US4626567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-resistant clear and colored acrylic latex sealant
Assignee: WASSALL USA ACQUISITION Inc A Corp OF
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Filing: 1985-10-25
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Granted: 1986-12-02
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Expires: 2005-10-25
Abstract
Abstract An acrylic copolymer latex sealant composition, which comprises an acrylic copolymer having a glass transition temperature not exceeding about -0 DEG C., a hydrolyzed organoaminosilane, an anionic, non-ionic or amphoteric surfactant, water, and at least about 0.5% by weight silica, based on the total amount of the composition.
Inventors
- 👤 Wei T. Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:56
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08K5/544; C08K3/00; C08K3/34; C08K3/36; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C08K2201/00; C08K2201/002; C08K2201/005; C08L; C08L2666/00; C08L2666/28; C08L2666/54
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
44 words
An acrylic copolymer latex sealant composition, which comprises an acrylic copolymer having a glass transition temperature not exceeding about 0° C., an organoaminosilane, at least about 0.5% silica, based on the total weight of the composition, an anionic, non-ionic or amphoteric surfactant, and water.
Claim 2
Dependent Claim
44 words
An acrylic copolymer latex sealant composition, which comprises an acrylic copolymer having a glass transition temperature not exceeding about 0° C., an organoaminosilane, at least about 0.5% silica, based on the total weight of the composition, an anionic, non-ionic or amphoteric surfactant, and water.
Claim 3
Dependent Claim
14 words
The composition according to claim 1, wherein said silica is a hydrophillic fumed silica.
Claim 4
Dependent Claim
22 words
The composition according to claim 2, wherein said acrylic copolymer has a glass transition temperature of about -10° to about -30° C.
Claim 5
Dependent Claim
25 words
The composition according to claim 1, wherein said acrylic copolymer is a copolymer of an alkyl acrylate or methacrylate copolymerized with an ethylenically unsaturated comonomer.
Claim 6
Dependent Claim
27 words
The composition according to claim 4, wherein said comonomer comprises acrylic acid, methacrylic acid, itaconic acid or N-methylol acrylamide or a mixture of two or more thereof.
Claim 7
Dependent Claim
25 words
The composition according to claim 5, wherein said alkyl acrylate or methacrylate has from about 1 to about 8 carbon atoms in the alkyl moiety.
Claim 8
Dependent Claim
48 words
The composition according to claim 1, wherein said organoaminosilane is of the formula: ##STR2## wherein R is alkyl, aryl or alkaryl; X is alkoxy of 1 to 8 carbon atoms; x is 0, 1 or 2; y is 1 to 6; and z is 0, 1 or 2.
Claim 9
Dependent Claim
23 words
The composition according to claim 7, wherein z is 0, y is 3 and X is alkoxy of 1 to 6 carbon atoms.
Claim 10
Dependent Claim
14 words
The composition according to claim 8, wherein said organoaminosilane is gamma-aminopropyltrimethoxysilane, N-(beta-aminoethyl)-gamma-aminopropyltrimethoxysilane or N'-(beta-aminoethyl)-N-(beta-aminoethyl)-gamma-aminopropyltrimethoxysilane
Claim 11
Dependent Claim
11 words
The composition according to claim 1, which includes a non-ionic surfactant.
Claim 12
Dependent Claim
47 words
The composition according to claim 1, comprising from about 20 to about 65% of said acrylic copolymer, from about 0.1 to about 5% of said organoaminosilane, and from about 0.5 to about 5% of said silica, all by weight based on the weight of the total composition.
Claim 13
Dependent Claim
19 words
The composition according to claim 11, wherein said silica has a particle size of up to about 50 millimicrons.
Claim 14
Dependent Claim
11 words
The composition according to claim 12, which includes a non-ionic surfactant.
Claim 15
Dependent Claim
32 words
The composition according to claim 13, herein said non-ionic surfactant is present in an amount of from about 0.1 to about 5% by weight, based on the weight of the total composition.
Claim 16
Dependent Claim
25 words
The composition according to claim 14, wherein said acrylic copolymer is a copolymer of an alkyl acrylate or methacrylate copolymerized with an ethylenically unsaturated comonomer.
Claim 17
Dependent Claim
27 words
The composition according to claim 15, wherein said comononer comprises acrylic acid, methacrylic acid, itaconic acid or N-methylol acrylamide or a mixture of two or more thereof.
Claim 18
Dependent Claim
14 words
The composition according to claim 16, wherein said silica is a hydrophillic fumed silica.
Claim 19
Dependent Claim
19 words
The composition according to claim 17, wherein the amount of said silica is from about 0.85 to about 3.5%.
Claim 20
Dependent Claim
21 words
The composition according to claim 18, wherein said silica has a particle size of from about 5 to about 30 millimicrons.
Claim 21
Dependent Claim
9 words
The composition according to claim 1, which is clear.
Claim 22
Dependent Claim
9 words
The composition according to claim 1, which is colored.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
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