摘要:
Unsaturated polyester compositions which are quickly curable and from which molded products with superior surface quality can be obtained are characterized as being composed of an unsaturated polyester, an olefinic unsaturated monomer, an aromatic vinyl-conjugated diene block copolymer or a hydrogenated aromatic vinyl-conjugated diene block copolymer, a mixture of t-butylperoxy benzoate, t-butylperoxy octoate and 1,1-bis(t-butylperoxy) 3,3,5-trimethyl cyclohexane, and at least one selected from organic compounds of cobalt, copper and manganese.
摘要:
A quickly curable unsaturated polyester composition with high surface quality contains an unsaturated polyester, a vinyl monomer, either an alkane polyol polyacrylate or an alkane polyol polymethylacrylate, a thermoplastic resin, and one or more curing catalysts selected from t-butylperoxy benzoate, t-butylperoxy octoate and 2,5-dimethyl-2,5-di(benzoilperoxy) hexane. Molding compounds are obtained by impregnating glass fibers with such composition and molded products obtained by curing such molding material have improved surface smoothness.
摘要:
A curable unsaturated polyester resin composition contains graft copolymers each having 10-60 weight % of a first constituent given by ##STR1## 38-89.7 weight % of a second constituent given by ##STR2## and 0.3-2 weight % of a third constituent which is a vinyl monomer unit having carboxylic acid or carboxylic anhydride groups, unsaturated polyester, vinyl monomer, a filler, a curing catalyst, and reinforcing fibers, where either of R.sup.1 and R.sup.2 is H, the other being either H or CH.sub.3, R.sub.3 is ethylene group or propylene group, R.sup.4 is hydrocarbon group with 1-18 carbton atoms, R.sup.5 is alkyl group with 1-4 carbon atoms, R.sup.6 is alkyl group with 1-3 carbon atoms, m is 6-90 and n is 1-5.
摘要:
Quickly curable unsaturated polyester composition with improved surface characteristics and stability in storage contains 20-40 weight parts of unsaturated polyester, 20-60 weight parts of vinyl monomer, 0.01-1.0 weight parts of BHT (ditertiary butyl hydroxy toluene), and 10-40 weight parts of thermoplastic resin such that the total is 100 weight parts. In addition, 0.001-0.1 weight parts of compound with effect of inhibiting polymerization at temperatures over 100.degree. C. are contained against the total of 100 weight parts. Molding materials are obtained by impregnating glass fibers with such compositions and products are obtained by curing such molding materials.
摘要:
Resin compositions containing (a) unsaturated polyester, (b) polymerizable monomer, (c) thermoplastic resin, (d) a polymerization initiator, and (e) hollow glass microspheres with a true density of 0.5 to 1.3 g/cm.sup.3 and an elution alkalinity of 0.05 meq/g or less; molding materials obtained by impregnating glass fibers with such resin compositions; and molded products obtained by curing such molding materials.The molding materials have a superior workability and are useful for the production of parts to be coated, such as automotive external body panels. The molded products are light in weight and are highly resistant to water. Defective adhesion of coating or blisters does not occur.
摘要:
Provided is a fuel tank producing apparatus capable of uniformly heating a tank container in a short period of time. The fuel tank producing apparatus includes a heat curing furnace for heating the tank container and a hot air generator for generating hot air. The heat curing furnace is internally provided with a nozzle for blowing the hot air onto the surface of the tank container, and externally provided with a rotating portion for rotating the tank container about the central axis thereof. The nozzle is located at a position displaced to the left relative to the vertical direction to the central axis of the tank container as viewed from the direction of the central axis of the tank container. The rotating portion is configured to rotate the tank container in the reverse direction of a direction in which the hot air is blown from the nozzle.
摘要:
Provided is a fuel tank producing apparatus capable of uniformly heating a tank container in a short period of time. The fuel tank producing apparatus includes a heat curing furnace for heating the tank container and a hot air generator for generating hot air. The heat curing furnace is internally provided with a nozzle for blowing the hot air onto the surface of the tank container, and externally provided with a rotating portion for rotating the tank container about the central axis thereof. The nozzle is located at a position displaced to the left relative to the vertical direction to the central axis of the tank container as viewed from the direction of the central axis of the tank container. The rotating portion is configured to rotate the tank container in the reverse direction of a direction in which the hot air is blown from the nozzle.
摘要:
A filament winding device that optimizes the interval between adjacent fiber bundle guides includes a plurality of helical heads on which fiber bundle guides moving in the direction that is roughly perpendicular to the rotating axis of a liner are radially disposed; and winds a fiber bundle onto the outer circumference surface of the liner by passing the helical heads while rotating the liner. An interval adjusting means adjusts the interval between a virtual plane (Pf) which intersects with the guiding opening of a fiber bundle guide disposed on one of the helical heads so as to be orthogonal to the liner rotating axis and a virtual plane (Pw) which intersects with the guiding opening of a fiber bundle guide disposed on the other helical head so as to be orthogonal to the liner rotating axis.
摘要:
A filament winding apparatus prevents a fiber bundle supplied to a liner from interfering with other fiber bundles and fiber supplying guides. First and second guide units include a plurality of fiber supplying guides arranged radially and extending and contracting in a direction approximately perpendicular to a liner central axis. When a fiber bundle supplied from a first supplying guide of the first guide unit crosses between a second supplying guide of the second guide unit and the liner, the distance from the second supplying guide to the liner central axis is made larger than the distance from the first supplying guide to the liner central axis, and in the reverse case, the distance from the first supplying guide to the liner central axis is made larger than the distance from the second supplying guide to the liner central axis.
摘要:
A filament winding apparatus for winding a fiber bundle on the surface of a liner is configured so that the end position of a fiber layer of the dome section of the liner is easily corrected. A control section stores a series of operations for winding the fiber bundle on the liner as winding data including steps, controls a fundamental operation which winds the fiber bundle on the basis of the winding data, and also controls a correction operation which corrects the end position of the fiber layer on the basis of an actual value and a design value when forming a fiber layer by winding the fiber bundle on the dome section of the liner.