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WO/1994/019163A2 |
An apparatus and method for uniformly irradiating a strand (22) of plastic material by twisting the strand as it is advanced in a plurality of paths transverse to an electron beam. A set of pinch rolls are positioned on opposite ends of ...
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WO/1994/017986A1 |
Many thermoplastic polymers suffer from time dependent deformation when used at elevated temperatures. The present invention relates to a method of preconditioning a non-isotropic composite cylindrical member (11). The method involves fi...
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WO/1994/015773A1 |
Articles (other than fiber) made from polybenzazole dopes are quickly washed to remove polyphosphoric acid by a combination of initially washing with an acidic liquid and second washing with a hot leaching fluid at least 60 �C. The pro...
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WO/1994/016001A1 |
Films made from polybenzazole dopes can quickly be leached to remove polyphosphoric acid and other residual solvents by passing a leaching fluid such as steam through pores in the wet, never-dried film. The process can reach acceptable r...
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WO/1994/015997A1 |
Films prepared from aqueous dispersions of block copolymers, optional diluents and surfactants corresponding to the formula: A-B-Xm-(B-A)n wherein each A is a polymer block of a monovinylidene aromatic monomer and, optionally, a conjugat...
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WO/1994/012328A1 |
Compositions, methods, and apparatus for manufacturing sheets having a highly inorganically filled matrix prepared by mixing together an organic polymer binder, water, one or more inorganic aggregate materials, fibers, and optional admix...
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WO/1994/011173A1 |
A process for producing polylactide molded bodies is characterised in that an amorphous polylactide semi-finished product or a compact amorphous preform is heated up to a temperature between 60 and 150 �C. The preform remains amorphous...
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WO/1994/011175A1 |
A solvent-free hot melt process, for preparing a non-thermosettable, pressure-sensitive adhesive from a tackified non-thermoplastic hydrocarbon elastomer. The process employs a continuous compounding device that has a sequence of alterna...
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WO/1994/008772A1 |
In a process for manufacturing formed parts made of hot-formable plastics, in particular polyolefines such as polyethylene and polypropylene, the plastic material is heated up to or over its ductile temperature, is formed in said state i...
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WO/1994/008779A1 |
A method for electrostatically charging a film (12) by sequentially subjecting the film (12) to a series of electric fields such that adjacent electric fields have substantially opposite polarities. An apparatus for electrostatically cha...
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WO/1994/002304A1 |
In order to improve the productivity of pressure-resisting bottles by reducing the blow time from 4-5 seconds in a conventional bottle molding method to not more than 3 seconds, and mold pressure resisting bottles free from the occurrenc...
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WO/1993/022130A1 |
A method of easily correcting the shape of a thermoset resin lens for spectacles which is deformed and deviated from the preset forming standards when the lens undergoes various heating processes after the lens is formed. In this method,...
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WO/1993/020395A1 |
An apparatus (10) for the constrained drying and/or heat treating of a continuous roll of film. This apparatus (10) includes a mechanism (46) which grasps a film (112) by its edges and moves said film (112) through a drying zone, with sa...
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WO/1993/018913A1 |
A laminated printing blanket (5) having compressible and resilient properties and a method for its production are provided. The compressible characteristics are provided by disposing an intermediate layer (10) having substantially unifor...
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WO/1993/017918A1 |
A container made of a synthetic material, e.g. a bottle (10), comprising a closed bottom wall (11) and an opening (12) in the upper portion opposite the bottom wall. The container is produced according to a blow moulding, stretch blow mo...
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WO/1993/015146A1 |
Polyester composition with improved impact properties, improved oxygen permeability and improved dimensional skrinkage during heating. Impact modifiers are dissolved into a molten polyester to form a eutectic alloy. On slow cooling, the ...
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WO/1993/014922A1 |
The invention provides crystalline polyester articles having an oxygen permeability of from about 0.2 to about 4.9 cc-mil/100 in?2¿-24 hr-atm, and an enthalpy of recrystallization of from about 0 to about -2.1 cal/g. They are prepared b...
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WO/1993/015134A2 |
A method of enhancing the ionizing irradiation sterilization stability of an optically transparent, rigid, heat processible thermoplastic polymer comprising modifying the polymer to decrease the glass transition temperature thereof to a ...
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WO/1993/009548A1 |
The invention relates to a method in connection with a process for insulating or sheathing conductors or the like, wherein plastic material is extruded into at least one layer on the surface of the conductor (1), and the conductor coated...
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WO/1993/008015A1 |
In order to temperature-control thermoplastic floor coverings when they are laid, thus avoiding the necessity to allow them to lie for a long period at the site where they are laid, the invention proposes a heating device containing at l...
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WO/1993/006191A1 |
The present invention provides methods of preparing thermotropic and lyotropic liquid crystalline polymer film-based and tubular components having a controlled CTE and components produced by such methods.
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WO/1993/005853A1 |
A process is disclosed for producing a strip of ski coating material made of ultra high molecular weight polyethylene. A strip of ski coating material (4) produced by a screw or ram extrusion, or by pressure sintering, then by slicing in...
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WO/1993/004843A1 |
A process for increasing the crystallization rate of a sheet of amorphous polyester (26) including the steps of raising the temperature of the sheet (26) to or above the glass transition temperature of the polyester, stretching the sheet...
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WO/1993/003114A1 |
The invention concerns a method for the production of liquid-crystal elastomers or duromers with a permanently fixed anisotropic reticular structure, the method being characterized in that liquid-crystalline elastomers containing reactiv...
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WO/1993/001855A2 |
A unitary, flexible, substantially noncollapsible catheter tube (30) of biocompatible material is comprised of hard and soft regions. The hard regions can be ring shaped or helical. The hard regions (20) provide sufficient rigidity to th...
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WO/1993/000213A1 |
A method for producing a polytetrafluoroethylene (PTFE) tape with a density no greater than 0.3 g/cm3, wherein a first stretching step is carried out on a raw PTFE tape (A, B) to reduce its density to 0,7-0,3 g/cm3, whereafter a step of ...
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WO/1992/020728A1 |
The invention relates to a method for producing an ionomer comprising of: (i) providing a plastic; (ii) placing an electrically conducting medium in contact with a plastic surface of the plastic; and (iii) applying an electrical field ov...
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WO/1992/020511A1 |
A combination of apparatus for forming a nonwoven fibrous sheet (20) having greater usable width, including a plurality of centrally located spinning packs and a plurality of edge spinning packs, each of which includes a spinning assembl...
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WO/1992/017709A1 |
A plastic part is molded of a plastic with an inner body (44) of crystalline plastic and an outer surface layer (46) of an amorphous plastic. The amorphous surface layer withstands friction loading at least during an initial break-in per...
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WO/1992/014555A1 |
A method for increasing the resistance of a coating such as a color/clear composite coating to water spotting and acid etching is disclosed. The method involves exposing the coated substrate to ultraviolet radiation after heat curing of ...
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WO/1992/010560A1 |
An effective phosphate free and organic solvent free aqueous acidic cleaner for soiled plastic surfaces is an aqueous solution or dispersion that has a pH in the range from about 4.4 - about 6.1; that has a buffering capacity sufficientl...
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WO/1992/005887A1 |
A continuously extruded rubber article is vulcanized in a fluid bed of inert pellets and the pellets which remain attached to the sticky surfaces of the rubber article are detached and recovered by making the rubber article (6) travel th...
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WO/1992/003297A1 |
A method and apparatus are described for providing a body of material (14) with sub-surface mark in the form of an area of increased opacity to electromagnetic radiation. The method comprises directing at a surface of the body (14) a hig...
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WO/1992/003495A1 |
A biaxially oriented film of a polyether ether ketone (PEEK) having excellent accuracy, insulating properties and thermal shrinkage resistance is easily obtained from a noncrystalline PEEK film by roll stretching the film 1.5- to 3.5-fol...
