Heat resistant polymers and blends of hydroquinone poly (isotere

Details Heat resistant polymers and blends of hydroquinone poly (isotere Heat resistant polymers and blends of hydroquinone poly (isotere

1991-11-08

1994-03-22

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524601, 524604, 524605, 525444, 528176, 528179, 528180, 528193, C08F 2000, C08G 6300, C08G 6302

Patent

active

052965422

ABSTRACT:
This invention pertains to novel copolyesters consisting essentially of units (I), (II), (III), and (IV). ##STR1## 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.degree. to about 400.degree. C. and are melt-processible. Advantageously, these compositions filled with about 30 weight percent of glass fibers display heat distortion temperatures of over 240.degree. C. up to about 280.degree. 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.

REFERENCES:
patent: 3306875 (1967-02-01), Hay
patent: 4585823 (1986-04-01), Saito et al.
patent: 4626557 (1986-12-01), Duska et al.
patent: 4742149 (1988-05-01), Finestone
"The Chemistry of Cellulose and Wood" Aca. of Sci. USSR., Nikitin, pp. 62-71 (1966).

Affiliated with

Also associated with

Rating

Heat resistant polymers and blends of hydroquinone poly (isotere does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat resistant polymers and blends of hydroquinone poly (isotere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat resistant polymers and blends of hydroquinone poly (isotere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-437646