Abstract: Silicone compositions comprising an organopolysiloxane composition and an organic compound capable of coordination with metals are described. Since the organic compound is preferentially adsorbed on a metal surface, the composition is particularly suitable for use in electric or electronic parts to prevent contact failure. A more specific embodiment comprises a diorganopolysiloxane of the average unit formula, R.sub.a SiO.sub.(4-a)/2, wherein each R independently represents an unsubstituted or substituted monovalent hydrocarbon group, and a is a value of from 1.90 to 2.05, a filler, an alkoxysilane or its hydrolyzate, a silylation catalyst made of an organic silicon compound having at least one specific type of group, an organic tin compound, another organosilicon compound capable of reaction with an alcohol in order to stabilize the composition, and an organic compound capable of coordination with metals.

Abstract: ABS copolymers and similar styrene or .alpha.-methylstyrene copolymers with contain an elastomer phase are stabilized against light-induced degradation by a) incorporation of a copolymerizable sterically hindered amine in, and b) addition of a non-copolymerizable sterically hindered amine to, the copolymer. Preferred sterically hindered amines are polyalkylpiperidines.

Abstract: A thermoplastic polyblend of high density polyethylene, polyethylene terephthalate, a polyester elastomer, and a mixture of two aromatic phosphites. The polyblend has greatly improved impact strength and low gasoline permeation properties.

Abstract: A method of preparing polyester materials comprising polymerizing a mixture comprising a diol and a stabilized diester of a naphthalenedicarboxylic acid.

Abstract: A continuous direct esterification and polycondensation process is disclosed for the production of polyester comprising units of ethylene terephthalate as the major repeating units by supplying a slurry of mainly terephthalic acid and ethylene glycol to bis(betahydroxyethyl) terephthalate or its oligomer so as to carry out esterification, followed by polycondensation whereby the resulting oligomer is kept under increasingly reduced pressure, characterized in that a stabilizing solution of an aliphatic diol containing a diethyl or tributhyl phosphite and a hindered phenolic phosphonate is added to the reaction mixture before the start of the polycondensation.

Abstract: A polyarylene sulfide resin composition useful for molded parts comprises (A) 100 parts by weight of a polyarylene sulfide, (B) 0.01 to 10 parts by weight of an organic bisphosphite of the formula: ##STR1## in which R.sub.1 and R.sub.2 are each an alkyl, an alkyl having at least one substituent, an aryl, an aryl having at least one substituent or an alkoxy, (C) 0 to 400 parts by weight of an inorganic filler and (D) 0.01 to 5 parts by weight of at least one alkoxy silane.

Abstract: Disclosed are a material for extrusion molding comprising a styrene-based polymer having a high degree of syndiotactic configuration, a melt viscosity of 10.sup.3 to less than 10.sup.6 poise measured at 300.degree. C. and a shearing rate of 10/sec, and a crystallinity of 15% or more, a process for preparation of the said material and a process for preparation of a molding product therefrom.The molding product prepared according to the present invention has excellent properties such as heat resistance and chemical resistance.

Abstract: The present invention comprises novel single-functional and mixtures of multi-functional oligomeric performance additive compounds having one or more components of Structure A R1 ? ? ##STR1## (The definitions of R, Z1, Z2, Z3, A1, A2, A3 and y are given in the Summary Section), their uses and polymeric compounds and compositions containing them which have enhanced oxidative stabilities, enhanced ultraviolet (UV) and light stabilites and/or enhanced flame retardance. An example is the bis sulfonic acid bispotassium salt reaction product from an oligomeric caprolactone diol (TONE.RTM. 260), 2-sulfobenzoic acid anhydride and potassium carbonate, and use of this product, at levels up to about 3.0%, in a general purpose bisphenol A polycarbonate resin, to enhance the fire resistance or flame retardance of the polycarbonate resin.

Abstract: Disclosed are olefin polymers in nonextruded, aspolymerized particle form having a regular, essentially symmetrical geometrical shape, which are stabilized by depositing on their surface a mixture which is either melted, or in which at least stabilizer (A) is in the liquid state, and which comprises the following stabilizers (percent by weight on the polymer):A) from 0.02% to 0.015% of one or more organic phosphites or phosphonites or mixtures thereof, which are liquid at room temperature or have melting point below 100.degree. C.;B) from 0.025% to 0.2% of one or more phenolic antioxidants with melting point from 45.degree. to 130.degree. C.; and, optionally, one or more of the following additional components:C) from 0.05% to 0.5% of one or more thioethers, or organic polysulfides or mixtures thereof;D) from 0.1% to 1.0% of one or more light stabilizers which are liquid at room temperature or have a melting point below 150.degree. C.

