Abstract: A PEKK polymer powder, having a d0.9-value less than 150 ?m, wherein the PEKK polymer has a Td(1%) of at least 500° C., as measured by thermal gravimetric analysis according to ASTM D3850, heating from 30° C. to 800° C. under nitrogen using a heating rate of 10° C./min. A method for producing a PEKK powder for the use in a method for manufacturing a 3D object, in which the PEKK has a Td(1%) of at least 500° C., as measured by thermal gravimetric analysis according to ASTM D3850, heating from 30° C. to 800° C. under nitrogen using a heating rate of 10° C./min, and the powder has been manufactured by grinding from a coarser powder and has a d0.9-value less than 150 ?m, as measured by laser scattering in isopropanol.

Abstract: A method for the reuse of PEKK-based carbon fiber reinforced polymer composites is provided. Chips obtained by comminuting the carbon fiber-reinforced PEKK composite material are melt mixed with a virgin poly(aryletherketone) polymer to provide carbon fiber-reinforced poly(aryletherketone) compositions. Molded articles having good mechanical properties can be prepared from the carbon fiber-reinforced poly(aryletherketone) compositions.

Abstract: Disclosed are methods of decreasing the concentration of a metal in a monomer composition including a bis(benzoyl)benzene, bis(benzoyl)benzene monomer compositions having a low total metal concentration, di-ketone polymers made from low metal bis(benzoyl)benzene monomers, and polymer compositions and shaped articles including the di-ketone polymers. It was surprisingly found that di-ketone polymers made by nucleophilic substitution of low metal bis(benzoyl)benzene monomers exhibit greater crystallinity, as compared with di-ketone polymers made with conventional monomers.

Abstract: Blend (B) comprising: at least one aromatic polycarbonate (P1), and at least one polyarylene (P2), more than 50 wt. % of the recurring units thereof are optionally substituted arylene groups [recurring units (R2)], each of said recurring units (R2) being linked by each of its two ends to two other optionally substituted arylene groups via a direct C—C linkage, and said recurring units (R2) being a mix (M) consisting of: between 0 and 75 mole %, based on the total number of moles of recurring units (R2), of rigid rod-forming arylene units (R2a), optionally substituted by at least one monovalent substituting group, with between 25 and 100 mole %, based on the total number of moles of recurring units (R2), of kink-forming arylene units (R2b), optionally substituted by at least one monovalent substituting group. Article or part of an article comprising the blend (B).

Abstract: The present invention provides transgenic plant and methods of using them. In one embodiment, the methods include growing a transgenic plant under certain conditions, such as stress conditions, such as drought, heat, or salt, where the plant has decreased expression of a SUT polypeptide compared to a control plant. The transgenic plant may have a phenotype of increased growth, increased formation of woody tissue, increased drought tolerance, increased water use efficiency, increased nitrogen utilization efficiency, or a combination thereof, compared to the control plant. In another embodiment, the methods include using a transgenic plant to produce a pulp.

Abstract: Use of a kinked rigid-rod polyarylene of a particular type for its fire resistance properties.

Abstract: Use of a kinked rigid-rod polyarylene of a particular type for its fire resistance properties.

Abstract: Use of at least one kinked rigid-rod polyarylene of a specific type for its fire resistance properties. Films and coatings consisting of a material comprising the same kinked rigid-rod polyarylene.

Abstract: The present invention relates to a new aromatic polyimide composition containing an aromatic polyimide and a polyarylene of a specific type, and to articles and parts of articles made thereof.

Abstract: Blend (B) comprising: at least one aromatic polycarbonate (P1), and at least one polyarylene (P2), more than 50 wt. % of the recurring units thereof are optionally substituted arylene groups [recurring units (R2)], each of said recurring units (R2) being linked by each of its two ends to two other optionally substituted arylene groups via a direct C—C linkage, and said recurring units (R2) being a mix (M) consisting of: between 0 and 75 mole %, based on the total number of moles of recurring units (R2), of rigid rod-forming arylene units (R2a), optionally substituted by at least one monovalent substituting group, with between 25 and 100 mole %, based on the total number of moles of recurring units (R2), of kink-forming arylene units (R2b), optionally substituted by at least one monovalent substituting group. Article or part of an article comprising the blend (B).

Abstract: Use of at least one kinked rigid-rod polyarylene of a specific type for its fire resistance properties. Films and coatings consisting of a material comprising the same kinked rigid-rod polyarylene.

Abstract: Blend (B) comprising: at least one aromatic polyimide (P1), and at least one polyarylene (P2), more than 50 wt. % of the recurring units thereof are optionally substituted arylene groups [recurring units (R2)], each of said recurring units (R2) being linked by each of its two ends to two other optionally substituted arylene groups via a direct C—C linkage, and said recurring units (R2) being a mix (M) consisting of: between 0 and 75 mole %, based on the total number of moles of recurring units (R2), of rigid rod-forming arylene units (R2a), optionally substituted by at least one monovalent substituting group, with between 25 and 100 mole %, based on the total number of moles of recurring units (R2), of kink-forming arylene units (R2b), optionally substituted by at least one monovalent substituting group. Article or part of an article comprising the blend (B).