GrantFiled: May 6, 1994Date of Patent: February 14, 1995Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e TecnologicaInventors: Roberto Cipolli, Enrico Masarati, Roberto Oriani, Mario Pirozzi, Gilberto Nucida
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Patent number: 5385960Abstract: Coatings compositions including stable composite latex-pigment particles are prepared by dispersing titanium dioxide pigment particles in a first aqueous medium and preparing a dispersion of selected polymeric latex particles, which have at least one dihydrogen phosphate functional group, in a second aqueous medium. The media are mixed and the selected polymeric latex particles adsorb on the titanium dioxide particles. Dibasic phosphate is then provided to the mixture to stop adsorption and stabilize the composite particles. The coating composition gives a coating with improved hiding.Type: GrantFiled: May 20, 1993Date of Patent: January 31, 1995Assignee: Rohm and Haas CompanyInventors: William D. Emmons, William C. Finch, Meredith A. Morgan
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Patent number: 5356983Abstract: Small particles of ammonium dihydrogen phosphate, diammonium hydrogen phosphate, or a mixture thereof provide a higher Limiting Oxygen Index ("LOI") to polyolefin compositions containing the small particles than do larger particles of the same substance. In many instances, improvement in one or more other properties, such as for example, processability, appearance, UL-94 rating, tensile strength, tensile modulus, and/or elongation at break is also obtained.Type: GrantFiled: March 1, 1993Date of Patent: October 18, 1994Assignee: PPG Industries, Inc.Inventors: Bhima R. Vijayendran, Seetha Eswarakrishnan, Carol L. Knox
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Patent number: 5344855Abstract: A flame-retardant consisting of two specified components and a flame-retardant resin composition having the flame-retardant blended with a thermoplastic resin are provided,which flame-retardant is composed of (A) a reaction product of cyanuric chloride with a diamine and (B) ammonium polyphosphate or polyphosphoric acid amide, the ratio of (A) to (B) being 0.1 to 10, and which flame-retardant resin composition has the flame-retardant blended with a thermoplastic resin in a quantity of 1 to 50% by weight based upon the weight of the composition.Type: GrantFiled: July 2, 1993Date of Patent: September 6, 1994Assignee: Chisso CorporationInventors: Noriaki Narita, Masuo Iwata, Kouji Inoue, Hideo Sato, Ryoji Takahashi
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Patent number: 5331030Abstract: Polymeric compositions with good flame self-extinguishing characteristics, ased on thermoplastic polymers or polymers with elastomeric properties, especially olefinic polymers or copolymers, comprising:a) from 90 to 40 parts by weight of a thermoplastic polymer or a polymer with elastomeric properties;b) from 6 to 33 parts by weight of one or more ammonium or amine phosphates and/or phosphonates;c) from 4 to 27 parts by weight of one or more salts of 2,4,6-triamino-1,3,5-triazine derivatives with cyanuric acid, of general formula (I): ##STR1##Type: GrantFiled: December 1, 1992Date of Patent: July 19, 1994Assignee: Minstero dell `Universita` e della Ricerca Scientifica e TechnologicaInventors: Roberto Cipolli, Roberto Oriani, Gilberto Nucida, Enrico Masarati
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Patent number: 5326805Abstract: A flame-retardant plastic molding composition of improved stability comprises50 to 85% by weight, based on the total amount of the molding composition, of an olefin polymer and15 to 50% by weight, based on the total amount of the molding composition, of a flameproofing system comprising 80 to 50% by weight of an ammonium polyphosphate of the formula (NH.sub.4 PO.sub.3).sub.n, in which n is a number from 200 to 1000 (=component A) and50 to 20% by weight of a reaction product of tris(2-hydroxyethyl) isocyanurate (THEIC) of the formula ##STR1## with an aromatic polycarboxylic acid of the formulaAr(COOH).sub.m(=component B).As a result of the flameproofing system to be employed according to the invention, not only is the processing temperature of the plastics molding composition increased, but the water-solubility of components of the molding composition after processing is reduced significantly.Type: GrantFiled: July 30, 1993Date of Patent: July 5, 1994Assignee: Hoechst AktiengesellschaftInventors: Martin Sicken, Wolfgang Wanzke
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Patent number: 5321057Abstract: Ammonium polyphosphate having the general formula (I):(NH.sub.4).sub.n+2 P.sub.n O.sub.3 n+1 (I)microencapsulated with condensation compounds obtained by polymerizing pominic compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine having the general formula (II): ##STR1## with aldehyde, preferably formaldehyde.Type: GrantFiled: November 13, 1992Date of Patent: June 14, 1994Assignee: Ministero dell'Universita' e della Ricerca Scientifica e TecnologicaInventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
