Patent US3700695A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3700695A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluorinated tetrahydro-pyrans

Assignee: Hooker Chemical Corp
•
Filing: 1969-10-16
•
Granted: 1972-10-24
•
Expires: 1989-10-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract There are described new compositions of matter having the following general formula WHEREIN N IS FROM 0 TO 1, WHEREIN ONE OF THE R''s is selected from the group consisting of fluorine, alkyl, cycloalkyl, aryl, perfluoroalkyl, perfluorocycloalkyl and perfluoroaryl, wherein another one of the R''s may be selected from the group consisting of alkyl and perfluoroalkyl, wherein the remaining R''s are selected from the group consisting of hydrogen and fluorine, provided that at least one of the R''s contains fluorine or is fluorine, s is a number from 1 to 3 inclusive, and M is a substance selected from the group consisting of fluorine, chlorine, bromine, iodine, cyano, alkylcarbonyloxy, arylcarbonyloxy, cycloalkylcarbonyloxy, alkylsulfonyloxy, cycloalkylsulfonyloxy, arylsulfonyloxy, phosphinylidynetrioxy, phosphinidynetrioxy, alkoxyphosphinidenedioxy, dialkoxyphosphinoxy, aryloxyphosphinidenedioxy, diaryloxyphosphinoxy, alkylphosphinylidenedioxy, arylphosphinylidenedioxy, sulfonyl and sulfinyl. The preparation of these compounds and their uses in improving the clarity of plastic films and as herbicides are also described.

Inventors

  • 👤 Russell L K Carr
  • 👤 Charles F Baranauckas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 03:31
CPC Classifications
C; C07; C07D; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C07D307/00; C07D307/02; C07D307/04; C07D307/18; C07D307/20

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US2831000A Cited
US2962523A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-24 1976-04-24 1976-10-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-24 1980-04-24 1980-10-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-24 1984-04-24 1984-10-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag