Abstract:
A child-resistant tablet package (10) accommodates low density pharmaceutical tablets. The package includes a blister tray (12) having a plurality of blister depressions (20) which accommodate the low density porous pharmaceutical tablets. The blister tray further includes a frangible tray extent spaced (24) adjacent to each blister depression. The frangible tray extent may be manually puntured through the surface of the blister tray. A planar lid (14) is removably sealed over the blister tray and encloses the tablets within the blister depressions. The blister lid includes frangible cover extents (32) overlying each of the frangible tray extents. The cover extents and the tray extents may be frangibly displaced so as to establish a graspable peel tab to facilitate peelable removal of portions of the cover from the overlying disposition with respect to the blister depressions so as to expose the tablets for dispensing.
Abstract:
An aluminum alloy ingot containing not less than 0.4 % by weight and less than 1.7 % by weight of Si, not less than 0.2 % by weight and less than 1.2 % by weight of Mg, and Al and unavoidable impurities for the remainder is homogenized at a temperature of not lower than 500 DEG C; the resultant product being cooled from a temperature of not lower than 500 DEG C to a temperature in the range of 350-450 DEG C and started to be hot rolled; the hot rolling step being finished at a temperature in the range of 200-300 DEG C; the resultant product being subjected to cold rolling at a reduction ratio of not less than 50 % immediately before it has been solution-treated; the cold rolled product being then solution-treated in which it is retained at a temperature in the range of 500-580 DEG C at a temperature increasing rate of not less than 2 DEG C/s for not more than 10 minutes; the resultant product being subjected to hardening in which it is cooled to a temperature of not higher than 100 DEG C at a cooling rate of not less than 5 DEG C/s. Thus, a method of manufacturing an aluminum alloy plate for molding is provided which has high strength and moldability and an excellent external appearance of a post-molding surface thereof, and which is suitably used as a material for transportation equipment parts, such as an outer plate for automobiles.
Abstract:
A method of producing an AA7000 series aluminum alloy wrought product or plate includes a two step solution heat treating sequence wherein the aluminum plate is subjected to a first solution heat treatment at a first elevated temperature or temperatures for a first period of time, followed by a second solution heat treatment at a lower temperature or temperatures for a second period of time. The two step solution heat treating sequence results in vastly improved exfoliation corrosion resistance in the final aluminum wrought or plate product. An improved process for making aluminum alloy products in the T7751 Temper also is disclosed.
Abstract:
A method of improving the corrosion properties of an aluminum alloy product containing solid solution alloying elements depends on a rapid quench step (see process steps in the figure). This method of improvement includes the step of rapidly quenching the alloy product after it has been heated or hot deformed so as to maintain the alloying elements in solid solution to avoid microsegregation of solid solution alloying elements and minimize preferential sites for corrosion onset.
Abstract:
A peelable seal (40) includes four layers. The first layer includes first and second alternating ribs (37,38). The first ribs comprise a first material, and the second ribs comprise a second material. The first material bonds well with the closure profiles (28,30). The second material bonds well with the third and fourth layers (33,35). The first material does not bond well with the second material. Thus, the bond strength is lower between the first and second ribs and between the third and fourth ribs than between the first and third ribs and the closure profiles and between the second and fourth ribs and the third and fourth layers. In this process, the strength of the peelable seal is controlled during the extrusion process rather than being subjected to the variations in the manufacturing process.
Abstract:
Strength and ductility for aluminum-lithium alloy wrought product in the transverse direction is improved by subjecting these types of alloys to improved T8 temper practice. The wrought product, after solution heat treating and quenching is subjected to a multiple step stretching sequence prior to aging, the total percent reduction for the multiple step stretching sequence ranging between 1 and 20 percent reduction. In the multiple step stretching sequence, each of the stretching steps may have the same or different amounts of percent reduction to achieve the desired total percent reduction. An aluminum-lithium alloy wrought product subjected to the improved T8 temper practice has increased tensile yield stress and percent elongation in its transverse direction to facilitate commercial application of the product in high strength applications.
Abstract:
Free-machining aluminum alloys are disclosed containing effective amounts of tin and indium. The tin and indium additions are especially adapted for use as free-machining constituents in aluminum alloys, such as AA2000 and AA6000 series aluminum alloys. The additions can be used in place of bismuth and lead in currently available free machining alloys. In alloys containing bismuth and tin, the indium can be used to replace the bismuth. A method of producing a free-machining aluminum alloy product also is described.
Abstract:
A process for preparing an ultra-white alumina trihydrate having a G.E. brightness of at least about 98 %. The product is alumina trihydrate that has been rehydrated with coprecipitation, and the crystal phase of the product is primarily gibbsite in thin platelet form having a ratio of thickness to diameter of about 0.2 to about 0.3. The product is prepared by flash activation of a white initial alumina trihydrate, addition of the activated material to a purified sodium aluminate liquor having an alumina to caustic ratio of about 0.5, and rehydrating and precipitating the alumina at ambient temperature under agitation for about 48 hours, followed by washing and drying of the resulting precipitate. The material is especially useful as a filler or coating in papermaking, and it can be substituted for a portion of titanium dioxide pigment in the ratio of 1:1, and can be combined with titanium dioxide as a pigment mixture, either in slurry form or in dry form. The pigment mixture is added to the papermill machine chest to enhance optical properties beyond those achieved by either pigment alone.