Abstract: A process of producing solid surface material is provided with a thin layer of filled polymer integrally formed with a backing of bubble-filled polymer, without an interface or transition zone in the polymer mix, using two-step wet-on-wet casting.

Abstract: A method for rounding thermoplastic particles whereby the thermoplastic particles are stirred at a temperature around their plastification temperature, Tplast, together with particles that are larger than the thermoplastic particles and that have a higher specific gravity.

Abstract: A method and an apparatus for manufacturing tablets of moist powder which is produced by adding an additive agent such as an excipient or a binder to medical ingredients, further adding a solvent such as water, ethanol or the like, and kneading the mixture.

Abstract: A method of producing a three dimensional section of polymerized liquid. The method includes providing a molding apparatus which includes a mold having at least one side, at least one piece of porous material adjacent to the one side of the mold and at least one support layer adjacent to the piece of porous material. The molding apparatus is clamped together and a liquid is added between the frame and the porous material. The filled molding apparatus is placed in a bath of polymerizing agent until the liquid polymerizes to form a three dimensional section.

Abstract: Cremated ash remains of a deceased individual may be combined in a suitable resin material to fill a statuary urn or to fill a shell as a memorial to the decedent. The sculptural urn or shell may be molded of a resin in any desired shape. By use of a suitable resin with additives, the urn or shell may be molded with surface finishes such as marble, bronze, metal, ceramic, stone, and wood. The same resin may be mixed with the cremated ashes to fill the shell and to top off any remaining space. After the material cures the resulting sculpture may be place in a garden, shrine, or elsewhere as a permanent memorial.

Abstract: An article of manufacture and method of making and implanting the article made of a polyolefin star or linear copolymer are disclosed in which the polyolefin copolymer is biostable and crack-resistant when implanted in vivo. The polyolefin copolymer is the reaction product of a rubbery component which when homopolymerized produces a polymer having a low level of hardness, and a hardening component which when homopolymerized produces a polymer having a high level of hardness. The polyolefin copolymer is elastomeric, has a hardness intermediate the low and high levels of hardness, and has a backbone in which the majority of polymer linkages along the copolymer chain are alternating quaternary and secondary carbon atoms.

Abstract: To increase the anti-wettability of a body vis a vis a fluid the body is subjected in a treatment enclosure to a post-discharge nitrogen plasma. A fluorinated vapor is fed into the plasma on the input side or on the output side of the discharge cavity.

Abstract: A method of making the a multilayer, biaxially oriented, heat shrinkable thermoplastic film includes a layer having between 50 and 100 parts by weight ethylene/alpha-olefin C4-C12 copolymer, and between 0 and 50 parts by weight of a polymer selected from polyolefin, and modified polyolefin, the layer having more than one melting point when detected by diffential scanning calorimetry according to ASTM D-3418; wherein the total thickness variation in the multilayer film is lower than ±10%.

Abstract: The invention relates to a process for the production of fiberboards from coarse wood particles and isocyanate as binder, in which the wood particles are heated under excess water vapor pressure and simultaneously comminuted to fibers which are then delivered with expansion to a drier by means of a blowing pipe, and dried in the drier.

Abstract: The invention provides an injection-molded product of polyglycolic acid obtainable by molding a thermoplastic resin material at an injection temperature ranging from the melting point, Tm of the polymer to 255° C., wherein the thermoplastic resin material comprises polyglycolic acid having a repeating unit represented by the following formula (1): and the following physical properties: (a) the melt viscosity, &eegr;* [as measured at a temperature of (the melting point, Tm of the polymer+20° C.) and a shear rate of 1,000/sec] being 30-10,000 Pa·s; (b) the melting point, Tm being at least 150° C.; (c) the melt enthalpy, &Dgr;Hm being at least 20 J/g; and (d) the density being at least 1.50 g/cm3 as measured in an unoriented, crystallized form, and a production process thereof.

Abstract: Process for manufacturing a blown film essentially consisting of an aliphatic polyester, according to which: (1) the polyester is synthesized from at least one cycloaliphatic ester, with the intervention of an initiator comprising at least one metal trialkoxide and/or metal tetraalkoxide, in an extrusion device; (2) the polyester is extrusion blow-moulded, immediately after it has been synthesized in the said extrusion device, fitted for this purpose with an extrusion blow-moulding die, with a swelling ratio of at least 2.5. The invention also relates to a film essentially consisting of an aliphatic polyester, which can be obtained according to the process of one of the preceding claims, in which the modulus of longitudinal elasticity (LE) and the modulus of transverse elasticity (TE) and the longitudinal shrinkage (LS) and transverse shrinkage (TS), these shrinkages being measured at a temperature about 5° C.

