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US3699086A Expired / Lapsed US ⏱️ 0.0 years remaining

Photo-crosslinkable esters of beta-substituted alpha-cyanacrylic acids and process for their manufacture

Assignee: Kalle GmbH and Co KG
•
Filing: 1969-03-19
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Granted: 1972-10-17
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Expires: 1989-03-19
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Abstract

Abstract THE PRESENT INVENTION RELATES TO ESTERS OF B-SUBSTITUTED A-CYANACRYLIC ACIDS OBTAINED BY THE CONVERSION OF POLYHYDRIC ALCOHOLS, FOR EXAMPLE POLYVINYL ALCOHOLS, WITH B-SUBSTITUTE A-CYANACRYLIC ACID CHLORIDES, FOR EXAMPLE BENZYLIDENE-A-CYANACETIC ACID CHLORIDE, WITH THE EXCLUSION OF SHORT WAVE-LENGTH LIGHT, WHICH ESTER ARE CROSSLINKABLE ON EXPOSURE TO RADIATION. THE ESTERS ARE USED FOR THE MANUFACTURE OF PHOTOCROSSLINKABLE LAYER LAYERS, COATINGS AND SHAPED ARTICLES.

Inventors

  • 👤 Albrecht Moschel
  • 👤 Walter Luders
  • 👤 Hartmut Steppan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 04:14
CPC Classifications
C; C07; C07C; C07C255/00; C08; C08F; C08F8/00; C08F8/14; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G59/1461; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388

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) 1975-10-17 1976-04-17 1976-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-17 1980-04-17 1980-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-17 1984-04-17 1984-10-17 $7700.00 Window Closed / Lapsed

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