Patent ID: 11911954
Assignee: SOLVAY SPECIALTY POLYMERS USA, LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  G  H  Y | IPC B  G

Claim 16:
17. The method of claim 16, wherein the semi-crystalline polyamide (A) is a polycondensation of (a) mixtures (M1) selected from the group consisting of:
(b) mixtures of 1,6-diaminohexane and adipic acid;
(c) mixtures of 1,4-diaminobutane and adipic acid;
(d) mixtures of 1,5-diaminopentane and adipic acid;
(e) mixtures of adipic acid, terephthalic acid, and 1,6-diaminohexane, wherein the amount of the terephthalic acid is at least 25% moles, with respect to the moles of the diacid (DA);
(f) mixtures of terephthalic acid, isophthalic acid, and 1,6-diaminohexane, wherein the amount of the terephthalic acid is at least 55% moles, with respect to the moles of the diacid (DA);
(g) mixtures of adipic acid, terephthalic acid, isophthalic acid, and 1,6-diaminohexane, wherein the amount of the terephthalic acid is at least 55% moles, with respect to the moles of the diacid (DA); least one diamine comprising ethereal bonds (NNE), optionally in combination with one or more than one aliphatic diamines;
(h) mixtures of adipic acid optionally further comprising minor amounts of isophthalic acid, terephthalic acid, or mixtures thereof with respect to the diacid (DA), and at least one diamine comprising ethereal bonds (NNE), optionally in combination with one or more than one aliphatic diamines;
(i) mixtures of adipic acid and at least one diacid comprising ionisable groups (IDA), the diacid comprising ionisable groups (IDA) representing at most 15% moles of the total diacid (DA) moles, and 1,6-diaminohexane;
(j) mixtures of terephthalic acid and at least one diacid comprising ionisable groups (IDA), the diacid comprising ionisable groups (IDA) representing at most 15% of the total diacid (DA) moles, and 1,6-diaminohexane;
(k) mixtures of 1,4-cyclohexanedicarboxylic acid and at least one diamine comprising ethereal bonds (NNE), optionally in combination with one or more than one aliphatic diamines; and
(l) mixtures of 1,4-cyclohexanedicarboxylic acid and at least one diacid comprising ionisable groups (IDA), the diacid comprising ionisable groups (IDA) representing at most 15% moles of the total diacid (DA) moles, and at least one diamine comprising ethereal bonds (NNE), optionally in combination with one or more than one aliphatic diamines.