Abstract: Asphalt compositions are provided having improved adhesion to aggregate, comprising an alkyl oxyalkylene amine and, optionally, an alkanolamine.

Abstract: A process for the preparation of a cellulose pulp by mechanically freeing wood fibers in a grinder to form a fibrous pulp and bleaching the fibrous pulp with a peroxide-containing bleaching agent, as the only bleaching agent, in a peroxide bleaching stage, the mechanical freeing of the fibers being carried out in the presence of a spent liquor from the peroxide bleaching stage have a pH of 7 to 9.

Abstract: A method for improving heat economy in the batchwise digestion of lignocellulosic material especially when using a batch digester with a digestion or cooking liquor in which the digestion or cooking chemicals are dissolved, such as in sulphate, sulphite, bisulphite, oxygen, peroxide and ammonium hydroxide digestion processes, and also in the manufacture of high yield semichemical pulps.A superatmospheric gas pressure is applied above the level of the liquor in a batch digester; the level of the digester liquor is determined after the liquor has been absorbed by a batch lignocellulosic material; the level of free digestion liquor is then adjusted to that level providing an amount including the absorbed liquor to digest the lignocellulosic material; and then the material is digested under the superatmospheric pressure to form cellulose pulp.

Abstract: A process is provided for freeing cellulose fibers from lignocellulosic material, which comprises subjecting particulate lignocellulosic material to irradiation at a frequency within the range from about 10 to about 300,000 MHz (megahertz), at an intensity of at least 0.5 megajoule per kg. of material, applied in a short pulse having a duration of at most 0.1 second, at such an intensity the water present in the lignocellulosic material is rapidly and even explosively vaporized, and disrupts or destroys the natural structure of the lignocellulosic material, thereby freeing the fibers substantially without deleterious effect upon the length or strength of the fibers.

Abstract: A planting machine is provided having a pneumatic depth indicator on the digging tool and comprising at least one gas conduit for conveying a gas under superatmospheric pressure from one end to the other end thereof, the one end being connected to a gas supply source, and the other end being open to atmosphere and spaced a distance from the digging tool end equal to the depth of the hole dug by the tool for a plant, the other end being so arranged that the opening to atmosphere is plunged into blocking contact to the earth when the predetermined hole depth is reached, thereby halting flow of gas from the conduit.

Abstract: An absorbent, disposable sanitary device for insertion in a body cavity, and especially intended for insertion into the vagina to absorb menstrual fluid therein, comprising a resilient rotund absorbent fibrous layer which retains its resiliency when wet and in which fibers are bonded together, supported on a core of stiff material, and means attached to the core to facilitate removal of the device from the vagina or other body cavity.