Claims
- 1. An oxydiphthalic ester of the formula ##STR17## wherein each Z is independently H, or an alkyl group of 1-12 carbon atoms, X is F, Cl, or Br, and X' is H, F, Cl, or Br.
Parent Case Info
This is a continuation in part of application Ser. No. 07/621,412, filed Dec. 3, 1990, now U.S. Pat. No. 5,089,631; which is a division of application Ser. No. 07/492,196, filed Mar. 13, 1990, now U.S. Pat. No. 5,003,086; which is a division of application Ser. No. 07/352,070, filed May 15, 1989, now U.S. Pat. No. 4,943,642.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3879428 |
Heath et al. |
Apr 1975 |
|
4697023 |
Schwartz et al. |
Oct 1986 |
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Foreign Referenced Citations (1)
Number |
Date |
Country |
2416594 |
Dec 1983 |
DEX |
Non-Patent Literature Citations (8)
Entry |
Kolesnikov, G. S. et al Volsokomol. Soyed, A9, 612-18 (1967). |
Marvel, C. S. et al, J. Am. Chem. Sco., 80, 1197 (1958). |
Lavrova, Z. N. et al, Volokna Sin. Polim., 15-24, (1970). |
Tilika et al., Synthesis of Carboxylic Acids of Aromatic Sulfides Latv. PSR Zinat. Akad. Vestis, Kim. Ser.(2), 201-4, 1982 (CA 97(7):55412U. |
Pebalk et al, Spin Density Distribution . . . Dikl. Akad. Nauk, SSR, 244(5), 1169-73 (Phys. Chem.) 1979 (CA 90(23):186029c. |
Pebalk et al, Electron-acceptor Properties of Aromatic Dianhydrides Dokl. Akad. Nauk, SSR, 236(6), 1379-82 (Chem.) 1977 (CA 88(19):135960a. |
Erglis et al, (USSR Patent No. 395,358) CA 89(9):48007m (1974). |
Govindachari et al, Chemical Abstracts, vol. 67 (1967) 54088m. |
Divisions (2)
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Number |
Date |
Country |
Parent |
492196 |
Mar 1990 |
|
Parent |
352070 |
May 1989 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
621412 |
Dec 1990 |
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