US3277048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic fire-retardant, highpolymer, epoxide resin composition
Assignee: Dow Chemical Co
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Filing: 1961-01-16
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Granted: 1966-10-04
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Expires: 1981-01-16
Abstract
No abstract record available.
Inventors
- 👤 Lawrence F Sonnabend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:35
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/621; C08G59/20; C08G59/22; C08G59/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
294 words
A MOLDABLE THERMOPLASTIC SELF-EXTINGUISHING SOLID RESIN COMPOSITION, HAVING A TENSILE STRENGTH OF AT LEAST ABOUT 7000 POUNDS PER SQUARE INCH, A PERCENT ELONGATION OF AT LEAST ABOUT 3.5, A TENSILE MODULUS OF AT LEAST ABOUT 4.0X10** POUNDS PER SQUARE INCH, AN IMPACR RESISTANCE OF AT LEAST ABOUT 1.5 FOOT POUNDS PER INCH OF NOTCH, A ROCKWELL HARDNESS OF AT LEAST ABOUT 50, A DIELECTRIC CONSTANT AT 10.5 CYCLES POUND SECOND OF AT LEAST ABOUT 3.5 MICRO-MICROFARADS, A HEAT DISTORATION TEMPERATURE OF AT LEAST ABOUT 190*F., AND A MOLECULAR WEIGHT OF AT LEAST ABOUT 30,000 WHICH CONSISTS ESSENTIALLY OF THE REACTION PRODUCT OF (1) A DEGLYCIDYL ETHER HAVING AN AVERAGE OF ABOUT TWO TERMINAL OXIRANE GROUP PER MOLECULE, PREPARED BY REACTING EPICHLOROHYDRIN WITH AN HYDROXY COMPOUND SELECTED FROM THE CLASS CONSISTING OF 4,4''-ISOALKYLIDENEBIS(2,6-DIBROMOPHENOL), 4,4''-ISOALKYLIDENENEBIS(2,6-DICHLOROPHENOL), 4,4''-METHYLENEBIS(2,6-DIBROMOPHENOL), 4,4''-ISOALKYLIDENEBIS(BROMOPHENOL), 4,4''-METHYLENEBIS(2,6-DICHLOROPHENOL), 4,4''-METHYLENE-BIS(2,6-DIBROMOPHENOL), 4,4''-METHYLENEBISDIPHENOL, AND 4,4''-ISOALKYLIDENEDIPHENOL AND (2) A BISPHENOLIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF 4,4''-ISOLALKYLIDENEBIS(2,6-DIBROMOPHENOL), 4,4''-ISOALKYLIDENE(2,6=DICHLOROPHENOL), 4,4''-ISOALKYLINENEBIS(CHLOROPHENOL), 4,4''-ISOALKYLIDENEBIS(BROMPHENOL), 4,4''-METHYLENEBIS(2,6-DICHLOROPHENOL), 4,4''-METHYLENEBIS(2,6-DICHLOROPHENOL), 4,4''-METHYLENEBISDIPHENOL, AND 4,4''-ISOALKYLIDENEDIPHENOL, IN THE RATIO OF BETWEEN 0.95 AND 1.05 MOLES OF THE DIEPOXIDE ETHER PER MOLE OF THE BISPHENOLIC COMPOUND, AT LEAST ONE OF THE DIEPOXIDE ETHER AND BISPHENOLIC REACTANTS CONTAINING HALOGEN SUBSTITUENTS SELECTED FROM THE CLASS CONSISTING OF BROMINE AND CHLORINE ATTACHED DIRECTLY TO CARBON ATOMS OF THE AROMATIC NUCLEI, SUCH HALOGEN SUBSITUENT BEING PRESENT IN AN AMOUNT SUFFICIENT TO PROVIDE AT LEAST 10.5 PERCENT OF BROMINE, WHEN BROMINE IS THE HALOGEN, AND AT LEAST 19.0 PERCENT OF CHLORINE, WHEN CHLORINE IS THE HALOGEN, BASED ON THE WEIGHT OF SAID COMPOSITION, IN THE PRESENCE OF (3) A TERTIARY AMINE CATALYST, IN AN AMOUNT SUFFICIENT TO PROVIDE AT LEAST 0.02 PERCENT NITROGEN, BUT WEIGHT OF SAID COMPOSITION, ADDED AS NR3 WHEREIN EACH R IS AN ALKYL SUBSTITUENT CONTAINING BETWEEN TWO AND SIX CARBON ATOMS ATOMS.
Claim 2
Dependent Claim
294 words
A MOLDABLE THERMOPLASTIC SELF-EXTINGUISHING SOLID RESIN COMPOSITION, HAVING A TENSILE STRENGTH OF AT LEAST ABOUT 7000 POUNDS PER SQUARE INCH, A PERCENT ELONGATION OF AT LEAST ABOUT 3.5, A TENSILE MODULUS OF AT LEAST ABOUT 4.0X10** POUNDS PER SQUARE INCH, AN IMPACR RESISTANCE OF AT LEAST ABOUT 1.5 FOOT POUNDS PER INCH OF NOTCH, A ROCKWELL HARDNESS OF AT LEAST ABOUT 50, A DIELECTRIC CONSTANT AT 10.5 CYCLES POUND SECOND OF AT LEAST ABOUT 3.5 MICRO-MICROFARADS, A HEAT DISTORATION TEMPERATURE OF AT LEAST ABOUT 190*F., AND A MOLECULAR WEIGHT OF AT LEAST ABOUT 30,000 WHICH CONSISTS ESSENTIALLY OF THE REACTION PRODUCT OF (1) A DEGLYCIDYL ETHER HAVING AN AVERAGE OF ABOUT TWO TERMINAL OXIRANE GROUP PER MOLECULE, PREPARED BY REACTING EPICHLOROHYDRIN WITH AN HYDROXY COMPOUND SELECTED FROM THE CLASS CONSISTING OF 4,4''-ISOALKYLIDENEBIS(2,6-DIBROMOPHENOL), 4,4''-ISOALKYLIDENENEBIS(2,6-DICHLOROPHENOL), 4,4''-METHYLENEBIS(2,6-DIBROMOPHENOL), 4,4''-ISOALKYLIDENEBIS(BROMOPHENOL), 4,4''-METHYLENEBIS(2,6-DICHLOROPHENOL), 4,4''-METHYLENE-BIS(2,6-DIBROMOPHENOL), 4,4''-METHYLENEBISDIPHENOL, AND 4,4''-ISOALKYLIDENEDIPHENOL AND (2) A BISPHENOLIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF 4,4''-ISOLALKYLIDENEBIS(2,6-DIBROMOPHENOL), 4,4''-ISOALKYLIDENE(2,6=DICHLOROPHENOL), 4,4''-ISOALKYLINENEBIS(CHLOROPHENOL), 4,4''-ISOALKYLIDENEBIS(BROMPHENOL), 4,4''-METHYLENEBIS(2,6-DICHLOROPHENOL), 4,4''-METHYLENEBIS(2,6-DICHLOROPHENOL), 4,4''-METHYLENEBISDIPHENOL, AND 4,4''-ISOALKYLIDENEDIPHENOL, IN THE RATIO OF BETWEEN 0.95 AND 1.05 MOLES OF THE DIEPOXIDE ETHER PER MOLE OF THE BISPHENOLIC COMPOUND, AT LEAST ONE OF THE DIEPOXIDE ETHER AND BISPHENOLIC REACTANTS CONTAINING HALOGEN SUBSTITUENTS SELECTED FROM THE CLASS CONSISTING OF BROMINE AND CHLORINE ATTACHED DIRECTLY TO CARBON ATOMS OF THE AROMATIC NUCLEI, SUCH HALOGEN SUBSITUENT BEING PRESENT IN AN AMOUNT SUFFICIENT TO PROVIDE AT LEAST 10.5 PERCENT OF BROMINE, WHEN BROMINE IS THE HALOGEN, AND AT LEAST 19.0 PERCENT OF CHLORINE, WHEN CHLORINE IS THE HALOGEN, BASED ON THE WEIGHT OF SAID COMPOSITION, IN THE PRESENCE OF (3) A TERTIARY AMINE CATALYST, IN AN AMOUNT SUFFICIENT TO PROVIDE AT LEAST 0.02 PERCENT NITROGEN, BUT WEIGHT OF SAID COMPOSITION, ADDED AS NR3 WHEREIN EACH R IS AN ALKYL SUBSTITUENT CONTAINING BETWEEN TWO AND SIX CARBON ATOMS ATOMS.
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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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |