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US3573093A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for the antistatic treatment of plastic films

Assignee: Konica Minolta Inc
•
Filing: 1968-03-08
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Granted: 1971-03-30
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Expires: 1988-03-08
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Abstract

Abstract A PLASTIC FILM IS TREATED WITH A COPOLYMER. THE COPLYMER CONTAINS IN THE PRINCIPAL CHAIN THE RECURRING UNIT -CH(-CO-(NH)N-A-B)-CH(-COO-M)- WHEREIN A IS A SUBSTITUTED PHENYLENE, AN UNSUBSTITUTED PHENYLENE, A NAPHTHALENE RADICAL OR A RADICAL HAVING THE FORMULA-CHR, R BEING HYDROGEN, A SUBSTITUTED ALKYL, AN UNSUBSTITUTED ALKYL OR AN ARYL GROUP B IS -SO3M, -SO2M,-COOM,-PO3M2OR-PO2M2, M IS A CATION AND N IS 1 OR 2. TO PRODUCE THE ABOVE COPOLYMER, A COPOLYMER COMPRISING AS ITS COPOLYMERIZATION COMPONENT AN A,B-ETHYLENICALLY UNSATURATED MONOMER AND A MALEIC ACID DERIVATIVE IS REACTED WITH A COMPOUND WHICH IS CAPABLE OF FORMING WITH THE MALEIC ACID DERIVATIVE AN ACID AMIDE LINKAGE HAVING AT ITS TERMINAL END A PENDANT ACIDIC GROUP.

Inventors

  • 👤 Koji Oshibuchi
  • 👤 Masayoshi Mayama
  • 👤 Masao Ishihara
  • 👤 Osakazu Sugino

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 18:23
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08F8/34; C08F8/40; C08F8/44; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/044; G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/89; C08J2457/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-03-29 1974-09-28 1975-03-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-29 1978-09-28 1979-03-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-29 1982-09-28 1983-03-30 $7700.00 Window Closed / Lapsed

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