Cross-linker

A compound comprising at least one residue according to formula (IV),

• wherein the waved line indicates the point of attachment to the rest of the compound;
• “Ak” is a C1-10 alkyl or C0-1 alkylene cyclohexyl;
• “A” is “O” (oxygen);
• and
• R3 is OH, OC1-C8 alkyl, NH2, NHC1-8 alkyl, N(C1-8 alkyl)2, wherein said alkyl may be the same or different, OC0-1 alkylenephenyl, NHC0-1 alkylenephenyl,
• wherein the waved line indicates the point of attachment to the rest of the compound, or
• wherein the waved line indicates the point of attachment to the rest of the compound;
• and
• wherein said compound is an oligo- or polyester.

A composition comprising:

• an oligo- or polyamide, said oligo- or polyamide comprising:
• a) a residue according to formula (III) or (IV),
• wherein the waved line indicates the point of attachment to the rest of the oligo- or polyamide;
• “Ak” is a C1-10 alkyl or C0-1 alkylene cyclohexyl;
• “A” is NH;
• R3 is OH, OC1-08 alkyl, NH2, NHC1-8 alkyl, N(C1-8 alkyl)2, wherein said alkyl may be the same or different, 000-1 alkylenephenyl, NHC0-1 alkylenephenyl, or
• wherein the waved line indicates the point of attachment to the rest of the oligo- or polyamide;
• and
• b) at least 10 residues of a monomer selected from the group consisting of hexamethylene diamine, pentamethylene diamine, 2,2,4-trimethyl-hexamethylene diamine, 2,4,4-trimethyl-hexamethylene diamine, 1,4-diaminobutane, 1,2-diaminobenzene, 1,3-diaminobenzene, and 1,4-diaminobenzene, and at least 10 residues of a monomer selected from the group consisting of oxalic acid, maloic acid, adipic acid, sebacic acid, isophthalic acid, terephthalic acid, and 2,5-furandicarboxylic acid;
• or
• at least 10 residues of a monomer selected from the group consisting of caprolactame, 11-aminoundecanoic acid, 12-aminodecanoic acid, and aminocaproic acid;
• said oligo- or polyamide being present in an amount corresponding to at least 10 wt %;
• and
• a compound according to formula XX
• wherein “Ak” is C1-10 alkyl or C0-1 alkylene cyclohexyl;
• and
• Q is selected from the group consisting of C2-12 alkylene, phenylene, C1-4 alkylene-phenylene-C1-4 alkylene, or C0-4 alkylene-cyclohexandiyl-C0-4 alkylene;
• said compound according to formula XX being present in an amount corresponding to at least 1 wt %;
• a compound according to formula (I) or (II)
• wherein
• R1 and R2 are independently selected from the group consisting of OH, halo, OC1-08 alkyl, NH2, NHC1-8 alkyl, N(C1-8 alkyl)2, wherein said alkyl may be the same or different, OC(O)C1-8 alkyl, OC0-1 alkylenephenyl, and NHC0-1 alkylenephenyl;
• “Ak” is a C1-10 alkyl or C0-1 alkylene cyclohexyl;
• and
• “X” is selected from the group consisting of “O” (oxygen), NH, NCl alkylenephenyl, and NC1-8 alkyl;
• or “X” is Nphenyl;
• and/or
• an additional polymer, and/or at least one filler, reinforcement, pigment, external flame retardant, stabilizer, and/or plasticizer.