US3783150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monofunctionally-blocked tris (2-hydroxyalkyl) isocyanurates and polyestes thereof
Assignee: Honeywell International Inc
•
Filing: 1971-12-13
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Granted: 1974-01-01
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Expires: 1991-12-13
Abstract
Abstract Monofunctionally-blocked tris(2-hydroxyalkyl)isocyanurates, made by reaction with equimolar amount of a monocarboxylic acid, are statistically difunctional alcohols useful for making polyesters. Use of an Alpha -ethylenically unsaturated polycarboxylic acid or an Alpha -ethylenically unsaturated monocarboxylic acid blocking agent in conjunction with a cross-linking monomer gives casting resins which are heat resistant, self-extinguishing, weather resistant, and color stable.
Inventors
- 👤 J Kolyer
- 👤 A Kveglis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:04
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
11 words
An alcohol as defined in claim 1 wherein R'' is hydrogen.
Claim 2
Dependent Claim
29 words
An alcohol as defined in claim 1 wherein R'' is alkyl of 1 to 11 carbon atoms which may be substituted with a halo, lower alkoxy, or pHenyl substituent.
Claim 3
Dependent Claim
29 words
An alcohol as defined in claim 1 wherein R'' is alkenyl of 1 to 11 carbon atoms which may be substituted with a halo, lower alkoxy or phenyl substituent.
Claim 4
Dependent Claim
25 words
An alcohol as defined in claim 1 wherein R'' is phenyl which may be substituted with a halo, lower alkyl, lower alkoxy, or nitro substituent.
Claim 5
Dependent Claim
11 words
An alcohol as defined in claim 5 wherein R'' is phenyl.
References Cited (Backward Citations)
US3637557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |