Abstract: A cycloolefin resin composition which controls the flexibility of a cycloolefin resin and may be molded in an environment having a temperature exceeding about 140° C. is provided. A cycloolefin resin film, a cycloolefin resin preform and the like are provided utilizing the cycloolefin resin composition including two or more cycloolefin copolymer resins having Tg values different from each other by about 10° C. or more, and the storage modulus of about 120° C. (E?120) relative to the storage modulus of about 50° C. (E?50), namely E?120/E?50 is set within the range of about 0.15 to about 0.65.

Abstract: A resin composition formed by mixing 99 to 70 weight % of specific whole aromatic polyesteramide liquid crystal resin (A) with 1 to 30 weight % of epoxy modified polyolefin-base resin (B) and by melting and kneading both of the resins, wherein the resin composition having a melt viscosity of 60 to 4000 Pa·s at a shear rate of 1000/second at a temperature which is 20° C. higher than the melting point and having a melt tension of 20 mN or more at a take-over speed of 14.8 m/minute, is melt within a temperature range of a melting point to the melting point +40° C., a parison (P) is formed by extruding it with an extrusion speed equal to or higher than 0.3 kg/minute and lower than 5 kg/minute, a pair of moldings placed so as to sandwich the parison (P) are closed at a predetermined mold closing pressure, and air is blown into the parison (P).

Abstract: A resin composition formed by blending 10 to 25 weight parts of the epoxy modified polystyrene resin (B) to 100 weight parts of the liquid crystal polyester and/or the liquid crystal polyester amide (A) and by melt-kneading the two materials, wherein the resin composition having a melt viscosity of 60 to 4000 Pa·s at a shear rate of 1000/second at a temperature which is 20° C. higher than the melting point and having a melt tension of 20 mN or more at a take-over speed of 15 m/minute, is melt within a temperature range of a melting point to the melting point +40° C., a parison P is formed by extruding it with an extrusion speed equal to or higher than 0.3 kg/minute and lower than 5 kg/minute, a pair of moldings placed so as to sandwich the parison P are closed at a predetermined mold closing pressure, and air is blown into the parison P.

Abstract: A cycloolefin resin composition which controls the flexibility of a cycloolefin resin and may be molded in an environment having a temperature exceeding about 140° C. is provided. A cycloolefin resin film, a cycloolefin resin preform and the like are provided utilizing the cycloolefin resin composition including two or more cycloolefin copolymer resins having Tg values different from each other by about 10° C. or more, and the storage modulus of about 120° C. (E?120) relative to the storage modulus of about 50° C. (E?50), namely E?120/E?50 is set within the range of about 0.15 to about 0.65.

Abstract: A purpose of the present invention is to obtain a hollow extruded article by easy blow molding or extrusion molding to give a draw down resistance and a uniform wall thickness of the article without damaging low gas permeability which is a characteristic property of a liquid-crystalline polymer. A resin composition for extrusion molding which is prepared by melting and kneading 99-70 wt. % of wholly aromatic polyester amide liquid crystal resin (A) having a melting point of 270-370° C. and a melt viscosity at 1000/sec. shear rate of 20-60 Pa·s at Temperature T1 which is higher than 20° C. from said melting point, and containing (I) 1-15 mole % of 6-hydroxy-2-naphthoic acid residue, (II) 40-70 mole % of 4-hydroxybenzoic acid residue, (III) 5-28.5 mole % of aromatic diol residue, (IV) 1-20 mole % of 4-aminophenol residue, and (V) 6-29.5 mole % of aromatic dicarboxylic acid residue; and 1-30 wt. % of epoxy modified polyolefin type resin (B), and has a melt viscosity at 1000/sec.

Abstract: A resin composition formed by mixing 99 to 70 weight % of specific whole aromatic polyesteramide liquid crystal resin (A) with 1 to 30 weight % of epoxy modified polyolefin-base resin (B) and by melting and kneading both of the resins, wherein the resin composition having a melt viscosity of 60 to 4000 Pa·s at a shear rate of 1000/second at a temperature which is 20° C. higher than the melting point and having a melt tension of 20 mN or more at a take-over speed of 14.8 m/minute, is melt within a temperature range of a melting point to the melting point +40° C., a parison (P) is formed by extruding it with an extrusion speed equal to or higher than 0.3 kg/minute and lower than 5 kg/minute, a pair of moldings placed so as to sandwich the parison (P) are closed at a predetermined mold closing pressure, and air is blown into the parison (P).

Abstract: The present invention provides a liquid crystalline resin composition capable of readily blow-molding a molded article having uniform thickness, with the addition of good blow-moldability owing to the improved drawdown-resistant property, the improved melt-tension increase rate, and other properties without deteriorating the low gas-permeability which is a characteristic of liquid crystalline resin.

Abstract: A resin composition formed by blending 10 to 25 weight parts of the epoxy modified polystyrene resin (B) to 100 weight parts of the liquid crystal polyester and/or the liquid crystal polyester amide (A) and by melt-kneading the two materials, wherein the resin composition having a melt viscosity of 60 to 4000 Pa·s at a shear rate of 1000/second at a temperature which is 20° C. higher than the melting point and having a melt tension of 20 mN or more at a take-over speed of 15 m/minute, is melt within a temperature range of a melting point to the melting point +40° C., a parison P is formed by extruding it with an extrusion speed equal to or higher than 0.3 kg/minute and lower than 5 kg/minute, a pair of moldings placed so as to sandwich the parison P are closed at a predetermined mold closing pressure, and air is blown into the parison P.

Abstract: A purpose of the present invention is to obtain a hollow extruded article by easy blow molding or extrusion molding to give a draw down resistance and a uniform wall thickness of the article without damaging low gas permeability which is a characteristic property of a liquid-crystalline polymer. A resin composition for extrusion molding which is prepared by melting and kneading 99-70 wt. % of wholly aromatic polyester amide liquid crystal resin (A) having a melting point of 270-370° C. and a melt viscosity at 1000/sec. shear rate of 20-60 Pa·s at Temperature T1 which is higher than 20° C. from said melting point, and containing (I) 1-15 mole % of 6-hydroxy-2-naphthoic acid residue, (II) 40-70 mole % of 4-hydroxybenzoic acid residue, (III) 5-28.5 mole % of aromatic diol residue, (IV) 1-20 mole % of 4-aminophenol residue, and (V) 6-29.5 mole % of aromatic dicarboxylic acid residue; and 1-30 wt. % of epoxy modified polyolefin type resin (B), and has a melt viscosity at 1000/sec.

Abstract: The present invention provides a liquid crystalline resin composition capable of readily blow-molding a molded article having uniform thickness, with the addition of good blow-moldability owing to the improved drawdown-resistant property, the improved melt-tension increase rate, and other properties without deteriorating the low gas-permeability which is a characteristic of liquid crystalline resin.

Abstract: The present invention is to provide an amorphous wholly aromatic polyester amide composition which has an excellent stretching property and a good adhesion to a heterogeneous polymer and thereby can be in particular suitably used for a multilayer film, or a multilayer sheet, a multilayer blow formed product and the like. That is, (the first invention) an amorphous wholly aromatic polyester amide composition obtained by blending 1 to 30% by weight of a modified polyolefin resin or a polyamide resin having a melting point of 230° C.

Abstract: The invention provides an amorphous wholly aromatic polyester amide which has excellent stretching property and good adhesion to a heterogeneous polymer and thereby can be suitably used for a multilayer film, a multilayer blow molded article and the like. That is, the amorphous wholly aromatic polyester amide which is a wholly aromatic polyester amide obtained by copolymerizing (A) 4-hydroxybenzoic acid, (B) 2-hydroxy-6-aphthoic acid, (C) aromatic aminophenol and (D) aromatic dicarboxylic acid, wherein (1) the ratio of (C) the aromatic aminophenol is from 7 to 35% by mol, (2) the ratio of a bending monomer among starting material monomers is from 7 to 35% by mol, (3) the ratio ((A)/(B)) between (A) the 4-hydroxybenzoic acid and (B) the 2-hydroxy-6-naphthoic acid is from 0.15 to 4.0, (4) the ratio of isophthalic acid is at least 35% by mol or more in (D) the aromatic dicarboxylic acid, (5) a melting point is not observed by DSC measurement at a temperature rising rate of 20° C.

Abstract: A polyalkylene terephthalate-series resin (e.g., polyethylene terephthalate-series resin, polybutylene terephthalate-series resin) is improved in flame retardancy by using a flame retardant containing a phosphazene compound and a phenolic resin. The phosphazene compound is a compound shown by the following formulae (1) and/ or (2), and/or a compound being the above compound crosslinked with a phenylene group or a crosslinking group shown by the following formula (3a). The proportion of the phosphazene compound to the phenolic resin is the former/the latter=5/95 to 95/5 (weight ratio). By means of the above flame retardant, a polyalkylene terephthalate-series resin can be highly improved in flame retardancy without deteriorating the properties. Further, by adding the other flame retardant (e.g., a nitrogen-containing flame retardant, a phosphate-series flame retardant), and a carbonizable resin, the flame retardancy can be enhanced.

Abstract: The present invention is to provide a liquid crystal polymer molded article which has an excellent low warpage and is able to be suitably used particularly as a connector or the like. That is, a molded article of a liquid crystal composition in which 100 parts by weight of a liquid crystal polymer (A) and 5-100 parts by weight of a non-fibrous filler (B) are compounded where the non-fibrous filler is so dispersed that, when a diffraction peak of the non-fibrous filler is measured by a transmission method and a reflection method by means of a wide-angle X-ray diffraction, the diffraction peak of the non-fibrous filler which can be confirmed by the reflection method is not confirmed by the transmission method.

Abstract: The present invention is to provide a liquid crystal polymer molded article which has an excellent low warpage and is able to be suitably used particularly as a connector or the like. That is, a molded article of a liquid crystal composition in which 100 parts by weight of a liquid crystal polymer (A) and 5-100 parts by weight of a non-fibrous filler (B) are compounded where the non-fibrous filler is so dispersed that, when a diffraction peak of the non-fibrous filler is measured by a transmission method and a reflection method by means of a wide-angle X-ray diffraction, the diffraction peak of the non-fibrous filler which can be confirmed by the reflection method is not confirmed by the transmission method.

Abstract: A polyalkylene terephthalate-series resin (e.g., polyethylene terephthalate-series resin, polybutylene terephthalate-series resin) is improved in flame retardancy by using a flame retardant containing a phosphazene compound and a phenolic resin. The phosphazene compound is a compound shown by the following formulae (1) and/ or (2), and/or a compound being the above compound crosslinked with a phenylene group or a crosslinking group shown by the following formula (3a). The proportion of the phosphazene compound to the phenolic resin is the former/the latter=5/95 to 95/5 (weight ratio). By means of the above flame retardant, a polyalkylene terephthalate-series resin can be highly improved in flame retardancy without deteriorating the properties. Further, by adding the other flame retardant (e.g., a nitrogen-containing flame retardant, a phosphate-series flame retardant), and a carbonizable resin, the flame retardancy can be enhanced.

Abstract: A teaching playback swing-phase-controlled above-knee prosthesis comprises a thigh frame, a leg frame, an air cylinder interconnecting the thigh and leg frames and provided with adjusting means for adjusting the degree of opening the valve of the air cylinder to a plurality of degrees respectively for a plurality of walking speeds selected during trial walking, a mode selecting switch having positions respectively for setting degrees of opening of the valve of the air cylinder in a teaching mode and for a playback mode in which one of the degrees of opening is selected according to an actual walking speed, an opening detector for detecting the degree of opening of the valve of the air cylinder, an opening storage device for storing a plurality of set degrees of opening of the valve of the air cylinder, a phase detector for detecting swing phases and stance phases, walking speed detector for detecting an actual walking speed, and control unit for adjusting the degree of opening of the valve of the air cylinder

Abstract: Polyester resins are prepared by reacting a lower alkyl ester of an aromatic dicarboxylic acid with an aliphatic diol to form an aromatic polyester, and which includes (i) subjecting to transesterification reaction conditions in the presence of a titanium compound catalyst a transesterification reaction system having the lower alkyl ester of the aromatic dicarboxylic acid, the aliphatic and between 0.02 to 5.0 mole percent, based on the amount of the lower alkyl ester of the aromatic dicarboxylic acid, of an aromatic sulfonic acid compound represented by the following general formula (I):OH--R--O--Ar--SO.sub.3 M (I)wherein Ar is a p-substituted benzene group or a 2,6-substituted naphthalene group, R is a divalent group selected from among --CH.sub.2 CH(CH.sub.3)--, --CH(CH.sub.3)CH.sub.2 --, --CH.sub.2 CH(CH.sub.3)-- and --CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 --, and M is an alkali metal selected from the group consisting of lithium, sodium and potassium.

Abstract: Moldable polyester resin compositions and molded articles therefrom include, based on the total weight of all resin components:(A) between 2 to 98% by weight of a compatibilizing metal sulfonate group-containing aromatic polyester copolymer which is the polycondensation reaction product of (a) an aromatic dicarboxylic acid or its ester-forming derivative, (b) a diol compound or its ester-forming derivative, and (c) an ester-forming compound containing a metal sulfonate group;(B) between 2 to 98% by weight of an additive resin which is one of (B-I) an olefin copolymer which is the copolymerization reaction product between an olefin with at least one of an .alpha.,.beta.-unsaturated carboxylic acid or its derivative and a vinyl alcohol or its ester, and (B-II) a polyamide resin; and, optionally(C) between 0 to 96% by weight of a non-compatibilizing aromatic polyester resin.

Abstract: A modified polyester resin is the reaction product of:(A) an acid component mainly comprised of terephthalic acid, 2,6-naphthalene dicarboxylic acid or a lower alcohol ester thereof,(B) a diol component mainly comprising an alkylene glycol having 2 to 8 carbon atoms, and(C) an aromatic sulfonic acid compound of the following general formula (1):HO(RO).sub.n --Ar--SO.sub.3 M (1)where Ar represents a benzene or naphthale ring, n represents an integer from 1 to 10, R represents a group selected from among alkylenes having 2 or 3 carbon atoms and when n is 2 or more, R may be the same as or different from one another, and M represents an alkali metal selected from lithium, sodium and potassium. The modified polyester resin also satisfies the following formulas (2) and (3):0.25.ltoreq.x.ltoreq.100 (meq/kg) (2)2.ltoreq.(x/CEG).times.100.ltoreq.