Abstract: A method for producing a dicyclopentadiene-modified phenolic resin. The method including reusing a fluorine-based ion-exchange resin as a catalyst in a reaction between a phenol and a dicyclopentadiene, the fluorine-based ion-exchange resin having been used as a catalyst when a phenol and a dicyclopentadiene are allowed to react with each other to produce a first dicyclopentadiene-modified phenolic resin. In the method, the fluorine-based ion-exchange resin is washed with an organic solvent. The dicyclopentadiene-modified phenolic resin obtained by the method has a stable quality, has a high purity, and is inexpensive.

Abstract: A phenolic resin composition and an epoxy resin composition from which a cured epoxy resin having excellent heat resisting properties and a low dielectric constant can be produced. The phenolic resin composition contains a modified phenolic resin and a tetrakisphenolethane compound, the modified phenolic resin being prepared by condensation of a cyclic hydrocarbon compound having two or more unsaturated bonds and a compound having a phenolic hydroxyl group, in which the content of the tetrakisphenolethane compound is 3% to 60% by mass with respect to the total content of the modified phenolic resin and the tetrakisphenolethane compound. The epoxy resin composition is prepared by epoxidizing the phenolic resin composition. The cured epoxy resin is prepared by allowing the epoxy resin composition to react with a hardener.

Abstract: A method for producing a dicyclopentadiene-modified phenolic resin. The method including reusing a fluorine-based ion-exchange resin as a catalyst in a reaction between a phenol and a dicyclopentadiene, the fluorine-based ion-exchange resin having been used as a catalyst when a phenol and a dicyclopentadiene are allowed to react with each other to produce a first dicyclopentadiene-modified phenolic resin. In the method, the fluorine-based ion-exchange resin is washed with an organic solvent. The dicyclopentadiene-modified phenolic resin obtained by the method has a stable quality, has a high purity, and is inexpensive.

Abstract: A phenolic resin composition and an epoxy resin composition from which a cured epoxy resin having excellent heat resisting properties and a low dielectric constant can be produced. The phenolic resin composition contains a modified phenolic resin and a tetrakisphenolethane compound, the modified phenolic resin being prepared by condensation of a cyclic hydrocarbon compound having two or more unsaturated bonds and a compound having a phenolic hydroxyl group, in which the content of the tetrakisphenolethane compound is 3% to 60% by mass with respect to the total content of the modified phenolic resin and the tetrakisphenolethane compound. The epoxy resin composition is prepared by epoxidizing the phenolic resin composition. The cured epoxy resin is prepared by allowing the epoxy resin composition to react with a hardener.

Abstract: A heat-curable composition comprises 30-70 mass % of a compound represented by formula (1) and 70-30 mass % of a compound represented by formula (2). In formulae (1) and (2), R1, R2, R3 and R4 are the same as or different from one another, and are independently selected from the group consisting of —H, —CH3, —C(CH3)3 and a group represented by formula (i) for each of compound molecules. In formula (i), Y is selected from the group consisting of —O—, —CH2— and —C(CH3)2—. The heat-curable composition containing the benzoxazine compound has excellent solubility in solvents, heat resistance and flame retardancy, and therefore can be used for providing a cured product of the composition or a varnish.

Abstract: A thermosetting composition includes 30 to 70% by mass of a compound represented by Formula (1) below and 70 to 30% by mass of a compound represented by Formula (2) below: In Formulae (1) and (2), R1, R2, R3 and R4 may be the same or different from one another and are each selected independently with respect to each molecule of the compounds from the group consisting of —H, —CH3, —C(CH3)3 and a group represented by Formula (i) below: In Formula (i), Y is selected from the group consisting of —O—, —CH2— and —C(CH3)2—. This thermosetting composition including such benzoxazine compounds exhibits excellent solvent solubility, heat resistance and flame retardance. Thus, the composition may be provided as a thermosetting material and a varnish thereof.

Abstract: An object of the invention is to provide a structure of a rear bumper cover capable of improving appearance and rigidity of the rear bumper cover. A rear bumper cover made from a resin disposed in the backward part of the vehicle forms an opening portion at the position of attachment of a tow hook. In the opening portion, a cover attaching member made from a resin which has a member opening hole capable of leaving the tow hook open is disposed with the state of covering whole the outer edge of the opening portion. On the cover attaching member, a hook cover capable of covering whole a member opening hole is detachably attached.

Abstract: An object of the invention is to provide a structure of a rear bumper cover capable of improving appearance and rigidity of the rear bumper cover. A rear bumper cover 1 made from a resin disposed in the backward part of the vehicle 5 forms an opening portion 11 at the position of attachment of a tow hook 4. In the opening portion 11, a cover attaching member 2 made from a resin which has a member opening hole 21 capable of leaving the tow hook 4 open is disposed with the state of covering whole the outer edge of the opening portion 11. On the cover attaching member 2, a hook cover 3 capable of covering whole a member opening hole 21 is detachably attached.

Abstract: A sheet produced by a paper making method comprises electrically conductive fibers whose length is over 2 mm, electrically conductive powder, and resin. Since the sheet has high electrical conductivity and excellent flexural property, it is suitable for use of a fuel cell separator etc.

Abstract: A polycarbonate/polyolefin resin composition which has excellent wear property, mechanical strength and flame retardancy and which is adapted for use as a material for OA equipment, home appliance, automobile components, medical apparatus, and the like is provided. The polycarbonate/polyolefin resin composition contains a polycarbonate resin (A), a polyolefin resin (B), a modified polyolefin resin (C), a compound (D) represented by the formula (d): HOOC—R—NH2, a styrene copolymer resin (E), and a brominated polycarbonate oligomer and said diantimony tetraoxide and/or said diantimony pentaoxide (F) in a particular combination. The production process and an article molded from such resin composition are also provided.

Abstract: There are provided a resin composition having excellent wear properties and high flame retardancy, and a resin molding that results from melt molding of such composition. The resin composition is essentially comprised of: (A) a polycarbonate resin; (B) a modified polyolefin resin; (C) a compound represented by HOOC—R—NH2 where R is an alkylene, alkylidene, oligomethylene, phenylene or naphthylene group having 5 or more carbon atoms, respectively, wherein each of the phenylene and naphthylene groups may have substituent group; and (D) a specific phosphate ester.

Abstract: This invention provides the following resin composition, method for producing the composition, resin slide material, organic solvent resist material and glass fiber reinforced composition obtained therefrom. A polycarbonate/polyolefin based resin composition exhibiting an improved polycarbonate/polyolefin compatibility prepared by melt kneadin (A) a polycarbonate resin; (B) a polyolefin resin; (C) a polyolefin resin that has been modified with at least one functional group selected from the group consisting of epoxy, carboxyl, and an acid anhydride groups; (D) a compound represented by the formula: HOOC--R--NH.sub.2 wherein R represents at least one member selected from the group consisting of an alkene group, an alkylidene group, and an oligomethylene group containing 5 or more carbon atoms, and phenylene group and naphthylene group optionally substituted with an alkyl group; and optionally, (E) a styrene copolymer resin.

Abstract: When producing a graft modified polyolefin by melting and kneading a polyolefin, a radical-polymerizable monomer and a radical-polymerization initiator, the producing efficiency is improved. The grafting reaction is effected by feeding the melted polyolefin containing either one of said radical-polymerizable monomer and the radical-polymerization initiator to the other. When said radical-polymerizable monomer is an unsaturated carboxylic anhydride, said unsaturated carboxylic anhydride as a starting material is preliminarily heated at 50.degree. to 250.degree. C., and then fed to the grafting reaction mentioned above. When the monomer is an unsaturated carboxylic acid or an acid anhydride of such an unsaturated carboxylic acid, an organic peroxide of a formula (I) is used as the radical-polymerization initiator. ##STR1## In this formula (I), two substituting groups connected directly to the benzene ring have an ortho-positional relationship or a meta-positional relationship, R.sub.1, R.sub.2, R.sub.3, R.sub.

Abstract: This invention provides the following resin composition, method for producing the composition, resin slide material, organic solvent resist material and glass fiber reinforced composition obtained therefrom. A polycarbonate/polyolefin based resin composition exhibiting an improved polycarbonate/polyolefin compatibility prepared by melt kneadin (A) a polycarbonate resin; (B) a polyolefin resin; (C) a polyolefin resin that has been modified with at least one functional group selected from the group consisting of epoxy, carboxyl, and an acid anhydride groups; (D) a compound represented by the formula: HOOC--R--NH.sub.2 wherein R represents at lease one member selected from the group consisting of an alkene group, an alkylidene group, and an oligmethylene group containing 5 or more carbon atoms, and phenylene group and naphthylene group optionally substituted with an alkyl group; and optionally, (E) a styrene copolymer resin.

Abstract: Thermoplastic resin compositions comprising polyarylate and polyamide resins as main components, and an epoxy resin of the following formula [1] in a predetermined amount are provided. ##STR1## The thermoplastic resin compositions of the invention have good impact strength along with good heat and solvent resistances and good moldability.

Abstract: Provided herein are an aromatic polyester having superior physical properties which is composed of the following units ##STR1## an aromatic polyester amide formed by introducing a prescribed amount of amide linkage into said aromatic polyester; filament thereof; and a composition formed by adding an inorganic filler or magnetic powder to said polymers.

Abstract: Thermoplastic resin compositions comprising polyarylate and polyamide resins as main components, polyethylene terephthalate and an epoxy resin of the following formula [1] in a predetermined amount are provided. ##STR1##The thermoplastic resin compositions of the invention have good impact strength along with good heat and solvent resistances and good moldability.

Abstract: An improved polyarylate resin is provided, which resin comprises the following units (I) to (IV) ##STR1## the units (I) being contained in an amount of from 3 to 30 mole %, the units (II) being contained in amount of not less than 30 mole %, the units (III) being contained in an amount of not less than 30 mole %, and the units (IV) being contained in an amount of not larger than 25 mole %, each based on the total moles of the units (I) to (IV). The polyarylate resin has good mechanical strength, heat resistance, resistance to color change, transparency, moldability and flame retardancy. A resin composition comprising the polyarylate resin, a polyamide and an epoxy resin is also provided.

Abstract: Thermoplastic resin compositions comprising polyarylate and polyamide resins as main components, polyethylene terephthalate and an epoxy resin of the following formula [1] in a predetermined amount are provided. ##STR1##The thermoplastic resin compositions of the invention have good impact strength along with good heat and solvent resistances and good moldability.