摘要:
A regularly-shaped aluminosilicate useful as a blending agent for resins and coating materials, featuring low hygroscopic property, excellent pigment property, being capable of being easily dispersed in resins, and making it easy to carry out the blending operation. The regularly-shaped aluminosilicate comprises regularly-shaped sodium aluminosilicate particles obtained by firing a synthetic A or Pc zeolite, and has a nepheline or carnegieite crystalline structure, and further has an average particle diameter of from 0.5 to 30 .mu.m, an apparent specific gravity of from 0.3 to 0.8 g/cm.sup.3, an amount of oil absorption of not larger than 50 ml/100 g, a refractive index of from 1.46 to 1.56, and an amount of moisture absorption of smaller than 1% at a relative humidity of 90%.
摘要翻译:可用作树脂和涂料的混合剂的规则形状的硅铝酸盐,具有低吸湿性,优异的颜料性能,能够容易地分散在树脂中,并且使得容易进行混合操作。 规则形状的硅铝酸盐包括通过焙烧合成的A或Pc沸石获得的规则形状的硅铝酸钠颗粒,并且具有霞石或卡底基石结晶结构,并且还具有0.5至30μm的平均粒径,表观比重 为0.3〜0.8g / cm 3,在相对湿度90°下吸油量不大于50ml / 100g,折射率为1.46〜1.56,吸湿量小于1% %。
摘要:
A single-use camera which is loaded with a film cartridge, having a light-shielding cover on a film gate, when the single-use camera is assembled. The camera includes: the film cartridge for accommodating a photographic film; a film-winding knob, capable of rotating, for winding the photographic film; a film detection member for detecting the photographic film at a position outside the film cartridge in the camera; and a mechanism for moving the light-shielding cover to a closed position where the light-shielding cover closes the film gate when the film detection member detects absence of the photographic film at the position.
摘要:
A method for loading an unexposed photographic film in a lens-fitted photographic film unit, the method including the steps of: providing a cartridge storing the unexposed film therein, and a film supplying spool having a film winding part around which the film is wound, a portion defining a suction hole for film-attraction formed on the film winding part, and a portion defining a hollow hole for air-suction formed concentrically with the supplying spool; thrusting out the film from the cartridge; sucking air from the hollow hole so that the film thrust out from the cartridge is attracted to the suction hole; winding up the film by a predetermined length to the supplying spool while attracting the film to the suction hole; and loading the cartridge and the supplying spool in a main body of the lens-fitted photographic film unit.