摘要:
Plastic containers having improved physical properties are prepared from a composite billet having an outer peripheral area composed of a thermoplastic resin and an inner central core portion composed of the thermoplastic resin modified with a material which imparts improved physical properties such as reduced gas permeability or increased stiffness or rigidity to the resin. The composite billet is molded into a container wherein the billet core is formed into the sidewalls and bottom of the container and the peripheral portion is formed into a flexible thermoplastic flange surrounding the open end of the container which can be doubled seamed to a metal end closure without fracture.
摘要:
A device includes an electromagnetic radiation delivery system such as a laser of light emitting diode infrared emitter configured for delivery of electromagnetic radiation within a sealed canal such as an ear canal, a fiber optic cable configured for delivering or capturing the electromagnetic radiation within the sealed canal, and a photo detector coupled to the fiber optic cable forming a portion of a voice communication system. Other embodiments are disclosed.
摘要:
An extruded blow molded bottle comprises a neck portion and a body portion. The body portion comprises a first inner layer and a second layer. The first inner layer comprises a first material selected from a group consisting of polyester, phenoxy type thermoplastics, phenoxy-polyolefin thermoplastic blends, and combinations thereof. The second layer comprises a second material selected from a group consisting of virgin PET, recycled PET, PETG, foam, polypropylene, polyester, polyolefins, phenoxy type thermoplastic, phenoxy-polyolefin thermoplastic blends, regrind scrap materials, and combinations thereof. The second material is different from the first material.
摘要:
An earpiece is provided containing a thermal activator layer comprised of a first polymer, the thermal activator layer being separated from the tympanic membrane of the user's ear by an air gap, and an acoustical reflector layer, containing a second polymer and pigment particles, adjacent to the thermal activator layer. The earpiece may be produced by sequential introduction of various liquefied components in layers within the ear canal, with the components being cured to provide the thermal activator layer and the acoustical reflector layer.
摘要:
In preferred embodiments there are provided containers such as bottles comprising at least one layer made from a foamable material comprising a polymeric carrier material and microspheres which expand during heat treatment to form the foam. The articles may be mono and multilayer. The articles can be formed by various methods.
摘要:
Disclosed are compositions comprising plasticizer, first organic polymeric material fused or fusible in the plasticizer and second polymeric material not fusible in the plasticizer, said second polymeric material having a softening point temperature less than about the fusion temperature of the first polymeric material in the plasticizer. The first polymeric material preferably comprises vinyl resin and the second polymeric material preferably comprises acrylate polymers in particulate form. Also disclosed are methods for producing surface coverings comprising converting the liquid plastisols of the present invention to solid compositions under time and temperature conditions sufficient to enable softening, and preferably substantial softening and swelling, of the second polymeric material prior to fusion of the liquid composition.
摘要:
A method of manufacturing a columnar shaped piece formed of a thermoplastic matrix with ancillary pieces of a non-creeping hard material embedded therein and cemented by the plastic matrix. The ancillary pieces are essentially overlapping slabs which are substantially parallel to one another and the axis of the columnar shaped piece. Molten thermoplastic blended with solid slabs is extruded in the form of a billet into one end of an elongate mold and rotated around the inner surface of the mold. The extrusion continues until the inner surface is uniformly covered with constituents of the billet.
摘要:
Paint compositions which contain stretchable polymers and reflective metal flakes are used to form stretchable films for the thermoforming of protective and decorative films on various articles, including automobile panels. The use of low melting metallic flakes improves the retention of gloss when the films are stretched during thermoforming.
摘要:
PLASTIC SHEET MATERIAL HAVING A TEXTURED, GRANULAR, RELIEF SURFACE IS MADE, WITHOUT NECESSITY FOR RESORTING TO SURFACE MOLDING OR EMBOSSING TO PROVIDE THE RELIEF EFFECTS, BY PARTIALLY EMBEDDING VINYL RESIN GRANULES IN THE SURFACE OF A VINYL PLASTISOL BASE LAYER. CONTOURED AUTOMOBILE MATS, OR FLAT SHEET GOODS WITH OR WITHOUT A TEXTILE OR OTHER REIN-
FORCING BACKING, MAY BE MADE BY THE MEDHOD. FLOCK MAY BE APPLIED TO THE SURFACE OF THE GRANULES TO GIVE TEXTILELIKE EFFECTS.