Patent application number | Description | Published |
20080269416 | Flame retardant halogenated polymer compositions - A halogenated aryl ether oligomer is formed by halogenation of an aryl ether oligomer and is useful as a flame retardant for flammable macromolecular materials. Typically, the halogenated aryl ether oligomer comprises the following repeating monomeric units: | 10-30-2008 |
20090221754 | POLYMER COMPOSITIONS OF BROMOSTYRENES HAVING CONTROLLED MOLECULAR WEIGHT - A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alphα-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding. | 09-03-2009 |
20090230367 | BROMINATED FLAME RETARDANT - A process for preparing a polybromoaryl ether, the polybromoaryl ether prepared by this process comprising adding to a solvent for the polybromoaryl ether a mixture of (1) at least one compound of the structure HO—Ar—X | 09-17-2009 |
20100120990 | PROCESS FOR CONTROLLING THE MOLECULAR WEIGHT OF POLYMERS OF BROMOSTYRENE - A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding. | 05-13-2010 |
20100160516 | FLAME RETARDANT HALOGENATED PHENYL ETHER BLENDS - A flame retardant blend comprises at least first and second halogenated non-polymeric phenyl ethers having the general formula (I): | 06-24-2010 |
20100210790 | LOW MOLECULAR WEIGHT HALOGENATED AROMATIC POLYMERS AND THEIR USE AS FLAME RETARDANTS - A halogenated aromatic polymer has between 2 and 100 monomer units each comprising an aromatic group substituted with at least one halide group, wherein at least one of said monomer units has the following formula (I): | 08-19-2010 |
20100292376 | PHOSPHORUS-CONTAINING FLAME RETARDANTS - A flame-retardant resin composition comprises a base resin (A), such as a polyester, polyamide or polycarbonate resin, and an organophosphorus compound (B) having at least one of the following formulas (I), (II) and (III): | 11-18-2010 |
20110024703 | ARYL ETHER OLIGOMERS AND PROCESS FOR MAKING ARYL ETHER OLIGOMERS - An aryl composition includes aryl ether oligomers. These compositions may be prepared by reaction of one or more dihalobenzenes with one or more dihydroxybenzenes by an Ullman ether reaction. The oligomers may have two or more benzene rings and include terminal halogen, e.g., bromine (Br), or hydroxyl (OH) groups. These oligomers may be brominated to form flame retardant compositions for thermoplastic polymers. | 02-03-2011 |
20110028626 | FLAME RETARDANT HALOGENATED ARYL ETHER OLIGOMER COMPOSITIONS AND THEIR PRODUCTION - In a process for producing a flame retardant halogenated aryl ether oligomer composition, an aryl ether oligomer is combined with a liquid carrier having a boiling point lower than water to form a slurry or solution of the aryl ether oligomer in the carrier. A halogenating agent is included in the slurry or solution to form a reaction composition, which is reacted at a temperature between about 20° C. and about 80° C. to form a reaction product containing the desired halogenated aryl ether oligomer composition. Unreacted halogenating agent is removed from the reaction product and the reaction product is contacted with an aqueous medium at a temperature sufficient to drive off the liquid carrier and produce an aqueous slurry of the halogenated aryl ether oligomer composition. The desired halogenated aryl ether oligomer composition is then recovered from the aqueous slurry. | 02-03-2011 |
20110040003 | FLAME RETARDANT HALOGENATED POLYMER COMPOSITIONS - A halogenated aryl ether oligomer is formed by halogenation of an aryl ether oligomer and is useful as a flame retardant for flammable macromolecular materials. Typically, the halogenated aryl ether oligomer comprises the following repeating monomeric units: | 02-17-2011 |
20110065838 | Hydroxyphenyl Phosphine Oxide Mixtures and their use as Flame Retardants for Epoxy Resins - A hydroxyphenyl or alkoxyphenyl phosphine oxide composition comprises (i) a first mixture of mono-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers each having the formula (I): | 03-17-2011 |
