US3624178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy terminated polyurethanes
Assignee: BASF Schweiz AG
•
Filing: 1970-02-03
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Granted: 1971-11-30
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Expires: 1990-02-03
Abstract
Abstract WHERE N IS A WHOLE NUMBER, AT LEAST 2, PREFERABLY 2 OR 3, R stands for a n-valent aliphatic residue which may be interrupted by oxygen atoms and A represents the residue of a glycol or of a polyglycol whose terminal hydroxyl groups have been removed, and (2) the diglycidyl ether of a glycol or polyglycol. An epoxy resin mixture containing (1) the polyepoxide of the formula
Inventors
- 👤 Friedrich Lohse
- 👤 Daniel Porret
- 👤 Willy Fatzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:53
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22; C07D303/16; C07D303/24; C07D303/34; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/2805; C08G18/2815; C08G18/2845; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/226; C08G59/28; C08G59/30; C08G59/302
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
5 words
A polyepoxide of the formula
Claim 2
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 3
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 4
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 5
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 6
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 7
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 8
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 9
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 10
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 11
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 12
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 13
Dependent Claim
10 words
A polyepoxide as claimed in claim 1 of the formula
Claim 14
Dependent Claim
9 words
Curable mixture of (1) the polyepoxide of the formula
Claim 15
Dependent Claim
9 words
CuRable mixture of (1) the polyepoxide of the formula
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |