Abstract: Synthetic thermoplastic polymer fibers are prepared by extruding a foamed fibrillated sheet of a normally solid synthetic thermoplastic polymer, attenuating the molten foamed sheet as it is extruded and applying either a cutting and/or a shearing action to the solid attenuated sheet to cause it to break down into short fibers containing numerous fibrils. The polymer is polypropylene, polyethylene or a mixture of polystyrene and polypropylene or polyethylene in which the mixture contains more than 40 weight percent of the polyolefin. These short fibers can be blended with natural pulp. The resulting blend can be wet laid to form a coarse paper and then formed into a final paper product by application of heat and pressure. The resulting paper has certain superior properties.

Abstract: Synthetic paper pulp is prepared by extruding a foam sheet of a synthetic thermoplastic fiber forming resin, which resin contains from 0.1 to 5.0 wt. % and preferably from 1 to 2 wt. % of a soap such as aluminum stearate, attenuating the foam sheet as it is extruded and applying either heat or a shearing action to the attenuated sheet to cause it to break down into short fibers containing numerous fibrils. This pulp is then either used directly or blended with natural pulp, wet laid to form a coarse paper and then formed into a final paper product by application of heat and pressure. The soap serves to improve the wettability of the resulting fibers.

Abstract: An organo-tin compound, useful as an antiwear additive to fuels or lubricants, is obtained by polymerization of isobutylene in the presence of stannic chloride in a solvent.CROSS REFERENCES TO RELATED APPLICATIONSThis is a division, of application Ser. No. 381,634 filed July 23, 1973.This application is a continuation-in-part of Ser. No. 135,295 filed Apr. 19, 1971, Ser. No. 144,165 filed May 17, 1971 (now U.S. Pat. No. 3,715,313 issued Feb. 6, 1973), and Ser. No. 152,303 filed June 11, 1971, now U.S. Pat. No 3,793,203, the entire disclosure of said applications being incorporated herein by reference.Also incorporated herein by reference is the entire disclosure of U.S. Pat. No. 3,411,369 issued Nov. 19, 1968, U.S. Pat. No. 3,440,894 issued Apr. 29, 1969, U.S. Pat. No. 3,597,358 issued Aug. 3, 1971, U.S. Pat. No. 3,595,796 issued July 27, 1971, U.S. Pat. No. 3,595,797 issued July 27, 1971, U.S. Pat. No. 3,598,740 issued Aug. 10, 1971, U.S. Pat. No. 3,608,385 issued Sept. 28, 1971 and U.S. Pat. No.

Abstract: Novel compositions, useful as additives to lubricants, are produced by reaction of various reagents with novel polyisobutylene oligimers containing at least one pair of maximally crowded geminal methyl groups. For example, ozonolysis of the novel polyisobutylenes can produce oxygenated derivatives (ketones, esters, alcohols, etc.) which are useful as components of traction fluids. One such alcohol is 1,1,3,3,5,5,7,7-octamethyl-1-octanol, which has been identified by its NMR spectrum and that of its complex with Eu(DPM).sub.3. Other novel compounds are 4,4,6,6,8,8-hexamethyl-2-nonanone and 2,2,6,6,8,8-hexamethyl-4-nonanone.

Abstract: Polyolefins, paraffins and polar compounds containing a gem-structured hydrocarbon "backbone" are useful as traction fluids or as components of traction fluids. For example, compositions, useful as additives to lubricants (e.g., components of traction fluids), are produced by ozonolysis of polyolefins, particularly of polyisobutylene oligomers containing at least one pair of maximally crowded geminal methyl groups to produce gem-structured, oxygenated derivatives (ketones, esters, acids, aldehydes, alcohols, etc.). Other polar compounds, useful as additives to lubricants or other mineral oil products (e.g., rubber process oils) can be obtained by conversion of polyisobutylene oligomers to polar compounds containing such functional groups as amine, imine, thioketone, amide, thioester, phosphate esters of the alcohols, ether, oxime, acyl halide, acyl hydrazide, chloride, bromide and maleic anhydride adducts. Salts of the carboxylic acids can also be useful as lubricant additives.

Abstract: Non-woven fabrics are produced from oriented foam fibrillated webs contaning 50 to 98 wt. % polypropylene and 2 to 50 wt. % polystyrene. The webs are assembled in a plurality of layers and then bonded by heat and pressure either with or without the presence of an adhesive. In a preferred aspect films especially of polyethylene or ethylenevinyl acetate copolymers are used as the bonding agent.

Abstract: Non-woven fabrics are produced from polyolefin foam fibrillated webs. The webs are treated with an aqueous solution of a small amount of chromic acid in strong sulfuric acid to improve the adhesion thereof when they are laminated under heat and pressure to form a non-woven fabric.

Abstract: Non-woven fabrics are produced from oriented foam fibrillated webs containing 75 to 98 wt. % polypropylene and 2 to 25 wt. % polyethylene. The webs are assembled in a plurality of layers and then bonded by heat and pressure either with or without the presence of an adhesive.

Abstract: Non-woven fabrics are produced from polyolefin foam fibrillated webs. The webs are treated with corona discharge to improve the adhesion thereof when they are laminated under heat and pressure to form a non-woven fabric.

Abstract: Non-woven fabrics are produced from oriented foam fibrillated webs containing 75 to 98 wt. % polypropylene and 2 to 25 wt. % of an ethylene-vinyl acetate copolymer containing from 2 to 40 wt. % vinyl acetate and 60 to 98 wt. % ethylene. The webs are assembled in a plurality of layers and then bonded by heat and pressure either with or without the presence of an adhesive. In a preferred aspect films especially of polyethylene or ethylene-vinyl acetate copolymers are used as the bonding agent.