20110065869 | Hydroxyphenyl phosphine oxide mixtures and their use as flame retardant's for epoxy resins - A hydroxyphenyl or alkoxyphenyl phosphine oxide composition comprising (i) a first mixture of mono-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers, (ii) a second mixture of bis-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers, (iii) a third mixture of tris-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers, and optionally iv) a minority amount of non-hydroxy or non-alkoxy tris-phenyl phosphine oxides is provided. Also provided are epoxy resins compositions with excellent flame retardancy and physical properties, which resins comprise the phosphine oxide composition | 03-17-2011 |
20110065870 | Tris(Hydroxoxyphenyl) Phosphine Oxides and their Use as Flame Retardants for Epoxy Resins - A mixture of tris(hydroxyphenyl) or tris(alkoxyphenyl) phosphine oxide isomers is provided each having the formula (I): | 03-17-2011 |
20110184107 | FLAME RETARDANT HALOGENATED PHENYL ETHERS - A halogenated non-polymeric phenyl ether is described having the general formula (I): | 07-28-2011 |
20120065297 | FLAME RETARDANT HALOGENATED PHENYL ETHERS - A halogenated non-polymeric phenyl ether flame retardant is described having the general formula (I): | 03-15-2012 |
20120172501 | PHOSPHORUS-CONTAINING FLAME RETARDANTS - A flame-retardant resin composition comprises a base resin (A), such as a polyester or polycarbonate resin, and an aromatic organophosphorus compound, in particular, aromatic organophosphorus oligomers or polymers. | 07-05-2012 |
20120296013 | Aluminum Phosphorus Acid Salts as Epoxy Resin Cure Inhibitors - Certain aluminum salts of organic phosphorus acids are found to have a strong effect on inhibiting the epoxy cure rate in epoxy formulations. The substances act catalytically and can be used at a low level in an epoxy formulation to adjust the reactivity of a resin formulation to give longer gel times. Compositions and methods of preparing and using the compositions are disclosed. | 11-22-2012 |
20140217337 | Preparation of Hydroxyphenyl Phosphine Oxide Mixtures - A hydroxyphenyl or alkoxyphenyl phosphine oxide composition comprising (i) a first mixture of mono-(hydroxyphenyl) or (alkoxyphenyl)phosphine oxide isomers, (ii) a second mixture of bis-(hydroxyaryl) or (alkoxyphenyl)phosphine oxide isomers, (iii) a third mixture of tris-(hydroxyaryl) or (alkoxyphenyl)phosphine oxide isomers, and optionally iv) a minority amount of non-hydroxy or non-alkoxy tris-phenyl phosphine oxides is provided. Also provided are epoxy resins compositions with excellent flame retardancy and physical properties, which resins comprise the phosphine oxide composition. | 08-07-2014 |
20140221582 | Hydroxyphenyl Phosphine Oxide Mixtures and Their Use as Flame Retardants for Epoxy Resins - A hydroxyphenyl or alkoxyphenyl phosphine oxide composition comprising (i) a first mixture of mono-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers, (ii) a second mixture of bis-(hydroxyaryl) or (alkoxyphenyl) phosphine oxide isomers, (iii) a third mixture of tris-(hydroxyaryl) or (alkoxyphenyl) phosphine oxide isomers, and optionally iv) a minority amount of non-hydroxy or non-alkoxy tris-phenyl phosphine oxides is provided. Also provided are epoxy resins compositions with excellent flame retardancy and physical properties, which resins comprise the phosphine oxide composition. | 08-07-2014 |
20150031805 | Phosphorus Containing Flame Retardants - Certain phosphonic acid salts heated at temperatures over 200° C. generate thermally stable, highly efficient flame retardant materials well suited for use as flame retardant additives in polymers. The flame retardants of the invention can be used as the sole flame retardant in a composition or in combination with other flame retardants, synergists or adjuvants. | 01-29-2015 |