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 novel resin composition improved in moldability and impact resistance, comprising (A) a polyphenylene oxide having a molecular weight of 5,000 or higher, (B) an aromatic hydrocarbon-formaldehyde resin or a modified aromatic hydrocarbon-formaldehyde resin, and, if necessary, (C) a rubbery polymer, the weight ratio of the resin (A) to the resin (B) being from 10:90 to 99:1 and the amount of the rubbery polymer (C) being 3 to 40 parts by weight per 100 parts by weight of the sum of the resins (A) and (B). This resin composition has excellent mechanical and electrical properties of the polyphenylene oxide together with an improved moldability, impact resistance, and adhesiveness.
摘要:
A novel resin composition improved in moldability and impact resistance, comprising (A) a polyphenylene oxide having a molecular weight of 5,000 or higher, (B) an aromatic hydrocarbon-formaldehyde resin or a modified aromatic hydrocarbon-formaldehyde resin, and, if necessary, (C) a rubbery polymer, the weight ratio of the resin (A) to the resin (B) being from 10:90 to 99:1 and the amount of the rubbery polymer (C) being 3 to 40 parts by weight per 100 parts by weight of the sum of the resins (A) and (B). This resin composition has excellent mechanical and electrical properties of the polyphenylene oxide together with an improved moldability, impact resistance, and adhesiveness.
摘要:
A thermoplastic blend composition having especially superior impact strength and fatigue resistance comprising 15 ro 80% by weight of a polyphenylene oxide, 16 to 75% by weight of a rubber-modified polystyrene, 2 to 15% by weight of an aromatic polycarbonate and 2 to 15% by weight of a high styrene rubber, the sum total of the proportions of these ingredients being 100% by weight.
摘要:
A process for the production of a composite ceramic printed wiring board, comprising (1) making a penetration hole having a diameter of 0.1 to 0.8 mm in a ceramic board having an open porosity of at least 5% and a thickness of 0.1 to 10 mm, (2) fixing metal (M) to the penetration hole such that the metal (M) penetrates through the penetration hole, (3) impregnating a heat-resistant resin precursor (R) under vacuum, polymerizing the heat-resistant resin precursor (R) and polishing both surfaces of the resultant board to produce a resin composite ceramic substrate (MRA) having a conductive portion for conduction between both surfaces in a predetermined portion, and (4) forming printed wiring networks on one or both surfaces of the resin composite ceramic substrate (MRA).
摘要:
A base board for a printed circuit board panel which permits easy inspection of a printed circuit by means of a fluorescence-applied circuit pattern inspection machine used for the inspection of printed circuit patterns and which is not altered in the properties as a printed circuit board, the base board having an insulating layer containing 5.0 to 0.00001% by weight of a compound of any one of the formulae (1), (2) and (3), ##STR1##
摘要:
A base board for a printed circuit board having a printed circuit formed from a copper foil on an insulating layer, the insulating layer containing a compound of the formula (1) or a compound of the formula (2). ##STR1##
摘要:
In a regenerative gas turbine cycle in which heat recovery is carried out by multi-phase and multi-component mixture of compressed air/liquid phase water/steam (hereinafter referred to as MPC mixture), said mixture being obtained by injection of liquid phase water (hereinafter referred to simply as water) into a part of or the whole of compressed gas using air or air based gas (hereinafter referred to as air) as a combustion supporting/working medium gas; the improvement comprising(a) intercooling of said compressor, and/or(b) precooling of the compressed air for producing the MPC mixtureby a part of the MPC mixture.
摘要:
A regenerative gas turbine cycle wherein heat recovery is carried out by a mixture of air/steam which is obtained by contact between water and compressed air, the compressed air being compressed by a compressor for compressing gas using air or air based gas as a combustion supporting/working medium gas. The cycle includes the improvement whereby mixture of air/steam and liquid phase cooled water is obtained through contact between the compressed air and heated water which is used as heat recovering medium; the cooled water being used as heat recovering medium not only for heat recovery of turbine exhaust gas but also, for(a) intercooling of the compressor, and/or(b) precooling of compressed air for the contact operation.Water corresponding to the amount of water which contacts the compressed air and is lost by evaporation is added to the liquid phase water for contact or heat recovery as it is or after use as a heat recovering medium.