Abstract: Hydrolytically stable phosphite compositions for melt flow and color stabilization of thermoplastics may be prepared from crude tetrahydroabietyl alcohol. The phosphites may be reacting said alcohol with an organophosphite, such as by transesterification. Other synthesis techniques may also be used.

Abstract: Hot melt adhesive compositions stabilized against thermal degradation, discoloration, skin formation and substantial viscosity changes, said adhesives being based on ethylene-vinyl acetate copolymer and a hydrocarbon tackifying resin and containing a stabilizer system of a hindered phenol antioxidant, a phosphite costabilizer and an acid scavenger.

Abstract: Disclosed is an antistatic thermoplastic resin composition comprised of (A) 100 wt.parts of a thermoplastic resin and (B) 0.1-40 wt.parts of a polymer comprising 20-100 wt. % of units an anionic monomer represented by the formula (I): ##STR1## wherein R.sub.1 is H or --CH.sub.3, A.sub.1 is ##STR2## in which n is 0, 1 or 2, ##STR3## in which B is an alkylene, arylene or aralkylene group which may have an ester bond, or ##STR4## in which B is as defined above and R.sub.6 is H or an alkyl group, or A.sub.1 is ##STR5## X is N or P, and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independently represent an alkyl, aryl or aralkyl group may have a substituent,and 80-0 wt. % of units of a copolymerizable vinyl or vinylidene monomer.

Abstract: An inorganic filler-containing polyolefin composition which comprises100 parts by weight of a polyolefin,1-100 parts by weight of an inorganic filler,0.01-1.0 part by weight of a phenolic antioxidant represented by the general formula (I) shown below, andat least one compound selected from the group consisting of the compounds represented by the general formulas (II) to (IV) shown below, and optionally 0.01-1.0 part by weight of a sulfur antioxidant and/or 0.01-2.0 parts by weight of a light stabilizer. ##STR1## wherein R.sub.1 represents an alkyl group of 1-3 carbon atoms,R.sub.2 --CO--NH--(CH.sub.2).sub.n --HN--CO--R.sub.2 (II)wherein R.sub.2 represents an alkyl group or an alkenyl group of 5-21 carbon atoms, and n is an integer of 1 to 6.R.sub.3 --CONH.sub.2 (III)wherein R.sub.3 represents an alkyl group of an alkenyl group of 5-21 carbon atoms, ##STR2## wherein R.sub.

Abstract: An inorganic filler-containing polyolefin composition which comprises100 parts by weight of a polyolefin,1-100 parts by weight of an inorganic filler.0.01-1.0 part by weight of a phenolic antioxidant represented by the general formula (I) shown below, andat least one compound selected from the group consisting of the compounds represented by the general formulas (II) to (IV) shown below, and optionally 0.01-1.0 part by weight of a sulfur antioxidant and/or 0.01-2.0 parts by weight of a light stabilizer. ##STR1## wherein R.sub.1 represents an alkyl group of 1-3 carbon atoms,R.sub.2 --CO--NH--(CH.sub.2).sub.n --HN--CO--R.sub.2 (II)wherein R.sub.2 represents an alkyl group or an alkenyl group of 5-21 carbon atoms, and n is an integer of 1 to 6.R.sub.3 --CONH.sub.2 (III)wherein R.sub.3 represents an alkyl group or an alkenyl group of 5-21 carbon atoms. ##STR2## wherein R.sub.

Abstract: A halogen-containing thermoplastic resin composition comprising a halogen-containing thermoplastic resin (A), a metallic soap (B) and an ash- and alkali metal-lean ethylene-vinyl acetate copolymer hydrolysate (C) having an ethylene content of 20 to 75 mole percent, a degree of saponification not less than 50 mole percent, an ash content not exceeding 300 ppm and an alkali metal content not exceeding 200 ppm, the proportions of (B) and (C) based on 100 parts of weight by (A) being 0.1 to 5 parts by weight and 0.1 to 5 parts by weight, respectively. The composition may further include, in addition to (A), (B), and (C) mentioned above, at least one compound (D) selected from the group consisting of .beta.-diketone compounds, organic phosphorous esters and aminocarboxylic acid compounds, the proportion of (D) based on 100 parts by weight of (A) being 0.

Abstract: Described herein are novel heat-stabilized poly(aryl ether ketone) compositions. Stability is imparted by blending a poly(aryl ether ketone) with an aromatic phosphorus compound and an organic acid having a dissociation constant within a well-defined range.

Abstract: Thermoplastic molding materials containa) from 20 to 80 parts by weight of a polyphenylene ether,b) from 1 to 20 parts by weight of a block copolymer of the general formula A--B--A' consisting of two polyvinylaromatic blocks A and A' and a partially hydrogenated rubber block B,c) from 0 to 70 parts by weight of a polyvinylaromatic andd) from 0 to 40 parts by weight of conventional additives, the sum of a) to d) being 100 parts by weight, wherethe mean molecular weights of A and A' differ by a factor of from 2 to 20,the shorter block A has a mean molecular weight of from 2,000 to 4,000 andthe blocks A and A' together account for from 35 to 50% by weight of b).

Abstract: A process for enhancing the compatibility of polyester and polyamide in blends by adding thereto an effective amount of an aryl phosphoryl azide compound as for example diphenyl phosphoryl azide, and thereafter heating the composition until the desired enhancement in compatibility is obtained as evidenced by a lower of the individual melting points of the polyester and polyamide in the blend.

Abstract: The present invention relates to a polycarbonate resin composition comprising:100 parts by weight of a polycarbonate resin;(A) 00.5 to 1 part by weight of an ester of saturated fatty acid having 10 to 30 carbon atoms and monohydric or polyhydric alcohol having 2 to 30 carbon atoms;(B) 0.05 to 1 part by weight of paraffin wax, and(C) 0 to 0.001 part by weight as a phosphorus atom of at least one phosphorus compound selected from the group consisting of phosphorus acid and phosphorous acid esters, wherein the total amount of the components (A) and (B) is 0.1 to 1 part by weight.The present invention further relates to a polycarbonate resin composition comprising:100 parts by weight of a polycarbonate resin;(D) 0.05 to 1 part by weight of .beta.-long side chain alcohol/behenic acid ester or long chain aliphatic alcohol; and(E) 0 to 0.001 part by weight as a phosphorus atom of at least one phosphorus compound selected from the group consisting of phosphorous acid and phosphorus acid esters.

Abstract: A method of improving the flowability and reducing voids in liquid synthetic thermosetting resins precursor compositions used to pot structures such as a honeycomb core or electronic parts and assemblies. Up to about 0.50 weight percent of a suitable titanate coupling agent is mixed with the liquid resin precursor, preferably in a vacuum or an inert atmosphere, any necessary hardener is added later to the premixed resin with the agent, then the resin is poured into a mold holding the structure to be potted. The titanate coupling agents have the general formula: ##STR1## where: R is an alkoxy, alkyl, alkenyl, alkynyl or aralkyl group having from 1 to about 30 carbon atoms or a substituted derivative thereof;M is zirconium or titanium; andR is independently an aryl, aralkyl, alkaryl, alkyl or alkeno group having from 1 to about 30 carbon atoms.

Abstract: The preparation and use of unique, environmentally benign, economical and selectively modified polynorbornene sponges are described as selective absorbents for hydrocarbons, their halogenated analogs and selected oxygenated derivatives thereof. The modified polynorbornene material contains organo-titanium phosphates or oligophosphates and is environmentally stable for extended periods, easy to use, efficient and absorbate-retentive. Exhausted product will not drip or exude absorbate under conventional landfill disposal conditions and will produce only minimal ash when incinerated.

Abstract: Di-(2,2,6,6-tetramethyl-4-piperidinyl) succinate and glutarate are very effective light stabilizers for thermoplastics, particularly for polyolefins.

Abstract: The present invention relates to polypropylene resin compositions that exhibit an improved smell over prior art polypropylene resin compositions and comprises a polypropylene resin containing an inorganic filler, at least one phenolic antioxidant, at least one phosphorus antioxidant, and fine powders comprising aggregates of intimately bonded particles comprising zinc oxide, titanium dioxide and water.

Abstract: Polyolefin material having improved resistance to heat and discoloration comprising amount of a stabilizing composition said stabilizing composition comprising a relatively high molecular weight hindered amine compound and an organic phosphorus compound having relatively low hygroscopicity and a hydrotalcite.

Abstract: Stabilizers for chlorine-containing olefin polymers containing Ca complexes of 1,3-diketones, hydrocarbon waxes and esters and/or partial esters of saturated, straight-chain C.sub.12 -C.sub.34 monocarboxylic acids, in conjunction with zinc salts of saturated, straight-chain C.sub.8 -C.sub.22 monocarboxylic acids and esters of phosphorous acid, provide the polymers with excellent properties in regard to processibility and temperature stability.

Abstract: Bislactams of the general formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another are each C.sub.1 -C.sub.4 -alkyl, or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4 form a tetra- or pentamethylene radical, and R.sup.5 is hydrogen, carbonyl-C.sub.1 -C.sub.8 -alkyl, benzoyl, C.sub.1 -C.sub.8 -alkyl, C.sub.7 -C.sub.10 -phenylalkyl, the phenyl nucleus being unsubstituted or substituted by one or two C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkyoxy, fluorine, chlorine or bromine radicals, or is C.sub.1 -C.sub.3 -cyanoalkyl, C.sub.2 -C.sub.4 -hydroxyalkyl or C.sub.2 - or C.sub.3 -aminoalkyl, and the acid addition salts and hydrates of these compounds.The compounds (I) are stabilizers for organic materials.

Abstract: A composition for temporary protection paint, containing alkali-soluble resin and an ester phosphite compound.

Abstract: A composition comprising,(a) 1 to 99 parts by weight of a specific hydrogenated product of a block copolymer having at least one polymer block composed mainly of a vinyl aromatic compound and at least one polymer block composed mainly of a conjugated diene compound, a modified product which comprises said product modified with an .alpha.,.beta.-unsaturated carboxylic acid or a derivative thereof, or a mixture of said product and said modified product, wherein the content of the vinyl aromatic compound prior to hydrogenation is 5 to 95% by weight and a content of vinyl linkages [V] prior to hydrogenation which originated from the conjugated diene compound is 10 to 80%, said product satisfying the following conditions;(1) the hydrogenated ratio [A] of the total of aliphatic double bonds which originated from the conjugated diene compound is not lower than 5% and lower than 50%, and[B]/[V].sup.

Abstract: A stabilized polyolefin composition having improved weathering resistance is provided, whereby the following four components are incorporated into a polyolefin:(A) a hindered piperidine compound having a molecular weight of more than 750, such as poly-{[6-morpholino-1,3,5-triazine-2,4-diyl][2,2,6,6-tetramethyl-4-piperid yl)imino]hexamethylene[2,2,6,6-tetramethyl-4-piperidyl)imino]},(B) a hindered piperidine compound having a molecular weight of less than 500, such as bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate,(C) a benzoate compound such as 2,4-di-t-butylphenyl 3,5-di-t-butyl-4-hydroxybenzoate, and(D) a phosphorus-containing compound such as bis(2,4-di-t-butylphenyl) pentaerythritol diphosphite.

Abstract: Disclosed herein are stretched poly(arylene thioether) block copolymer films and a production processes thereof, said block copolymer film comprising a thermoplastic material composed of (A) 100 parts by weight of a particular poly(arylene thioether) block copolymer, (B) up to 100 parts by weight of at least one other thermoplastic resin, and (C) up to 15 parts by weight of at least one filler.

Abstract: Disclosed herein are melt-stable thermoplastic resin compositions comprising (A) 100 parts by weight of a particular poly(arylene thioether) block copolymer, (B) --400 parts by weight of at least one of thermoplastic resins, and (C) 0-400 parts by weight of at least one filler per 100 parts by weight of the resin components. At least either one of Component (B) and Component (C) is contained in a proportion of at least 0.1 part by weight per 100 parts by weight of Component (A). The poly(arylene thioether) block copolymer alternately comprise at least one poly(arylene thioether-ketone) block having predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other and at least one poly(arylene thioether) block having predominant recurring units of the formula ##STR2## Also disclosed are compositions obtained by stabilizing by the melt-stable thermoplastic resin compositions with a basic compound and products molded or formed product from these compositions.

Abstract: Disclosed herein are poly(arylene thioether) block copolymer fibers formed by melt-spinning a thermoplastic material composed of (A) 100 parts by weight of a particular poly(arylene thioether) block copolymer, (B) up to 50 parts by weight of at least one other thermoplastic resin and (C) up to 10 parts by weight of at least one filler.

Abstract: Disclosed herein are poly(arylene thioether) block copolymer fibers formed by melt-spinning a thermoplastic material composed of (A) 100 parts by weight of a particular poly(arylene thioether) block copolymer, (B) up to 50 parts by weight of at least one other thermoplastic resin and (C) up to 10 parts by weight of at least one filler.

Abstract: Disclosed herein are stretched poly(arylene thioether) block copolymer films and production processes thereof, said block copolymer film comprising a thermoplastic material composed of (A) 100 parts by weight of a particular poly(arylene thioether) block copolymer, (B) up to 100 parts by weight of at least one other thermoplastic resin, and (C) up to 15 parts by weight of at least one filler.

Abstract: An antimicrobial solution of a microbiologically active organo sulfonyl ethylene, isoindole dicarboximide or zinc hydroxypyridine thionate dissolved in an organo phosphorus compound selected from the group consisting of organophosphites and organophosphonates.

Abstract: A process for enhancing the fabrication of thermoplastic polymers entailing the addition of from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a processing aid, said processing aid comprising a processing additive, such as a silicon or a polyol, and a processing adjuvant, such as a phosphate.

Abstract: Cyclic carbonate oligomers are stabilized according to the present invention by admixing a composition containing cyclic carbonate oligomers with an amount of an organic phosphite sufficient to substantially prevent premature polymerization of the oligomers.

Abstract: A process for enhancing the fabrication of thermoplastic polymers entailing the addition of from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a processing aid, said processing aid comprising a processing additive, such as a silicone or a polyol, and a processing adjuvant, such as a phosphate.

Abstract: An aromatic polyester composition comprising an aromatic polyester derived from terephthalic acid and/or isothalic acid and a bisphenol and a stabilizer chosen from P-containing organic esters, O, S, or F-containing organic compounds or their mixtures.

Abstract: Stabilizers for organic polymers, consisting of one or more phosphorus-containing compounds of the family of alkyl- and/or phenyl-phosphites, alkyl- and/or phenyl-phosphonites, alkyl- and/or phenyl-diphosphonites, are directly added to the reaction mixture during the (co)polymerization of .alpha.-olefins or of mixtures thereof with other unsaturated monomers.The so-obtained polymeric compositions result perfectly stabilized, and show a thermo-oxidative resistance higher than that of the same polymeric compositions to which the same antioxidants have been added by a traditional route.

Abstract: A polycarbonate resin composition comprising a blended mixture of(A) 100 parts by weight of a polycarbonate resin having a viscosity average molecular weight of from about 13,000 to about 18,000,(B) 0.01 to 0.1 part by weight of a partial ester of a monobasic fatty acid having 10 to 22 carbon atoms with a polyhydric alcohol having 2 to 10 carbon atoms,(C) 0.001 to 0.01 part by weight of trimethyl phosphate, and(D) 0.00001 to 0.002 part by weight, calculated as phosphorus atoms, of a phosphite ester having 9 to 60 carbon atoms.

Abstract: A new polyimide film which contains 30 to 800 ppm of titanium based on the weight of the film, and a process for producing a new polyimide film which comprises introducing an organic titanium compound substance into the film-forming polyimide resin prior to the casting step. This process enables one to control the film surface forming process and improve directly the adhesive properties of the film.

Abstract: An aromatic tetraphosphite suitable for use as an antioxidant for organic materials. The aromatic tetraphosphite has the formula: ##STR1## wherein R, R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen and straight chain, branched and cyclic alkyl groups having from 1 to about 18 carbon atoms with the provision that at least two of the R, R.sup.1 and R.sup.2 groups are alkyl groups.

Abstract: An aromatic diphosphite as a antioxidant for organic materials. The aromatic diphosphite has the formula: ##STR1## wherein each R is independently selected from the group consisting of hydrogen and methyl; and R.sup.1, R.sup.2 and R.sup.3 are each independently selected from the group consisting of hydrogen and straight chain and branched alkyl groups having from 1 to about 18 carbon atoms with the proviso that at least two of said R.sup.1, R.sup.2, and R.sup.3 are alkyl groups having at least three carbon atoms.

Abstract: A flame retardant polyolefin resin composition which, when molded, affords a molded product having highly flame retardant properties, no dripping properties, a smooth surface and an excellent appearance and superior resistances to heavy metal deterioration, heat deterioration and weather is provided, which composition consists of (A) 5-60% by weight of a halogen-containing flame retardant, (B) 100-10% by weight of antimony trioxide based on the weight of the halogen-containing flame retardant, (C) 0.5-15% by weight of a crosslinking agent, (D) 0.05-5% by weight of a specified thiophosphite, and (E) the balance % by weight of a polyolefin resin, the total of the quantities of (A), (B), (C), (D) and (E) being 100% by weight. If necessary, a processing aid may be further added to the above flame retardant polyolefin resin composition.

Abstract: Polyacetal resin compositions are provided having improved light stability and comprising an alkylidene bis(benzotriazolyl phenol) having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about eleven carbon atoms;R.sub.2 is selected from the group consisting of alkyl having from one to about twelve carbon atoms; and arylalkyl having from seven to about eighteen carbon atoms; andX is selected from the group consisting of hydrogen; halogen; alkyl having from one to about twelve carbon atoms; aryl alkyl having from seven to about eighteen carbon atoms; alkoxy having from one to about twelve carbon atoms; phenoxy; arylalkoxy having from seven to about eighteen carbon atoms; and phenyl.

Abstract: New hindered piperidinoalcohol 1,1,1-trioxyalkanes are disclosed. In the 1,1,1-trioxyalkanes, at least on 1,1,1-trioxyalkane group is linked to the residue of an alcohol linked to the 4-position of a 2,2,6,6-tetraalkylpiperidine compound having 12 to 75 carbon atoms. For each 1,1,1-trioxalkane group, there are 1 to 3 tetraalkylpiperidine groups. The alkyl groups linked to the piperidine ring have from one to five carbon atoms each. The fourth substituent on the carbon atom of the 1,1,1-trioxyalkane is a hydrogen atom or an aliphatic group having one to five carbon atoms.The disclosed 1,1,1-trioxyalkanes protect a variety of synthetic resins against the deteriorative effects of exposure to actinic light.Stabilizer compositions comprising a disclosed 1,1,1-trioxyalkane and a known polymer stabilizer, as well as synthetic resin compositions stabilized with such stabilizer compositions, are also disclosed.

Abstract: A flame-resisting polycarbonate resin composition is disclosed, comprising (a) 100 parts by weight of an aromatic polycarbonate resin comprising (i) a copolymer of a halogenated 4,4'-dihydroxydiphenylalkane and a non-halogenated 4,4'-dihydroxydiphenylalkane or (ii) the copolymer (i) or a homopolymer of the non-halogenated 4,4'-dihydroxydiphenylalkane having incorporated therein a homo-oligomer of the halogenated 4,4'-dihydroxydiphenylalkane and/or a co-oligomer of the halogenated 4,4'-dihydroxydiphenylalkane and the non-halogenated 4,4'-dihydroxydiphenylalkane, (b) 0.001 to 5.0 parts by weight of an organic potassium phosphate, (c) 0.001 to 0.5 parts by weight of an phosphorous ester compound, and (d) 0 to 0.5 part by weight of an organosilicone compound. The resin composition has an improved viscosity characteristic and is, therefore, prevented from dripping during combustion, and does not suffer change in hue or reduction in molecular weight during molding.

Abstract: Thermoplastic molding compositions which comprise (a) a poly(C.sub.2-6 alkylene terephthalate) resin and a major proportion of (b) an aromatic polycarbonate resin with (c) a polyolefin resin or an olefin copolymer, provide molded articles of improved impact resistance. In preferred embodiments, articles molded from the compositions possess improved impact resistance, lower specific gravity, good tensile strength, and improved resistance to distortion at elevated temperatures under load.

Abstract: Disclosed is a resinous composition having excellent discoloration, processability, heat resistancy and durability comprising,A. 100 parts by weight of an aromatic polyester having the general formulae (I) and (II) ##STR1## B. 0.01 to 5 parts by weight of a phosphoric compound, and C. 0.01 to 0.1 part by weight of a carboxylic acid metal salt. Also disclosed is a process for producing shaped articles, the improvement which comprises adding the additives stepwise to the aromatic polyester.