Abstract: The invention relates to a process for forming a cement composition which comprises mixing hydratable cement particles, water and an oil-in-water suspension wherein the oil droplets of the suspension are surrounded by colloidal particles having a zeta potential of between about +18 and -18 millivolts, and allowing the mixture to cure.
Abstract: Stable suspensions of oil and water are provided by surrounding the droplets of the suspended phase by colloidal particles to form an aggregate particle having a zeta potential between about +18 and -18 millivolts.A process for forming such stable suspensions of water and oil by adding to one of the liquid phases an anionic agent and a cationic agent to produce colloidal particles having a zeta potential between about +18 and -18 millivolts, then adding the other liquid phase to form the suspension.
Abstract: A composite useful as a ski sole comprising polyethylene particles in a polyethylene film, the former having a greater hardness or higher melt index than the latter, which is capable of renewably forming fibrils extending from a surface thereof under the abrasion characteristic of skiing conditions. The particles may have been treated with a material which is incompatible with or reduces the adhesion to the film-forming polyethylene.
Abstract: Process of freezing organic particulate suspensions containing freeze-sensitive inorganic colloidal sols to form uniform porous substrates and of freezing biological material while in contact with a hydrophobic liquid.
Abstract: Graphite compositions in which the majority of the flake-like particles have at least two substantially hydrophobic surfaces or areas and at least one substantially hydrophilic area of sufficient hydrophilicity to retain the water dispersibility of the graphite compositions and which are used as coatings on hydrophobic surfaces, such as polyethylene, ski soles, sound and video tapes, telephone cables and so forth.
Abstract: Aqueous particulate slurries or suspensions containing a small amount of a freeze sensitive ceramic sol are frozen by supercooling the aqueous slurry prior to freezing. The process includes the use of lithium ions in the slurries with or without supercooling.
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