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Class Information
Number: 987/37
Name: Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system > Phosphorus compounds (9/02; 9/06) > Compound contains a ring which is devoid of a metal atom and contains at least one p atom as ring member (9/6564; 9/6564v; 9/6568; 9/6568b; 9/6568c; 9/6568d; 9/6568e; 9/6568f) > Ring contains o and p only, or may include in addition to the required o and p, only c (9/6571)
Description: Subject matter wherein the ring contains only phosphorus and oxygen atoms or phosphorus and oxygen and additional atoms only of carbon.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4980275 |
Photographic material and process comprising a dye stabilizer |
Dec. 25, 1990 |
| 4959441 |
Alkenylphosphonic and -phosphinic acid esters, process for their preparation, hydrogels produced using them, and their use |
Sep. 25, 1990 |
| 4958034 |
Alkenyl succinic anhydrides process |
Sep. 18, 1990 |
| 4590017 |
2,4-bis-(2,6-di-t-alkyl-4-substituted-phenoxy)-1 ,3,2,4-dioxadiphosphetanes |
May. 20, 1986 |
| 4552825 |
Phosphorous diketonate electron accepting ring compounds as sensitizers for electron donating photoconductive compositions |
Nov. 12, 1985 |
| 4515733 |
Method for making 1,3,5,2,4,6-trioxatriphosphorinanes |
May. 7, 1985 |
| 4507416 |
2,4,6-Tris(substituted phenoxy)-1,3,5,2,4,6-trioxatriphosphorinanes as stabilizers |
Mar. 26, 1985 |
| 4496730 |
Phosphorous diketonate electron accepting ring compounds as sensitizers for electron donating photoconductive compositions |
Jan. 29, 1985 |
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