← Back to Patent Explorer
US3652631A Expired / Lapsed US ⏱️ 0.0 years remaining

O o'-diol bisperoxycarbonates

Assignee: PPG Industries Inc
•
Filing: 1969-11-19
•
Granted: 1972-03-28
•
Expires: 1989-11-19
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract DESCRIBED ARE DIESTERS OF DIOLS OF POLY(OXYALKYLENE) DIOLS AND TWO ACID PEROXYESTERS OF A MONOHYDRIC ALCOHOL AND CARBONIC ACID WHEREIN THE CARBONYL GROUPS OF THE PEROXYESTERS ARE ESTERIFIED WITH THE DIOL. THESE COMPOUNDS ARE REPRESENTED BY THE STRUCTURE R1-O-O-COO-R2-OOC-O-O-R3 R1 AND R3 ARE ORGANIC RADICALS HAVING UP TO 10 CARBON ATOMS AND R2 IS THE DIVALENT RADICAL OF A DIOL. METHOD OF THEIR PREPARATIONS INVOLVE REACTION OF A BISCHLOROFORMATE OF THE DIOL WITH AN ORAGNIC HYDROPEROXIDE. THESE COMPOUNDS AND COMPOSITIONS THEREOF WITH AN ORGANIC HYDROPEROXIDE AND/OR DIPEROXIDE ARE DESCRIBED. THE COMPOUNDS AND COMPOSITIONS ARE USEFUL FOR POLYMERIZING OLEFINICALLY UNSATURATED MONOMERS.

Inventors

  • 👤 Henry C Stevens
  • 👤 Hans J Wartmann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 21:20
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32; C07; C07C; C07C409/00; C07C409/38; C07C2601/00; C07C2601/12; C07C2601/14

Claims Analysis

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

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-03-28 1975-09-27 1976-03-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-03-28 1979-09-27 1980-03-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-03-28 1983-09-27 1984-03-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag