Abstract: Embodiments of the mold for making the Chemical Resistant Composite Support Pad are comprised of a top and bottom molds where the top mold is comprised of a mold lip, a pneumatic ejection port, a lid aperture, a magnetic cover for the pneumatic ejection port, and a lid. The method of making a chemical resistant composite support pad comprises the steps of spraying a coating of polymer agent into the top mold and the bottom mold. A controlled run of an agent is sprayed into the joined top and bottom molds along the joint of the top mold and the bottom mold. Polymeric foam is injected through the lid aperture, the lid is replaced, and the foam is allowed to cure. The molds are separated, and compressed air is used to eject the support pad out of the mold. Any irregularities are repaired by spraying the coating of polymer agent.

Abstract: This disclose relates to dope for spinning lyocell including cotton linter pulp and an aqueous solution of N-methylmorpholine-N-oxide (NMMO), a method for manufacturing lyocell filament fiber using the dope, lyocell filament fiber manufactured by the method, a method for manufacturing lyocell staple fiber using the dope, and lyocell staple fiber obtained by the manufacturing method. According to the present invention, fiber that exhibits a low orientation degree and fibrillation degree, and a high elongation, and thus may be applied for fiber for high grade clothing, may be provided without conducting additional processes.

Abstract: Process for producing from a rubber mixture blanks for finished parts in the rubber industry is composed of an extruder having a cylinder and a screw rotatable in the cylinder to plasticize a rubber mixture fed into the cylinder, an extrusion head and a gear pump between the extruder and the extrusion head for producing extrusion pressure and forcing the mixture through the extrusion head at a predetermined rate per unit time to form a uniform strand of predetermined shape which is cut into uniform lengths.

Abstract: A finishing process for water-slurried elastomers wherein a partially dewatered elastomer is presented to an enclosed, low shear, self-cleaning, long residence time dryer for drying at low temperatures in order to remove the remaining water and residual volatiles. The dried product is then cooled in a pneumatic conveyor to temperatures required for baling.

Abstract: A method for coagulation of a polymer latex by feeding the polymer latex to an extruder having a base plate and a plurality of fine tubes fixed to said base plate and extending therefrom, said fine tubes being mutually spaced by at least 1 mm and protruding from said base plate by at least 3 mm, and discharging said polymer latex through said fine tubes into a coagulation solution to coagulate the latex.

Abstract: Extruded articles such as filaments and films are fabricated by blending the components of a curable liquid silicone rubber composition at temperatures of from -60.degree. to +5.degree. C. and then extruding the composition into water maintained at a temperature of at least +25.degree. C. to cure said composition. The water bath preferably contains a surfactant to facilitate processing of the extruded article. The present method provides uniformly cured articles that are almost bubble-free and have low shrinkage ratios.

Abstract: A method for obtaining strips from a material, particularly a latex coagulum, is characterized by raising the material with a fluid via a solid piece arranged below the material and placed directly in contact with the material, and cutting the material into strips above the solid piece by the use of cutting means.The invention also concerns apparatus for carrying out this method, as well as the strips obtained by this method or with the apparatus.

Abstract: Making polymeric extrudates having a smooth surface by feeding a molten polymeric core material through a die cavity wherein a portion of the wall of the die cavity is a rigid microporous structure located upstream from a narrowed flow passage of the die cavity, the microporous structure having a substantially uniform pore size, simultaneously forcing under pressure through the microporous structure about 0.03-10%, based on the total weight of the extrudate, of a low viscosity liquid to form a sheath on the molten polymeric core material thus displacing the polymeric core material before the resulting sheath-core composite enters the narrowed flow passage of the die cavity said process conducted under conditions to produce a pressure drop across the microporous structure of at least 0.10 MPa more than the pressure applied on the polymeric core material.

Abstract: A rubber sheet for a turntable characterized by being a cured molding of a rubber composition, the cured molding having a hardness within the range from 30.degree. as measured with an A-type rubber hardness tester to 15.degree. as measured with an F-type rubber hardness tester and an impact resilience of not less than 40%. This rubber sheet effectively prevents the tone quality of reproduced sounds from deteriorating due to howling or external vibrations and permits reproducing source sounds faithfully.

Abstract: When a small amount of polytetrafluoroethylene powder is mixed with certain curable polydiorganosiloxane compositions containing a reinforcing silica and an organic peroxide curing agent and the resulting mixture is extruded and heat-cured, the resulting elastomeric article has a durometer of less than 30 and has a greatly reduced amount of porosity or bubbles.

Abstract: Disclosed is a process for fabrication of elastomer or plastomer tubes from sensitized aqueous dispersions wherein the tube is extruded through a shaping apparatus. Heated air is discharged into the tube as it is extruded, with the heated air flowing axially through the tube to vaporize and remove serum exuded into the tube as the gelling process continues. The tube, having the heated air flowing therethrough may be passed through a washing vat to remove serum from its external surface.