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US3051609A Expired / Lapsed US ⏱️ 0.0 years remaining

Process of treating polyolefincoated paper

Assignee: Individual
•
Filing: 1960-07-25
•
Granted: 1962-08-28
•
Expires: 1980-07-25
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Abstract

No abstract record available.

Inventors

  • 👤 Elihu D Grossmann
  • 👤 Robert E Myers

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 22:19
CPC Classifications
D; D21; D21C; D21C5/00; D21C5/02; D21C5/022; B; B29; B29D; B29D7/00; B29D7/01; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/64

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 222 words
THE PROCESS OF TREATAING PAPER COATED WITH A POLYOLEFIN HAVING A MONOMER UNIT OF THE CLASS CONSISTING OF ETHEYLENE, PROPYLENE, 1-BUTENE, 2-BUTENE AND ISOBUTENE TO SEPARATE SAID POLYOLEFIN AS A FILM FROM THE PAPER, WHICH COMPRISES IMMERSING AND AGITATING SAID POLYOLEFIN COATED PAPER IN THE FORM OF CHIPS IN A LIQUID COMPOSITSION AT A TEMPERATURE BETWEEN 35*C. AND 65*C., ESSENTIALLY CONSISTING OF A MIXTURE OF (1) CARABON DISULFIDE BETWEEN 15 AND 85%, (2) A WATER MISCIBLE LIQUID ALCOHOL OF A FIRST CLASS CONSISTING OF METHYL ALCOHOL, ETHYL ALCOHOL, NORMAL PROPYL ALCOHOL, PROPYL ALCOHOL , TERTIARY BUTYL ALCOHOL, ALLYL ALCOHOL, PROPARGYL ALCOHOL, AND ETHYLENE GLYCOL BETWEEN 5 TO 50%, (3) A LIQUID OF A SECOND CLASS CONSISTING OF HALOGEN SUBSTITUTED SATURAATAED AND UNSATURATED STRAAIGHT AND BRANCHED CARBON CHAIN COMPOUNDS OF A CARBON CHAIN LENGHT BETWEEN 1 AND 6 CARBON ATOMS, BENZENE, HALOGEN SUBSTITUTED BENZENES, TOLUENE, HALOGEN SUBSTITUTED TOLUENENS, XYLENE, HALOGEN SUBSTITUTED XYLENES AND HYDROGENATED NAPHTHALENES BETWEEN 5 AND 50% AND (4) FROM 020 TO 10 PERCENT OF WATER, SAID LIQUID COMPOSITION OPERATING SYNERGISTICALLY TO SWELL AND PERMEATE WITHOUT DISSOLVING THE POLYETHYLENE AND STO SWEEL THE FIBERS OF THE PAPER, AND BREAK DOWN THE BOND OF ADHESION BETWEEN THE POLYOLEFIN AND THE PAPER FIBERS, THEN REMOVING SAID LIQUID COMPOSITION FROM THE PAPER AND SEPARATE POLYOLEFIN FILM, AND FINALLY SEPARATING THE POLYOLEFIN FILM AND PAPER.
Claim 2
Dependent Claim 222 words
THE PROCESS OF TREATAING PAPER COATED WITH A POLYOLEFIN HAVING A MONOMER UNIT OF THE CLASS CONSISTING OF ETHEYLENE, PROPYLENE, 1-BUTENE, 2-BUTENE AND ISOBUTENE TO SEPARATE SAID POLYOLEFIN AS A FILM FROM THE PAPER, WHICH COMPRISES IMMERSING AND AGITATING SAID POLYOLEFIN COATED PAPER IN THE FORM OF CHIPS IN A LIQUID COMPOSITSION AT A TEMPERATURE BETWEEN 35*C. AND 65*C., ESSENTIALLY CONSISTING OF A MIXTURE OF (1) CARABON DISULFIDE BETWEEN 15 AND 85%, (2) A WATER MISCIBLE LIQUID ALCOHOL OF A FIRST CLASS CONSISTING OF METHYL ALCOHOL, ETHYL ALCOHOL, NORMAL PROPYL ALCOHOL, PROPYL ALCOHOL , TERTIARY BUTYL ALCOHOL, ALLYL ALCOHOL, PROPARGYL ALCOHOL, AND ETHYLENE GLYCOL BETWEEN 5 TO 50%, (3) A LIQUID OF A SECOND CLASS CONSISTING OF HALOGEN SUBSTITUTED SATURAATAED AND UNSATURATED STRAAIGHT AND BRANCHED CARBON CHAIN COMPOUNDS OF A CARBON CHAIN LENGHT BETWEEN 1 AND 6 CARBON ATOMS, BENZENE, HALOGEN SUBSTITUTED BENZENES, TOLUENE, HALOGEN SUBSTITUTED TOLUENENS, XYLENE, HALOGEN SUBSTITUTED XYLENES AND HYDROGENATED NAPHTHALENES BETWEEN 5 AND 50% AND (4) FROM 020 TO 10 PERCENT OF WATER, SAID LIQUID COMPOSITION OPERATING SYNERGISTICALLY TO SWELL AND PERMEATE WITHOUT DISSOLVING THE POLYETHYLENE AND STO SWEEL THE FIBERS OF THE PAPER, AND BREAK DOWN THE BOND OF ADHESION BETWEEN THE POLYOLEFIN AND THE PAPER FIBERS, THEN REMOVING SAID LIQUID COMPOSITION FROM THE PAPER AND SEPARATE POLYOLEFIN FILM, AND FINALLY SEPARATING THE POLYOLEFIN FILM AND PAPER.

References Cited (Backward Citations)

US1083234A Cited
US1993362A Cited
US1988363A Cited
US2703754A Cited
US2872313A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-08-27 1966-02-26 1966-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-08-27 1970-02-26 1970-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-08-27 1974-02-26 1974-08-28 $7700.00 Window Closed / Lapsed

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