摘要:
A polyphenylene ether resin composition having improved heat stability and good color, said composition comprising a polyphenylene ether resin matrix, and dispersed therein, a diphosphonite of the formula ##STR1## wherein R.sub.1 groups are identical or different and each represents a linear or branched alkyl group having 1 to 10 carbon atoms.
摘要:
A polyphenylene ether resin composition having improved heat stability, said composition comprising a polyphenylene ether resin matrix, and dispersed therein, a phosphonic acid or its derivative of the formula ##STR1## wherein R.sub.1 represents an unsubstituted or substituted phenyl or naphthyl group, or a linear or branched alkyl group with 1 to 18 carbon atoms, or a group of the following formula (a) ##STR2## R.sub.2 and R.sub.3 are identical or different and each represents hydrogen atom, a metal, an unsubstituted or substituted phenyl group, or an alkyl group with 1 to 10 carbon atoms; and R.sub.4 is a divalent hydrocarbon group with 2 to 10 carbon atoms.
摘要:
A polyphenylene ether resin composition having improved heat stability, said composition comprising a polymer matrix composed of a polyphenylene ether resin and a vinyl aromatic resin, and dispersed in the polymer matrix, at least one compound selected from the group consisting of(1). 2-(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyanilino)-4,6-di-C.sub.5 -C.sub.15 -alkylthio-1,3,5-triazines,(2). .omega.,.omega.'-thiodi(C.sub.2 -C.sub.6 polymethylene)-bis[3-(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyphenyl)-polymethylene(C.sub.1 -C.sub.4)-carboxylates],(3). N,N'-C.sub.2 -C.sub.10 polymethylene-bis[(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyphenyl)-polymethylene(C.sub.1 -C.sub.4)carboxamides], and(4). tetrakis-{methylene-[(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyphenyl)-polymethylene(C.sub.1 -C.sub.4)carboxylate]}methanes.
摘要:
A polyphenylene ether resin composition comprising(1) a polyphenylene ether resin,(2) an oxanilide represented by the following formula ##STR1## wherein R.sup.1 and R.sup.6 are identical or different and each represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or an alkoxy group having 1 to 15 carbon atoms, R.sup.2 and R.sup.7 are identical or different and each represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms, R.sup.3 and R.sup.8 are identical or different and each represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and R.sup.4 and R.sup.5 are identical or different and each represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a dialkylaminoalkyl group with the alkyl moiety having 1 to 6 carbon atoms,(3) an organic phosphite, and(4) a hindered phenolic antioxidant.
摘要:
A polyphenylene ether resin composition comprising(A) a polyphenylene ether resin,(B) at least one compound selected from the group consisting of 2-(o-hydroxyphenyl)benzotriazoles represented by the following formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and each represents a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group, an alkoxy group, an alkoxycarbonylalkyl group, an aryl group or an aralkyl group, and X represents a halogen atom, and 2-hydroxybenzophenones represented by the following formula (II) ##STR2## wherein R.sup.5 represents a hydrogen atom, a hydroxyl group or an alkoxy group, R.sup.6 represents a hydrogen atom or a hydroxyl group, R.sup.7 represents a hydrogen atom or a sulfonic acid group, and R.sup.8 represents a hydrogen atom, an alkyl group or an aromatic acyl group,(C) an organic phosphite, and(D) a sterically hindered phenol.
摘要:
A thermoplastic blended composition comprising 15-80% by weight of polyphenylene ether, 5-60% by weight of a styrene resin and 2-15% by weight of an aromatic polycarbonate. The composition has superior heat resistance, fatigue resistance and processability.
摘要:
Stabilized polyphenylene ether type resin composition obtained by compounding a polyphenylene ether type resin with one or more of stabilizer-component such as those respectively (a) a high molecular phosphorous ester having at least three phosphorous ester-bondings per molecule, (b) a high molecular phosphorous ester as said above and dicarboxylic acid dihydrazide substitution product, (c) a high molecular phosphorous ester as said above and steric hindered phenols and (d) a high molecular phosphorous ester as said above, steric hindered phenols and dicarboxylic acid dihydrazide substitution product; and, if desired, boron oxide.
摘要:
A polyphenylene ether resin composition comprising(A) a polyphenylene ether resin,(B) a vinyl aromatic resin, and(C) a phenylformamidine derivative in a heat stabilizing amount.
摘要:
A polyphenylene ether resin composition having excellent fire retardancy comprising(A) a polyphenylene ether resin, and(B) at least one phosphate compound selected from the group consisting of biphenyl phosphate compounds and naphthyl phosphate compounds.
摘要:
A membrane for gas separation which comprises a silylated polyphenylene ether is disclosed. Said silylated polyphenylene ether contains a constituting unit containing an organosilane or siloxane group represented by the following formula in at least a part of the repeating unit thereof: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen atom or a group of the formula --Si(R.sub.5)(R.sub.6)(R.sub.7), wherein R.sub.5, R.sub.6 and R.sub.7 each represents an alkyl group; l and n each represents 0 or an integer from 1 to 3; and m represent an integer of from 1 to 3; with the proviso that R.sub.1, R.sub.2, R.sub.3 and R.sub.4 do not simultaneously represent hydrogen atoms.