摘要:
[Problem] In particular, to provide a sealant film that can maintain seal strength and also has a high piercing strength and can decrease the occurrence of pinholes even when used for a long period of time in a high-temperature environment. [Solution] The stretched polyester-based film has a melting point of 155°C to 210°C and a density of 1.320 to 1.380.
摘要:
Abstract: Problem: Provided is a sealing device which has reduced wear of a metallic member in sliding portions having electric-resistance welded carbon steel and a fiber reinforced resin member. Means for resolution: A sealing device having a mechanism in which a metallic member and a resin member relatively slide, wherein the metallic member is formed from electric-resistance welded carbon steel, and the resin member is formed from a carbon-fiber reinforced synthetic resin.
摘要:
In one aspect, a self-lubricating component is provided for a pharmaceutical packaging assembly. The self-lubricating component comprises a polymer composition and an effective amount of a lubricating additive such as, for example, boron nitride. In another aspect, a pharmaceutical packaging assembly may be provided having a surface thereof coated with a lubricating composition comprising boron nitride. The pharmaceutical packaging composition may be, for example, a pre-filled syringe comprising a body (barrel) and a plunger assembly.
摘要:
Disclosed is a sliding contact surface-forming material (12) improved in the friction-proof and wear-proof characteristics under dry friction conditions such as in the open air, while keeping the low swelling, friction-proof, and wear-proof characteristics under moist atmosphere typically under water unchanged, wherein the sliding contact surface-forming material has a reinforcing base impregnated with a resol-type phenolic resin having polytetrafluoroethylene resin dispersed therein, the reinforcing base being composed of a woven fabric formed by using, respectively as the warp and the weft, a ply yarn which is formed by paralleling at least two strands of a single twist yarn spun from fluorine-containing resin fiber and a single twist yarn spun from polyphenylene sulfide fiber, and by twisting them in the direction opposite to the direction in which the single twist yarns were spun; and further disclosed is a multi-layered sliding contact component having the overall shape of a flat plate or a circular cylinder, and having the above-described sliding contact surface-forming material so as to configure at least the sliding-contact surface thereof.
摘要:
To provide a material for sliding components, which is excellent in low warping property, high limiting PV value, low dynamic friction coefficient and wear resistance. This material is suitably used particularly for components such as gears, pulleys, cams and bearings of automobiles, and machines, and cable housing for supporting a cable (e.g., feed cable, signal cable, optical cable). The material for sliding components comprises a thermoplastic resin composition containing (A) a thermoplastic resin and (B) a glass fiber having a noncircular cross-section with the ratio of the long diameter to the short diameter in the cross-section perpendicular to the length direction being from 1.2 to 10. In the material for sliding components, based on the entire thermoplastic resin composition, the thermoplastic resin (A) accounts for 90 to 30 wt% and the glass fiber (B) having a noncircular cross-section with the ratio of the long diameter to the short diameter in the cross-section perpendicular to the length direction being from 1.2 to 10 accounts for 10 to 70 wt%.
摘要:
The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting or annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric composition is wear-resistant and may be fabricated into an in vivo implant.