A mechanically and piezoelectrically anisotropic polymer thin film is formed from a crystallizable polymer and an additive configured to interact with the polymer to facilitate chain alignment and, in some examples, create a higher crystalline content within the polymer thin film. The polymer thin film and its method of manufacture may be characterized by a bimodal molecular weight distribution where the molecular weight of the additive may be less than approximately 5% of the molecular weight of the crystallizable polymer. Example polymers may include vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, hexafluoropropylene, and vinyl fluoride. Example additives may occupy up to approximately 60 wt. % of the polymer thin film. The polymer thin film may be characterized by a piezoelectric coefficient (d.sub.31) of at least approximately 5 pC/N or an electromechanical coupling factor (k.sub.31) of at least approximately 0.1.

Provided is a method for producing a CaSi.sub.2-containing composition, the method including: a molten metal step of adding Ca and/or M (M is at least one element selected from elements of groups 3 to 9) to a CaSi.sub.2-containing composition containing crystalline silicon to prepare a molten metal containing Ca, M and Si that satisfy the following condition: when a molar ratio of Ca, M and Si is x:y:z (x+y+z=100), x, y and z satisfy 23<x100/3, 0<y<10 and 64<z200/3, respectively; and a cooling step of cooling the molten metal to obtain a CaSi.sub.2-containing composition containing a reduced amount of crystalline silicon.

Provided is a method for producing a CaSi.sub.2-containing composition, the method including: a molten metal step of adding Ca and/or M (M is at least one element selected from elements of groups 3 to 9) to a CaSi.sub.2-containing composition containing crystalline silicon to prepare a molten metal containing Ca, M and Si that satisfy the following condition: when a molar ratio of Ca, M and Si is x:y:z (x+y+z=100), x, y and z satisfy 23<x100/3, 0<y<10 and 64<z200/3, respectively; and a cooling step of cooling the molten metal to obtain a CaSi.sub.2-containing composition containing a reduced amount of crystalline silicon.

The present invention relates to a post-processing apparatus configured to post-process latex, the post-processing apparatus including: a receiving tank having therein a receiving part and having an inlet port through which the latex is introduced into the receiving part and a discharge port through which the latex is discharged; an ultrasonic wave generating device configured to generate ultrasonic waves to the latex accommodated in the receiving tank; a pressure reducing part configured to reduce a pressure of the receiving part of the receiving tank to discharge an unreacted monomer to the outside of the receiving tank; and a partition part provided in the receiving part of the receiving tank and comprising a plurality of partitions disposed in a direction from the inlet port toward the discharge port of the receiving tank, in which the latex accommodated in the receiving part moves along upper and lower sides of the plurality of partitions.

The present invention relates to a post-processing apparatus configured to post-process latex, the post-processing apparatus including: a receiving tank having therein a receiving part and having an inlet port through which the latex is introduced into the receiving part and a discharge port through which the latex is discharged; an ultrasonic wave generating device configured to generate ultrasonic waves to the latex accommodated in the receiving tank; a pressure reducing part configured to reduce a pressure of the receiving part of the receiving tank to discharge an unreacted monomer to the outside of the receiving tank; and a partition part provided in the receiving part of the receiving tank and comprising a plurality of partitions disposed in a direction from the inlet port toward the discharge port of the receiving tank, in which the latex accommodated in the receiving part moves along upper and lower sides of the plurality of partitions.

A polymer film comprises a polymer composition containing (A) a cyclic olefin polymer containing an olefin unit having a C.sub.3-10alkyl group as a side chain thereof and (B) a chlorine-containing polymer. The chlorine-containing polymer (B) may comprise a vinylidene chloride-series polymer. The ratio of the chlorine-containing polymer (B) relative to 100 parts by weight of the cyclic olefin polymer (A) may be 0.5 to 60 parts by weight. The film has a moderate releasability from an electrolyte membrane and an electrode membrane of a polymer electrolyte fuel cell and a moderate adhesion to the electrolyte membrane and the electrode membrane and can adhere to a commonly-used substrate film without interposition of an adhesive layer such as an easily adhesive layer. The film is thus suitable as a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell.

A polymer film comprises a polymer composition containing (A) a cyclic olefin polymer containing an olefin unit having a C.sub.3-10alkyl group as a side chain thereof and (B) a chlorine-containing polymer. The chlorine-containing polymer (B) may comprise a vinylidene chloride-series polymer. The ratio of the chlorine-containing polymer (B) relative to 100 parts by weight of the cyclic olefin polymer (A) may be 0.5 to 60 parts by weight. The film has a moderate releasability from an electrolyte membrane and an electrode membrane of a polymer electrolyte fuel cell and a moderate adhesion to the electrolyte membrane and the electrode membrane and can adhere to a commonly-used substrate film without interposition of an adhesive layer such as an easily adhesive layer. The film is thus suitable as a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell.

The subject matter discloses a composite material comprising a first component and a second component, the first component comprising an organic element and a thermoplastic element and the second component comprising at least one element selected from the group consisting of vulcanized rubber and tire cords. The subject matter further discloses a process comprising mixing while heating under shear forces a first component comprising organic waste and thermoplastic waste with a second component comprising at least one element selected from the group consisting of vulcanized rubber and tire cords; to obtain a melt; processing the melt, the processing comprises at least cooling the melt to obtain a composite material comprising: organic element; thermoplastic element; and at least one element selected from the group consisting of vulcanized rubber and tire cords.

The subject matter discloses a composite material comprising a first component and a second component, the first component comprising an organic element and a thermoplastic element and the second component comprising at least one element selected from the group consisting of vulcanized rubber and tire cords. The subject matter further discloses a process comprising mixing while heating under shear forces a first component comprising organic waste and thermoplastic waste with a second component comprising at least one element selected from the group consisting of vulcanized rubber and tire cords; to obtain a melt; processing the melt, the processing comprises at least cooling the melt to obtain a composite material comprising: organic element; thermoplastic element; and at least one element selected from the group consisting of vulcanized rubber and tire cords.

A novel hot-melt adhesive and a preparation method thereof are disclosed, and in particular a hot-melt adhesive for bonding aluminum, stainless steel or other metal materials and PVC plastics is disclosed. The specific nylon-type copolyamide is firstly prepared by designing specific raw materials and percentage thereof, and in combination with favorable bonding properties of the nylon-type copolyamide for metals and favorable bonding characteristics of the perchloroethylene resin for PVC, a double screw extruder is utilized to perform sufficient melt blending on the nylon-type copolyamide and the perchloroethylene resin under the synergistic actions of related aids, so that the obtained novel hot-melt adhesive has favorable bonding properties for both metals and PVC.