Abstract: A method for forming an automotive instrument panel having a concealed door comprising a series of steps. A plastic parison is extruded to form the substrate layer of the instrument panel. The parison has first and second walls. The parison is placed within a mold and the first wall is contacted with the second wall to form a hinge. The area of contact forms a bond between the first and second walls. A different portion of the first and second walls are contacted to form an opening path. The opening path intersects the hinge. The opening path usually has a thickness much less than the thickness of the first and second walls to form an easily fracturable area. The door swings on the hinge to open. A elongated section of material on the second wall, enables the second wall to wrap along the hinge when the door is opened.

Abstract: A fluorinated oligomer having COOH groups at both end and a &rgr;50° value of 1,000 to 10,000 is produced by swelling a fluorine rubber crosslinking product in an organic solvent, followed by decomposition in the presence of a base and a peroxide. The obtained fluorinated oligomer is soluble in solvent and thus easy to separate from fillers, etc., and can be effectively used as a chain-elongating agent for epoxy resin, isocyanate resin, oxazoline resin, etc.

Abstract: A silver-colored sintered product having excellent corrosion resistance containing titanium, carbon and boron as indispensable constituent elements, and including in the sintered product composition a titanium boride phase or a boride phase which contains titanium as a chief metal element and a titanium carbide phase or a carbide phase which contains titanium as a chief metal element and a method of producing the same. The sintered product has a flexural strength of not smaller than 700 MPa, a Vickers' hardness of not smaller than 9.0 GPa and a fracture toughness of not smaller than 5.0 MPa·m½.

Abstract: A method of fireproofing a component of thermoplastic material belonging to an installation for distributing a flammable liquid such as a fuel, the method consisting in coating the outside of the component in a compound based on polyvinyl chloride (PVC) that is grafted so as to be cross-linked.

Abstract: A multiply-acting powder metal press is disclosed for making green form double helical gear compacts. The press has inner and outer lower punches, and an upper, outer punch. The upper and lower outer punches have left hand and right hand external helical profiles as chosen to produce a desired helical gear. The punches co-operate with left hand and right hand helical dies carried by the press about the punches. The helical faces require that the dies rotate relative to the punches during operation. A cam and roller mechanism may drive this rotation. The compact forming process commences with an open position in which powder is introduced to a vacant lower die cavity. The upper portions of the press advance downward to close the cavity. All parts of the press except the lower inner, or transfer, punch then move downward at the same speed to transfer powder to the extremities of the cavity. When transfer is complete both lower punches may be stopped, while the upper punches continue to advance.

Abstract: In the case where an upper punch and a die are made rotatable, a lower punch that is fixed in a conventional example is rotatably supported. Further, a guide mechanism with fixed helical lead for guiding the die is constructed of a guide whose lead is identical to a lead of helical gear contour, and a cam follower that engages with the guide. The guide and the cam follower are arranged so as to correspond to the die and a part with fixed helical lead that is a newly arranged component in the invention. The meshed portion between the helical gear contours of the upper and lower punches and helical gear contours formed on a die or a core rod is free from any excessive force even when a lead-phase shift occurs between helical gears formed on upper and lower punches due to the flexing of the punches during compression.

Abstract: A hydrocolloid product having improved dispersibility and wettability characteristics in aqueous medium is provided by dry blending in a heated state the hydrocolloid powder particles with molten, normally solid nonionic surfactant. The heated mixing state is at a temperature greater than the melting temperature of the solid nonionic surfactant. After suitable mixing, the resulting mixture of surfactant-coated powder particles is extruded to produce granules of the hydrocolloid-nonionic surfactant mixture, which granules are cooled to below the melting temperature of the nonionic surfactant to provide a readily water dispersible, readily wettable hydrocolloid product.

Abstract: Continuous methods for manufacturing finished board are disclosed which include disintegrating lignocellulose material prior to drying, gluing, and forming into mats, and in which the pressing of the mat into a board includes a first step in which the mat is pressed in the presence of steam in a heating medium to produce a partially pressed board having a substantially uniform density, and a second compressing step in which the outer layers of the partially pressed board are increased in density as compared to the center of the board.

Abstract: When a desired preform is to be molded from a molding material which is a polyester resin composed of a blend of PET and PEN by compressing and melting the molding material by the rotation of a screw in a heating cylinder and injecting and filling the molten material into a mold, a plastication zone 13 for the molding material is formed between a compression zone 12 of the injection screw 2 and a metering zone 14 at an end of the screw. In the plastication zone 13, the molding material is subjected to melting, relaxation, kneading and relaxation steps in order to melt and remove an unmolten material until the molten material reaches the metering zone 14. To prevent a molded article from becoming opaque and the production of a gel-like unmolten granular material when a polyester resin composed of a blend of PET and PEN is used as a molding material.