Claims
- 1. In a polycarbonate resin based on the reaction product of a fluorine-free aromatic diol and a carbonic acid derivative the improvement comprising:
- a fluorinated difunctinal phenolic compound represented by the structural formula: ##STR3## co-reacted in said reaction product.
- 2. A polycarbonate resin of claim 1, wherein said fluorinated difunctional phenolic compound is co-reacted in said reaction product in an amount sufficient to improve the heat distortion temperature of said polycarbonate resin.
- 3. The polycarbonate resin of claim 2, having therein up to 10 percent by weight of said fluorinated difunctional phenolic compound co-reacted in said reaction product.
- 4. The polycarbonate resin of claim 3, having co-reacted therein at least 2.5 percent by weight of the fluorinated difunctional phenolic compound.
- 5. A polycarbonate comprising a copolycarbonate resin which is the reaction product of:
- (a) a fluorine-free aromatic diol;
- (b) a fluorinated difunctional phenolic compound represented by the structural formula: ##STR4## and; (c) a member selected from the group consisting of carbonyl bromide, phosgene, bischloroformic esters of (a) or (b) and diaryl carbonates.
- 6. The polycarbonate of claim 5, wherein said aromatic diol is bisphenol A.
- 7. The polycarbonate of claim 5, wherein said fluorinated difunctional phenolic compound is present at up to a level of 10 percent by weight based on the total weight of aromatic diol.
- 8. The polycarbonate of claim 7, wherein said fluorinated difunctional phenolic compound is present at a level of at least 2.5 percent.
- 9. A method of preparing a polycarbonate resin reacting:
- (a) a fluorine-free aromatic diol; and
- (b) a fluorinated difunctional phenolic compound represented by the structural formula: ##STR5## with (c) a member selected from the group consisting of carbonyl bromide, phosgene, bischloroformic esters of (a) or (b) and diaryl carbonates.
- 10. The method of claim 9, wherein said aromatic diol is bisphenol A.
- 11. The method of claim 9, wherein said fluorinated difunctional phenolic compound is reacted at a level of up to 10 percent by weight based on the total weight of diol incorporated into the copolymer.
- 12. The method of claim 11, wherein said fluorinated difunctional phenolic compound is incorporated into said copolymer at a level of at least 2.5 percent by weight.
- 13. A thermoplastic injection moldable polycarbonate comprising the synthesis product of 2,2-bis(4-hydroxyphenyl)-propane and between about 2.5 and 10 wt. % of 2,2-bis(4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoropropane and a member selected from the group consisting of carbonyl bromide, phosgene, bischloroformic ester of 2,2-bis(4-hydroxyphenyl)-propane, bischloroformic ester of 2,2-bis(4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoropropane and diaryl carbonates.
Parent Case Info
This application is a continuation-in-part of our copending application Ser. No. 86,891 filed Oct. 22, 1979, now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (2)
Number |
Date |
Country |
965085 |
Jul 1964 |
GBX |
1141716 |
Jan 1969 |
GBX |
Non-Patent Literature Citations (2)
Entry |
Polycarbonates, Christopher and Fox, Reinhold Publishing Corporation, N.Y. 1962. |
Yakubovich et al., Thermally Stable Fluorine-Containing Aromatic Esters and Polycarbonates, C.A., vol. 55, p. 11369, 1961. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
86891 |
Oct 1979 |
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