US4065627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High molecular weight radiation curable resins
Assignee: General Mills Chemicals Inc
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Filing: 1976-09-27
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Granted: 1977-12-27
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Expires: 1996-09-27
Abstract
Abstract High molecular weight radiation curable ester-diethers, ester-monoethers and their diisocyanate derivatives.
Inventors
- 👤 Stuart A. Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:55
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4244
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
161 words
The diisocyanate derivative of the formula: ##STR12## wherein X is an aromatic hydrocarbon, cycloaliphatic hydrocarbon or aliphatic hydrocarbon group containing 4 to 38 carbon atoms, R is an aliphatic hydrocarbon or aromatic hydrocarbon group containing four to eight carbon atoms, R' is hydrogen or a methyl group, R" is an aliphatic hydrocarbon group containing two to eight carbon atoms with the proviso that the aliphatic hydrocarbon group can contain ether linkages, R"' is an aliphatic hydrocarbon group containing two to eight carbon atoms with the priviso that the aliphatic hydrocarbon group can contain ether linkages, R" and R"' when containing ether linkages have the formulae (--R a --O--R b )--, --(R a --O--R b --O--R c )-- or --(R a --O--R b --O--R c --O--R d )-- wherein R a , R b , R c , and R d are alkylene groups containing in total from four to eight carbon atoms, and n is an integer from two to five.
Claim 2
Dependent Claim
161 words
The diisocyanate derivative of the formula: ##STR12## wherein X is an aromatic hydrocarbon, cycloaliphatic hydrocarbon or aliphatic hydrocarbon group containing 4 to 38 carbon atoms, R is an aliphatic hydrocarbon or aromatic hydrocarbon group containing four to eight carbon atoms, R' is hydrogen or a methyl group, R" is an aliphatic hydrocarbon group containing two to eight carbon atoms with the proviso that the aliphatic hydrocarbon group can contain ether linkages, R"' is an aliphatic hydrocarbon group containing two to eight carbon atoms with the priviso that the aliphatic hydrocarbon group can contain ether linkages, R" and R"' when containing ether linkages have the formulae (--R a --O--R b )--, --(R a --O--R b --O--R c )-- or --(R a --O--R b --O--R c --O--R d )-- wherein R a , R b , R c , and R d are alkylene groups containing in total from four to eight carbon atoms, and n is an integer from two to five.
Claim 3
Dependent Claim
16 words
The composition of claim 1 wherein X is an aromatic hydrocarbon group derived from toluene diisocyanate.
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) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |