US5037877A
Expired / Lapsed
US
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Polymer based preparation for the surface protection of zinc against white rust
Assignee: Produits Chimiques Auxiliaires et de Synthese SA
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Filing: 1990-08-06
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Granted: 1991-08-06
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Expires: 2010-08-06
Abstract
Abstract A process for producing an acrylic and/or methacrylic polymer based preparation for the surface treatment of zinc consists in polymerizing at least one (meth)acrylic acid and at least one (meth)acrylate in a mixture of organic cosolvents. The preparation is then formed from the resultant copolymer in the cosolvents by dilution in a quantity of water and preferably an excess of water with respect to the cosolvents in the polymerization stage.
Inventors
- 👤 Jean P. Kerherve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:37
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/07; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064; C23; C23C; C23C2/00; C23C2/26; C08J2333/00; C08J2333/04; C08J2333/06
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
84 words
A process for preparing a solution for the surface treatment of zinc, comprising: (a) forming a preparation comprising a copolymer, by polymerizing, in a mixture of organic cosolvents, at least one first monomer selected from the group consisting of acrylic acid and methacrylic acid, and at least one second monomer selected from the group consisting of acrylates and methacrylates; and (b) subsequent to polymerizing said at least one first monomer and said at least one second monomer, diluting said preparation with an aqueous medium.
Claim 2
Dependent Claim
84 words
A process for preparing a solution for the surface treatment of zinc, comprising: (a) forming a preparation comprising a copolymer, by polymerizing, in a mixture of organic cosolvents, at least one first monomer selected from the group consisting of acrylic acid and methacrylic acid, and at least one second monomer selected from the group consisting of acrylates and methacrylates; and (b) subsequent to polymerizing said at least one first monomer and said at least one second monomer, diluting said preparation with an aqueous medium.
Claim 3
Dependent Claim
25 words
The process according to claim 1, wherein said aqueous medium comprises an excess of said aqueous medium with respect to said mixture of organic cosolvents.
Claim 4
Dependent Claim
13 words
The process according to claim 1, wherein said aqueous medium consists of water.
Claim 5
Dependent Claim
19 words
The process according to claim 1, wherein said aqueous medium comprises a solution of water and an amino compound.
Claim 6
Dependent Claim
20 words
The process according to claim 4, wherein said amino compound is selected from the group consisting of ammonia and morpholine.
Claim 7
Dependent Claim
29 words
The process according to claim 1, wherein said at least one second monomer is selected from the group consisting of C 1-22 alkyl acrylates and C 1-22 alkyl methacrylates.
Claim 8
Dependent Claim
25 words
The process according to claim 1, wherein said at least one first monomer and said at least one second monomer consist of two different monomers.
Claim 9
Dependent Claim
32 words
The process according to claim 1, wherein said at least one first monomer and said at least one second monomer consist of three different monomers, whereby said resulting copolymer comprises a terpolymer.
Claim 10
Dependent Claim
29 words
The process according to claim 8, wherein at least one of said at least one second monomer is selected from the group consisting of lauryl acrylate and lauryl methacrylate.
Claim 11
Dependent Claim
18 words
The process according to claim 8, wherein said at least one second monomer consists of two different monomers.
Claim 12
Dependent Claim
69 words
The process according to claim 10, wherein said at least one first monomer is one monomer selected from the group consisting of acrylic acid and methacrylic acid, one of said at least one second monomer is selected from the group consisting of butyl acrylate and butyl methacrylate, and the other of said at least one second monomer is selected from the group consisting of lauryl acrylate and lauryl methacrylate.
Claim 13
Dependent Claim
43 words
The process according to claim 11, wherein said at least one first monomer consists of methacrylic acid, one of said at least one second monomer consists of butyl methacrylate, and the other of said at least one second monomer consists of lauryl methacrylate.
Claim 14
Dependent Claim
22 words
The process according to claim 1, wherein the resulting solution comprises 1 to 50 g. of solids per 100 g of solution.
Claim 15
Dependent Claim
24 words
The process according to claim 1, wherein the resulting copolymer has an acid number of 50 to 150 mg. KOH per gram of polymer.
Claim 16
Dependent Claim
24 words
The process according to claim 14, wherein the resulting copolymer has an acid number of 90 to 120 mg. KOH per gram of polymer.
Claim 17
Dependent Claim
21 words
The process according to claim 1, wherein the resulting copolymer has a number average molecular weight of between 2,000 and 20,000.
Claim 18
Dependent Claim
21 words
The process according to claim 16, wherein the resulting copolymer has a number average molecular weight of between 3,000 and 5,000.
Claim 19
Dependent Claim
58 words
A solution for the surface protection of zinc against white rust, comprising: (a) a copolymer comprising at least one first monomer selected from the group consisting of acrylic acid and methacrylic acid, and at least one second monomer selected from the group consisting of acrylates and methacrylates; (b) a mixture of organic cosolvents; and (c) an aqueous medium.
Claim 20
Dependent Claim
58 words
A solution for the surface protection of zinc against white rust, comprising: (a) a copolymer comprising at least one first monomer selected from the group consisting of acrylic acid and methacrylic acid, and at least one second monomer selected from the group consisting of acrylates and methacrylates; (b) a mixture of organic cosolvents; and (c) an aqueous medium.
Claim 21
Dependent Claim
25 words
The solution according to claim 18, wherein said aqueous medium comprises an excess of said aqueous medium with respect to said mixture of organic cosolvents.
Claim 22
Dependent Claim
19 words
The solution according to claim 18, wherein said aqueous medium comprises a solution of water and an amino compound.
Claim 23
Dependent Claim
14 words
The solution according to claim 18, wherein said copolymer consists of two different monomers.
Claim 24
Dependent Claim
12 words
The solution according to claim 18, wherein said copolymer comprises a terpolymer.
Claim 25
Dependent Claim
26 words
The solution according to claim 22, wherein said terpolymer comprises at least one second monomer selected from the group consisting of lauryl acrylate and lauryl methacrylate.
Claim 26
Dependent Claim
18 words
The solution according to claim 22, wherein said at least one second monomer consists of two different monomers.
Claim 27
Dependent Claim
59 words
The solution according to claim 24, wherein said terpolymer comprises at least one first monomer selected from the group consisting of acrylic acid and methacrylic acid, at least one second monomer selected from the group consisting of butyl acrylate and butyl methacrylate, and at least one second monomer selected from the group consisting of lauryl acrylate and lauryl methacrylate.
Claim 28
Dependent Claim
17 words
The solution according to claim 25, wherein said terpolymer comprises methacrylic acid, butyl methacrylate, and lauryl methacrylate.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-08-05 | 1995-02-04 | 1995-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-05 | 1999-02-04 | 1999-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-05 | 2003-02-04 | 2003-08-06 | $7700.00 | Window Closed / Lapsed |