The present invention relates to a polymer composition (C) comprising: —a polyphenylene sulfide (PPS), —at least 3 wt. % of polyamide 6 (PA6), —25 to 60 wt. % of reinforcing agents, —3 to 8 wt. % of a functionalized, non-aromatic elastomer, wherein the weight ratio PPS/PA6 is at least 4 and wherein wt. % are based on the total weight of the composition. The present invention also relates to articles incorporating the polymer composition and the use of polyamide 6 (PA6) as a heat-aging stabilizer in a polymer composition.

The invention discloses a preparation method of a catechol group modified biomacromolecular scaffold material, comprising: grafting a catechol-containing compound by amidation to obtain modified biomacromolecules; then, allowing dopamine to perform oxidized self-polymerization in a weakly alkaline buffer solution to form polydopamine (PDA) particles with a uniform particle size; next, forming a scaffold which has three cross-linking structures, namely modified biomacromolecules, modified biomacromolecules/PDA, and biomacromolecules/PDA, through interaction between catechol groups, interaction between catechol groups and PDA particles, and interaction between macromolecules and PDA particles in the modified macromolecules respectively; and cross-linking the scaffold with calcium ions, adipic dihydrazide or genipin to further adjust the degree of cross-linking and porosity of the scaffold. The prepared scaffold material has excellent biocompatibility and biodegradability, can promote cell adhesion, and has a wide application prospect in the field of tissue repair and regeneration.

The invention discloses a preparation method of a catechol group modified biomacromolecular scaffold material, comprising: grafting a catechol-containing compound by amidation to obtain modified biomacromolecules; then, allowing dopamine to perform oxidized self-polymerization in a weakly alkaline buffer solution to form polydopamine (PDA) particles with a uniform particle size; next, forming a scaffold which has three cross-linking structures, namely modified biomacromolecules, modified biomacromolecules/PDA, and biomacromolecules/PDA, through interaction between catechol groups, interaction between catechol groups and PDA particles, and interaction between macromolecules and PDA particles in the modified macromolecules respectively; and cross-linking the scaffold with calcium ions, adipic dihydrazide or genipin to further adjust the degree of cross-linking and porosity of the scaffold. The prepared scaffold material has excellent biocompatibility and biodegradability, can promote cell adhesion, and has a wide application prospect in the field of tissue repair and regeneration.

This document describes biochemical pathways for producing 7-aminoheptanoic acid using a β-ketoacyl synthase or a β-ketothiolase to form an N-acetyl-5-amino-3-oxopentanoyl-CoA intermediate. 7-aminoheptanoic acid can be enzymatically converted to pimelic acid, 7-hydroxyheptanoic acid, heptamethylenediamine or 1,7-heptanediol or corresponding salts thereof. This document also describes recombinant microorganisms producing 7-aminoheptanoic acid as well as pimelic acid, 7-hydroxyheptanoic acid, heptamethylenediamine and 1,7-heptanediol or corresponding salts thereof.

This document describes biochemical pathways for producing 7-aminoheptanoic acid using a β-ketoacyl synthase or a β-ketothiolase to form an N-acetyl-5-amino-3-oxopentanoyl-CoA intermediate. 7-aminoheptanoic acid can be enzymatically converted to pimelic acid, 7-hydroxyheptanoic acid, heptamethylenediamine or 1,7-heptanediol or corresponding salts thereof. This document also describes recombinant microorganisms producing 7-aminoheptanoic acid as well as pimelic acid, 7-hydroxyheptanoic acid, heptamethylenediamine and 1,7-heptanediol or corresponding salts thereof.

The invention provides non-naturally occurring microbial organisms having a 4-hydroxybutyrate pathway and being capable of producing 4-hydroxybutyrate, wherein the microbial organism comprises one or more genetic modifications. The invention additionally provides methods of producing 4-hydroxybutyrate or related products using the microbial organisms.

The invention provides non-naturally occurring microbial organisms having a 4-hydroxybutyrate pathway and being capable of producing 4-hydroxybutyrate, wherein the microbial organism comprises one or more genetic modifications. The invention additionally provides methods of producing 4-hydroxybutyrate or related products using the microbial organisms.

A method for producing a polycondensate powder dispersion, characterised in that it includes at least one step of polycondensation: i) of at least one diester and at least one diamine, and/or ii) at least one amino ester, while stirring, in a solvent that can solubilise both the diamine and the diester and/or the amino ester but not the polyamide that forms during the polycondensation, at a temperature between 30° C. and the boiling temperature of the solvent, in order to produce a powder precipitate dispersed in the solvent.

A method for producing a polycondensate powder dispersion, characterised in that it includes at least one step of polycondensation: i) of at least one diester and at least one diamine, and/or ii) at least one amino ester, while stirring, in a solvent that can solubilise both the diamine and the diester and/or the amino ester but not the polyamide that forms during the polycondensation, at a temperature between 30° C. and the boiling temperature of the solvent, in order to produce a powder precipitate dispersed in the solvent.

A process of forming a resveratrol-based flame retardant small molecule with a phosphonate/phosphinate molecule that includes a chloride group and a terminal functional group.