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Patent number: 5314937Abstract: Self-extinguishing polymeric compositions endowed with high self-extinguishing characteristics when exposed to a flame, based on thermoplastic polymers endowed with elastomeric properties, in particular olefinic polymers or copolymers, comprising:(a) from 90 to 40 parts by weight of a thermoplastic polymer, or a polymer with elastomeric properties;(b) from 10 to 60 parts by weight of one or more derivatives of 2,4-diamino-1,3,5-triazinyl-6-phosphonic acid having the general formula (I): ##STR1##Type: GrantFiled: January 6, 1993Date of Patent: May 24, 1994Assignee: Ministero dell'Universita' e della Ricerca ScientificaInventors: Roberto Cipolli, Enrico Masarati, Cristina Rossi, Roberto Oriani, Gilberto Nucida
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Patent number: 5314938Abstract: Amelinic compounds of general formula (I) ##STR1## obtained by subsequent condensation reaction of 1 mol of a cyanuric acid lide with 1 mol of amine and of a polyamine and by hydrolysis reaction of the thus obtained intermediate. Compounds of general formula (I) are used, in particular, as antiflame additives.Type: GrantFiled: February 10, 1993Date of Patent: May 24, 1994Assignee: Ministereo Dell'Universita' E Della Ricerca Scientifica E TechnologicaInventors: Roberto Cipolli, Gilberto Nucida, Enrico Masarati, Roberto Oriani, Mario Pirozzi
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Patent number: 5312853Abstract: Flame-retardant polymeric compositions, preferably thermoplastic and especially polyolefin-based compositions, containing an intumescent flame-retardant system substantially comprised of a phosphorus component and an organic nitrogen component. The flame-retardant system is more particularly comprised of ammonium polyphosphate and tris-(2-hydroxyethyl) isocyanurate.Type: GrantFiled: September 23, 1993Date of Patent: May 17, 1994Assignee: Hoechst Celanese CorporationInventors: Horst Staendeke, Daniel J. Scharf
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Patent number: 5302641Abstract: Self-extinguishing thermoplastic polymeric compositions comprising a phosrus derivative and condensation compounds obtained by means of the polymerization of polyaminic mixtures essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (I): ##STR1## with aldehydes, preferably formaldehyde.Type: GrantFiled: November 13, 1992Date of Patent: April 12, 1994Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e TecnologicaInventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
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Patent number: 5302647Abstract: A flame retardant resin composition which includes the following component (A) and component (B) blended in the ratio (A):(B)=100:1-40 parts by weight. Component (A) is a thermoplastic resin including 0-70% by weight of a rubber component and 100-30% by weight of a polymer component formed from monomers comprising a methylated aromatic vinyl monomer and an hydroxylated aromatic vinyl monomer and, optionally, an aromatic vinyl monomer other than the above monomers, a cyanated vinyl monomer, a (meth)acrylic acid ester monomer, maleic anhydride, and a maleimide monomer; graft ratio of the thermoplastic resin being 10-150% when the rubber component is used. Component (B) is a flame retarder.Type: GrantFiled: July 12, 1991Date of Patent: April 12, 1994Assignee: DSM N.V.Inventors: Masanori Suzuki, Hiroyuki Itoh, Masaaki Mawatari, Tateki Furuyama
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Patent number: 5302640Abstract: Self-extinguishing, thermoplastic, polymeric compositions comprising a phhorus derivative and condensation compounds obtained by polymerizing polyaminic compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (I): ##STR1## with aldehydes, preferably formaldehyde.Type: GrantFiled: November 13, 1992Date of Patent: April 12, 1994Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e TechnologicaInventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
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Patent number: 5302642Abstract: Self-extinguishing polymeric compositions comprising an ammonium polyphoste having the general formula:(NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1microencapsulated with condensation compounds obtained by polymerizing polyaminic compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (II): ##STR1## with aldehydes, preferably formaldehyde.Type: GrantFiled: November 13, 1992Date of Patent: April 12, 1994Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e TechnologicaInventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
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Patent number: 5298536Abstract: Disclosed are flame retardant organosilicon compositions, wherein the organosilicon compositions comprise residues derived from (a) polycyclic polyene compounds and (b) residues derived from cyclic polysiloxanes, tetrahedral siloxysilanes and linear poly(organohydrosiloxane)s. Preferably the compositions contain flame retardants, such as a phosphorus containing or halogen containing flame retardant, which may be microencapsulated. Also disclosed are processes for making such compositions and articles made from such compositions.Type: GrantFiled: February 21, 1992Date of Patent: March 29, 1994Assignee: Hercules IncorporatedInventors: Laura M. Babcock, John K. Bard, Raymond T. Leibfried, Sr.
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Patent number: 5286576Abstract: Impact resistant and flame retardant polymer composition, slab-like rectangular solid made of said composition, and composite laminate article having at least one layer of said composition. The polymer composition comprises a maximum of 86 volume percent of ultra high molecular weight polyethylene (UHMWPE), a minimum of 4.40 volume percent of a flame retardant additive or mixture thereof, and a minimum of 6 volume percent of chopped reinforcing fibers, all volumes referring to the densified (molded) state. In addition the bulk volume of the chopped reinforcing fibers, as measured by a tapped density test, must be a minimum of 27 percent of the final molded volume of the composition. The maximum volume % loading of the additives is limited by the requirement that the notched Izod impact strength is a minimum of 7 ft.-lb per inch width.Type: GrantFiled: September 12, 1991Date of Patent: February 15, 1994Assignee: The B. F. Goodrich CompanyInventors: Raymond C. Srail, Richard A. Glover, Roy L. Orndorff, Jr.
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Patent number: 5286775Abstract: A halogen-free composition comprising 100 parts of polyolefin resin grafted with from about 1 to about 10 parts maleic anhydride; from about 0.1 part to about 10 parts of a free radical catalyst therefor, from about 0.5 part to about 10 parts of an antioxidant, and from about 5 parts to about 500 parts of at least one ammonium polyphosphate containing flame retardant.Type: GrantFiled: December 29, 1992Date of Patent: February 15, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventor: Pradip K. Bandyopadhyay
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Patent number: 5268466Abstract: Aqueous suspensions of hydroxyethylcellulose, carboxymethylcellulose, methylcellulose, methylhydroxypropylcellulose, 1-(butoxy)-2-hydroxypropylhydroxyethylcellulose, ethylhydroxyethylcellulose, hydrophobically modified hydroxyethylcellulose, methylhydroxypropylcellulose, guar gum, carboxymethylhydroxypropylguar, hydroxypropylguar and carboxymethylguar in dibasic potassium phosphate are stabilized with xanthan gum to provide improved thickeners for joint compounds and latex paint.Type: GrantFiled: November 20, 1991Date of Patent: December 7, 1993Assignee: Aqualon CompanyInventor: Charles L. Burdick
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Patent number: 5256714Abstract: Disclosed are flame retardant poly(butylene terephthalate) resins comprising:(i) at least one polyester resin; and(ii) a flame retardant effective amount of a mixture comprising (a) a polyphosphonate ester, (b) an ammonium polyphosphate, and (c) a halogenated benzosulfonate.Type: GrantFiled: September 10, 1991Date of Patent: October 26, 1993Assignee: General Electric CompanyInventors: Ping Y. Liu, Nan-I Liu
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Patent number: 5250587Abstract: Additives which have low loss factors and high dielectric constants are added to olefin/carbon monoxide copolymers, thereby synergistically enhancing the beneficial thermal response of the copolymers to the action of radio frequency energy, especially microwave energy. The additives may be, e.g., metal salts, metal oxides, and metal-organic compounds. The copolymer is preferably comprised of ethylene/carbon monoxide (E/CO) or a terpolymer of E/CO/M, where M represents minor amounts of one or more other olefinically-unsaturated monomers which are copolymerizable with ethylene.Type: GrantFiled: January 13, 1992Date of Patent: October 5, 1993Assignee: The Dow Chemical CompanyInventors: Edward R. Peterson, Gerald M. Lancaster
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Patent number: 5239047Abstract: A wet strength resin composition is comprised of an aminopolyamide-epichlorohydrin acid salt resin having a total organically bound chlorine of up to 0.7% by weight of the resin. The amount of total organically bound chlorine present is controlled by the process parameters.Type: GrantFiled: August 5, 1991Date of Patent: August 24, 1993Assignee: Henkel CorporationInventors: David I. Devore, Stephen A. Fischer
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Patent number: 5227416Abstract: When tris(2-hydroxyethyl) isocyanurate and a long chain amine are employed together in intumescent flame retardant compositions, tris(2-hydroxyethyl) isocyanurate bloom is substantially reduced or even eliminated, and yet the flame retardant effectiveness of the tris(2-hydroxyethyl) isocyanurate is substantially retained.Type: GrantFiled: December 23, 1991Date of Patent: July 13, 1993Assignee: PPG Industries, Inc.Inventors: Carol L. Knox, Suresh B. Damle
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Patent number: 5225463Abstract: Self-extinguishing polymeric compositions containing: a) from 90 to 40 parts by weight of a thermoplastic polymer, or a polymer having elastomeric properties and b) 10 to 60 parts by weight of one or more 2,4,6-triamino-1,3,5-triazine compounds salified with an oxygenated acid of phosphorus, wherein at least one of the triamino substituents of the triazine compound are substituted with at least one of the following radicals ##STR1## wherein m=an integer between 2 and 8;p=an integer between 2 and 6;R.sub.8 =H; C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.q H.sub.2q OR.sub.9 wherein q is an integer between 1 and 4 and R.sub.9 is hydrogen or C.sub.1 -C.sub.4 alkyl; C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;R' is H; C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl; C.sub.1 -C.sub.4 hydroxyalkyl, or ##STR2## is replaced by a heterocyclic radical bound to the alkyl chain through the nitrogen atom.Type: GrantFiled: April 11, 1991Date of Patent: July 6, 1993Assignee: Ministero dell'Universita e della Ricerca Scientifica e TecnologicaInventors: Roberto Cipolli, Roberto Oriani, Gilberto Nucida, Mario Pirozzi, Enrico Masarati
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Patent number: 5225464Abstract: Compositions useful in forming intumescent coatings are provided. These compositions are based on a reaction between phosphoric acid, melamine and monoammonium phosphate, which renders the monoammonium phosphate substantially less soluble while retaining its low dissolution temperature. Intumescent coatings utilizing the above-technology are disclosed as is a method of manufacturing these coatings.Type: GrantFiled: April 2, 1992Date of Patent: July 6, 1993Assignee: Material Technologies & Sciences, Inc.Inventor: John E. Hill, Jr.
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Patent number: 5210120Abstract: Polymeric compositions endowed with high self-extinguishing characteristics o flame, based on thermoplastic polymers or polymers having elastomeric properties, especially olefin polymers and copolymers, comprising:a) from 89 to 40 parts by weight of a thermoplastic polymer or of a polymer having elastomeric properties;b) from 8 to 33 parts by weight of one or more phosphates and/or phosphonates of ammonium or of amine;c) from 3 to 27 parts by weight of one or more oligomeric compounds derived from the 2,4-diamino-6-hydroxy-1,3,5-triazine, having the general formula (I): ##STR1##Type: GrantFiled: October 31, 1991Date of Patent: May 11, 1993Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e TechnologicaInventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Roberto Oriani, Mario Pirozzi
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Patent number: 5204393Abstract: An improved flame retardant polyolefin is disclosed which comprises a combination of ammonium polyphosphate; tris(2-hydroxyethyl) isocyanurate; and melamine cyanurate; and a selected silica in an amount from 0.5 percent to an amount equal to one-half the amount by weight of THEIC, wherein the selected silica meets defined surface area, particle size and absorption criteria.Type: GrantFiled: September 5, 1991Date of Patent: April 20, 1993Assignee: Hoechst Celanese CorporationInventors: Raymond W. Nalepa, Daniel J. Scharf
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Patent number: 5204392Abstract: An improved flame reardant polyolefin is disclosed which comprises a combination of ammoniumm polyphosphate; tris(2-hydroxyethyl) isocyanurate; and a selected silica in an amount from 0.5 percent to an amount equal to one-half the amount by weight of THEIC, wherein the silica meets defined surface arera, particle size and absorption criteria.Type: GrantFiled: September 5, 1991Date of Patent: April 20, 1993Assignee: Hoechst Celanese CorporationInventors: Raymond W. Nalepa, Daniel J. Scharf
