Claims
- 1. Aromatic thermoplastic polymer exhibiting improved heat distortion temperatures derived from:
- (i) a carbonate precorsor; and
- (ii) at least one spiro dihydric phenol selected from spiro dihydric phenols represented by the general formula ##STR11## wherein: R is independently selected from monovalent hydrocarbon radicals or halogen radicals; and
- n is independently selected from positive integers having a value of from 0 to 3 inclusive; and
- (iv) at least one difunctional carboxylic acid or an ester forming reactive derivative thereof.
- 2. The polymer of claim 1 wherein said difunctional carboxylic acid or an ester forming reactive derivative thereof is an aromatic dicarboxylic acid or an ester forming reactive derivative thereof.
- 3. The polymers of claim 2 wherein said aromatic dicarboxylic acid or an ester forming reactive derivative thereof is selected from isophthalic acid, terephthalic acid, mixtures thereof, or isophthaloyl dichloride, terephthaloyl dichloride, or mixtures thereof.
- 4. The polymer of claim 3 wherein said carbonate precursor is phosgene.
- 5. The polymer of claim 4 wherein said monovalent hydrocarbon radicals represented by R are selected from alkyl radicals, cycloalkyl radicals, aryl radicals, aralkyl radicals, or alkaryl radicals.
- 6. The polymer of claim 5 wherein said monovalent hydrocarbon radicals are selected from alkyl radicals.
- 7. The polymer of claim 4 wherein said spiro dihydric phenol is 3,3,3', 3'-tetramethyl-1,1'-spirobiindane-6,6'-diol.
- 8. The polymer of claim 1 which are derived from (i); (ii); (iv); and
- (iii) at least one non-spiro dihydric phenol represented by the general formula ##STR12## wherein: R.sup.1 is independently selected from monovalent hydrocarbon radicals or halogen radicals;
- a is independently selected from positive integers having a value of from 0 to 4 inclusive.
- d is either zero or one; and
- W is selected from non-spiro divalent hydrocarbon radicals, --S--, --O--, --S--S--, ##STR13##
- 9. The polymer of claim 8 wherein the amount of said spiro dihydric phenol of (ii) employed is an amount effective to improve the heat distortion temperatures of said polymer.
- 10. The polymer of claim 9 wherein said amount is at least about 3 mole percent, based on the total amounts of the spiro dihydric phenol of (ii) and the non-spiro dihydric phenol of (iii) employed.
- 11. The polymer of claim 9 wherein said monovalent hydrocarbon radicals represented by R are selected from alkyl radicals, cyclaolkyl radicals, aralkyl radicals, or alkaryl radicals.
- 12. The polymer of claim 9 wherein said non-spiro divalent hydrocarbon radicals represented by W are selected from alkylene radicals, cyclaolkylene radicals, alkylidene radicals, or cycloalkylidene radicals.
- 13. The polymer of claim 12 wherein said monovalent hydrocarbon radicals represented by R.sup.1 are selected from alkyl radicals, cycloalkyl radicals, aryl radicals, aralkyl radicals, or alkaryl radicals.
- 14. The polymer of claim 9 wherein said difunctional carboxylic acid or an ester forming reactive derivative thereof of (iv) is an aromatic dicarboxylic acid or an ester forming reactive derivative thereof.
- 15. The polymer of claim 14 wherein said aromatic dicarboxylic acid or an ester forming reactive derivative thereof is selected from isophthalic acid, terephthalic acid, mixtures thereof, or isophthaloyl dichloride, terephthaloyl dichloride, or mixtures thereof.
- 16. The polymer of claim 15 wherein said carbonate precursor is phosgene.
- 17. The polymer of claim 16 wherein said non-spiro dihydric phenol of (iii) is bisphenol-A.
- 18. The polymer of claim 17 wherein said spiro dihydric phenol of (ii) is 3,3,3', 3'-tetramethyl-1,1'-spirobiindane-6,6'-diol.
Parent Case Info
This is a division of copending application Ser. No. 544,004, filed Oct. 21, 1983, now U.S. Pat. No. 4,552,949.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4552949 |
Mark |
Nov 1985 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
544004 |
Oct 1983 |
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