Title: Soft copolyetheramides techniques at low-temp.
Application Number: 86100176 Application Date: 1986.01.14
Publication Number: 1010605 Publication Date: 1987.04.22
Approval Pub. Date: 1989.12.20 Granted Pub. Date: 1989.12.20
International Classifi-cation: C08G69/34;C08G69/40
Applicant(s) Name: Rhone-poulenc Specialites Chimiques Address:
Inventor(s) Name: Jean Coquard
Attorney & Agent: LUO YINGMING CHEN JIZHUANG
Abstract:
    Novel, homogeneous and flexible block copolyetheramides, having a melting point of at least 150 DEG C., a glass transition temperature not exceeding -5 DEG C. and a melt viscosity of at least 100 poises, are preferably prepared by prepolymerizing a mixture of a salt of a short-chain aliphatic dicarboxylic acid and a short-chain aliphatic diamine with a fatty acid(s) dimer or amino derivative thereof, and then polycondensing the prepolymer in the presence of a strong organic or inorganic oxyacid, with a polyoxyalkylenediamine or a polyoxyalkylenedicarboxylic acid having a number-average molecular weight ranging from 300 to 1200. The copolyetheramides is used in prefer in the application of industrial polymer with good soft of low temperature.
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