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Patent number: 5200445Abstract: Polymeric compositions endowed with high characteristics of flame self-esguishing, based on thermoplastic polymers or showing elastomeric properties, especially olefin polymers and copolymers, comprising:a) from 89 to 40 parts by weight of a thermoplastic polymer or having elastomeric properties;b) from 8 to 33 parts b.w; of one or more phosphates and/or phosphonates of ammonium or of an amine;c) from 3 to 27 parts b.w.Type: GrantFiled: September 11, 1991Date of Patent: April 6, 1993Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e TecnologicaInventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Mario Pirozzi, Roberto Oriani
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Patent number: 5182321Abstract: Piperazine cyanurate with specified formula and its use in the preparation of self-extinguishing polymer compositions.Type: GrantFiled: December 18, 1991Date of Patent: January 26, 1993Assignee: HIMONT IncorporatedInventors: Guido Bertelli, Osvaldo Cicchetti, Paolo Goberti, Renato Locatelli
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Patent number: 5164437Abstract: The water leaching of ammonium polyphosphate from compositions comprising organic polymer and particles of ammonium polyphosphate is reduced if the ammonium polyphosphate is surface-modified with anionic surfactant selected from fatty acids containing from about 12 to about 32 carbon atoms, bivalent metal salts of such fatty acids, trivalent metal salts of such fatty acids, and mixtures thereof.Type: GrantFiled: October 30, 1990Date of Patent: November 17, 1992Assignee: PPG Industries, Inc.Inventors: Paritosh M. Chakrabarti, Kenneth J. Sienkowski
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Patent number: 5162418Abstract: The water leaching of ammonium polyphosphate from compositions comprising organic polymer and particles of ammonium polyphosphate is reduced if the ammonium polyphosphate is surface-modified with at least one nonionic surfactant selected from the group consisting of: (a) fatty alcohol containing from about 12 to about 32 carbon atoms, (b) alkylene oxide adduct of such fatty alcohol, (c) fatty acid amide containing from about 12 to about 32 carbon atoms in the acyl group thereof, (d) copolymer of ethylene oxide and propylene oxide, and (e) a mixture thereof, wherein the surfactant has an HLB less than about 10.Type: GrantFiled: October 29, 1990Date of Patent: November 10, 1992Assignee: PPG Industries, Inc.Inventors: Paritosh M. Chakrabarti, Kenneth J. Sienkowski
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Patent number: 5158999Abstract: Compounds having a nucleus of general formula (I): ##STR1## in which: n is an integer and has a value of at least 2;R.sup.1 represents an alkyl group comprising up to 20 carbon atoms; andR.sup.2 represents ##STR2## where R.sup.3 represents an alkyl group comprising up to 20 carbon atoms or an aryl nucleus comprising up to 10 carbon atoms, or R.sup.2 represents a heterocyclic ring nucleus comprising from 4 to 8 ring atoms, at least one atom comprising nitrogen and linking the ring nucleus to the triazine ring. Compounds of formula (I) are suitable for use as a flame retardant additive for polymer materials, particularly when used in combination with a second and different source of phosphorus. The flame retarded polymers are particularly suitable for use in wire and cable insulation, dimensionally recoverable products, molded parts, extruded tubings, pipes and tape type constructions.Type: GrantFiled: August 13, 1990Date of Patent: October 27, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Timothy G. Swales, Alan J. Lindsay, Linda M. Doolan
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Patent number: 5153245Abstract: Polymeric compositions endowed with high characterics of self-extinguishing o flame based on thermoplastic polymers or having elastomeric properties, especially olefin polymers and copolymers, comprising:a) from 91 to 40 parts by weight of a thermoplastic polymer or having elastomeric properties;b) from 6 to 33 parts by weight of one or more phosphates and/or phosphonates of ammonium or of an amine;c) from 3 to 27 parts by weight of one or more compounds derived from 2,4-diamino-6-hydroxy-1,3,5-triazine, having the general formula (I): ##STR1##Type: GrantFiled: September 9, 1991Date of Patent: October 6, 1992Assignee: Ministero Dell'Universita' E Della Ricerca Scientifica E TechnologicInventors: Roberto Cipolli, Gilberto Nucida, Enrico Masarati, Roberto Oriani, Mario Pirozzi
