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US3808288A Expired / Lapsed US ⏱️ 0.0 years remaining

Pressure-sensitive adhesives based on epihalohydrin polymer and polyketone resins

Assignee: Kendall Co
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Filing: 1971-12-06
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Granted: 1974-04-30
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Expires: 1991-12-06
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Abstract

Abstract PRESSURE-SENSITIVE SOLVENT RESISTANT ADHESIVES ARE DISCLOSED WHICH CONSISTS ESSENTIALLY OF AN EPIHALOHYDRIN POLYMER AND A THERMOPLASTIC POLYKETONE RESIN COMPRISING THE CONDENSATION PRODUCT OF AN ALIPHATIC KETONE HAVING A TOTAL OF 3 TO 6 CARBON ATOMS; A MONOARYL ALKYL KETONE HAVING FROM 6 TO 10 RING CARBON ATOMS IN THE ARYL GROUP AND FROM 1 TO 4 CARBON ATOMS IN THE ALKYL GROUP; AND ALIPHATIC KETONE HAVING A TOTAL OF 3 TO 6 CARBON ATOMS WITH A LOWER ALIPHATIC ALDEHYDE, A MONOARYL ALKYL KETONE HAVING FROM 6 TO 10 RING CARBON ATOMS IN THE ARYL GROUP AND FROM 1 TO 4 CARBON ATOMS IN THE ALKYL GROUP WITH A LOWER ALIPHATIC ALDEHYDE; OR A CARBOCYCLIC KETONE HAVING 3 TO 7 RING CARBON ATOMS WITH A LOWER ALIPHATIC ALDEHYDE.

Inventors

  • 👤 R Hackhel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 03:07
CPC Classifications
C; C09; C09J; C09J171/00; C09J171/02; C08; C08L; C08L61/00; C08L61/02; C08L71/00; C08L71/02; C09J161/00; C09J161/02; C09J7/00; C09J7/20; C09J7/30; C09J7/38

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) 1977-04-29 1977-10-29 1978-04-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-04-29 1981-10-29 1982-04-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-04-29 1985-10-29 1986-04-30 $7700.00 Window Closed / Lapsed

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