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US3690938A Expired / Lapsed US ⏱️ 0.0 years remaining

Remoistenable adhesive composition for prepasted wall coverings

Assignee: Primary Products Ingredients Americas LLC
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Filing: 1970-11-18
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Granted: 1972-09-12
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Expires: 1990-11-18
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Abstract

Abstract A REMOISTENABLE ADHESIVE COMPOSITION PARTICULARLY USEFUL FOR PREPASTED WALL COVERINGS WHICH INCLUDES A DRY BLEND OF A WATER SOLUBLE LOW VISCOSITY STARCH, A LOW VISCOSITY CELLULOSE MATERIAL SUCH AS HYDROXYETHYL CELLULOSE, CARBOXYMETHYL CELLULOSE OR METHYL CELLULOSE ETHER, AND A PLASTICIZER SUCH AS SODIUM NITRATE, UREA, CALCIUM CHLORIDE, GLYCERIN OR SODIUM METHACRYLATE. THE ABOVE BLEND MAY ALSO INCLUDE AN EXTENDER MATERIAL SUCH AS SODIUM METHACRYLATE OR A CLAY, OR BOTH IN COMBINATION. THE ADHESIVE IS NOT DISTURBED BY FURTHER HANDLING AND CAN BE APPLIED TO THE WALL COVERING EITHER BEFORE OR AFTER PRINTING THE DECORATIVE SURFACE. THE WALL COVERINGS TREATED WITH THIS ADHESIVE ARE EASILY APPLIED WHEN REMOISTENED, BECAUSE THEY HAVE GOOD "SLIP" PROPERTIES. THEY ARE ALSO EASILY REMOVED AFTER INSTALLATION WITHOUT THE USE OF STEAM OR OTHER STRIPPING AGENTS, SIMPLY BY PULLING THE COVERING AWAY FROM THE UNDERSURFACE.

Inventors

  • 👤 Thomas G Swift

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 05:05
CPC Classifications
C; C09; C09J; C09J105/00

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) 1975-09-12 1976-03-13 1976-09-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-09-12 1980-03-13 1980-09-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-09-12 1984-03-13 1984-09-12 $7700.00 Window Closed / Lapsed

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