US PATENT SUBCLASS 987 / 110
.~ Quaternary phosphonium compounds (C)a-P-(H)b wherein a+b=4, a=1-4, b=1-3, (9/54; 9/54A1; 9/54A1+W; 9/54A1+W2)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


987 /   HD   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

30  DF  PHOSPHORUS COMPOUNDS (9/02; 9/06) {15}
110.~ Quaternary phosphonium compounds (C)a-P-(H)b wherein a+b=4, a=1-4, b=1-3, (9/54; 9/54A1; 9/54A1+W; 9/54A1+W2) {5}
111  DF  .~.~> Contains the structure aryl-(C)n-P where n is at least one (9/54A7)
112  DF  .~.~> Contains two or more phosphonium P atoms (9/54A6)
113  DF  .~.~> Contains the structure (aryl group*)-P where * indicates a direct bond between a carbon of the aryl ring and the P atom (9/54A4)
114  DF  .~.~> Contains the structure "carbocyclic ring"-P where "--" indicates that a ring carbon of the carbocyclic ring may or may not be bonded directly to the P atom (9/54A3)
115  DF  .~.~> Contains the structure "ethylenic group"-P where "--" indicates that a carbon of the ethylenic group may or may not be bonded directly to the P atom (9/54A2)

DEFINITION

Classification: 987/110

Quaternary phosphonium compounds (C)a-P-(H)b where a+b=4, a=1-4, b=1-3 (9/54; 9/54A1; 9/54A1+W; 9/54A1+W2):

(under subclass 30) Subject matter wherein the P compound contains the structure: (C)a-P-(H)b where a+b=4, a=1-3, b=1-3, i.e., phosphonium.