The invention relates to cross-linkable thermoplastics, processes of making such cross-linkable thermoplastics and products comprising such cross-linkable thermoplastics. Such cross-linkable thermoplastics provide articles made by the additive manufacturing (AM) process with increased strength, the desired in use temperature stability and the desired thermo-oxidative stability.

There is provided a curable compound having good solvent solubility and being capable of forming a cured material having super heat resistance. The curable compound according to the present invention is represented by the following formula (1). In the formula (1), R.sup.1 and R.sup.2 each represent a curable functional group; D.sup.1 and D.sup.2 each represent a single bond or a linking group; and L represents a divalent group having a repeating unit containing a structure represented by the following formula (I) and a structure represented by the following formula (II) (wherein Ar.sup.1 to Ar.sup.3 each represent a group made by eliminating two hydrogen atoms from a structural formula of an aromatic ring or a group made by eliminating two hydrogen atoms from a structural formula in which two or more aromatic rings are bound through a single bond or a linking group; X represents —CO—, —S— or —SO.sub.2—; each Y represents —S—, —SO.sub.2—, —O—, —CO—, —COO— or —CONH—; and n represents an integer of 0 or more): ##STR00001##

There is provided a curable compound having good solvent solubility and being capable of forming a cured material having super heat resistance. The curable compound according to the present invention is represented by the following formula (1). In the formula (1), R.sup.1 and R.sup.2 each represent a curable functional group; D.sup.1 and D.sup.2 each represent a single bond or a linking group; and L represents a divalent group having a repeating unit containing a structure represented by the following formula (I) and a structure represented by the following formula (II) (wherein Ar.sup.1 to Ar.sup.3 each represent a group made by eliminating two hydrogen atoms from a structural formula of an aromatic ring or a group made by eliminating two hydrogen atoms from a structural formula in which two or more aromatic rings are bound through a single bond or a linking group; X represents —CO—, —S— or —SO.sub.2—; each Y represents —S—, —SO.sub.2—, —O—, —CO—, —COO— or —CONH—; and n represents an integer of 0 or more): ##STR00001##

The invention relates to bis(aniline) compounds containing multiple arylethynyl, alkylethynyl, ethynyl groups or their combinations, processes of making such compounds and materials comprising such compounds. Such, bis(aniline) compounds preferably comprise multiple phenylethynyl (PE) groups, i.e. 2-4 PE moieties. Such compounds are useful monomers for the preparation of polyimides, polyamides and poly(amide-imides) whose post-fabrication crosslinking chemistry (i.e. reaction temperature) can be controlled by the number of PE per repeat unit as well as finding utility in thermosetting matrix resins, 3D printable resins, and as high-carbon-content precursors to carbon-carbon composites.

A polymerizable composition, a prepolymer, a phthalonitrile resin, or a composite provided herein has excellent heat resistance and does not cause defects that may adversely affect physical properties. In addition, the polymerizable composition exhibits appropriate curing properties, processing temperatures and process windows and to be capable of forming a composite of excellent physical properties.

A polymerizable composition, a prepolymer, a phthalonitrile resin, or a composite provided herein has excellent heat resistance and does not cause defects that may adversely affect physical properties. In addition, the polymerizable composition exhibits appropriate curing properties, processing temperatures and process windows and to be capable of forming a composite of excellent physical properties.

A composition contains: a compound including at least one group selected from the group consisting of a group represented by formula (1-1), a group represented by formula (1-2), and a group represented by formula (1-3); and a solvent. In formulae (1-1) to (1-3), * and ** each denote a site bonding to a part other than the group represented by the formulae (1-1) to (1-3) in the compound; and a and b are each independently an integer of 0 to 3. In a case in which a is 0, b is no less than 1, and in a case in which a is no less than 1, b is 0.

##STR00001##

A composition contains: a compound including at least one group selected from the group consisting of a group represented by formula (1-1), a group represented by formula (1-2), and a group represented by formula (1-3); and a solvent. In formulae (1-1) to (1-3), * and ** each denote a site bonding to a part other than the group represented by the formulae (1-1) to (1-3) in the compound; and a and b are each independently an integer of 0 to 3. In a case in which a is 0, b is no less than 1, and in a case in which a is no less than 1, b is 0.

##STR00001##

Compounds of formula (I), wherein the substituents are as defined in claim 1, and agrochemically acceptable salts and enantiomers thereof, can be used as insecticides. ##STR00001##

Compounds of formula (I), wherein the substituents are as defined in claim 1, and agrochemically acceptable salts and enantiomers thereof, can be used as insecticides. ##STR00001##