US3255128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellular polyurethane containing phosphatized aluminum flake
Assignee: Air Products and Chemicals Inc
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Filing: 1962-11-08
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Granted: 1966-06-07
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Expires: 1982-11-08
Abstract
No abstract record available.
Inventors
- 👤 Farkas Adalbert
- 👤 Harold A Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:14
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/009; C08J9/0066; C08K; C08K9/00; C08K9/02; C08J2375/00; C08J2375/04; C08J2375/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
THE METHOD OF PREPARING REFLECTIVE INSULATION WHICH INCLUDES THE STEPS OF: DISPERSING IN AT LEAST ONE OF THE GROUP OF TOLYLENE DIISOCYANATE AND A POLYOL SELECTED FROM THE GROUP CONSISTING OF POLYETHERPOLYOLS RESULTING FROM THE INTERACTION OF PROPYLENE OXIDE AND METHYL GLUCOSIDE AND POLYETHERPOLYOLS RESULTING FROM THE INTERACTION OF PROPYLENE OXIDE AND GLYCEROL, A QUANTITY OF PHOSPHATIZED ALUMINUM FLAKE CORRESPONDING TO FROM 0.5 TO 5% BY WEIGHT, SAID ALUMINUM FLAKE PREVIOUSLY HAVING BEEN TREATED WITH AN AQUEOUS SOLUTION OF PHSOPHORIC ACID TO PREPARE PHOSPHATIZED ALUMINUM FLAKE; BRINGING ABOUT THE INTERACTION OF THE TOLYLENE DIISOCYANATE AND POLYETHERPOLYOL IN THE PRESENCE OF A MINOR AMOUNT OF TRICHLOROFLUOROMETHANE UNDER CONDITIONS FAVORING THE FORMATION OF POLYURETHANE FOAM, SAID CONDITIONS VOLATIZING TRICHLOROFLUOROMETHANE TO FORM PORES IN SUCH FOAM; AND CURING THE REACTION PRODUCT TO PROVIDE REFLECTIVE INSULATION CONTAINING FROM 0.5 TO 5% BY WEIGHT OF PHOSPHATIZED ALUMINUM FLAKE DISPERSED IN POLYURETHANE FOAM.
Claim 2
Independent Claim
147 words
THE METHOD OF PREPARING REFLECTIVE INSULATION WHICH INCLUDES THE STEPS OF: DISPERSING IN AT LEAST ONE OF THE GROUP OF TOLYLENE DIISOCYANATE AND A POLYOL SELECTED FROM THE GROUP CONSISTING OF POLYETHERPOLYOLS RESULTING FROM THE INTERACTION OF PROPYLENE OXIDE AND METHYL GLUCOSIDE AND POLYETHERPOLYOLS RESULTING FROM THE INTERACTION OF PROPYLENE OXIDE AND GLYCEROL, A QUANTITY OF PHOSPHATIZED ALUMINUM FLAKE CORRESPONDING TO FROM 0.5 TO 5% BY WEIGHT, SAID ALUMINUM FLAKE PREVIOUSLY HAVING BEEN TREATED WITH AN AQUEOUS SOLUTION OF PHSOPHORIC ACID TO PREPARE PHOSPHATIZED ALUMINUM FLAKE; BRINGING ABOUT THE INTERACTION OF THE TOLYLENE DIISOCYANATE AND POLYETHERPOLYOL IN THE PRESENCE OF A MINOR AMOUNT OF TRICHLOROFLUOROMETHANE UNDER CONDITIONS FAVORING THE FORMATION OF POLYURETHANE FOAM, SAID CONDITIONS VOLATIZING TRICHLOROFLUOROMETHANE TO FORM PORES IN SUCH FOAM; AND CURING THE REACTION PRODUCT TO PROVIDE REFLECTIVE INSULATION CONTAINING FROM 0.5 TO 5% BY WEIGHT OF PHOSPHATIZED ALUMINUM FLAKE DISPERSED IN POLYURETHANE FOAM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |