Patent US3637581A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3637581A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of making chromogen-bonded-polymer and products thereof

Assignee: Individual
•
Filing: 1967-08-04
•
Granted: 1972-01-25
•
Expires: 1987-08-04
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A METHOD OF MAKING A METAL PHTHALOCYANINE-BONDEDPOLYMER COMPRISING DIAZOTIZING TRIAMINO METAL PHTHALOCYANINE IN AQUEOUS MEDIUM CONTAINING HYDROCHLORIC ACID IN A QUANTITY WHICH EXCEEDS ITS THEORETICAL QUANTITY BY AT LEAST 10 MOLES PER ONE AMINO RADICAL TO PRODUCE THE DIAZOTIZED PRODUCT COMPRISING DIAZOTIZED TRIAMINO METAL PHTHALOCYANINE, STABILIZING THE DIAZOTIZED PRODUCT WITH A STABLIZIER TO PRODUCE THE STABILIZED DIAZO COMPOUND, MIXING THE STABILIZED DIAZO COMPOUND WITH AN ADDITIONPOLYMERIZABLE MONOMER AND POLYMERIZING SAID MONOMER USING THE STABILIZED DIAZO COMPOUND AS AN INITIATOR FOR THE POLYMERIZING TO FORM THE METAL PHTHALOCYANNINEBONDED-POLYMER AND METAL PHTHALOCYANINE-BONDEDPOLYMER MADE THEREBY.

Inventors

  • 👤 Shojiro Horiguchi
  • 👤 Michiei Nakamura

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 10:15
CPC Classifications
C; C09; C09B; C09B69/00; C09B69/10; C09B69/108; C08; C08F; C08F4/00; C08F4/04; C09B47/00; C09B47/04; C09B47/08; C09B68/00; C09B68/20; C09B68/24; Y; Y10; Y10S; Y10S534/00; Y10S534/03

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) 1975-01-24 1975-07-26 1976-01-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-01-24 1979-07-26 1980-01-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-01-24 1983-07-26 1984-01-25 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag