Abstract: This invention relates to thermoplastic polymer compositions comprising a clay having drip resistance in the Underwriters Laboratories Standard 94 flammability test.

Abstract: Disclosed is a polymer blend composition containing a branched aromatic carbonate polymer and a rubber-modified monovinylidene aromatic copolymer comprising a star-branched rubber and optionally, a linear rubber. The polymer blend compositions according to the invention have a desirable balance of processability and when molded, impact strength.

Abstract: The present invention relates to a blend of polymeric materials comprising;

Abstract: Disclosed is an ignition resistant polymer composition containing a thermoplastic polymer, a phosphorous compound, and an oxalate salt of metals of group I, II or III of the Periodic Table of the Elements. The ignition resistant polymer composition according to the invention is rated V-2, V-1, V-0 or 5 V in the Underwriter's Laboratories Standard 94 flammability test.

Abstract: Disclosed is a monovinylidene aromatic copolymer composition comprising a combination of monovinylidene aromatic copolymers, a flame retardant, an optional flame retardant synergist and a drip suppressant, wherein the combination of monovinylidene aromatic copolymers comprise a mass polymerized, rubber-modified monovinylidene aromatic copolymer and an emulsion polymerized, rubber-modified monovinylidene aromatic copolymer. Said compositions have a good balance of physical properties and are rated V-2, V-1, V-0 and/or 5V in the Underwriter's Laboratories Standard 94 flammability test.

Abstract: The present invention relates to a blend of polymeric materials comprising; (A) of from about 1 to about 80 percent by weight (based on the combined weights of Components A and B) of at least one substantially random interpolymer; wherein said interpolymer; (1) contains of from about 0.5 to about 50 mole percent of polymer units derived from; a) at least one vinyl or vinylidene aromatic monomer, or b) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or c) a combination of at least one vinyl or vinylidene aromatic monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer; (2) contains of from about 50 to about 99.5 mole percent of polymer units derived from at least one aliphatic &agr;-olefin having from 2 to 20 carbon atoms; (3) has a melt index (I2) of from about 0.01 to about 100 g/10 min; and (4) has a molecular weight distribution (Mw/Mn) of from about 1.

Abstract: A polycarbonate blend composition with a good balance of high impact resistance, moldability, and controllable gloss with reduced tendencies of pearlescence or delamination in molded articles is prepared by admixing with polycarbonate a substantially linear ethylene polymer or linear ethylene polymer, an olefinic epoxide-containing copolymer, and a polyester.

Abstract: Disclosed is a carbonate polymer composition comprising (a) a carbonate polymer having a weight average molecular weight of from about 20,000 to about 40,000 and (b) from greater than about 0.1 to less than about 1.0 weight percent (based on carbonate polymer composition weight) low volatility aromatic phosphate ester compound, and optionally (c) from about 0.001 to about 0.1 weight percent (based on carbonate polymer compositions weight) of an alkali metal salt having a pH of at least about 7. Preferably the low volatility aromatic phosphate ester is selected from the group of aromatic phosphate ester oligomer compounds or haloaryl phosphate compounds. It has been found to be preferable to use a low volatility aromatic phosphate ester which experiences a weight loss of no more than 5 weight percent at 250.degree. C. when heated to a temperature of 500.degree. C. in a thermogravimetric analysis (TGA) at a heating rate of 20.degree. C. per minute, more preferably no more than 40 percent at 300.degree. C.

Abstract: A blend of polycarbonate and chlorinated polyethylene which has a desirable balance of impact and ignition resistance properties.

Abstract: A blend of polyurethane and chlorinated polyethylene which has a desirable balance of impact, ignition and heat resistance properties.

Abstract: A blend of polycarbonate and chlorinated polyethylene which has a desirable balance of impact and ignition resistance properties.

Abstract: Improved thermoplastic resinous blends are disclosed comprising a carbonate polymer; an organophosphorus compound; a fluorinated polymer; and a halogenated diphenol oligocarbonate.

Abstract: According to the present invention there are obtained improved ignition resistant carbonate polymer blends having unexpectedly better combinations of toughness, ignition resistance, processability and stability. In particular the blend comprises a major amount of carbonate polymer, a minor amount of a rubber-modified monovinylidene aromatic copolymer, and an optional rubbery core/shell graft copolymer impact modifier. As ignition resistance additives the blends contain a metal salt of an aromatic sulfur compound, a buffering aromatic sulfur compound, an organophosphorus compound, and a tetrafluoroethylene polymer.

Abstract: A blended composition containing polycarbonate and polyester and/or an acrylate polymer, modified with poly(tetrafluoroethylene), an organophosphorous compound and an aromatic halogenated carbonate oligomer to obtain ignition resistance properties, and, optionally, an elastomeric impact modifier.

Abstract: Ignition resistant halo aromatic containing polymer compositions are disclosed which are mixtures of a blend of styrene-butadiene-acrylonitrile copolymers and carbonate polymers, 0.001 to 20% by weight of a high elastic memory polytetrafluoroethylene having a heat shrinkage equal to or greater than 15%, and 0.1 to 30% by weight of a halogenated aryl phosphate having at least one bromoaryl group.

Abstract: A process for dispersing one or more powdered ignition resistant or flame retardant additives into carbonate polymers which comprises the steps of preparing a base concentrate having about 5 to about 50 weight per cent of said additives by blending said additives with a carbonate polymer having a melt flow rate from about 3 to about 20, pelletizing said base concentrate having said ignition resistant additive dispersed therein, dry blending said concentrate pellets with carbonate pellets having a melt flow rate from about 1 to about 80 whereby said polymer/concentrate blend has an amount of said additive dispersed therein effective to render said blend ignition resistant, and pelletizing or molding said carbonate polymer/concentrate blend. The use of this method gives ignition resistant carbonate polymers with improved impact properties as measured by Izod impact tests.

Abstract: A flame retardant, impact resistant carbonate polymer composition comprising a mixture of one or more carbonate polymers, an impact modifying quantity of a rubbery polymer containing residual ethylenic unsaturation, a fluorine containing polymer of the fibril forming type and a metal salt of an inorganic acid.

Abstract: Ignition resistant non-haloaromatic containing thermoplastic polymer compositions are disclosed which are mixtures of (1) a non-carbonate polymer such as a polyester terephthalate, a polyacetal, a polymethylmethacrylate and the like, (2) a carbonate polymer, or (3) a blend of (1) and (2) with a high elastic memory polytetrafluoroethylene, an organic phosphate, and a metal salt of an inorganic acid.

Abstract: A composition of matter, being an admixture of polycarbonate and an aliphatic thio compound, molded articles of which release cleanly from, and without adhesion to, a mold.

Abstract: A flame retardant, impact resistant carbonate polymer composition comprising a mixture of one or more carbonate polymers, an impact modifying quantity of a rubbery polymer containing residual ethylenic unsaturation, a fluorine containing polymer of the fibril forming type flame retarding quantities of an aromatic sulfur containing compound and a chlorine or bromine substituted organic compound, and, optionally a melt stability enhancing quantity of an organoposphorus compound.