Ammonium Phosphate Patents (Class 524/416)
  • Patent number: 5466512
    Abstract: 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: Grant
    Filed: September 24, 1993
    Date of Patent: November 14, 1995
    Assignee: Hercules Incorporated
    Inventors: Laura M. Babcock, John K. Bard, Raymond T. Leibfried, Sr.
  • Patent number: 5461108
    Abstract: 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: Grant
    Filed: August 31, 1993
    Date of Patent: October 24, 1995
    Assignee: Polymer Wood Processors, Inc.
    Inventor: Jean Lewis, deceased
  • Patent number: 5430074
    Abstract: 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: Grant
    Filed: September 29, 1993
    Date of Patent: July 4, 1995
    Assignee: Jeneric/Pentron, Incorporated
    Inventors: Nina Y. Barnes, Ronald Feinman, Samuel Waknine, Bruce H. Alpert
  • Patent number: 5430081
    Abstract: 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: Grant
    Filed: November 14, 1994
    Date of Patent: July 4, 1995
    Assignees: Sumitomo Chemical Company, Ltd., Marubishi Oil Chemical Co., Ltd.
    Inventors: Tadayuki Ohmae, Yoshikatsu Ogawa, Haruhiko Hisada, Masahide Yoshiya, Noboru Yamaguchi, Sumio Hara, Tohru Fujiki
  • Patent number: 5430080
    Abstract: 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: Grant
    Filed: May 31, 1994
    Date of Patent: July 4, 1995
    Assignee: Chisso Corporation
    Inventors: Masuo Iwata, Noriaki Narita, Kouji Inoue, Ryoji Takahashi
  • Patent number: 5424345
    Abstract: 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: Grant
    Filed: April 21, 1994
    Date of Patent: June 13, 1995
    Assignee: Ministero Dell 'Universita'E Della Ricerca Scientifica E Tecnologica
    Inventors: Roberto Cipolli, Cristina Rossi, Roberto Oriani, Enrico Masarati, Gilberto Nucida
  • Patent number: 5418282
    Abstract: 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: Grant
    Filed: October 4, 1993
    Date of Patent: May 23, 1995
    Assignee: BHF-Chemie Brandhemmende Fullstoffe GmbH
    Inventor: Helmut Wiehn
  • 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: 5412014
    Abstract: 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: Grant
    Filed: October 26, 1993
    Date of Patent: May 2, 1995
    Assignee: Dow Corning Corporation
    Inventor: David J. Romenesko
  • Patent number: 5403877
    Abstract: 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: Grant
    Filed: August 18, 1993
    Date of Patent: April 4, 1995
    Assignee: Ministero Dell'Universita E Della Ricerca Scientifica E. Tecnologica
    Inventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Roberto Oriani, Mario Pirozzi
  • Patent number: 5401793
    Abstract: 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: Grant
    Filed: March 18, 1992
    Date of Patent: March 28, 1995
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Nobuo Kobayashi, Hikaru Yoshioki, Kenji Yoshida, Katsunobu Sagawa, Shigehisa Ishihara
  • Patent number: 5399599
    Abstract: 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: Grant
    Filed: April 6, 1993
    Date of Patent: March 21, 1995
    Assignee: Thiokol Corporation
    Inventor: David G. Guillot
  • Patent number: 5389707
    Abstract: 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: Grant
    Filed: May 6, 1994
    Date of Patent: February 14, 1995
    Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e Tecnologica
    Inventors: Roberto Cipolli, Enrico Masarati, Roberto Oriani, Mario Pirozzi, Gilberto Nucida
  • Patent number: 5385960
    Abstract: 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: Grant
    Filed: May 20, 1993
    Date of Patent: January 31, 1995
    Assignee: Rohm and Haas Company
    Inventors: William D. Emmons, William C. Finch, Meredith A. Morgan
  • Patent number: 5356983
    Abstract: 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: Grant
    Filed: March 1, 1993
    Date of Patent: October 18, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Bhima R. Vijayendran, Seetha Eswarakrishnan, Carol L. Knox
  • Patent number: 5344855
    Abstract: 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: Grant
    Filed: July 2, 1993
    Date of Patent: September 6, 1994
    Assignee: Chisso Corporation
    Inventors: Noriaki Narita, Masuo Iwata, Kouji Inoue, Hideo Sato, Ryoji Takahashi
  • Patent number: 5331030
    Abstract: 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: Grant
    Filed: December 1, 1992
    Date of Patent: July 19, 1994
    Assignee: Minstero dell `Universita` e della Ricerca Scientifica e Technologica
    Inventors: Roberto Cipolli, Roberto Oriani, Gilberto Nucida, Enrico Masarati
  • Patent number: 5326805
    Abstract: 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: Grant
    Filed: July 30, 1993
    Date of Patent: July 5, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Martin Sicken, Wolfgang Wanzke
  • Patent number: 5321057
    Abstract: 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: Grant
    Filed: November 13, 1992
    Date of Patent: June 14, 1994
    Assignee: Ministero dell'Universita' e della Ricerca Scientifica e Tecnologica
    Inventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
  • Patent number: 5314937
    Abstract: 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: Grant
    Filed: January 6, 1993
    Date of Patent: May 24, 1994
    Assignee: Ministero dell'Universita' e della Ricerca Scientifica
    Inventors: Roberto Cipolli, Enrico Masarati, Cristina Rossi, Roberto Oriani, Gilberto Nucida
  • Patent number: 5314938
    Abstract: 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: Grant
    Filed: February 10, 1993
    Date of Patent: May 24, 1994
    Assignee: Ministereo Dell'Universita' E Della Ricerca Scientifica E Technologica
    Inventors: Roberto Cipolli, Gilberto Nucida, Enrico Masarati, Roberto Oriani, Mario Pirozzi
  • Patent number: 5312853
    Abstract: 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: Grant
    Filed: September 23, 1993
    Date of Patent: May 17, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Horst Staendeke, Daniel J. Scharf
  • Patent number: 5302641
    Abstract: 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: Grant
    Filed: November 13, 1992
    Date of Patent: April 12, 1994
    Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e Tecnologica
    Inventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
  • Patent number: 5302647
    Abstract: 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: Grant
    Filed: July 12, 1991
    Date of Patent: April 12, 1994
    Assignee: DSM N.V.
    Inventors: Masanori Suzuki, Hiroyuki Itoh, Masaaki Mawatari, Tateki Furuyama
  • Patent number: 5302640
    Abstract: 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: Grant
    Filed: November 13, 1992
    Date of Patent: April 12, 1994
    Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e Technologica
    Inventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
  • Patent number: 5302642
    Abstract: 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: Grant
    Filed: November 13, 1992
    Date of Patent: April 12, 1994
    Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e Technologica
    Inventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
  • Patent number: 5298536
    Abstract: 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: Grant
    Filed: February 21, 1992
    Date of Patent: March 29, 1994
    Assignee: Hercules Incorporated
    Inventors: Laura M. Babcock, John K. Bard, Raymond T. Leibfried, Sr.
  • Patent number: 5286576
    Abstract: 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: Grant
    Filed: September 12, 1991
    Date of Patent: February 15, 1994
    Assignee: The B. F. Goodrich Company
    Inventors: Raymond C. Srail, Richard A. Glover, Roy L. Orndorff, Jr.
  • Patent number: 5286775
    Abstract: 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: Grant
    Filed: December 29, 1992
    Date of Patent: February 15, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Pradip K. Bandyopadhyay
  • Patent number: 5268466
    Abstract: 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: Grant
    Filed: November 20, 1991
    Date of Patent: December 7, 1993
    Assignee: Aqualon Company
    Inventor: Charles L. Burdick
  • Patent number: 5256714
    Abstract: 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: Grant
    Filed: September 10, 1991
    Date of Patent: October 26, 1993
    Assignee: General Electric Company
    Inventors: Ping Y. Liu, Nan-I Liu
  • Patent number: 5250587
    Abstract: 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: Grant
    Filed: January 13, 1992
    Date of Patent: October 5, 1993
    Assignee: The Dow Chemical Company
    Inventors: Edward R. Peterson, Gerald M. Lancaster
  • Patent number: 5239047
    Abstract: 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: Grant
    Filed: August 5, 1991
    Date of Patent: August 24, 1993
    Assignee: Henkel Corporation
    Inventors: David I. Devore, Stephen A. Fischer
  • Patent number: 5227416
    Abstract: 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: Grant
    Filed: December 23, 1991
    Date of Patent: July 13, 1993
    Assignee: PPG Industries, Inc.
    Inventors: Carol L. Knox, Suresh B. Damle
  • Patent number: 5225463
    Abstract: 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: Grant
    Filed: April 11, 1991
    Date of Patent: July 6, 1993
    Assignee: Ministero dell'Universita e della Ricerca Scientifica e Tecnologica
    Inventors: Roberto Cipolli, Roberto Oriani, Gilberto Nucida, Mario Pirozzi, Enrico Masarati
  • Patent number: 5225464
    Abstract: 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: Grant
    Filed: April 2, 1992
    Date of Patent: July 6, 1993
    Assignee: Material Technologies & Sciences, Inc.
    Inventor: John E. Hill, Jr.
  • Patent number: 5210120
    Abstract: 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: Grant
    Filed: October 31, 1991
    Date of Patent: May 11, 1993
    Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e Technologica
    Inventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Roberto Oriani, Mario Pirozzi
  • Patent number: 5204393
    Abstract: 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: Grant
    Filed: September 5, 1991
    Date of Patent: April 20, 1993
    Assignee: Hoechst Celanese Corporation
    Inventors: Raymond W. Nalepa, Daniel J. Scharf
  • Patent number: 5204392
    Abstract: 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: Grant
    Filed: September 5, 1991
    Date of Patent: April 20, 1993
    Assignee: Hoechst Celanese Corporation
    Inventors: Raymond W. Nalepa, Daniel J. Scharf
  • Patent number: 5200445
    Abstract: 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: Grant
    Filed: September 11, 1991
    Date of Patent: April 6, 1993
    Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e Tecnologica
    Inventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Mario Pirozzi, Roberto Oriani
  • Patent number: 5182321
    Abstract: Piperazine cyanurate with specified formula and its use in the preparation of self-extinguishing polymer compositions.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: January 26, 1993
    Assignee: HIMONT Incorporated
    Inventors: Guido Bertelli, Osvaldo Cicchetti, Paolo Goberti, Renato Locatelli
  • Patent number: 5164437
    Abstract: 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: Grant
    Filed: October 30, 1990
    Date of Patent: November 17, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Paritosh M. Chakrabarti, Kenneth J. Sienkowski
  • Patent number: 5162418
    Abstract: 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: Grant
    Filed: October 29, 1990
    Date of Patent: November 10, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Paritosh M. Chakrabarti, Kenneth J. Sienkowski
  • Patent number: 5158999
    Abstract: 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: Grant
    Filed: August 13, 1990
    Date of Patent: October 27, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Timothy G. Swales, Alan J. Lindsay, Linda M. Doolan
  • Patent number: 5153245
    Abstract: 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: Grant
    Filed: September 9, 1991
    Date of Patent: October 6, 1992
    Assignee: Ministero Dell'Universita' E Della Ricerca Scientifica E Technologic
    Inventors: Roberto Cipolli, Gilberto Nucida, Enrico Masarati, Roberto Oriani, Mario Pirozzi
  • Patent number: 5149735
    Abstract: 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: Grant
    Filed: October 31, 1990
    Date of Patent: September 22, 1992
    Assignee: Enimont Augusta Industriale S.R.L.
    Inventors: Giancarlo Bressan, Claudio Troglia, Corrado Brichta, Giancarlo Barbero
  • Patent number: 5130357
    Abstract: 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: Grant
    Filed: April 3, 1990
    Date of Patent: July 14, 1992
    Assignee: Chisso Corporation
    Inventors: Shinichi Akitaya, Tooru Fukazawa, Nobuchika Tabata
  • Patent number: 5128392
    Abstract: 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: Grant
    Filed: August 15, 1988
    Date of Patent: July 7, 1992
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Mario N. DeTrano, William L. Hergenrother, Donald B. Diehl
  • Patent number: 5116891
    Abstract: 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: Grant
    Filed: January 18, 1991
    Date of Patent: May 26, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Werner Eberspach, Daniel Scharf, Manfred Lysek
  • Patent number: 5109037
    Abstract: 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: Grant
    Filed: June 15, 1990
    Date of Patent: April 28, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Paritosh M. Chakrabarti, Kenneth J. Sienkowski