公开(公告)号：IT1015103B

公开(公告)日：1977-05-10

申请号：IT2403374

申请日：1974-06-17

Applicant: SNIA VISCOSA

Inventor： BIGGIO A ,  SICLARI F

IPC: C08G20060101 ,  C08G

公开(公告)号：IT956245B

公开(公告)日：1973-10-10

申请号：IT2364372

申请日：1972-04-27

Applicant: SNIA VISCOSA

Inventor： SICLARI F ,  ALO B ,  BIGGIO A

IPC: C08G63/688 ,  C08K5/42 ,  D01F

Abstract: Polyesters esp. PET are obtd. by copolymerising a bior oxycarboxylic acid, or their ester-forming deriv., and an aliphatic glycol with an aromatic cpd. of general formula: (where m and n are each 1 or 2, Ar is an aromatic e.g. phenylene and naphthylene substd. by sulphonic gp(s). and M is H or alkali(ne earth) metal). The colours obtd. are brilliant and have outstanding fastness to washings.