摘要:
An adhesive composition comprising a low molecular weight fluorine-containing elastomer and fibrillated polytetrafluoroethylene, which is excellent in chemical resistance and weather resistance.
摘要:
A process for producing a readily crosslinkable liquid, fluorine-containing polymer having a narrow range of molecular weight distribution and containing iodine in the molecule in an amount of 1 to 30% by weight based on the weight of the polymer, which comprises polymerizing vinylidene fluoride and at least one other fluoroolefin in the presence of a radical-producing source and an iodinated compound of the formula: Rf/I.sub.x wherein Rf is a saturated perfluorocarbon group, a saturated perfluorochlorocarbon group or a saturated fluorochlorohydrocarbon group and x is an integer of not less than 1 corresponding to the bonding valency of Rf while maintaining the proportion of the mole number of the monomeric components (M) to the mole number of the iodinated compound (I) in a range between 10 and 1,200.
摘要:
A vapor growth method of forming deposition film on a plurality of substrates disposed within a cylindrical reaction vessel by causing flow of reaction gas under a reduced pressure through the reaction vessel, in which the treated surfaces of substrates are inclined to the upstream side of the reaction gas flow with respect to the axis of the reaction vessel and the individual substrates but the most upstream side one are each shifted in position with respect to the preceding one in a direction perpendicular to the axis of the reaction vessel.
摘要:
A device for feeding plate materials wherein plate materials in a magazine are guided toward its outlet and urged in the direction perpendicular to their surfaces by a reciprocating member disposed at the outlet of the magazine in such a manner that it can be moved back and forth to receive the plate members from the outlet of the magazine and carry them one by one on its support surface to a predetermined position. A kicker is retractably fitted to the reciprocating member through a spring so that, when projected from the support surface of the reciprocating member, the kicker engages with the rear edge of the plate material on the support surface as it advances. A rear engagement projection protrudes inwardly from the rear wall of the magazine outlet so that it opposes and engages the outer rear surface of the outermost one of the plate materials contained in the magazine. A front engagement projection protrudes from the front wall of the magazine outlet toward the support surface of the reciprocating member so that it opposes the front edge of the outermost one of the plate materials contained in the magazine. A claw projects from the front end of the kicker so that it catches the rear edge of the plate material pressed against the support surface of the reciprocating member.
摘要:
A vibratory power take-off apparatus for a tractor including a vibration producing unit detachably mountable on the frame of the tractor. The unit comprises a rotary transmitting shaft detachably fittable to a PTO shaft on the tractor frame and having a connecting portion eccentric with the axis of the PTO shaft, a holding case supporting the rotary transmitting shaft rotatably relative thereto, a mounting cylinder fitting around the case and having supporting portions connectable to the tractor frame, intermediate vibration transmitting means supported by the cylinder pivotally movably up and down, means for operatively coupling the connecting portion of the shaft to the transmitting means, and intermediate vibration delivering means having one end pivoted to the transmitting means and the other end pivotally connectable to a working implement connected to the tractor frame.