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 2000487
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. Advantageously, the polymers of the present invention display a significant improvement in viscosity and moldability of the neat polymer. The polymers have excellent mechanical and surface properties including blister resistance, strength, toughness, and ability to vapor phase solder, and form strong fibers while still maintaining a high heat distortion temperature. They have melting points in the range of from about 250 to about 360°C and are melt-processible. Advantageously, these compositions filled with about 30 weight percent of glass fibers display heat distortion temperatures of up to 240°C, when measured under a load of 264 psi. The polymers may be blended to tailor properties. These polymers and blends may be used advantageously in producing fibers and in electrical equipment, electronic components and other end uses requiring moderately 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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