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WO/1992/001548A1 |
The present invention relates to a process for producing degradable, shrinkable films of polyhydroxy acid and plasticizers including melt processing the materials to obtain uniform composition, forming the composition into a film and bia...
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WO/1992/000708A1 |
Disclosed is a method for producing an intraocular lens (21) including an optic (26) and at least one haptic (28). In one embodiment the method comprises: exposing the lens bonding region (34) of the haptic (28) to a plasma at conditions...
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WO/1991/019604A1 |
A molded article of a crystalline thermoplastic resin with high gas barrier properties, produced while optimizing the crystal orientation of the resin to give a product with a specified monoaxial monoplanar orientation, thus remarkably i...
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WO/1991/019586A1 |
A process for forming a shaped laminate for use in a safety glazing such as a vehicle window or the like which comprises lightly bonding at least one flexible, transparent, thermoplastic carrier layer having one or more adherent function...
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WO/1991/018930A1 |
Perfluoroelastomers cured by radiation and characterized by an absence of curing agent residues in the cured product. The elastomers are terpolymers derived from tetrafluoroethylene, a perfluoroalkyl perfluorovinyl ether with alkyl of 1 ...
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WO/1991/016478A1 |
A molding which is reversibly discolorable in accordance with the conditions of water-absorbing and drying thereof, wherein the molding consists of a layer having open micro-voids (hereinafter referred to as a ''scatter layer'') and a la...
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WO/1991/015626A1 |
A process for coloring polymers, which comprises the steps of: dipping a polymer which swells in water or an aqueous solvent mixture or a molding of the polymer in a treating fluid comprising an aqueous solvent mixture containing a color...
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WO/1991/009723A1 |
A method and an apparatus to thermocrystallize amorphous thermoplastic material in a bottom portion (11) of a preform (10) while producing a container. By means of at least one heating device (20, 30) the plastic material is heated to an...
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WO/1991/009730A1 |
A process for producing a laminate by coextruding a polyester resin, an adhesive resin and a polyolefin below 300 �C, subjecting the surface of the polyolefin layer to corona discharge treatment, and immediately thereafter bonding the ...
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WO/1991/006420A1 |
An adhesive-coated thermoplastic film (64) is stretched and bonded to a three-dimensional substrate by vacuum thermoforming at a lower than normal temperature, at which the film has an elastic modulus of at least 109 dynes/cm2, followed ...
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WO/1991/005353A1 |
An illuminance controlling device according to the present inventin comprises: a conveyor (5) for conveying products (4); a first shielding member (1) disposed between the conveyor (5) and an irradiating device opposed to the conveyor (5...
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WO/1990/015674A1 |
An improved stereolithographic apparatus and method is described. In one embodiment, the improvement comprises immersing at least a portion of a part (109) in a volume of a liquid solvent in a vapor degreaser while subjecting the portion...
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WO/1990/014940A2 |
A method of producing a fluidic module from two or more pieces (B1, B2) of plastic material having an intermolecular bonded interface, comprises forming an interface surface (2) on each piece, forming at least one fluidic passageway (4) ...
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WO/1990/012843A1 |
A syndiotactic polypropylene resin composition comprising polypropylene having a substantially syndiotactic structure and a nucleating agent. The polypropylene may be any of homopolymers, copolymers with a small amount of other olefin(s)...
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WO/1990/012839A1 |
A highly rigid, impact-resistant molding, for which the melting point assignable to a syndiotactic polypropylene as measured by differential scanning thermal analysis at a temperature rise rate of 10°C/min gives a single peak, is produc...
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WO/1990/012057A1 |
A highly rigid, impact-resistant molding, for which the melting point assignable to a syndiotactic polypropylene as measured by differential scanning thermal analysis at a temperature rise rate of 10°C/min gives a single peak, is produc...
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