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US2764566A Expired / Lapsed US ⏱️ 0.0 years remaining

Polyisocyanate-alkyd resin-substituted polymethylol phenol cellular compositions

Assignee: Lockheed Martin Corp
•
Filing: 1953-03-16
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Granted: 1956-09-25
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Expires: 1973-03-16
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Abstract

No abstract record available.

Inventors

  • 👤 Simon Eli
  • 👤 Frank W Thomas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 00:34
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/66; C08G18/6633; C08G18/6637; C08G18/664; C08G18/6644; C08G18/30; C08G18/32; C08G18/3203; C08G18/3215; C08G18/40; C08G18/42; C08G18/4263; C08G18/67; C08G18/675; Y; Y10; Y10S; Y10S264/00; Y10S264/17

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 161 words
THE CELLULAR PLASTIC MATERIAL WHICH COMPRISES THE REACTION PRODUCT OF AN ALKYD RESIN HAVING AN ACID NUMBER OF FROM APPROXIMATELY 1 TO 30 AND WHEREIN THE HYDROXYL AND CARBOXYL GROUPS IN THE ALKYD RESIN REACTANTS ARE IN THE RATIO OF 4(OH):1(COOH) TO 1 1/2(OH):1COOH), A POLYMETHYLOL PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2,4,6 TRIMETHYLOL ALLYLOXY BENZENE; 2,4,6 TRIMETHYLOL METHOXY BENZENE; 2,4,6 TRIMETHYLOL BUTOXY BENZENE; 2,4,6 TRIMETHYLOL ISOPROPOXY BENZENE; AND TRIMETHYLOL PHENOL IN THE PROPORTION OF FROM 20 TO 200 PARTS BY WEIGHT TO EACH 100 PARTS BY WEIGHT OF THE RESIN, AND FROM 65 TO 165 PARTS BY WEIGHT TO EACH 100 PARTS BY WEIGHT TOTAL OF THE RESIN AND POLYMETHYLOL PHENOLIC COMPOUND OF A POLYISOCYANATE SOLUTION CONTAINING META-TOLUENE DIISOCYANATE AND FROM 0.03 GRAM TO 15 GRAMS OF ETHYL CELLULOSE FOR EACH 100 GRAMD OF THE METAL-TOLUENE DIISOCYANATE, THE ETHYL CELLULOSE HAVING AN ETHOXYL CONTENT OF FROM 43% TO 50% AND A VISCOSITY OF FROM 7 TO 200 CENTIPOISES.

References Cited (Backward Citations)

US2432148A Cited
US2577281A Cited
US2591884A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1959-09-25 1960-03-26 1960-09-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1963-09-25 1964-03-26 1964-09-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1967-09-25 1968-03-26 1968-09-25 $7700.00 Window Closed / Lapsed

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