Abstract: Provided is a method of stabilizing an elastomeric property of an elastomeric material. The method includes placing the elastomeric material in a pressurizing chamber and applying a suitable hydrostatic pressure to the elastomeric material within the pressurizing chamber to at least partially compress the elastomeric material. Application of the hydrostatic pressure is maintained for a period of time suitable to at least partially stabilize a restorative force exhibited by the elastomeric material in response to subsequent exposures of the elastomeric material to a compressive force.

Abstract: The invention relates to a continuous or discontinuous method for the production of highly condensed polyesters in the solid state, comprising a crystallization of a polyester material, wherein the crystallization is carried out in the presence of a gas with a dew point of (less than or equal to) ?approximately ?10° C. The invention also relates to a method for the production of polyester formed bodies using the polyester material obtained for the production of bottles, films and high strength threads.

Abstract: A method of preventing delamination of multiple layers of an oriented polymer container having an opening defined by the multiple layers comprising a bi-axially oriented multilayer polymer container having an opening defined by a perimeter at which the multiple layers are exposed; heating the perimeter until workable; providing a curling die; feeding the multilayer perimeter into the curling die to curl the perimeter sufficiently to inhibit delamination of the layers and a container when so made.

Abstract: The effects of interfacial transition between organic and inorganic layers of a multilayer construction are ameliorated by incorporating an inorganic component within the matrix of the organic layer. In a first aspect, a construction having adjacent organic and inorganic layers is fabricated by depositing a curable polymer, softening the polymer, and integrating an inorganic material therewith. The polymer is then cured to immobilize the integrated deposition material, and the desired inorganic layer is applied over the deposited inorganic material (and any exposed portions of the polymer). In a second aspect, a graded structure is built up on a substrate in successive deposition steps. Both polymer precursors and an inorganic filler material are deposited in stages, with each stage containing a desired ratio of polymer to filler.

Abstract: Disclosed is a method for producing a molding material, which comprises melt-extruding a styrenic polymer essentially having a syndiotactic structure or a composition containing the polymer to give strands, then rapidly cooling the resulting strands to thereby make the surface temperature of the strands not higher than the melting point of the styrenic polymer or the composition containing the polymer, and thereafter gradually cooling them to thereby make the surface temperature of the strands not higher than a temperature higher by 20.degree. C. than their glass transition temperature, and finally pelletizing the strands into pellets. The pellets produced have a high degree of crystallinity and can be well molded into good moldings.

Abstract: A method for molding a rubber compound concurrently with vulcanizing thereof utilizing the technique of high or very high frequency dielectric heating. An apparatus for molding the rubber compound concurrently with vulcanizing thereof is composed of a high voltage power source, a vacuum tube where electric waves are generated, a pair of electrode plates, and a mold having, sulfur corrosion resistance. The power source, vacuum tube and electrodes plates are electrically interconnected. The mold is attached to the electrode plates and holds the rubber compound. The rubber compound is formed of a rubber material and other constituents to raise the value of dielectric loss factor of the rubber to more than 0.20. The waves generated are determined in the HF (high-frequency) or VHF (very high-frequency) band range for effectively carrying out dielectric heating.

Abstract: A self-sustaining container made of a saturated polyester resin, formed by biaxial stretch blow molding and comprising a mouth and cervical portion, a shoulder, a body and a bottom, wherein said bottom has a self-sustaining structure with a plurality of legs radially bulged around the center of the bottom and valley lines formed between the adjacent legs, and the following portions (A) to (E) are low stretched portions and at least portions (B) and (C) among the following portions (A) to (E) are crystallized portions:(A) center of the bottom(B) peripheral portion of the center of the bottom(C) portion of each valley line close to the center of the bottom(D) portion of each leg from the edge of the peripheral portion of the center of the bottom to a ground contact portion(E) portion between said portions (C) and (D).

Abstract: Methods for the formation of biaxially oriented thermoplastic articles having flat surfaces or sharp contours, along with the articles themselves. Such methods relate to blow forming a sheet of unoriented thermoplastic material to form biaxially oriented shaped intermediates, followed by the heat-shrinking of the biaxially oriented intermediates onto a male form to produce articles of exacting dimensions and flat surfaces or sharply defined contours. Such thermoplastic articles include autoclavable, hot fillable, heat stable, transparent PET containers.