C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/1334, 402/20
C08L 67/00 (2006.01) C08G 63/60 (2006.01) C08G 63/83 (2006.01)
Patent
CA 2000474
This invention pertains to novel copolyesters consisting essentially of units (I), (II), (III), and (IV). Image Image (I) (II) Image Image (III) (IV) and blends of these polymers and articles made from both. Units (I), (II), (III), and (IV) are present in specified proportions as defined in the "Description of the Invention." The instant copolyesters display orientation in the molten state, good fiber ratings and high strength; they have melting points in the range of from about 340 to about 400°C and are melt-processible. Advantageously, these compositions filled with about 30 weight percent of glass fibers display heat distortion temperatures of over 240°C up to about 280°C and higher, when measured under a load of 264 psi. When blended, certain properties are improved, particularly they are easier to melt fabricate, have a decreased tendency to blister and increased strength. These polymers and blends may be used advantageously in ovenware, electronic components, electrical equipment, and other end uses requiring high temperatures.
Cleary James William
Frayer Paul David
Huspeni Paul Joseph
Layton Richard
Matzner Markus
Gowling Lafleur Henderson Llp
Solvay Advanced Polymers L.l.c.
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