| Patent Number |
Title Of Patent |
Date Issued |
| RE32472 |
Flame-retardant polymer compositions containing amine salts |
August 11, 1987 |
| Polymer compositions containing minor proportions of polyvalent metal or amine salts of 5,5-bis-(bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinane. Aluminum, calcium and melamine salts are preferred. |
| 6583310 |
Direct esterification of ammonium salts of carboxylic acids |
June 24, 2003 |
| A non-catalytic process for producing esters, the process comprising reacting an ammonium salt of a carboxylic acid with an alcohol and removing ammonia from the reaction mixture. Selectivities for the desired ester product can exceed 95 percent. |
| 5290432 |
Method of treating toxic aromatic halogen-containing compounds by electrophilic aromatic substit |
March 1, 1994 |
| An improved method for detoxifying waste materials contaminated with halogenated aromatic hydrocarbons is disclosed. The method provides for detoxification of halogenated aromatic compounds by electrophilic aromatic substitution. The method also provides for the dehalogenation of the low |
| 5178772 |
Process for destruction of metal complexes by ultraviolet irradiation |
January 12, 1993 |
| Metal complexes and especially nickel EDTA is decomposed by adding an oxidizing agent to an aqueous solution containing metal complexes to define an oxidizable aqueous solution. The oxidizable aqueous solution is then exposed to a source of ultraviolet radiation in the range of from |
| 5174893 |
Process for dehalogenation of contaminated waste materials |
December 29, 1992 |
| An improved method for detoxifying waste materials contaminated with halogenated hydrocarbons is disclosed. The method achieves dehalogenation of such halogenated hydrocarbons in a manner as efficient as previous methods, but at a considerably lower cost. The economic advantages of the |
| 5093011 |
Process for dehalogenation of contaminated waste materials |
March 3, 1992 |
| An improved method for detoxifying waste materials contaminated with halogenated hydrocarbons is disclosed. The method achieves dehalogenation of such halogenated hydrocarbons in a manner as efficient as previous methods, but at a considerably lower cost. The economic advantages of the |
| 5043054 |
Process for dehalogenation of contaminated waste materials |
August 27, 1991 |
| An improved method for detoxifying waste materials contaminated with halogenated hydrocarbons is disclosed. The method achieves dehalogenation of such halogenated hydrocarbons in a manner as efficient as previous methods, but at a considerably lower cost. The economic advantages of the |
| 5035840 |
Process for cleaning trace metals from EDTA |
July 30, 1991 |
| A process for removing metal salts from an H.sub.4 EDTA precipitate by esterification with an esterification reagent to produce an esterification mixture comprising a solid metal salt an EDTA ester and thereafter separating the solid metal salt from the esterification mixture. |
| 4778613 |
Spirodiphosphate-containing working substances |
October 18, 1988 |
| A composition is provided which comprises a carrier medium and a spirodiphosphate described by the general formula: ##STR1## wherein X and X' are independently selected from the group consisting of oxygen and sulfur; and Z and Z' are independently selected from the group consisti |
| 4760176 |
Aminocarboxylic acid-terminated polyoxy-alkylenes and process for the preparation thereof |
July 26, 1988 |
| A composition, useful as an extreme pressure additive is provided wherein the composition comprises an aminocarboxylic acid-terminated polyoxyalkylene, wherein the polyoxyalkylene has at least seven oxyalkylene units. |
| 4758683 |
Spirodiphosphoamidate compounds |
July 19, 1988 |
| A spirodiphosphoamidate-type composition is provided, wherein the composition is represented by the general formula: ##STR1## wherein A and A' are independently selected from the group consisting of oxygen and sulfur; R.sup.1 and R.sup.3 are independently selected from the group |
| 4740548 |
Polyimide thermoplastic protected from discoloration during thermal processing |
April 26, 1988 |
| A thermoplastic composition is provided which comprises a polyimide with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal processing. |
| 4738797 |
Aminocarboxylic acid-terminated polyoxyalkylene containing extreme pressure functional compositi |
April 19, 1988 |
| An extreme pressure composition is provided wherein the composition comprises a carrier medium and an aminocarboxylic acid-terminated polyoxyalkylene having at least four oxyalkylene units. |
| 4695601 |
Polyphenylene ether thermoplastic protected from discoloration during processing |
September 22, 1987 |
| A thermoplastic composition is provided which comprises a polyphenylene ether such as the copolymer of 2,6-dimethylphenol with 2,3,6-trimethylphenol, with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal processing. |
| 4551527 |
Salts of 5,5-bis-(bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinane and process for preparin |
November 5, 1985 |
| A process for preparing polyvalent metal and amine salts of the indicated phosphorinane (an acid). The salts are isolated as such and are effective, in small proportions, to impart flame-retardant properties to polymers, especially to polypropylene and to styrenic polymers such as polyst |
| 4518795 |
Bis(beta-pentabromophenoxyethyl) succinate, a flame retardant for ABS |
May 21, 1985 |
| The di-ester of beta-pentabromophenoxyethanol and succinic acid, bis(beta-pentabromophenoxyethyl) succinate, is prepared by mono-ethoxylating pentabromophenol with ethylene oxide, then esterifying the resulting pentabromophenoxyethanol with succinic acid. The di-ester is a flame reta |
| 4491644 |
Flame-retardant polymer compositions |
January 1, 1985 |
| A flame-retarded polymer composition wherein the polymer constituent is an olefin polymer, a polymethyl acrylate or methacrylate, or polystyrene. The polymer is rendered flame-retardant by the presence of an amino-s-triazine salt of bis-(pentaerythritol phosphate) phosphoric acid. |
| 4480093 |
Amines salts of phosphoric acid |
October 30, 1984 |
| Amino-s-triazine salts of bis-(pentaerythritol phosphate) phosphoric acid. The salts are effective flame-retardant additives in a number of different types of polymers. |
| 4478998 |
Process for preparing amine salts of phosphoric acids |
October 23, 1984 |
| A process for preparing amino-s-triazine salts of bis-(pentaerythritol phosphate) phosphoric acid. The process involves reacting the particular amine with the corresponding acid chloride, i.e., the phosphorous oxychloride, in the presence of water. The salts are effective flame-retar |
| 4456721 |
Flame-retarded acrylonitrile-butadiene-styrene copolymer compositions comprising bis(beta-pentab |
June 26, 1984 |
| Compositions comprising ABS and bis(beta-pentabromophenoxyethyl) succinate have good flame retardance and are self-extinguishing in the UL-94 vertical burn test. The compositions may be further compounded with a conventional synergist such as antimony oxide. |
| 4454064 |
Process for preparing pentaerythritol phosphate |
June 12, 1984 |
| A process involving the reaction of pentaerythritol with phosphorus oxychloride. A solvent is used in the process, but not catalyst or amine (as a hydrogen chloride acceptor) is required. |
| 4424172 |
5,5-Bis-(Bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinanes and process for preparing same |
January 3, 1984 |
| A process for preparing 5,5-bis(halomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinanes by hydrolysis of the corresponding phosphoryl chloride. The product is effective, in small proportions, to impart flame-retardant properties to polymer compositions, especially polypropylene and sty |
| 4365033 |
Flame-retardant polymer compositions containing metal or amine salts |
December 21, 1982 |
| Polymer compositions containing minor proportions of polyvalent metal or amine salts of 5,5-bis-(bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinane. Aluminum, calcium and melamine salts are preferred. |
| 4361664 |
Flame-retardant polymer compositions |
November 30, 1982 |
| Polymer compositions containing minor proportions of a 5,5-bis-(halomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinane. The halo atom may be either chlorine or bromine. |
| 4342682 |
Intumescent flame retardant thermoplastic polyurethane elastomer compositions |
August 3, 1982 |
| Thermoplastic polyurethane elastomer compositions comprising a polyurethane elastomer, a pentate salt of an amino-s-triazine, and optionally a polyol are flame retardant and intumescent and may be compounded to be self-extinguishing. |
| 4341694 |
Intumescent flame retardant compositions |
July 27, 1982 |
| Compositions comprising 2,6,7-trioxa-1-phosphobicyclo [2.2.2.] octane -4-methanol-1-oxide and a nitrogen compound selected from the group melamine, ammeline, benzoguanidine, guanidine, urea and salts thereof, are intumescent and are readily adapted to flame retard a variety of dissim |
| 4338246 |
Intumescent flame retardant thermoplastic polymethacrylate compositions |
July 6, 1982 |
| Thermoplastic polymethacrylate compositions comprising (a) thermoplastic polymethacrylate such as polymethyl methacrylate, a pentate salt of an amino-s-triazine, and optionally a polyol are flame retardant and intumescent and may be compounded to be self-extinguishing. |
| 4338245 |
Intumescent flame retardant thermoplastic polyester compositions |
July 6, 1982 |
| Thermoplastic polyester compositions comprising a polyester such as polybutylene terephthalate, a pentate salt of an amino-s-triazine, and optionally a polyol are flame retardant and intumescent and may be compounded to be self-extinguishing. |
| 4336184 |
Intumescent flame retardant thermoplastic polyphenylene ether compositions |
June 22, 1982 |
| Thermoplastic polyphenylene ether compositions comprising a polyphenylene ether-styrenic resin blend, a pentate salt of an amino-s-triazine and optionally a polyol are flame retardant and intumescent and may be compounded to be self-extinguishing. |
| 4201705 |
Intumescent flame retardant polyolefin compositions |
May 6, 1980 |
| Polyolefin compositions comprising a polyolefin and a flame retarding amount of the pentate salt of an amino-s-triazine are intumescent and self-extinguishing and non-dripping. |
| 4154930 |
Pentate salts of amino-s-triazines |
May 15, 1979 |
| Pentate salts of amino-s-triazines having the formula ##STR1## wherein x is -NH.sub.2 or -OH are useful as flame retardants and foaming agents for polymers. |
