US3609112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urea-urethane compositions from 1-amino-3-aminomethyl-3,5,5-trimethyl cyclohexane
Assignee: NL SPENCER KELLOG Inc
•
Filing: 1967-06-30
•
Granted: 1971-09-28
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Expires: 1987-06-30
Abstract
Abstract A urea-urethane composition is prepared by reaction of 1-amino3-aminomethyl-3,5,5-trimethyl cyclohexane with urethane prepolymer.
Inventors
- 👤 Herbert M Schroeder
- 👤 Paul C Stievater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:22
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/08; C08G18/10; C08G18/4804; C08G18/4808; C08G18/4825; C08G18/4833; C08G18/4854; C08G18/70; C08G18/72; C08G18/74; C08G18/75; C08G18/758
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
14 words
The composition of claim 1 in which the urea-urethane is dissolved in inert solvent.
Claim 2
Dependent Claim
19 words
The composition of claim 2 in which the polyether glycol has a molecular weight of up to about 5000.
Claim 3
Dependent Claim
12 words
The composition of claim 1 in which the diisocyanate is aliphatic diisocyanate.
Claim 4
Dependent Claim
14 words
The composition of claim 4 in which the urea-urethane is dissolved in inert solvent.
Claim 5
Dependent Claim
19 words
The composition of claim 5 in which the polyether glycol has a molecular weight of up to about 5000.
Claim 6
Dependent Claim
23 words
The composition of claim 5 in which polyether glycol is selected from the group consisting of polypropylene glycol, polyethylene glycol and polybutylene glycol.
Claim 7
Dependent Claim
23 words
The composition of claim 7 in which the free isocyanate group content of the urethane prepolymer is about 3 to 7 weight percent.
Claim 8
Dependent Claim
27 words
The composition of claim 6 in which the diisocyanate is selected from the group consisting of di-(isocyanatocyclohexyl) methane, hexamethylene diisocyanate, methyl cyclohexyl diisocyanate and 2,4,4-trimethyl hexamethylene diisocyanate.
Claim 9
Dependent Claim
24 words
The composition of claim 9 in which the polyether glycol is selected from the group consisting of polypropylene glycol, polyethylene glycol and polybutylene glycol.
Claim 10
Dependent Claim
23 words
The composition of claim 10 in which the urethane prepolymer has a free isocyanate group content of about 3 to 7 weight percent.
Claim 11
Dependent Claim
9 words
A cured film of the composition of claim 1.
Claim 12
Dependent Claim
9 words
A cured film of the composition of claim 3.
Claim 13
Dependent Claim
9 words
A cured film of the composition of claim 4.
Claim 14
Dependent Claim
9 words
A cured film of the composition of claim 6.
Claim 15
Dependent Claim
9 words
A cured film of the composition of claim 7.
Claim 16
Dependent Claim
9 words
A cured film of the composition of claim 8.
Claim 17
Dependent Claim
9 words
A cured film of the composition of claim 9.
Claim 18
Dependent Claim
9 words
A cured film of the composition of claim 10.
Claim 19
Dependent Claim
9 words
A cured film of the composition of claim 11.
Claim 20
Dependent Claim
20 words
The composition of claim 1 in which the urea-urethane is dissolved in lower alkanol of one to six carbon atoms.
Claim 21
Dependent Claim
12 words
The composition of claim 21 in which the diisocyanate is aliphatic diisocyanate.
Claim 22
Dependent Claim
13 words
The composition of claim 22 in which the lower alkanol is isopropyl alcohol.
Claim 23
Dependent Claim
26 words
The composition of claim 7 in which the solvent is selected from the group consisting of dimethylformamide, N-methyl-2-pyrrolidone and alkanol of one to six carbon atoms.
Claim 24
Dependent Claim
17 words
The composition of claim 24 in which the solvent is alkanol of one to six carbon atoms.
Claim 25
Dependent Claim
11 words
The composition of claim 25 in which the solvent is isopropanol.
Claim 26
Dependent Claim
27 words
The composition of claim 25 in which the diisocyanate is selected from the group consisting of di-(isocyanatocyclohexyl) methane, hexamethylene diisocyanate, methyl cyclohexyl diisocyanate and 2,4,4-trimethyl hexamethylene diisocyanate.
Claim 27
Dependent Claim
11 words
The composition of claim 27 in which the solvent is isopropanol.
Claim 28
Dependent Claim
19 words
The composition of claim 1 in which the urea-urethane is dissolved in a solvent consisting essentially of isopropyl alcohol.
Claim 29
Dependent Claim
12 words
The composition of claim 2 in which the diisocyanate is di-(isocyanatocyclohexyl) methane.
Claim 30
Dependent Claim
14 words
The composition of claim 30 in which the solvent consists essentially of isopropyl alcohol.
Claim 31
Dependent Claim
24 words
The compoSition of claim 31 in which the polyether glycol is selected from the group consisting of polypropylene glycol, polyethylene glycol and polybutylene glycol.
Claim 32
Dependent Claim
9 words
A cured film of the composition of claim 30.
Claim 33
Dependent Claim
9 words
A cured film of the composition of claim 32.
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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |