The present invention relates to a novel synthesis route that can be used to access novel statistical, aliphatic-aromatic copolyamides, by means of ring-opening polymerisation and chain-growth polycondensation, as well as to the resulting copolymers.

The present invention relates to a novel synthesis route that can be used to access novel statistical, aliphatic-aromatic copolyamides, by means of ring-opening polymerisation and chain-growth polycondensation, as well as to the resulting copolymers.

A process for the production of a masterbatch (M) which includes at least one lactam and at least one fiber material is provided herein. Also described herein is the masterbatch (M) and a polymerizable two-component system (pS), as well as a process for the production of a polyamide (P), the use of the masterbatch (M) for the production of the polyamide (P), and the polyamide (P). A molding made of the polyamide (P) is also described.

A process for the production of a masterbatch (M) which includes at least one lactam and at least one fiber material is provided herein. Also described herein is the masterbatch (M) and a polymerizable two-component system (pS), as well as a process for the production of a polyamide (P), the use of the masterbatch (M) for the production of the polyamide (P), and the polyamide (P). A molding made of the polyamide (P) is also described.

The present invention relates to a process for preparing a thermoplastic copolymer from polycaprolactam and thermoplastic polyurethane (TPU), to thermoplastic copolymers thus obtained and to shaped articles formed from copolymers of this type.

The present invention relates to a process for preparing a thermoplastic copolymer from polycaprolactam and thermoplastic polyurethane (TPU), to thermoplastic copolymers thus obtained and to shaped articles formed from copolymers of this type.

Formulation systems usable for fabricating a three-dimensional object made of a polyamide-containing material, by three-dimensional 3D inkjet printing, and methods and systems utilizing same, are provided. The formulation systems are formed of at least a first and second model formulations containing a lactam and a catalyst for inducing anionic ring opening polymerization of the lactam in the first formulation, and an activator for promoting anionic ring opening polymerization of the lactam in the second formulation, and are further characterized as: including in the first and/or second formulation a compound capable of increasing a rate of said polymerization upon exposure to said curing energy; including as an activator a lactam-blocked polyisocyanate; and/or as including in the first model formulation at least one material capable of reducing a melting point of said first model formulation. Formulation systems usable at a selected ratio are also provided.

Formulation systems usable for fabricating a three-dimensional object made of a polyamide-containing material, by three-dimensional 3D inkjet printing, and methods and systems utilizing same, are provided. The formulation systems are formed of at least a first and second model formulations containing a lactam and a catalyst for inducing anionic ring opening polymerization of the lactam in the first formulation, and an activator for promoting anionic ring opening polymerization of the lactam in the second formulation, and are further characterized as: including in the first and/or second formulation a compound capable of increasing a rate of said polymerization upon exposure to said curing energy; including as an activator a lactam-blocked polyisocyanate; and/or as including in the first model formulation at least one material capable of reducing a melting point of said first model formulation. Formulation systems usable at a selected ratio are also provided.

Polymerizable composition comprising a) at least one cyclic amide, b) from 1.6 to 5.0% by weight, preferably from 1.8 to 3.5% by weight, of at least one blocked polyisocyanate, and c) from 0.8 to 2.0% by weight of at least one catalyst for the polymerization of the cyclic amide and d) from 0.1 to 0.8% by weight, preferably from 0.3 to 0.6% by weight, of the dye C.I. Solvent Black 7, where the weight data for components a) to d) are based on the entirety of components a) to d), and the entirety of components a) to d) provides 100%.

The present invention relates to novel compositions for production of cast polyamides.