Provided herein is a non-naturally occurring microbial organism having a methanol metabolic pathway that can enhance the availability of reducing equivalents in the presence of methanol. Such reducing equivalents can be used to increase the product yield of organic compounds produced by the microbial organism, such as adipate, 6-aminocaproate, hexamethylenediamine or caprolactam. Also provided herein are methods for using such an organism to produce adipate, 6-aminocaproate, hexamethylenediamine or caprolactam.

A multilayer structure selected from a reservoir, a pipe or a tube, for transporting, distributing or storing hydrogen, including, from the inside to the outside, at least one sealing layer and at least one composite reinforcing layer, the innermost composite reinforcing layer being welded to the outermost adjacent sealing layer, the sealing layers including at least one semi-crystalline thermoplastic polymer, the Tm of which is less than 280° C., wherein the at least one thermoplastic polymer of each sealing layer may be the same or different, and at least one of the composite reinforcing layers being of a fibrous material in the form of continuous fibers impregnated with a composition of at least one thermoplastic polymer P2j, the thermoplastic polymer P2j having a Tg greater than the maximum temperature of use of said structure (Tu), with Tg≥Tu+20° C., Tu being greater than 50° C.

The present invention relates to copolyamides comprising 4-(aminomethyl)benzoic acid (4-AMBa). The present invention also relates to polymer compositions comprising such copolyamides, as well as articles comprising the same and methods of using said articles to prepare windows, clear containers for cosmetic products packaging or glass frames & lenses. The present invention also relates to the use of the copolyamide, as such or in a composition of matter, for the manufacture of three-dimensional objects using an additive manufacturing system, for example an extrusion-based manufacturing system.

The present disclosure provides a diamine compound, which includes a structure represented by formula (I). Formula (I) is defined as in the specification. The present disclosure further provides an amide bond-containing polymer, a polyimide, a polybenzoxazine, a thermosetting resin and a copolymerized thermosetting resin prepared by the diamine compound including the structure represented by formula (I).

The present disclosure provides a diamine compound, which includes a structure represented by formula (I). Formula (I) is defined as in the specification. The present disclosure further provides an amide bond-containing polymer, a polyimide, a polybenzoxazine, a thermosetting resin and a copolymerized thermosetting resin prepared by the diamine compound including the structure represented by formula (I).

The invention concerns a method for producing polyamide from an amino ester of formula NH.sub.2—(CH.sub.2).sub.n—COOR, in which R represents an alkyl group and n represents an integer ranging from 5 to 14, comprising: a first reaction step in the presence of water, at a first temperature; followed by a second reaction step at a second temperature higher than the first temperature.

The invention concerns a method for producing polyamide from an amino ester of formula NH.sub.2—(CH.sub.2).sub.n—COOR, in which R represents an alkyl group and n represents an integer ranging from 5 to 14, comprising: a first reaction step in the presence of water, at a first temperature; followed by a second reaction step at a second temperature higher than the first temperature.

A composition including a fluorine-containing polymer and a silicon-containing compound, wherein the phosphorus content in the composition is 20 ppm or less. Also disclosed is a molded article obtained from the composition, and a second composition containing a fluorine-containing polymer and a silicon-containing polymer, wherein a content of an amide solvent in the composition is less than 1000 ppm.

A composition including from: a) 35% to 100% by weight of at least one semicrystalline aliphatic polyamide and/or one polyamide of formula MXDZ wherein MXD is meta-xylylenediamine and Z is a C6 to C12 aliphatic dicarboxylic acid, the semicrystalline aliphatic polyamide and/or the polyamide of formula MXDZ having a total acidity between from 70 to 180 μeq/g and a total basicity of less than 100 μeq/g; b) 0 to 25% by weight of polyolefins; c) 0 to 60% by weight, of glass fibers; d) 0 to 2% by weight of at least one additive; e) 0 to 30% by weight of at least one flame retardant; the sum a)+b)+c)+d)+e) being equal to 100%, the semicrystalline aliphatic polyamide and/or the polyamide of formula MXDZ having a melt flow index (MFI) between from 4 to 50 g/10 min.

A composition including from: a) 35% to 100% by weight of at least one semicrystalline aliphatic polyamide and/or one polyamide of formula MXDZ wherein MXD is meta-xylylenediamine and Z is a C6 to C12 aliphatic dicarboxylic acid, the semicrystalline aliphatic polyamide and/or the polyamide of formula MXDZ having a total acidity between from 70 to 180 μeq/g and a total basicity of less than 100 μeq/g; b) 0 to 25% by weight of polyolefins; c) 0 to 60% by weight, of glass fibers; d) 0 to 2% by weight of at least one additive; e) 0 to 30% by weight of at least one flame retardant; the sum a)+b)+c)+d)+e) being equal to 100%, the semicrystalline aliphatic polyamide and/or the polyamide of formula MXDZ having a melt flow index (MFI) between from 4 to 50 g/10 min.