Patent US4181682A successfully refreshed from Google Patents.
US4181682A
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US
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Aminated propoxylated polybutanediols
Assignee: Huntsman Corp
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Filing: 1978-01-09
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Granted: 1980-01-01
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Expires: 1998-01-09
Abstract
Abstract Covers a polymeric amine having the following structural formula: ##STR1## where x is an average number ranging from about 6 to 50, and y and z are average numbers ranging from about 1 to about 20, with the sum of y and z being from about 6 to about 40. Also covers a method of preparing said amine polymer.
Inventors
- 👤 Lewis W. Watts, Jr.
- 👤 Harold G. Waddill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:58
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/321; C08G65/325; C08G65/3255; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2609; C08L; C08L63/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
53 words
A polymer composition comprising a polymeric amine having the following structural formula: ##STR4## where x is an average number ranging from about 6 to 50, and y and z are average numbers ranging from about 1 to about 20 with the sum of y and z being from about 6 to about 40.
Claim 2
Dependent Claim
53 words
A polymer composition comprising a polymeric amine having the following structural formula: ##STR4## where x is an average number ranging from about 6 to 50, and y and z are average numbers ranging from about 1 to about 20 with the sum of y and z being from about 6 to about 40.
Claim 3
Dependent Claim
14 words
The composition of claim 1 where the sum of y and z is 6-20.
Claim 4
Dependent Claim
14 words
The composition of claim 2 where the sum of y and z is 6-10.
Claim 5
Dependent Claim
9 words
The composition of claim 1 where x equals 8-40.
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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) | 1982-12-31 | 1983-07-02 | 1984-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-31 | 1987-07-02 | 1988-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-31 | 1991-07-02 | 1992-01-01 | $7700.00 | Window Closed / Lapsed |