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US3558574A Expired / Lapsed US ⏱️ 0.0 years remaining

Acrylated adhesive products

Assignee: Permacel
•
Filing: 1968-12-09
•
Granted: 1971-01-26
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Expires: 1988-12-09
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Abstract

Abstract ARE COPOLYMERIZED IN A SUITABLE ORGANIC SOLVENT TO FORM A STABLE ADHESIVE COPOLYMER SOLUTIONS. A SUITABLE CROSSLINKING CATALYST, SUCH AS AN ORGANO-METALIC SALT CATALYST, THEN ADDED TO THE ADHESIVE SOLUTION JUST PRIOR TO COATING ON THE DESIRED BACKING SHEET AND THE C OPOLYMER IS CROSSLINKED IN SITU AS THE SHEET IS PROCEED. ACRYLATE PRESSURE-SENSITIVE ADHESIVE PRODUCTS BASED ON AN ADHESIVE COPOLYMER OF MONOMERS COMPRISING A MAJOR AMOUNT OF A MEDIUM CHAIN LENGTH ALKYL ACRYLATE MONOME, PREFERABLY A MINOR AMOUNT OF A COHESION INDUCING SHORT CHAIN MONOMER, A MINOR AMOUNT OF A SUBSTITUTED ACRYLAMIDE, ABOUT 0.5-5.0 PARTS BY WEIGHT OF THE TOTAL MONOMER SOLIDS, PREFERABLY ABOUT 1-3 PARTS OF THE TOTAL MONOMERS, OF MALEIC ENHYDRIDE, AND A VERY SMALL AMOUNT OF A POLYMERIZABLE CROSS-LINKING MONOMER. THE MONOMERS

Inventors

  • 👤 Donald F Doehnert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 05:31
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/30; C09J7/38; C09J7/381; C09J7/385; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1808; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2887; Y10T428/2891; Y10T428/31504; Y10T428/31786; Y10T428/31797

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) 1974-01-25 1974-07-27 1975-01-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-25 1978-07-27 1979-01-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-25 1982-07-27 1983-01-26 $7700.00 Window Closed / Lapsed

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