摘要:
According to one embodiment, a system is provided, which provides moving picture data representing a road-traffic state. This system synthesizes the moving picture data with additional data such as advertisement data, generating output data. The system distributes the output data to the facilities built along the road and the vehicles running on the road.
摘要:
A terminal modified imide oligomer fusible at a relatively low temperature and usable for prepregs free from solvent or as a hot melt-type binder, includes (A) an unsaturated imide compound prepared by a reaction of a substituted nadic anhydride with an aromatic diamine and provided with terminal unsaturated hydrocarbon groups and imide groups located in inside portions of the compound molecule and (B) a terminal modified imide oligomer prepared by a reaction of (a) a carboxylic acid component comprising (i) 2,3,3',4'-biphenyltetracarboxylic anhydride and (ii) a substituted or unsubstituted nadic anhydride, with (b) a diamine component comprising at least one aromatic diamine, provided with terminal unsaturated hydrocarbon groups and imide groups located in inside portions of the oligomer molecule and having a logarithmic viscosity number of 0.03 to 1.0, determined in a concentration of 0.5 g/100 ml in N-methyl-2-phyrrolidone at 30.degree. C.
摘要:
A flame-retarded polyamide composition comprising a polyamide and a triazine addition compound consisting essentially of one mole of a triazine derivative having the formula (I): ##STR1## in which R is divalent hydrocarbon residue containing 1-12 carbon atoms, and one or two moles of one or two compounds selected from the group consisting of cyanuric acid and isocyanuric acid.
摘要:
A fine fiber-reinforced elastomer composition (A) having a high elastic modulus, mechanical strength and creep resistance includes (a) 100 parts by weight of elastic component having a glass-transition temperature of 0.degree. C. or less, (b) 30 to 500 parts by weight of a polyolefin component and (c) 10 to 500 parts by weight of a polyamide component dispersed in the fine fiber form in the matrix consisting of the components (a) and (b), these components (a), (b) and (c) being chemically bonded to each other through a binding agent (d), for example, a silane coupling agent, and is useful for producing an elastic material having a high elastic modulus, an excellent fatigue resistance and a high isotropy, by admixing an additional elastic component (B) to the elastomer composition (A).
摘要:
The terminal-modified imide oligomer composition capable of being cured within a short time and of being converted to a shaped, cured resin article having a high mechanical strength, heat resistance and elastic modulus, comprises a rigid, high molecular weight aromatic polyimide (I) produced by polymerizing and imidizing a tetracarboxylic acid component comprising at least one biphenyltetracarboxylic acid compound with an amine component comprising at least one aromatic diamine compound (a) having at least one cyclic structure and two amino groups directly attached to the cyclic structure; a flexible imide oligomer (II) produced by polymerizing and imidizing the tetracarboxylic acid component, with a diamine component comprising at least one aromatic diamine compound (b) having at least two cyclic structures and two amino groups attached directly or through a divalent bonding member to the cyclic structures and a monoamine component comprising at least one monoamine compound (c) having an unsaturated hydrocarbon group; a reactive monomer (III) having a unsaturated hydrocarbon group; and optionally, a rigid, terminal-modified imide oligomer (IV) produced by polymerizing and imidizing the tetracaboxylic acid component with the diamine component (a) and the monoamine component (c), and is usable as a heat resistant bonding material, matrix resin of composite material and resin composition for shaped articles, and thus useful for producing aircraft and machines or devices for the space industry.
摘要:
A triazine addition compound consisting essentially of one mole of a triazine derivative having the formula (I): ##STR1## in which R is a divalent hydrocarbon residue containing 1-12 carbon atoms, and one or two moles of at least one compound selected from the group consisting of cyanuric acid and isocyanuric acid.Processes of the preparation of the addition compound and a flame-retarded polyamide composition are also disclosed.
摘要:
Disclosed is an interleaf-containing, fiber-reinforced epoxy resin prepreg, which comprises a fiber-reinforced epoxy resin matrix and an interleaf composed of a polyimide film subjected to a corona discharge treatment and/or a matting treatment.This prepreg is suitable for the production of a composite material which is excellent in mechanical strength characteristics such as interlaminar shear strength and flexural breaking strength and having a high toughness.
摘要:
A terminal-modified imide oligomer composition, comprising(A) 100 parts by weight of a terminal-modified imide oligomer obtained by a reaction in a solvent of a biphenyltetracarboxylic acid compound with an aromatic diamine compound and a monoamine compound containing a carbon-carbon triple bond, and having an unsaturated terminal group at the terminal of the oligomer and an imide bond in the oligomer, and having a logarithmic viscosity number at 30.degree. C., as determined at a concentration of 0.5 g/100 ml of N-methyl-2-pyrrolidone as a solvent, of from 0.1 to 1 and;(B) 5 to 180 parts by weight of an unsaturated imide compound obtained by a reaction in a solvent of a substituent-containing nadic anhydride with a monoamine compound having a carbon-carbon triple bond in an equimolar ratio, and having an unsaturated terminal group at the terminal thereof and an imide bond therein.
摘要:
A composition of terminal-modified imide oligomers is disclosed. The composition comprises a flexible terminal-modified imide oligomer (A) and a rigid terminal-modified imide oligomer (B). The flexible terminal-modified imide oligomer (A) is selected from specific oligomers (I) and (II). The rigid terminal-modified imide oligomer (B) is selected from specific oligomers (III) and (IV). The oligomer (I) is formed from biphenyltetracarboxylic acid or its derivative, an aromatic diamine compound (a) and an unsaturated monoamine compound or an unsaturated carboxylic acid or its derivative. The oligomer (II) is formed from biphenyltetracarboxylic acid or its derivative and an unsaturated monoamine compound. The oligomer (III) is formed from biphenyltetracarboxylic acid or its derivative, an aromatic diamine compound (b) and an unsaturated monoamine compound or an unsaturated carboxylic acid or its derivative. The oligomer (IV) is formed from pyromellitic acid or its derivative, an aromatic diamine compound (c) and an unsaturated monoamine compound or an unsaturated carboxylic acid or its derivative. The aromatic diamine compound (a) has two or more aromatic rings which are combined with each other directly or by a divalent group consisting of one, two or three atoms. The aromatic diamine compound (b) has only one aromatic ring or condensed ring. The aromatic diamine compound (c) may have two or more aromatic rings as is defined in the compound (a), or may have only one aromatic ring or condensed ring as is defined in the compound (b).
摘要:
A terminal-modified aromatic imide oligomer composition having an improved curing performance and useful for cured polyimide articles having excellent mechanical properties and heat-resistance, comprising 100 parts by weight of a terminal-modified aromatic imide oligomer consisting of a reaction product of a biphenyltetracarboxylic dianhydride with an aromatic diamine and an acetylenically unsaturated monoamine compound, having acetylenically unsaturated terminal groups and exhibiting a logarithmic viscosity number of 0.1 to 1.0 at 30.degree. C.; and 1 to 20 parts by weight of an unsaturated imide compound consisting of a reaction product of a biphenyltetracarboxylic dianhydride with an acetylenically unsaturated monoamine compound.