Patent US4452930A successfully refreshed from Google Patents.
US4452930A
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Curable compositions containing novel urethane curing agents
Assignee: PPG Industries Ohio Inc
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Filing: 1983-02-10
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Granted: 1984-06-05
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Expires: 2003-02-10
Abstract
Abstract There is herein provided a curable composition comprising an active hydrogen-containing material and a curing agent having a urethane-containing moiety of the structure: ##STR1## wherein R is hydrogen, an alkyl, alkenyl or aryl group, wherein X is hydrogen, an alkyl, alkenyl or aryl group, or wherein X is a moiety of the structure: ##STR2## of which R 1 and R 2 are, each independently, hydrogen, an alkyl, alkenyl or aryl group, or members of a cyclic or heterocyclic group. The curing agent may be present as a separate component or an integral component with the active hydrogen-containing material.
Inventors
- 👤 Thomas C. Moriarity
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:54
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/08; C08G18/0804; C08G18/0809; C08G18/0814; C08G18/28; C08G18/40; C08G18/64; C08G18/6415; C08G18/643
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
93 words
A curable composition comprising an active hydrogen-containing material, and a curing agent having a urethane-containing moiety of the structure: ##STR8## wherein R is hydrogen, an alkyl, alkenyl or aryl group, wherein X is hydrogen, an alkyl, alkenyl or aryl group, or wherein X is a moiety of the structure: ##STR9## of which R 1 and R 2 are, each independently, hydrogen, an alkyl, alkenyl or aryl group, or members of a cyclic or heterocyclic group; said curing agent is present as a separate component or an integral component of the active hydrogen-containing material.
Claim 2
Dependent Claim
93 words
A curable composition comprising an active hydrogen-containing material, and a curing agent having a urethane-containing moiety of the structure: ##STR8## wherein R is hydrogen, an alkyl, alkenyl or aryl group, wherein X is hydrogen, an alkyl, alkenyl or aryl group, or wherein X is a moiety of the structure: ##STR9## of which R 1 and R 2 are, each independently, hydrogen, an alkyl, alkenyl or aryl group, or members of a cyclic or heterocyclic group; said curing agent is present as a separate component or an integral component of the active hydrogen-containing material.
Claim 3
Dependent Claim
45 words
A curable composition of claim 1, wherein the active hydrogen-containing material is a polymer selected from the group consisting of an epoxy polymer, an acrylic polymer, a polyester polymer, an alkyd polymer, a polyether polymer, a polyurea polymer, a polyurethane polymer, and a mixture thereof.
Claim 4
Dependent Claim
17 words
A curable composition of claim 2, wherein the polymer is an epoxy polymer or an acrylic polymer.
Claim 5
Dependent Claim
16 words
A curable composition of claim 1 wherein R is hydrogen, an alkyl, alkenyl or aryl group.
Claim 6
Dependent Claim
18 words
A curable composition of claim 4, wherein the alkyl group contains from about 1 to 10 carbon atoms.
Claim 7
Dependent Claim
18 words
A curable composition of claim 5, wherein the alkyl group contains from about 1 to 5 carbon atoms.
Claim 8
Dependent Claim
14 words
A curable composition of claim 4, wherein R is hydrogen or a methyl group.
Claim 9
Dependent Claim
33 words
A curable composition of claim 1 wherein ##STR10## of which R 1 and R 2 are, each independently, hydrogen, an alkyl, alkenyl or aryl group, or members of a cyclic or heterocyclic group.
Claim 10
Dependent Claim
18 words
A curable composition of claim 8 wherein the alkyl group contains from about 1 to 26 carbon atoms.
Claim 11
Dependent Claim
18 words
A curable composition of claim 9 wherein the alkyl group contains from about 2 to 18 carbon atoms.
Claim 12
Dependent Claim
18 words
A curable composition of claim 10 wherein the alkyl group contains from about 4 to 8 carbon atoms.
Claim 13
Dependent Claim
82 words
A curable composition as recited in claim 1 in which the urethane is obtained by reacting: (A) an isocyanate, and (B) a compound of the structure: ##STR11## wherein R is hydrogen, an alkyl, alkenyl or aryl group; wherein X is hydrogen, an alkyl, alkenyl or aryl group, or wherein X is a moiety of the structure: ##STR12## of which R 1 and R 2 are, each independently, hydrogen, an alkyl, alkenyl or aryl group, or members of a cyclic or heterocyclic group.
Claim 14
Dependent Claim
33 words
A curable composition of claim 12 wherein ##STR13## of which R 1 and R 2 are, each independently, hydrogen, an alkyl, alkenyl or aryl group, or members of a cyclic or heterocyclic group.
Claim 15
Dependent Claim
18 words
A curable composition of claim 13 wherein the alkyl group contains from about 1 to 26 carbon atoms.
Claim 16
Dependent Claim
18 words
A curable composition of claim 14 wherein the alkyl group contains from about 2 to 18 carbon atoms.
Claim 17
Dependent Claim
18 words
A curable composition of claim 15 wherein the alkyl group contains from about 4 to 8 carbon atoms.
Claim 18
Dependent Claim
16 words
A curable composition of claim 12 wherein R is hydrogen, an alkyl, alkenyl or aryl group.
Claim 19
Dependent Claim
18 words
A curable composition of claim 17 wherein the alkyl group contains from about 1 to 10 carbon atoms.
Claim 20
Dependent Claim
18 words
A curable composition of claim 18, wherein the alkyl group contains from about 1 to 5 carbon atoms.
Claim 21
Dependent Claim
14 words
A curable composition of claim 17 wherein R is hydrogen or a methyl group.
Claim 22
Dependent Claim
14 words
A compound as recited in claim 12 which is N,N-dibutylglycolamide, N,N-dipentylglycolamide, N,N-dibutyllactamide or anilide.
Claim 23
Dependent Claim
12 words
A curable composition of claim 12 wherein the isocyanate is a polyisocyanate.
Claim 24
Dependent Claim
11 words
A curable composition of claim 12 wherein the isocyanate is aromatic.
Claim 25
Dependent Claim
12 words
A curable composition of claim 1 which is dispersed in aqueous medium.
Claim 26
Dependent Claim
18 words
A curable composition of claim 24 in which the dispersed phase is stabilized by a cationic base group.
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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) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |