US5126422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions and coated heat-resistant substrates prepared therefrom
Assignee: Bayer AG
•
Filing: 1991-06-07
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Granted: 1992-06-30
•
Expires: 2011-06-07
Abstract
Abstract The present invention relates to coating compositions which are suitable for the production of heat resistant films and coatings and contain a) 100 parts by weight of organic compounds having (i) carbodiimide and/or uretoneimine groups and (ii) blocked isocyanate groups, b) 2 to 100 parts by weight of intramolecular carboxylic acid anhydrides which have a molecular weight of 98 to 500 and may contain free carboxyl groups and c) 2 to 100 parts by weight of polyhydric alcohols which have a molecular weight of 62 to 400 and a hydroxyl functionality of 2 to 4. The present invention also relates to heat-resistant substrates, in particular for wires, coated with these coating compositions.
Inventors
- 👤 Reinhard Halpaap
- 👤 Willi Dunwald
- 👤 Holger Casselmann
- 👤 Hans Schlegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:10
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/302; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/34; C08G18/343; C08G18/345; C08G18/38; C08G18/3819; C08G18/3842; C08G18/3851; C08G18/3853; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/79; C08G18/797; C08G18/80; C08G18/8061; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31605
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
94 words
A coating composition which is suitable for the production of heat resistant films and coatings and comprises a) 100 parts by weight of an organic compound containing (i) carbodiimide and/or uretoneimine groups and (ii) blocked isocyanate groups, b) 2 to 100 parts by weight of an intramolecular carboxylic acid anhydride which has a molecular weight of 98 to 500 and may contain free carboxyl groups and c) 2 to 100 parts by weight of a polyhydric alcohol which has a molecular weight of 62 to 400 and a hydroxyl functionality of 2 to 4.
Claim 2
Dependent Claim
94 words
A coating composition which is suitable for the production of heat resistant films and coatings and comprises a) 100 parts by weight of an organic compound containing (i) carbodiimide and/or uretoneimine groups and (ii) blocked isocyanate groups, b) 2 to 100 parts by weight of an intramolecular carboxylic acid anhydride which has a molecular weight of 98 to 500 and may contain free carboxyl groups and c) 2 to 100 parts by weight of a polyhydric alcohol which has a molecular weight of 62 to 400 and a hydroxyl functionality of 2 to 4.
Claim 3
Dependent Claim
71 words
The coating composition of claim 1 wherein component a) contains i) 0 to 25% by weight of carbodiimide groups (calculated as NCN), ii) 0 to 30% by weight of uretoneimine groups (calculated as C 2 N 3 O) and iii) 1 to 25% by weight of blocked isocyanate groups (calculated as NCO), and iv) the sum of carbodiimide groups and uretoneimine groups (calculated as NCN) is 0.5 to 25% by weight.
Claim 4
Dependent Claim
22 words
The coating composition of claim 1 wherein component c) comprises a member selected from the group consisting of glycerol, trimethylolpropane and N,N',N"-tris-(2-hydroxyethyl)-isocyanurate.
Claim 5
Dependent Claim
22 words
The coating composition of claim 2 wherein component c) comprises a member selected from the group consisting of glycerol, trimethylolpropane and N,N',N"-tris-(2-hydroxyethyl)-isocyanurate.
Claim 6
Dependent Claim
14 words
The coating composition of claim 1 wherein component b) comprises a tricarboxylic acid monoanhydride.
Claim 7
Dependent Claim
14 words
The coating composition of claim 2 wherein component b) comprises a tricarboxylic acid monoanhydride.
Claim 8
Dependent Claim
14 words
The coating composition of claim 3 wherein component b) comprises a tricarboxylic acid monoanhydride.
Claim 9
Dependent Claim
14 words
The coating composition of claim 4 wherein component b) comprises a tricarboxylic acid monoanhydride.
Claim 10
Dependent Claim
13 words
The coating composition of claim 1 wherein component b) comprises trimellitic acid anhydride.
Claim 11
Dependent Claim
13 words
The coating composition of claim 2 wherein component b) comprises trimellitic acid anhydride.
Claim 12
Dependent Claim
13 words
The coating composition of claim 3 wherein component b) comprises trimellitic acid anhydride.
Claim 13
Dependent Claim
13 words
The coating composition of claim 4 wherein component b) comprises trimellitic acid anhydride.
Claim 14
Dependent Claim
15 words
A coated heat resistant substrate wherein the coating comprises the coating composition of claim 1.
Claim 15
Dependent Claim
14 words
The coated heat resistant substrate of claim 13 wherein the substrate is a wire.
Claim 16
Dependent Claim
15 words
A coated heat resistant substrate wherein the coating comprises the coating composition of claim 12.
Claim 17
Dependent Claim
14 words
The coated heat resistant substrate of claim 15 wherein the substrate is a wire.
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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) | 1995-06-30 | 1995-12-30 | 1996-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-30 | 1999-12-30 | 2000-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-30 | 2003-12-30 | 2004-06-30 | $7700.00 | Window Closed / Lapsed |