摘要:
Methods of making containers are provided, including providing a material sheet (200) having at least two barrier layers (204) and at least two polymer layers (202), forming the material sheet into a tube (312), sealing the tube at a seal area, and blow molding the tube to form a container in which the at least two barrier layers form a substantially continuous barrier at the seal area.
摘要:
Sustainable film compositions and articles including recycled elastomer. The compositions comprise one or more virgin polymers. Optionally, the films may also include one or more compatibilizers having compatibility with the polymers and a thermoplastic elastomer (TPE) such as a block copolymer with a hard block and a soft block. Multi- or mono-layer films are possible. The films are useful for packaging films or component films for consumer products.
摘要:
A sheet for thermoforming made of a polylactic acid resin composition containing a polylactic acid-based resin, a plasticizer, and a crystal nucleating agent, wherein the sheet has a thickness of from 0.1 to 1.5 mm, and wherein Re (cal) calculated by the following formula (A): Re (cal) = Re (obs)/d×10 -6 (A), wherein Re (obs) is a phase difference (nm) measured at a wavelength selected from wavelengths of from 380 to 780 mm, and d is a thickness (mm) of the sheet, is within the range of 0.001 × 10 -3 ‰¤ Re(cal) ‰¤ 1 × 10 -3 . The sheet for thermoforming of the present invention has a wide moldable temperature region, so that the sheet can be suitably used in various applications such as food containers, packaging materials for daily sundries and household electric appliances, industrial trays of industrial parts, and the like.
摘要:
A method for preparing coated binder units wherein the coated binder units comprise a core of binder coated with a layer of coating material, wherein the binder is a bituminous binder or a synthetic binder comprising a resin, an oil and optionally a polymer, which method comprises the steps of : (a) supplying the binder and the coating material to an co-extrusion device which comprises an even number of pairs of inner and outer dies, whereby the binder is supplied to the inner dies and the coating material is supplied to the outer dies; (b) co-extruding the binder and the coating material by means of the co-extrusion device, thereby producing streams of extrudate in which the binder is coated with a layer of the coating material; and (c) optionally, shaping the streams of extrudate, into units of the coated binder. The invention further relates to the co-extrusion device.