US5105010A
Expired / Lapsed
US
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Carbodiimide compounds, polymers containing same and coating compositions containing said polymers
Assignee: PPG Industries Inc
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Filing: 1991-06-13
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Granted: 1992-04-14
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Expires: 2011-06-13
Abstract
Abstract Carbodiimide compounds having the following structural formula are claimed: ##STR1## Z being selected from the group consisting of the following moieties: ##STR2## wherein R 1 represents an alkylidene radical; R 2 represents hydrogen or an alkyl radical; R 3 represents an alkyl radical, an aromatic hydrocarbon moiety or a cycloaliphatic hydrocarbon moiety or substituted derivatives thereof; R 4 represents an aromatic hydrocarbon moiety; R 5 represents an alkyl radical; and x is an integer ranging from 1 to 6. Polymers containing moieties of at least two such carbodiimide compounds depending therefrom are also claimed and are useful in the formulation of coating compositions which harden or cure at low temperatures.
Inventors
- 👤 Padmanabhan Sundararaman
- 👤 James A. Claar
- 👤 Charles M. Kania
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:49
CPC Classifications
C; C07; C07C; C07C267/00; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/46; C08; C08F; C08F246/00; C07C2601/00; C07C2601/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
79 words
A carbodiimide compound defined by the following structural formula: ##STR13## Z being selected from the group consisting of the following moieties: ##STR14## wherein R 1 represents an alkylidene radical; R 2 represents hydrogen or an alkyl radical; R 3 represents an alkyl radical, an aromatic hydrocarbon moiety or a cycloaliphatic hydrocarbon moiety or substituted derivatives thereof; R 4 represents an aromatic hydrocarbon moiety; R 5 represents an alkyl radical; and x is an integer ranging from 1 to 6.
Claim 2
Dependent Claim
79 words
A carbodiimide compound defined by the following structural formula: ##STR13## Z being selected from the group consisting of the following moieties: ##STR14## wherein R 1 represents an alkylidene radical; R 2 represents hydrogen or an alkyl radical; R 3 represents an alkyl radical, an aromatic hydrocarbon moiety or a cycloaliphatic hydrocarbon moiety or substituted derivatives thereof; R 4 represents an aromatic hydrocarbon moiety; R 5 represents an alkyl radical; and x is an integer ranging from 1 to 6.
Claim 3
Dependent Claim
11 words
The carbodiimide of claim 1 wherein Z is the moiety ##STR15##
Claim 4
Dependent Claim
11 words
The carbodiimide of claim 1 wherein Z is the moiety ##STR16##
Claim 5
Dependent Claim
11 words
The carbodiimide of claim 1 wherein Z is the moiety ##STR17##
Claim 6
Dependent Claim
96 words
The carbodiimide of claim 1 wherein R 1 represents an alkylidene radical having one to three carbon atoms; R 2 represents hydrogen or an alkyl radical having one to three carbon atoms; R 3 represents an alkyl radical having one to six carbonatoms, an aromatic hydrocarbon moiety having six to ten carbon atoms; a cycloaliphatic hydrocarbon moiety having three to six carbon atoms or substituted derivatives thereof; R 4 represents phenylene, biphenylene or naphthalene; R 5 represents an alkyl radical having one to three carbon atoms, and x is an integer ranging from 1 to 6.
Claim 7
Dependent Claim
68 words
The carbodiimide of claim 1 wherein Z is the moiety ##STR18## R 1 represents CH 2 ═, R 2 represents CH 3 --, R 3 represents an alkyl radical having four carbon atoms, an aromatic hydrocarbon moiety having six carbon atoms, a cycloaliphatic hydrocarbon moiety having six carbon atoms or substituted derivatives thereof, R 4 represents phenylene, R 5 represents CH 3 --and x is the integer 2.
Claim 8
Dependent Claim
16 words
The carbodiimide of claim 6 wherein R 3 represents an alkyl radical having four carbon atoms.
References Cited (Backward Citations)
EP0307361A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-04-14 | 1995-10-14 | 1996-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-14 | 1999-10-14 | 2000-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-14 | 2003-10-14 | 2004-04-14 | $7700.00 | Window Closed / Lapsed |