Abstract: High molecular weight, thermoplastic xylene-formaldehyde polymers are reinforced by inclusion therein of certain fibers and other materials such as carbon fibers, cotton flock, wood flour, granulated cork and glass fibers.

Abstract: A novel, durable thermosetting acrylic automotive finish and method for manufacturing same is described which is manufactured from a predispersed, substantially dry composition. The resultant thermosetting acrylic finish has a higher pigment loading at a sprayable viscosity, thereby reducing the number of applications necessary to produce an acceptable automotive finish. In tests conducted by applicants, the described thermosetting acrylic automotive finish exhibits acceptable durability when exposed to solar radiation for extended periods of time.

Abstract: An asbestos-free sealant composition comprises cotton fiber, amorphous polypropylene and butyl rubber incorporated into a base stock comprising an inorganic filler and a suitable binder.

Abstract: There is provided a flame-retarded non-woven material which contains a mixture of flame retardant and vinyl chloride latex, wherein said flame retardant is selected from the group consisting of ##STR1## wherein a and b are integers independently selected from the group consisting of 1, 2, 3, 4 and 5, a plus b is from about 6 to about 10, c is an integer of from 1 to 4, and alkylene is a straight chain carbon group having from one to six carbon atoms; and wherein more than 50 percent (by weight) of said flame retardant consists of particles with a diameter of from about 2 to about 25 microns.

Abstract: A method for the recovery of oil from an oil-containing subterranean formation by waterflooding employing as an injection medium an aqueous solution of a viscosifier comprising the water-soluble reaction product of an organic polyisocyanate and the addition product of an alkylene oxide and linear, non-ionic polysaccharide, said addition product having a molecular weight of at least about 100,000. According to a preferred form of the invention, a polyisocyanate cross-linked hydroxyethyl cellulose is utilized as a viscosifier to decrease the mobility ratio between the injected water and oil, thereby improving the efficiency of the waterflood. The novel viscosifiers which comprise one form of the invention are characterized by an improved resistance to the effect of divalent metal ions present in the formation as well as a thermal stability which is superior to that of the viscosifiers currently used in waterflooding operations.

Abstract: The admixing of highly absorbent starch-containing polymeric compositions with higher fatty alcohols containing 12 carbon atoms per molecule to 24 carbon atoms per molecule, thereby reducing and/or inhibiting the evaporation of fluid from the highly absorbent starch-containing polymeric compositions.

Abstract: In one embodiment this invention provides a novel fluid composition which comprises an aqueous medium which is thickened with a synergistic viscosity mixture of hydroxypropylcellulose and poly(maleic anhydride/alkene-1).A present invention thickened aqueous medium is applicable as a vehicle for explosive slurries, printing pastes, paint formulations, and the like. A high viscosity aqueous medium of this invention is uniquely adapted for use as a hydraulic fluid in well-drilling operations and in secondary oil and gas recovery from subterranean formations.

Abstract: Composite products formed from at least one piece of wood and a resinated hydraulic cement and the method for their preparation are described. The predominantly mechanical bond between wood and hydraulic cement achieved by the prior art is significantly improved because of the presence of a thermoset resin in the cement such that adhesion occurs at the wood-cement interfaces by specific action of the resin, and a bond of greater integrity results. The cement and the resin function synergistically to consummate a bond with the wood wherein the resin performs the adhesion action and the cement performs a reactive filler or bulking action. The resulting composite products are stronger, more durable and can be made at lower densities than prior art products.

Abstract: An amino-resin composition, in particular urea formaldehyde and/or melamine formaldehyde, in the form of fibres, having incorporated therein at least one additional compound which contains at least one aldehyde or ketone group and at least one hydroxyl group bonded to a carbon atom.

Abstract: Non-blocking coatings are disclosed, which coatings comprise an acrylate ester emulsion polymer prepared by polymerization in the presence of a degraded starch which, in a 10 percent solution in 1 N NaOH, has a viscosity not greater than 15 mPa . s at a velocity gradient D=532.1 s.sup.-1.

Abstract: In one embodiment this invention provides a fluid composition which comprises an aqueous medium which is thickened with a synergistic viscosity mixture of hydroxypropylcellulose and poly(maleic anhydride/alkyl vinyl ether) as a novel hydrocolloid gelling agent.An aqueous medium thickened with a present invention gelling agent is applicable as a vehicle for explosive slurries, printing pastes, paint formulations, adhesives, and the like. A thixotropic aqueous medium of this invention is uniquely adapted for use as a hydraulic fluid in well-drilling operations and in secondary oil and gas recovery from subterranean formations.

Abstract: A modified phenol-formaldehyde resin is formed by reacting phenol and formaldehyde in the presence of alkali and finely divided wood bark, preferably where the bark is pre-treated with alkali. The molar ratio of formaldehyde to phenol ranges from about 3 to 1.6. The molar ratio of alkali to phenol ranges from about 0.5 to about 1.0, said alkali being added to the formaldehyde-phenol mixture in three stages, each stage containing about one-third of the total alkali used. The amount of bark employed ranges from about 10 to about 40% of the amount of phenol. Adhesives prepared from these resins are suitable for use in the manufacture of plywood having both western mill and southern pine mill veneers.

Abstract: An improved flame and fire retardant composition is obtained by reacting the appropriate ingredients in liquid form, drying the product to cake form and pulverizing to obtain a fire and heat retardant powder. This powdered form is advantageous in that it may be readily handled and may be associated or used with fire unstable materials that would be adversely affected by a liquid composition. The powdered form has a low bulk density and can thus create economies in the weight of material used to provide effective fire and heat retardant properties.

Abstract: A method for producing organosilicon oils and resins from alkali pulp black liquors wherein the black liquor is first mixed with a substance having an acidity stronger than silicic acid and then the mixture is heated and concentrated precipitate convert any silicate therein to silicic acid but in a manner to avoid the precipitation of any alkali lignin salts. If the black liquor does not originally contain sufficient amounts of silicates. silicates from an external source may be added. This mixture is then reacted by heating to produce organosilicon resins. The resins and oils thus produced are useful as insulators and heat resistant materials.

Abstract: A method of forming an electrically insulating material having good mechanical properties by mixing a polyvinyl chloride polymer with a natural cellulose material in an amount of from 25 to 30% by weight to form a substantially homogeneous mixture consisting essentially of the polyvinyl chloride and natural cellulose material.

Abstract: An agglomerated fibrous ion exchange cellulose composite wherein the cellulose is embedded in a hydrophobic polymer and relatively large portions of the cellulose is free to adsorb charged macro-molecules.

Abstract: Sizing compositions for coating glass fibers as well as the coated fibers in which the compositions are constituted essentially of two film forming agents and of two lubricants. One film forming agent is a modified starch in which almost the entire mass of starch granules is burst. The second is an acrylic polymer, preferably a water-soluble one. One lubricant is non-ionic and preferably a mineral oil. The second is a polyethylene wax in the form of an aqueous emulsion containing a cationic emulsifier.

Abstract: Cellulose propionate n-butyrate adapted to be mixed with an oil-modified alkyd resin to form a coating composition. The cellulose propionate n-butyrate has unique properties as an ingredient in such coating composition. The cellulose ester has a n-butyryl content of between about 3% and about 5%, a propionyl content of between about 40% and about 50% and a hydroxyl content of between about 2% and about 3%. The coating compositions are especially useful for protection and appearance when used as a coating on such items as wooden furniture.

Abstract: A rubber composition containing polyisoprene rubber or a blend of polyisoprene rubber and polybutadiene rubber has a high friction coefficient against the frozen road surface due to the easy deformability at low temperature and high affinity for water. A pneumatic tire comprising a tread consisting of the rubber composition is excellent in the brake, traction and cornering performances and can travel safely on frozen roads without the use of spikes or a chain.

Abstract: A composition adapted for use around the stoma consisting of a homogeneous mixture of a pressure sensitive adhesive component, mineral oil, and hydrocolloid gums or cohesive strengthening agents or a mixture of hydrocolloid gums and cohesive strengthening agents. By controlling the amount of mineral oil the resulting composition can be easily shaped according to the particular need.