Claims
- 1. An aromatic polyphthalatecarbonate resin derived from:
- (a) dihydric phenol;
- (b) a carbonate precursor; and
- (c) a phthalate compound providing phthalate units, said phthalate compound being present at a level of 5 mole percent based on the combined total moles of carbonate precursor, phthalate compound and dihydric phenol.
- 2. An aromatic polyphthalatecarbonate resin comprising a polymer consisting essentially of the following moieties:
- (a) dihydric phenol derived moities present at a level of about 50 mole percent based on the total moles of moities present in said polymer, said dihydric phenol derived moities being represented by the formula: ##STR10## (b) carbonate moieties present at a level of about 45 mole percent based on the total moles of moieties present in said polymer, said carbonate moieties being represented by the formula: ##STR11## (c) phthalate moieties present at a level of 5 mole percent based on the total moles of moieties present in said polymer, said phthalate moieties being selected from the group consisting of terephthalate moieties represented by the formula: ##STR12## isophthalate moieties represented by the formula: ##STR13## and mixtures thereof.
- 3. The polyphthalatecarbonate of claim 1 wherein said phthalate compound is isophthaloyldichloride.
Parent Case Info
This is a continuation of application Ser. No. 07,266,980 filed Nov. 4, 1988, now abandoned.
US Referenced Citations (22)
Non-Patent Literature Citations (2)
Entry |
S. M. Cohen et al.; Transparent Ultraviolet14 Barrier Coatings; Journal of Polymer Science; Part A-1, vol. 9, 3263-3299; (1971). |
D. L. Love; How Polyarylates Resist Weathering; Modern Plastics; Mar. 1984, pp. 60-62. |
Continuations (1)
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Number |
Date |
Country |
Parent |
266980 |
Nov 1988 |
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