Patent ID: 10400068

Abstract:
Polyamide elastomer comprising reaction product of components (a), (b), (c), (d). Component (a) has formula HOOC—R1—(—NH—CO—R1—)n—NH2 (where each R1 independently is linear saturated hydrocarbon, n represents a real number of 0 or greater, and when there are multiple repeating units each containing R1, n represents total number of those repeating units). Component (b) has formula HOOC—R2—COOH (where R2 represents a direct bond or a linear saturated hydrocarbon group). Component (c) has formula H2N—R4—(—O—R4—)m—NH2 (where each R4 independently represents a saturated hydrocarbon group; m represents a real number of ≥1; and when there are multiple repeating units each containing R4, m represents total number of those repeating units). Component (d) has formula H2N—[—CH(CH3)CH—O—]x—[CH2CH2O—]y—[CH2CH(CH3)—O]z—CH2CH(CH3)(NH2) wherein (x+z) is a real number of 1 to 6 and y is a real number of 1 to 20. A molar ratio of (c)/(d) in the polyamide elastomer ranges from 9/1 to 1/9.