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Patent number: 5149735Abstract: Self-extinguishing polymeric compositions are taught comprising, expressed in % by weight referrred to the total composition:a) from 1 to 25% of at least an organic aliphatic, cycloaliphatic, aromatic halogen-derivative;b) from 10 to 40% of at least an adduct between an inorganic halide and a zeolite;c) from 0.5 to 5% of an organic reactive agent capable of modifying the polymeric matrix at the combustion temperature, comprising at least an organic compound which generates radicals at said temperature and at least a cross-linking agent;d) the remaining part being composed of at least a thermoplastic polymer and/or copolymer.Type: GrantFiled: October 31, 1990Date of Patent: September 22, 1992Assignee: Enimont Augusta Industriale S.R.L.Inventors: Giancarlo Bressan, Claudio Troglia, Corrado Brichta, Giancarlo Barbero
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Patent number: 5130357Abstract: The present flame retardant compositions of polypropylene resin contains polypropylene as a principal constituent and the following constituents making a total of 100 wt %: (A) silane coupling agent and/or (D) olefinic synthetic rubber, (B) ammonium polyphosphate or melamine-modified ammonium polyphosphate, and (C) one or more nitrogen organic compounds which are producible nonflammable gas products and carbonaceous residues by the pyrolysis of the mixture.Further, the other compositions of polypropylene resin contains (E) polyethylene resin along with the above constituents making a total of 100 wt %.Moreover, the other compositions contains (E) polyethylene resin, and (F) crosslinking agent and (G) thiophosphite along with above constituents making a total of 100 wt. %.Type: GrantFiled: April 3, 1990Date of Patent: July 14, 1992Assignee: Chisso CorporationInventors: Shinichi Akitaya, Tooru Fukazawa, Nobuchika Tabata
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Patent number: 5128392Abstract: The present invention relates to filled elastomers which can be cured at low temperatures utilizing a quinoid/peroxide curing system in the presence of a select polar solvent accelerator. The select solvent accelerators which are utilized have the dual function of acting as both dispersing agents and curing accelerators. The instant invention herein includes the instant curing system, its use in a tire sealant composition, the puncture-sealing layer formed of the cured composition and the puncture-sealing tire.Type: GrantFiled: August 15, 1988Date of Patent: July 7, 1992Assignee: Bridgestone/Firestone, Inc.Inventors: Mario N. DeTrano, William L. Hergenrother, Donald B. Diehl
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Patent number: 5116891Abstract: Flame-resistant polymeric compositions, preferably olefinic polymers and/or copolymers, containing 8 to 45% by weight of a flameproofing system. This flameproofing system comprises at least one phosphorus component and a monomeric triazinylpiperazine. The phosphours component is a free-flowing, pulverulent, sparingly water-soluble ammonium polyphosphate, while the triazinylpiperazine used is a pulverulent bistriazinylpiperazine.Type: GrantFiled: January 18, 1991Date of Patent: May 26, 1992Assignee: Hoechst AktiengesellschaftInventors: Werner Eberspach, Daniel Scharf, Manfred Lysek
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Patent number: 5109037Abstract: The water leaching of ammonium polyphosphate from compositions comprising organic polymer and particles of ammonium polyphosphate is reduced if the ammonium polyphosphate is surface-modified with copolymer of vinylpyrrolidone and comonomer selected from the group consisting of .alpha.-olefin containing from about 4 to about 50 carbon atoms, styrene, styrene substituted on the ring with at least one alkyl group containing from 1 to about 12 carbon atoms, and mixtures thereof.Type: GrantFiled: June 15, 1990Date of Patent: April 28, 1992Assignee: PPG Industries, Inc.Inventors: Paritosh M. Chakrabarti, Kenneth J. Sienkowski