C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 67/02 (2006.01) C08J 5/00 (2006.01) C08K 3/22 (2006.01) C08K 3/26 (2006.01) C08K 3/30 (2006.01) C08K 3/34 (2006.01)
Patent
CA 2625894
A heat-shrinkable tube is made of a novel thermoplastic polyester blend which comprises component (A) from 5 to 95 wt %, based upon the total weight of components (A) and (B), of homopolymerized or copolymerized polyethylene terephthalate (PET) with an intrinsic viscosity of from 0.8 to 1.2 dl/g; and component (B) from 95 to 5 wt %, based upon the total weight of components (A) and (B), of polytrimethylene terephthalate (PTT) with an intrinsic viscosity of from 0.8 to 1.2 dl/g; and the heat-shrinkable tube after heating in hot water has a shrinkage from 5% to 15% in machine direction (MD) and a shrinkage greater than 35% in transverse direction (TD).
Kirby Eades Gale Baker
Nan Ya Plastics Corporation
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