US4090001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions for denaturing paints, especially for cleaning painting cabins
Assignee: AIR-INDUSTRIE
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Filing: 1976-11-22
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Granted: 1978-05-16
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Expires: 1996-11-22
Abstract
Abstract The composition contains an alkaline agent and a polyether of the formula ##STR1## in which R is an alkyl, aryl-alkyl, aryl or alkyl-aryl group; and n and p are integers, of which one can be 0, the sum n + p being at least equal to 12. The composition is especially applicable to painting booths for automobile bodies.
Inventors
- 👤 Anne-Marie Mertzweiller nee Maillard
- 👤 Guy Etienne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:25
CPC Classifications
C; C09; C09D; C09D7/00; C09D7/71
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
109 words
In a method of substantially suppressing the adhesive power of paints, sizes or primers and of dispersing the same by bringing said paints, sizes or primers in contact with an aqueous alkaline denaturing solution, the improvement comprising employing as said alkaline denaturing solution an alkaline aqueous solution comprising an effective amount of a polyether having the formula: ##STR5## in which R is an alkyl, aryl-alkyl, aryl or alkyl-aryl, with at least 10 carbon atoms; and n and p are integers one of which can be 0, the sum n + p being at least equal to 12 wherein the pH of said alkaline polyether solution is up to 12.
Claim 2
Dependent Claim
109 words
In a method of substantially suppressing the adhesive power of paints, sizes or primers and of dispersing the same by bringing said paints, sizes or primers in contact with an aqueous alkaline denaturing solution, the improvement comprising employing as said alkaline denaturing solution an alkaline aqueous solution comprising an effective amount of a polyether having the formula: ##STR5## in which R is an alkyl, aryl-alkyl, aryl or alkyl-aryl, with at least 10 carbon atoms; and n and p are integers one of which can be 0, the sum n + p being at least equal to 12 wherein the pH of said alkaline polyether solution is up to 12.
Claim 3
Dependent Claim
46 words
A method according to claim 1, wherein the polyether has the formula: R.sub.1 -- O (CH.sub.2 -- CH.sub.2 -- O).sub.n.sbsb.1 -- H in which the group R 1 is an alkyl radical at least 12 carbon atoms and n 1 is at least equal to 16.
Claim 4
Dependent Claim
38 words
A method according to claim 1, wherein the polyether has the formula: R.sub.2 -- O -- (CH.sub.2 -- CH.sub.2 -- O).sub.n.sbsb.2 -- H in which R 2 is an alkyl-phenyl group and n 2 is greater than 12.
Claim 5
Dependent Claim
42 words
A method according to claim 1, wherein said polyether has the formula: ##STR6## in which R 3 is an alkyl group and the sum of the indices n 3 + p 3 both other than 0, is at least equal to 12.
Claim 6
Dependent Claim
22 words
A method according to claim 1, wherein said polyether contains in its molecule between about 20 and about 100 glycolic ether groups.
Claim 7
Dependent Claim
24 words
A method according to claim 1, wherein the concentration of polyether in said alkaline aqueous solution is from about 1 and about 3 g/l.
Claim 8
Dependent Claim
24 words
A method according to claim 1, wherein the concentration of polyether in said alkaline aqueous solution is from about 1 to about 5 g/l.
Claim 9
Dependent Claim
32 words
A method according to claim 1, wherein the alkaline agent is constituted by a hydroxide, a silicate, a phosphate, a polyphosphate, a borate, a perborate or a carbonate of an alkali metal.
Claim 10
Dependent Claim
31 words
A method according to claim 1, wherein the aqueous solution contains up to about 1000 ppm of an anti-foaming agent consisting of fatty esters of vegetal origin or of mineral oils.
Claim 11
Dependent Claim
100 words
In a method of preventing formation of paint, size or primer deposits on the walls and bottom of paint booths during use by applying to said walls and bottom an aqueous alkaline denaturing composition, the improvement comprising employing as said alkaline denaturing composition an alkaline aqueous solution comprising an effective amount of a polyether compound having the formula: ##STR7## in which R contains at least 10 carbon atoms and is selected from an alkyl, aryl-alkyl, aryl or alkyl-aryl group, and n and p are integers of which one can be 0, the sum n + p being at least 12.
Claim 12
Dependent Claim
100 words
In a method of preventing formation of paint, size or primer deposits on the walls and bottom of paint booths during use by applying to said walls and bottom an aqueous alkaline denaturing composition, the improvement comprising employing as said alkaline denaturing composition an alkaline aqueous solution comprising an effective amount of a polyether compound having the formula: ##STR7## in which R contains at least 10 carbon atoms and is selected from an alkyl, aryl-alkyl, aryl or alkyl-aryl group, and n and p are integers of which one can be 0, the sum n + p being at least 12.
Claim 13
Dependent Claim
40 words
A method according to claim 10, wherein the processed paint, size or primer dispersed in said solution is further allowed to settle to remove at least partially said denatured paint, size or primer from the solution which may be recirculated.
Claim 14
Dependent Claim
20 words
A method according to claim 10, wherein said solution contains about 2 to about 5 g/l of an alkaline agent.
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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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |