US3859255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methylolglycidyl ethers of polyvalent phenol ethers
Assignee: Individual
•
Filing: 1972-04-27
•
Granted: 1975-01-07
•
Expires: 1992-04-27
Abstract
Abstract The invention relates to liquid epoxide resins from binuclear polyvalent phenols of which the phenol groups are etherified, and which contain at least 2 glycidyloxymethyl groups. After being cured, these resins form the material of chemically resistant products having good mechanical properties.
Inventors
- 👤 Alfred Heer
- 👤 Alfred Renner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:05
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/08; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; C08G59/18; C08G59/20; C08G59/32; C08G59/3218
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
21 words
Methylolglycidyl ether according to claim 1, wherein R in formula I represents an alkylene group having 1 to 4 carbon atoms.
Claim 2
Dependent Claim
12 words
Methylolglycidyl ether according to claim 1 containing at least 3 glycidyl groups.
Claim 3
Dependent Claim
28 words
Methylolglycidyl ether according to claim 1, wherein R in formula I represents the 2,2-propylidene group, and the etherified phenolic groups are in the p-position with respect to R.
Claim 4
Dependent Claim
28 words
Methylolglycidyl ether according to claim 1, wherein R in formula I represents the sulphonyl group, and the etherified phenolic groups are in the p-position with respect to R.
Claim 5
Dependent Claim
28 words
Methylolglycidyl ether according to claim 1, wherein R in formula I represents the 1,1-prop-2-enylidene group, and the etherified phenolic groups are in the p-position with respect to R.
Claim 6
Dependent Claim
14 words
Methylolglycidyl ether according claim 1, wherein R'' in formula I represents the methyl group.
Claim 7
Dependent Claim
14 words
Methylolglycidyl ether according claim 1, wherein R'' in formula I represents the prop-2-enyl group.
Claim 8
Dependent Claim
14 words
Methylolglycidyl ether according claim 1, wherein R'' in formula I represents the methoxyethyl group.
Claim 9
Dependent Claim
14 words
Methylolglycidyl ether according claim 1, wherein R'' in formula I represents the glycidyloxyethyl group.
Claim 10
Dependent Claim
22 words
A Composition comprising a methylolglycidyl ether according to claim 1 and a sufficient amount of curing agent to cure said methlolglycidyl ether.
Claim 11
Dependent Claim
17 words
A composition according to claim 11 comprising the employment of cycloaliphatic or aliphatic polyamines as curing agents.
Claim 12
Dependent Claim
15 words
A composition according to claim 11 comprising the employment of mercapto compounds as curing agents.
Claim 13
Dependent Claim
14 words
A composition according to claim 11 comprising the employment of polyphenols as curing agents.
References Cited (Backward Citations)
US2579329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |