POLYMER COMPOSITIONS AND PROCESSING THEREOF

Provided are compositions comprising a polymer and a solvent, which may be used for e.g. gel-processing. An example is a composition comprising a polyethylene polymer and a vegetable oil. The solvent may be a fairly poor solvent for the polymer. 1. A composition comprising a polymer and a solvent for the polymer , whereinthe polymer has an elongational stress F(150/10) of at least 0.15 MPa,the polymer is a polyolefin, andthe composition has a crystallization temperature that is less than 10° C. lower than the crystallization temperature of the polymer.2. The composition of claim 1 , wherein the solvent comprises a vegetable oil.3. The composition according to any one of - claim 1 , wherein the solvent is a liquid or paste at 25° C.4. The composition according to any one of - claim 1 , wherein the solvent is selected from the group of solvents that shows less than 5 wt % weight decrease in a TGA measurement from 25° C. to 250° C.5. The composition according to any one of - claim 1 , wherein the polymer has an elongational stress F(150/10) of at least 0.2 MPa.6. The composition according to any one of - claim 1 , wherein the polymer has an elongational stress F(150/10) of less than 0.6 MPa.7. The composition according to any one of - claim 1 , wherein the polymer has a weight average molecular weight of at least 2000 kg/mol.8. The composition according to any one of - claim 1 , wherein the polymer has a weight average molecular weight of less than 15000 kg/mol.9. The composition according to any one of - claim 1 , wherein the polymer has a weight average molecular weight of less than 10000 kg/mol.10. The composition according to any one of - claim 1 , wherein the polymer is a polyolefin.11. The composition according to any one of - claim 1 , wherein the polymer is polyethylene.12. The composition according to any one of - claim 1 , wherein the polymer comprises up to 10 wt % claim 1 , relative to the total weight of the polymer claim 1 , of co-monomer.13. The ...

Melt-processible Poly(tetrafluoroethylene)

Melt-processible, thermoplastic poly(tetrafluoroethylene) (PTFE) compositions are disclosed and methods for making and processing same. Additionally, products comprising these compositions are described.

Polymer articles, methods and dies for making the same

Provided are dies (300, 600, 1000) having a first section for orienting material being pressed through the die (300, 600, 1000) and a second section for shaping the oriented material into a desired form. In an embodiment, the surface area for shaping the oriented material into a desired form is limited Also provided are polymer articles and processes for making the same. In an embodiment, the processes employ the dies (300, 600, 1000).

Method for microstructuring polymer-supported materials

A method is provided for microstructuring polymer-supported materials. Also provided are microstructured objects obtained with this method. The micro-structured objects are suitable for use, among other things, as light polarizers, transflectors, microelectrode arrays, and liquid-crystal alignment layers.

Melt-processible poly(tetrafluoroethylene)

This invention relates to compositions of melt-processible poly(tetrafluoroethylene) (PTFE) and methods for making the same. More particularly, the present invention relates to a particular range of poly(tetrafluoroethylene) polymer which are readily melt-processible while maintaining good mechanical properties.

Melt-processible poly(tetrafluoroethylene)

This invention relates to compositions of melt-processible poly(tetrafluoroethylene) (PTFE) and methods for making the same. More particularly, the present invention relates to a particular range of poly(tetrafluoroethylene) polymer which are readily melt-processible while maintaining good mechanical properties.

Melt-processible poly(tetrafluoroehtylene)

Melt-processible, thermoplastic poly(tetrafluoroethylene) (PTFE) compositions are disclosed and methods for making and processing same. Additionally, products comprising these compositions are described.

Polymer compositions and processing thereof

Provided are compositions comprising a polymer and a solvent, which may be used for e.g. gel-processing. An example is a composition comprising a polyethylene polymer and a vegetable oil. The solvent may be a fairly poor solvent for the polymer.

Melt-processible poly(tetrafluoroethylene)

Melt-processible poly(tetrafluoroethylene)

Melt-processible poly(tetrafluoroethylene)

Melt-processible, thermoplastic poly(tetrafluoroethylene) (PTFE) compositions are disclosed and methods for making and processing same. Additionally, products comprising these compositions are described.

Melt-processible poly(tetrafluoroethylene)

The present invention provides melt-processible poly(tetrafluoroethylene) polymers having a peak melting temperature above 315 °C and good mechanical properties at room temperature and at elevated temperatures, for instance a strain at break (25 °C) of at least 125 % and a tensile strength (150 °C) of at least 7 MPa, both determined at a strain rate of 100/min.

Verfahren zur herstellung von artikeln aus schmelzen von copolymeren des tetrafluorethylen

Sintern von ultrahochmolekularem polyethylen

Schmelzverarbeitbares polytetrafluorethylen