The invention relates to a preform intended for forming containers by blow molding or stretch-blow molding, the preform being made of plastic material including at least one additive giving the plastic material the property of at least partially filtering the visible light spectrum, the preform comprising a wall forming a hollow body, said one or more additive(s) giving the plastic material the property of at least partially allowing the passage of light in the infrared spectrum.

A system includes a plurality of assemblies each configured to support a dental mold and a material, a heating system configured to heat the material, a forming system configured to form a chamber encompassing the dental mold and at least a portion of the heated material, and to cause the heated material to form over the dental mold, and a conveyor system configured to move the plurality of assemblies from a loading area to the heating system, from the heating system to the forming system, and from the forming system to an unloading area.

The present invention relates to a polymer composition comprising a polypropylene, an ethylene based elastomer, a grafted polypropylene and glass fiber. The polymer composition according to the present invention has improved flowability and falling weight impact resistance at low temperature.

A system includes a first tubular member comprising a first polymer and a second tubular member comprising a second polymer. The first tubular member defines a lumen configured to receive at least a portion of the second tubular member therein to define a joint region. The system further includes a compression sleeve configured to receive at least a portion of the first tubular member at the joint region and an energy source comprising a fiber laser configured to deliver energy to the joint region to thermally weld the first tubular member to the second tubular member. In some examples, the energy includes a wavelength of radiation transmittable through the compression sleeve and the first tubular member, and absorbable by the first tubular member and the second tubular member.

A system includes a first tubular member comprising a first polymer and a second tubular member comprising a second polymer. The first tubular member defines a lumen configured to receive at least a portion of the second tubular member therein to define a joint region. The system further includes a compression sleeve configured to receive at least a portion of the first tubular member at the joint region and an energy source comprising a fiber laser configured to deliver energy to the joint region to thermally weld the first tubular member to the second tubular member. In some examples, the energy includes a wavelength of radiation transmittable through the compression sleeve and the first tubular member, and absorbable by the first tubular member and the second tubular member.

The present invention relates to a polymer composition comprising a polypropylene and glass fiber. The polymer composition according to the present invention has a white or light color and superior preservation of impact resistance.

Disclosed herein are high melt flow polypropylene homopolymers generally characterized by a melt flow rate ranging from 200 g/10 min to 3000 g/10 min, a ratio of Mw/Mn ranging from 2 to 5, and a peak melting point ranging from 138° C. to 151° C. These polypropylene homopolymers can be produced by catalyst systems containing a racemic ansa-bis(indenyl)zirconocene compound, an activator-support, and an organoaluminum co-catalyst.

A polymer composition of polypropylene copolymer and 1 to 50% by weight of hard resin. The polypropylene copolymer is either an impact copolymer or a random copolymer. The polymer composition can be used to make injection stretch blow molded articles having improved top load strength.

Apparatus and methods for polymeric security seal parts having anti-microbial properties and for the production of such seal parts, are provided. The seal parts may be produced by molding a formulation that includes a polymeric base resin and also a quantity of microbicidal metal ion. The molding may be injection molding. The formulation may contain sufficient metal ion for molded seals to have microbicidal exterior surfaces, without compromising moldability of the formulation. The formulation may contain sufficient metal ion for molded seals to have microbicidal properties throughout the interior of their structures, without compromising the moldability of the formulation. The anti-microbial polymeric security seal parts may be marked with function-descriptive and/or identifying surface markings. The identifying surface markings may be unique to individual seal parts. The anti-microbial polymeric security seal parts may facilitate secure tamper-evident anti-microbial sealing of enclosures.

Propylene-based polymer resins and related compositions and processes are disclosed. The propylene polymer resins have high isotacticity and moderately high xylene soluble content. The polymer resins provide extruded sheets suitable for thermo forming that exhibit both sag resistance and ease of draw.