Hubbell, Cohen, Stiefel & Gross
Thermoplastic polyester resin, production of same, and orthopedic cast material produced therefrom
 New thermoplastic polyester resins having a low melting point which are useful as a molding material, especially as an orthopedic cast material; said resin having the formula (I): EQU [A].sub.1 [B].sub.m [C].sub.n (I) where A denotes a residue of a straight or branched aliphatic dicarboxylic acid having 4 to 12 or 36 carbon atoms; B denotes a residue of a straight or branched aliphatic diol having 2 to 18 carbon atoms; C denotes a residue of 6-hydroxycaproic acid; these residues are linked through the ester bond and distributed randomly and/or in block in the molecule; 1, m, and n each has a value greater than 0; the residue of the 6-hydroxycaproic acid is 60 to 98 wt % and the sum of the residues of the aliphatic dicarboxylic acid and aliphatic diol is 40 to 2 wt %; the residue of the aliphatic dicarboxylic acid and the residue of the aliphatic diol are present in equimolar amount; and having a number-average molecular weight of 5,000 to 200,000. 
Daicel Chemical Industries, Inc.
C A C Y
C08G A61L C08G Y10T
inventional inventional inventional additional
Shoji Michio
Watanabe Nakanishi