Patent US4659387A successfully refreshed from Google Patents.
US4659387A
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US
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Nitrocellulose moistened with tertiary alcohols and the use thereof in polyurethane lacquers
Assignee: Dow Produktions und Vertriebs GmbH and Co OHG
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Filing: 1985-07-30
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Granted: 1987-04-21
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Expires: 2005-07-30
Abstract
Abstract Nitrocellulose moistened with alcohol, particularly for polyurethane lacquers, characterized in that a lower aliphatic tertiary alcohol is used as moistening agent.
Inventors
- 👤 Erhard Luhmann
- 👤 Lutz Hoppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:47
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/16; C09D101/18; C09D175/00; C09D175/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
31 words
A nitrocellulose which comprises a moistening agent comprising a lower aliphatic tertiary alcohol, said moistening agent being present in an amount of at least 25% by weight, based on dry weight.
Claim 2
Dependent Claim
31 words
A nitrocellulose which comprises a moistening agent comprising a lower aliphatic tertiary alcohol, said moistening agent being present in an amount of at least 25% by weight, based on dry weight.
Claim 3
Dependent Claim
13 words
Nitrocellulose as claimed in claim 1 wherein the moistening agent is a t-butanol.
Claim 4
Dependent Claim
22 words
Nitrocellulose as claimed in claim 1, wherein the lower aliphatic tert.-alcohol contains small amounts of water or a lower unbranched aliphatic alcohol.
Claim 5
Dependent Claim
18 words
A nitrocellulose according to claim 1, wherein the lower aliphatic tertiary alcohol has up to 6 carbon atoms.
Claim 6
Dependent Claim
13 words
A polyurethane lacquer composition which comprises a nitrocellulose as claimed in claim 1.
Claim 7
Dependent Claim
28 words
A polyurethane lacquer composition according to claim 5, wherein the nitrocellulose is present in an amount of 1 to 30 weight %, based on the total lacquer weight.
Claim 8
Dependent Claim
28 words
A polyurethane lacquer composition according to claim 5, wherein the nitrocellulose is present in an amount of 3 to 20 weight %, based on the total lacquer weight.
Claim 9
Dependent Claim
14 words
A polyurethane lacquer composition according to claim 5, wherein the moistening agent comprises tert.-butanol.
References Cited (Backward Citations)
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Cited
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Cited
US3284253A
Cited
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Cited
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Cited
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Cited
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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) | 1990-04-20 | 1990-10-20 | 1991-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-20 | 1994-10-20 | 1995-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-20 | 1998-10-20 | 1999-04-21 | $7700.00 | Window Closed / Lapsed |