US2561814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Potentially reactive curable polymers
Assignee: Hexion Inc
•
Filing: 1944-11-21
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Granted: 1951-07-24
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Expires: 1964-11-21
Abstract
No abstract record available.
Inventors
- 👤 Emil E Novotny
- 👤 Vogelsang George Karl
- 👤 Ernest E Novotny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:45
CPC Classifications
C; C08; C08K; C08K5/00; C08B; C08B15/00; C08G; C08G69/00; C08G69/48; C08G69/50; C08L; C08L1/00; C08L1/08; C08L77/00; C08L89/00; C08L89/005; C08L89/04; C08L89/06; C08L93/00; C08L95/00; Y; Y10; Y10S; Y10S36/00; Y10S36/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
290 words
POTENTIALLY REACTIVE CURABLE COMPOSITIONS CONSISTING OF A CURING AGENT SELECTED FROM THE CLASS CONSISTING OF THE SUBSTANTIALLY FULLY SATURATED HALOGENATION ADDITION PRODUCTS OF THE ALDEHYDES OF THE MONO HETERO ATOMIC FIVE MEMBERED RINGS AND THEIR PARTIALLY DEHALOGENATED REACTIVE DERIVATIVES, IN ADMIXTURE WITH A POLYMERIC ORGANIC COMPOUND CONTAINING WITHIN ITS STRUCTURE, ATTACHED VIA COVALENT BONDS, A PLURALITY OF FUNCTIONALLY REACTIVE ATOMIC GROUPS KNOWN TO BE REACTIVE WITH SAID CURING AGENT SAID REACTIVITY BEING DETERMINED BY BRINGING ANY COMPOUND "XY" INTO CONTACT WITH SAID CURING AGENT, WHERE "X" DENOTES A NON-REACTIVE RESIDUE AND "Y" DENOTES SUCH GROUPS TESTED AND THE PRESENCE OF "Y" BRINGING ABOUT A REACTION, SAID REACTIVE ATOMIC GROUPS BEING PRESENT IN THE POLYMERIC ORGANIC COMPOUND IN THE PROPORTION OF AT LEAST ONE SUCH GROUP PER THOUSAND ATOMS OF THE SAID POLYMERIC ORGANIC COMPOUND, SAID SUBSTANTIALLY FULLY SATURATED HALOGENATION ADDITION PRODUCTS OF THE ALDEHYES OF THE MONO HETERO ATOMIC FIVE MEMBERED RINGS PRODUCED BY THE METHOD WHICH COMPRISES THE STEPS OF DILUTING ONE OR MORE OF SAID ALDEHYDES WITH A SOLVENT IN PROPORTION OF AT LEAST ONE MOLE OF SAID SOLVENT TO EACH MOLE OF SAID ALDEHYDE, AND THEN RAPIDLY INTRODUCING HALOGEN INTO THE SOLUTION WHILE MAINTAINING THE TEMPERATURE THEREOF BELOW THE POINT OF SPONTANEOUS DECOMPOSITION UNTIL THE ALDEHYDE HAS TAKEN UP SUBSTANTIALLY FOUR ATOMS OF HALOGEN PER MOLECULE OF ALDEHYDE AND THE POINT OF SUBSTANTIAL SATURATION HAS BEEN REACHED, AND THE SAID PARTIALLY DEHALOGENATED REACTIVE DERIVATIVES PRODUCED BY THE METHOD WHICH COMPRISES DEHALOGENATING THE SAID FULLY SATURATED HALOGENATED ADDITION PRODUCTS TO A POINT WHERE THE AVERAGE HALOGEN CONTENT OF THE RESULTANT PARTIAL DEHALOGENATION PRODUCT IS EQUAL TO NOT LESS THAN ONE ATOM OF HALOGEN PER MOLECULE OF ALDEHYDE THAT ENTERED INTO THE MAKING OF SAID SATURATION HALOGENATION ADDITION PRODUCTS.
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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) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |