Copolymerized polyester amide resin

Abstract

Abstract PURPOSE:To prepare the titled resin having low water absorption and suitable as a heat-sensitive element of an electric blanket, etc., by the co-condensation of a hydrogenated polybutadiene having OH groups at both terminals and the polymer component of a polyamide through ester linkage. CONSTITUTION:The objective resin is prepared by bonding (A) a polyamide component having the recurring units of formulaI(n is 5-11) and formula II[X is CmH2m (m is 6-12), isophorone, phenylene, or cyclohexylene; Y is ClH2l (l is 4- 10), phenylene or cyclohexylene]with (B) the constituent unit of formula III (m is 1-36) through amide bond, and bonding the component (A) with (C) the constituent unit of formula IV (Z is polybutadiene residue having an average molecular weight of 500-10,000, hydrogenated at the double bonds and bonded with oxygen at the terminals) and the component (B) with the component (C) through ester bond. The amount of the component (C) in the composition is 1-80wt%, and molar ratio of the component (B) to the component (C) is 1 to 1.2-0.8.

Inventors

• 👤 Koichiro Arita
• 👤 有田　孝一郎
• 👤 Hajime Suzuki
• 👤 一 鈴木

Bibliographic Details