US4549005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cured polymeric material prepared by reacting an azadioxabicyclooctane with a polyisocyanate in the presence of moisture
Assignee: Ashland LLC
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Filing: 1984-10-09
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Granted: 1985-10-22
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Expires: 2004-10-09
Abstract
Abstract A process for the preparation of novel polymeric products which involves the reaction of mixtures of bicyclic amide acetals and polyisocyanates with moisture is described.
Inventors
- 👤 Anil B. Goel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:45
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/3823; C08G18/3825; C08G18/3827
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
109 words
The process for preparing a cured polymeric material comprising mixing a compound conforming to the formula ##STR2## wherein R is a hydrocarbon group having from 1 to 18 carbon atoms and R' can be independently selected and represents hydrogen, a hydrocarbon group having from 1 to 18 carbon atoms or an ether group having from 2 to 18 carbon atoms; and R" represents hydrogen, a hydrocarbon group having from 1 to 18 carbon atoms and an ether group having from 2 to 18 carbon atoms, with a polyisocyanate compound having at least two isocyanate groups per molecule and allowing the resulting mixture to react in the presence of moisture.
Claim 2
Dependent Claim
109 words
The process for preparing a cured polymeric material comprising mixing a compound conforming to the formula ##STR2## wherein R is a hydrocarbon group having from 1 to 18 carbon atoms and R' can be independently selected and represents hydrogen, a hydrocarbon group having from 1 to 18 carbon atoms or an ether group having from 2 to 18 carbon atoms; and R" represents hydrogen, a hydrocarbon group having from 1 to 18 carbon atoms and an ether group having from 2 to 18 carbon atoms, with a polyisocyanate compound having at least two isocyanate groups per molecule and allowing the resulting mixture to react in the presence of moisture.
Claim 3
Dependent Claim
12 words
The cured polymeric material which results from the process of claim 1.
Claim 4
Dependent Claim
14 words
The process of claim 1 carried out at or about room temperature or above.
Claim 5
Dependent Claim
30 words
The process of claim 3 wherein the moisture is present in from just a trace up to an equal molar amount based on the moles of bicyclic amide acetal present.
Claim 6
Dependent Claim
12 words
The process of claim 4 wherein there is also included a catalyst.
Claim 7
Dependent Claim
22 words
The process of claim 4 wherein R is --CH 2 CH 3 and R' is --CH 2 OCH 2 CH═CH 2 .
Claim 8
Dependent Claim
20 words
The process of claim 4 wherein R is --CH 2 CH 3 and R' is --C 6 H 5 .
Claim 9
Dependent Claim
12 words
The process of claim 5 wherein the catalyst is a tertiary amine.
Claim 10
Dependent Claim
12 words
The process of claim 5 wherein the catalyst is dibutyl tin dilaurate.
Claim 11
Dependent Claim
12 words
The process of claim 4 wherein the polyisocyanate is hexamethylene diisocyanate trimer.
Claim 12
Dependent Claim
18 words
The process of claim 4 wherein the polyisocyanate is a mixture of toluene diisocyanate and hexamethylene diisocyanate trimer.
References Cited (Backward Citations)
DE2344607A1
Cited
US4101527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-21 | 1989-04-22 | 1989-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-21 | 1993-04-22 | 1993-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-21 | 1997-04-22 | 1997-10-22 | $7700.00 | Window Closed / Lapsed |