Abstract: A resin composition is suitable for molding to a gear and comprises 30 to 98 percent by weight of a resin being capable of the anisotropic phase in the molten state and the melt processing and 2 to 70 percent by weight of fibers such as metal fibers, carbon fibers, glass fibers, inorganic fibers, synthetic fibers and mineral fibers.

Abstract: An electroconductive resin composite is produced by polymerizing at least one monomer a polymer of which is electroconductive in a matrix of a resin which exhibits the anisotropy in the melt phase to form a composite of the obtained polymer and the resin. The resin composite is obtained in the form of film and a moulded article.

Abstract: A laminated film comprises a metallic film and a polymer layer which has been laminated on the metallic film, the polymer being anisotropic in the melt phase.

Abstract: A magnetic disk comprises a substrate of a resin composition comprising a polymer being capable of the anisotropic phase in the molten state and a magnetic layer formed on at least one surface of said substrate. The substrate is a laminate of a plurality, preferably two, of monoaxially oriented sheets, eventually being multiaxially oriented.

Abstract: An optical disc comprises a substrate formed from a polymer being capable of the anisotropic melt phase and being melt-processable, a recording layer having pits and grooves, formed on the substrate, and a metal coating layer, formed on the recording layer.

Abstract: A laminated sheet comprises a first layer of a melt-phase anisotropy exhibiting thermoplastic polymer, having a negative linear expansion coefficient in the direction of the polymer flow and a second layer having a positive linear expansion coefficient in the direction of the polymer flow, both layers having been laminated one on another in the alternative way, further each layer having a thickness such that the negative linear expansion coefficient of said first layer and the positive linear expansion coefficient of the second layer having been offset against each other.

Abstract: A polybutylene terephthalate resin composition comprises polybutylene terephthalate, a sulfonate anionic antistatic agent and an oxidized polyolefin wax. It is improved in the antistatic property and useful as a part for an electric instrument.

Abstract: A thermoplastic resin composition comprises a thermoplastic resin and a spherical, hollow filler having a wall thickness ratio of 2.5 to 10, defined as a ratio of an outer diameter of the filler to a wall thickness of the filler. It is useful for a light-weighed piece.

Abstract: This invention relates to a two-way cooling pipe for cooling a die or mold which is used for die casting or a similar forming process. This pipe is a hollow pipe, the interior of which is divided axially by a baffle which provides a forward channel and a backward channel for the cooling water to pass. Cooling of the die is achieved by feeding cooling water to the inside of the die from the forward channel in the cooling pipe which has been inserted in the die from the back thereof, and then removing the cooling water through the backward channel of the cooling pipe.

Abstract: A polybutylene terephthalate is manufactured by the steps of polycondensating in the liquid phase terephthalic acid or a lower alcohol ester thereof as the acid component and 1,4-butanediol as the diol component to obtain a prepolymer of polybutylene terephthalate, solidifying the prepolymer and further polymerizing the prepolymer in the solid phase to obtain a polybutylene terephthalate of a higher polymerization degree, 0.001 to 5 percent by weight, based on the prepolymer, of a nucleator being added to the polymerization mixture at any time during a period of from the monomer-mixing stage before the starting of the solid phase polymerization, the solid phase polymerization being conducted in the presence of the nucleator uniformly dispersed in the polymerization mixture. The solid polymerization can be treated subsequently to the liquid polymerization and can proceed in a short time.

Abstract: A magnetic composite comprises a magnetic powder and a resin binder of a melt-processable polymer to form the anisotropic melt phase.

Abstract: A thermoplastic resin composition comprises a crystalline thermoplastic resin, a reinforcing fiber, a flaky filler and polycarbonate and is suitable for molding.

Abstract: Polytetramethylene terephthalate is manufactured from terephthalic acid and 1,4-butanediol in two stages, a first stage comprising an esterification reaction employing an esterification catalyst and a second stage comprising a condensation-polymerization reaction. The esterification reaction is carried out in the presence of at least one acid amide compound, preferably selected from urea, a derivative thereof, mono- or poly-carboxylic acid amides having 1 to 9 carbon atoms, polyamides, phosphoric acid amides and sulfonic acid amides, whereby the production of tetrahydrofuran as a by-product is appreciably inhibited and the time required for the esterification reaction is reduced.

Abstract: A fluctuating drive system comprises: random generating means for generating a randomly varying physical quantity; control means for controlling the randomly varying physical quantity; amplifying means for amplifying the controlled physical quantity; and driving means for driving an energy generating means in accordance with the amplified physical quantity, thereby to generate the randomly varying energy from the energy generating means. With this system, the environment or stimulus is positively fluctuated at random with l/f characteristics or the like.

Abstract: A thermoplastic polyester composition comprising a thermoplastic polyester resin containing a moiety derived from an aromatic dibasic acid, as a predominant acid moiety and a hydantoin compound in an amount sufficient to substantially retard evolution of aromatic dibasic acid vapor during melt processing of the composition. A method of preventing mold deposits during a molding operation of a thermoplastic polyester resin containing an aromatic dibasic acid as a predominant acid moiety comprising the addition of 0.01 to 10 parts by weight of a hydantoin compound per 100 parts by weight of the polyester resin. The aromatic dibasic acid is preferably terephthalic acid and the thermoplastic polyester resin is preferably selected from the group of polyethylene terephthalate, polytrimethylene terephthalate, polytetramethylene terephthalate and blends thereof.

Abstract: A polyester composition comprises polyethylene terephthalate and 0.1 to 15 wt. %, based on the polyethylene terephthalate, of 2-methyl-1,3-propylene glycol dibenzoate. It may further contain up to 40 wt. % of filler and up to 60 wt. % of a reinforcing fiber.

Abstract: The present invention is directed to an apparatus and method for collecting the discharged grass clippings of a lawn mower. The lawn mower includes a discharge opening at the lateral side or the rear side of the lawn mower. Grass clippings are directed through the discharge opening to a conveyor member, thereafter the clippings are deposited in a catcher. The present invention does not require a high speed air flow to discharge the grass clippings. Further, since the grass clippings are discharged by a conveyor member into the top opening of a catcher the level of grass clippings positioned in the catcher may readily be observed so that it is very easy to determine when the catcher should be emptied.

Abstract: Steroidal alcohols are produced by cultivating a microorganism belonging to the genus Mycobacterium and capable of producing 20 .alpha.-hydroxymethylpregna-1,4-dien-3-one or 20 .alpha.

Abstract: A cord winding apparatus for use in tautly winding and unwinding an electrical cord between an electro-motive apparatus and a power source. The cord winding apparatus includes a winding drum rotatably mounted and spring-connected to a drum shaft. An electrical power cord is folded into two pieces and attached to the drum such that the folded cord pieces wind from the same direction around the drum. A fixed arm is rigidly attached to the shaft to prevent shaft rotational movement. Front and rear cord guides are attached to the fixed arm to guide the cord pieces during winding and unwinding thereof around the drum. A pair of cup-like wheels are rotatably mounted on the shaft sandwiching the winding drum. The wheels carry the cord winding apparatus so that the winding drum can freely rotate about the shaft.

Abstract: Disclosed is a lawn mower having several pairs of rotatable blades attached to a rotatable frame. The rotatable frame is motor driven, and centrifugal forces cause a frictional engagement between blade driving means and a portion of the frame so that each pair of the blades assume a planetary rotary motion, yet are capable of movement away from obstacles. Each pair of blades consists of two overlapping circular blades that are in frictional engagement with each other and rotate in opposite directions to effect a cutting action.