Abstract: A pentavalent phosphorous compound represented by the formula (I): wherein RA forms a cyclic group together with E, O and P, E represents a direct bond or oxygen atom, F represents a connecting group, and RB represents a phenyl group which may be optionally substituted; and the pentavalent phosphorous compound is useful as a stabilizer for an organic material.

Abstract: A phosphite represented by the formula (I): ##STR1## wherein n repesents 1 or 2; A represents alkylene; B represents a direct bond or alkylene; one of Y and Z represents a hydroxyl group, alkoxy or aralkyloxy, and the other one represents a hydrogen atom or alkyl; X represents a group of formula (II): ##STR2## wherein R.sup.1 and R.sup.2 represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.3 represents a hydrogen atom or an alkyl group; and R.sup.4 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group, or R.sup.4 may be combined to form a direct bond, a sulfur bond (--S--), or an unsubstituted or substituted methylene group; R.sup.5 and R.sup.6 independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group;R.sup.8 represents a hydrogen atom or an alkyl group; andR.sup.

Abstract: A five-coordinate phosphorous compound which is useful as an stabilizer for organic materials and represented by the formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 independently represent hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.3 represents hydrogen atom or an alkyl group; X represents a direct bond, a sulfur atom or a group represented by --CHR.sup.6 -- wherein R.sup.6 represents hydrogen atom, an alkyl group or a cycloalkyl group, and a process for producing the compound (I) are provided.

Abstract: Phosphites inhibitors for organic material represented by the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 independently represent hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.3 is hydrogen atom or alkyl; X is a direct bond, sulfur atom, or methylene group which may optionally be substituted with alkyl or cycloalkyl; A represents a dihydric alcohol residue; B is a direct bond or alkylene; and one of Y and Z represents an alkoxy group or an aralkyloxy group, and the other one represents hydrogen atom or an alkyl group; and a process for producing the same are provided.

Abstract: A phosphite stabilizer for organic material is represented by the formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 is hydrogen, alkyl, cycloalkyl, alkyl, cycloalkyl, aralkyl or phenyl; R is hydrogen or alkyl; X is a direct bond, sulfur atom or a --CHR.sup.6 group in which R.sup.6 represents hydrogen, alkyl or cycloalkyl; A is an alkylene group having 2 to 8 carbon atoms or *--COR.sup.7 -- in which R.sup.7 is a direct bond or alkyl group, and * represents the bond to the oxygen atom of the phenoxy radical; and one of Y and Z represents a hydroxyl group, an alkoxy group or an aralkoxy group and the other one represents atom or an alkyl group.

Abstract: There is provided a thermoplastic resin composition which has damping property, mechanical strength, impact resistance and heat stability resistance in well-balance proportion and has excellent workability, and the composition comprising the following components (A) to (E), in which the ratio by weight of (A)/(B) is from 1/99 to 80/20, the content of the component (C) is from 1 to 50 parts by weight based on 100 parts by weight of the total amount of the components (A) and (B), the content of the component (D) is sufficient amount to compatibilize the components (A) and (B), and the content of the component (E) is from 1 to 120 parts by weight based on 100 parts by weight of the total amount of the components (A) and (B):(A): polyphenylene ether,(B): polyamide,(C): conjugated diene-alkenyl aromatic compound copolymer in which not less than 50% of the conjugated diene compound is polymerized by 1,2-bond or 3,4-bond and the tan .delta. peak temperature thereof is not less than -20.degree. C.

Abstract: Phosphites which are useful as a deterioration inhibitor for organic material and are represented by the following formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.5 and R.sup.6 represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group;R.sup.3 represents hydrogen atom or an alkyl group;R.sup.4 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group, or the two R.sup.4 together form a direct bond, a group represented by --S-- or an optionally substituted methylene group;A represents an alkylene group;W represents a group represented by --O-- or a group represented by --NR.sup.7wherein R.sup.7 represents a hydrogen atom, an alkyl group, etc.;B represents an alkylene group;and one of Y and Z represents a hydroxyl group, an alkoxy group or an aralkyloxy group, and the other one represents hydrogen atom or an alkyl group.

Abstract: An organic phosphorous compound represented by the following formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.5 and R.sup.6 represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group; R.sup.3 represents a hydrogen atom or an alkyl group; R.sup.4 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group, or the two R.sup.4 may be combined with each other to form a direct bond, a sulfur bond (--S--), or aN optionally substituted methylene group; R.sup.7 and R.sup.8 represent a hydrogen atom or an alkyl group, or R.sup.7 and R.sup.

Abstract: Phosphites which are a deterioration inhibitors for organic material represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom, or certain hydrocarbyl radicals; X represents a direct bond, a sulfur atom or a methylene group which may optionally be substituted; Z is --A.sup.1 --CO--O--Y.sup.1 or --A.sup.2 --O--CO--Y.sup.2 wherein A.sup.1 is a direct bond or an alkylene group; Y.sup.1 is aralkyl or aryl; A.sup.2 is a residue of a dihydric alcohol; and Y.sup.2 is alkyl, aralkyl or a phenyl group, and a process for producing the same are provided.

Abstract: A resin composition prepared by simultaneously melting and kneading (A) a polyphenylene ether resin, (B) a polyarylene sulfide resin and (C) a functional compound having a bond or a functional group selected from the group consisting of non-aromatic carbon-carbon multiple bond, oxirane group and derived-carboxyl group and subsequently mixing thereinto (D) a polar compound having, in on molecule, at least two polar groups selected from the group consisting of derived-carboxyl group, derived-hydroxyl group, derived-amino group, derived-mercapto group, derived-sulfonic acid group, oxazoline group, cyanamide group, isocyanate group and oxirane group, provided that at least one of the polar groups is different from at least one of the functional groups which the functional compound (C) has.

Abstract: A resin composition prepared by melting and kneading (A) a thermoplastic resin comprising a polyolefin resin together with (B) a functional compound having one or more bond(s) or one or more functional group(s) selected from the group consisting of non-aromatic carbon-carbon multiple bonds, oxirane groups and substituted carboxyl groups, and subsequently mixing thereinto (C) a polar compound having in one molecule one or more polar group(s) selected from the group consisting of substituted carboxyl groups, substituted hydroxyl groups, substituted amino groups, substituted mercapto groups, substituted sulfonic acid groups, oxazoline groups, isocyanato groups and oxirane groups, provided that at least one of the polar groups of (C) is different from at least one of the functional groups of the functional compound (B), as well as a process for producing said resin composition.

Abstract: A thermoplastic resin composition superior in impact resistance, heat resistance, flexural rigidity, processability and solvent resistance which comprises: (A) 100 parts by weight of a resin composition comprising 5-95% by weight of a polyphenylene ether, or a polyphenylene ether and polystyrene, and 95-5% by weight of a polyamide resin; (B) 5-50 parts by weight of a modified saturated rubber obtained by grafting 5-100 parts by weight of an aromatic vinyl compound on 100 parts by weight of a saturated type rubber and allowing 0.05-10 parts by weight of a compatibilizing agent to react with said rubber; and (c) 0.05-20 parts by weight of a compatibilizing agent.

Abstract: Disclosed is a thermoplastic resin composition comprising a polyphenylene ether and a polyamide and excellent in impact strength wherein an impact strength modifier having structure A--B--A (A or B is styrene) is partially dispersed in said polyphenylene ether and has layered or spherical structure of about 0.02-0.07 .mu.m.A process for producing the thermoplastic resin composition is also disclosed which comprises (1) previously melt kneading (i) at least one compatibilizing agent in an amount effective for compatibilization and (ii) a polyphenylene ether, and then (2) adding (iii) a polyamide in an amount necessary for formation of continuous phase and (iv) an impact strength modifier having structure A--B--A (A or B is styrene) and melt kneading the mixture at a maximum shear rate of 700 sec.sup.-1 or more.

Abstract: There is provided a polymer composition having improved discoloration resistance upon exposure to light comprising a polyphenylene ether, a polyamide, and a combination of (a), a inorganic filler selected from the group consisting of titanium oxide, zinc oxide, zinc sulfide, aluminum oxide, magnesium oxide, titanium oxide coated mica, and metal particles, and (b), an organic dye or pigment which bleaches upon exposure to light, in an amount effective to improve the discoloration resistance.

Abstract: The present invention provides a thermoplastic resin composition improved in stability at the time of processing which comprises (a) 100 parts by weight of a polyphenylene ether resin and (b) 0.001-15 parts by weight of at least one 4-amino-2,2,6,6-tetramethylpiperidyl compound represented by the following formula (I) or (II): ##STR1## wherein R.sub.1 represents a hydrogen atom, an oxygen atom (oxy radical), a hydroxyl group, an alkyl group, a cycloalkyl group, an allyl group, a benzyl group, an aryl group, an alkanoyl group, an alkenoyl group, an alkyloxy group or a cycloalkyloxy group;R.sub.2 represents a hydrogen atom, an alkyl group or ##STR2## where X represents a direct bond, --O-- or --NH--, R.sub.4 represents a direct bond, a straight or branched alkylene group, an alkylidene group or an arylene group, R.sub.5 represents a hydrogen atom, an alkyl group, an aryl group, ##STR3## n represents an integer of 1 to 4, p represents an integer of 2 to 6, andR.sub.

Abstract: A resin composition comprising (A) a polyphenylene ether resin, (B) a polyolefin resin, and optionally (C) an elastomer, and (D) an aliphatic polycarboxylic acid derivative represented by the following general formula:(R.sub.1 O).sub.m R(COOR.sub.2).sub.n (CORN.sub.3 R.sub.4).sub.swherein R represents a saturated hydrocarbon group having 2 to 20 carbon atoms with a linear or branched chain; R.sub.1 represents a hydrogen atom or an alkyl, aryl, acyl or carbonyldioxy group having 1 to 10 carbon atoms; each R.sub.2 represents a hydrogen atom or an alkyl or aryl group having 1 to 20 carbon atoms; R.sub.3 and R.sub.4 each represents a hydrogen atom or an alkyl or aryl group having 1 to 10 carbon atoms; m represents a number equal to 1 or 2; (n+s) is larger than or equal to 2 and, n and s are each larger than or equal to 0; (OR.sub.1) is in an alpha or beta position with respect to a carbonyl group, and in which at least two carbonyl groups are separated by 2 to 6 carbon atoms.

Abstract: A resin composition having improved resistance to discoloration caused by exposure to light, which comprises (a) 5-95% by weight of a polyphenylene ether alone or in combination with a styrene polymer, (b) 95-5% by weight of a polyamide, and based on 100 parts by weight of the sum of (a) and (b), (c) 0.01-30 parts by weight of one or more agents to improve the compatibility of a polyphenylene ether and a polyamide, (d) 0-50 parts by weight of one or more agents to improve the impact resistance, and (e) 0.1-15 parts by weight of metal particles having 10 .mu.m or less of weight average particle size and 3 or more of aspect ratio, and 60% by weight or more of (e) metal particles being included in (b) a polyamide.

Abstract: A thermoplastic resin composition having a good balance among rigidity, impact strength and adhesion of coating is provided, which comprises:a total of 100 parts by weight of (a)-(c) wherein (a) is 1-60% by weight of a polyphenylene ether, (b) 0-60% by weight of an alkenyl aromatic resin excluding unhydrogenated alkenyl aromatic block copolymer of tile following component (e) and (c) 40-99% by weight of a polyamide,(d) 1-50 parts by weight of a polyolefin having a modulus of 10000 kg/cm2 or more at room temperature,(e) 1-50 parts by weight of an unhydrogenated alkenyl aromatic block copolymer, and(f) a compatibilizing agent in an amount necessary to improve compatibility of the above components (a) and (c), said (d)-(f) being every 100 parts by weight of (a)-(c), and wherein the thermoplastic resin composition is obtained by melt kneading firstly said (a), (d) and (f) and then secondly said (c) therewith.

Abstract: A novel thermoplastic resin composition excellent in heat resistance, mechanical properties and processability is provided which comprises a composition containing (A) a dispersing phase of polyphenylene ether obtained by oxidation polymerization of at least one phenol compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue and at least one of them is a hydrogen atom and (B) a crystalline thermoplastic resin matrix phase and (C) a mutual compatibilizer compatible with (A) and/or (B), an average particle diameter in said dispersing phase having of 0.01-10.mu..

Abstract: A novel thermoplastic resin composition excellent in heat resistance, mechanical properties and processability is provided which comprises a composition containing (A) a dispersing phase of polyphenylene ether obtained by oxidation polymerization of at least one phenol compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue and at least one of them is a hydrogen atom and (B) a crystalline thermoplastic resin matrix phase and (C) a mutual compatibilizer compatible with (A) and/or (B) , an average particle diameter in said dispersing phase having of 0.01-10 .mu..