US3940361A
Expired / Lapsed
US
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Dispersions of styrene/acrylonitrile copolymers
Assignee: EIDP Inc
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Filing: 1972-10-11
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Granted: 1976-02-24
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Expires: 1992-10-11
Abstract
Abstract Coating compositions containing copolymers of ethylenically unsaturated aromatic monomers and ethylenically unsaturated nitrile monomers are useful for coating paper, plastics, metals and other packaging materials. These compositions, when blended with vinyl polymers, show improved flexibility and adhesion.
Inventors
- 👤 Eugene G. Sommerfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:13
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/095; C08K; C08K5/00; C08K5/04; C08L; C08L27/00; C08L27/02; C08L27/04; C08L33/00; C08L33/18; C08J2325/00; C08J2325/02; C08J2325/04; C08J2325/08; C08J2325/12
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
118 words
A composition comprising A. 75-100 percent, by weight of solids, of a particulate copolymer of 1. 25-75 percent, by weight, of at least one monomer represented by the structure ##SPC2## where R, R 1 , R 2 and R 3 are hydrogen or an alkyl radical of 1-5 carbon atoms; and 2. 25-75 percent, by weight, of at least one ethylenically unsaturated nitrile monomer, the total of (1) and (2) being 100 percent; and B. an organic liquid carrier comprising 1. 20-80 percent, by weight, of ethylene carbonate or propylene carbonate, and 2. 20-80 percent, by weight, of an alkanol of 1-4 carbon atoms, acetone, methylethyl ketone, an ether alcohol, an ester of an ether alcohol or tetrahydrofuran.
Claim 2
Dependent Claim
118 words
A composition comprising A. 75-100 percent, by weight of solids, of a particulate copolymer of 1. 25-75 percent, by weight, of at least one monomer represented by the structure ##SPC2## where R, R 1 , R 2 and R 3 are hydrogen or an alkyl radical of 1-5 carbon atoms; and 2. 25-75 percent, by weight, of at least one ethylenically unsaturated nitrile monomer, the total of (1) and (2) being 100 percent; and B. an organic liquid carrier comprising 1. 20-80 percent, by weight, of ethylene carbonate or propylene carbonate, and 2. 20-80 percent, by weight, of an alkanol of 1-4 carbon atoms, acetone, methylethyl ketone, an ether alcohol, an ester of an ether alcohol or tetrahydrofuran.
Claim 3
Dependent Claim
51 words
A composition comprising A. 75-100 percent, by weight of solids, of a particulate copolymer of 1. 25-75 percent, by weight, of at least one monomer represented by the structure ##SPC3## where R, R 1 , R 2 and R 3 are hydrogen or an alkyl radical of 1-5 carbon atoms; and
Claim 4
Dependent Claim
51 words
A composition comprising A. 75-100 percent, by weight of solids, of a particulate copolymer of 1. 25-75 percent, by weight, of at least one monomer represented by the structure ##SPC3## where R, R 1 , R 2 and R 3 are hydrogen or an alkyl radical of 1-5 carbon atoms; and
Claim 5
Dependent Claim
91 words
25-75 percent, by weight, of at least one ethylenically unsaturated nitrile monomer, the total of (1) and (2) being 100 percent; and B. 0.25-25 percent, by weight of solids, of a halovinyl polymer or halovinylidene polymer; and C. an organic liquid carrier comprising 1. 20-80 percent, by weight, of ethylene carbonate or propylene carbonate, and 2. 20-80 percent, by weight, of an alkanol of 1-4 carbon atoms, acetone, methylethyl ketone, an ether alcohol, an ester of an ether alcohol or tetrahydrofuran, the organic liquid being a solvent or suspendant for (B).
Claim 6
Dependent Claim
91 words
25-75 percent, by weight, of at least one ethylenically unsaturated nitrile monomer, the total of (1) and (2) being 100 percent; and B. 0.25-25 percent, by weight of solids, of a halovinyl polymer or halovinylidene polymer; and C. an organic liquid carrier comprising 1. 20-80 percent, by weight, of ethylene carbonate or propylene carbonate, and 2. 20-80 percent, by weight, of an alkanol of 1-4 carbon atoms, acetone, methylethyl ketone, an ether alcohol, an ester of an ether alcohol or tetrahydrofuran, the organic liquid being a solvent or suspendant for (B).
Claim 7
Dependent Claim
9 words
The composition of claim 1 where (A)(1) is styrene.
Claim 8
Dependent Claim
9 words
The composition of claim 2 where (A)(1) is styrene.
Claim 9
Dependent Claim
38 words
The composition of claim 1 where (A)(2) is represented by the structure ##EQU2## where R and R 1 are hydrogen, an alkyl radical of 1-18 carbon atoms, tolyl, benzyl or phenyl, and R 2 is hydrogen or methyl.
Claim 10
Dependent Claim
38 words
The composition of claim 2 where (A)(2) is represented by the structure ##EQU3## where R and R 1 are hydrogen, an alkyl radical of 1-18 carbon atoms, tolyl, benzyl or phenyl, and R 2 is hydrogen or methyl.
Claim 11
Dependent Claim
12 words
The composition of claim 5 where the nitrile is acylonitrile or methacrylonitrile.
Claim 12
Dependent Claim
12 words
The composition of claim 6 where the nitrile is acrylonitrile or methacrylonitrile.
Claim 13
Dependent Claim
9 words
The composition of claim 1 where (B)(2) is isopropanol.
Claim 14
Dependent Claim
9 words
The composition of claim 2 where (C)(2) is isopropanol.
Claim 15
Dependent Claim
16 words
The composition of claim 1 where (A)(1) is styrene, (A)(2) is acrylonitrile and (B)(2) is isopropanol.
Claim 16
Dependent Claim
16 words
The composition of claim 2 where (A)(1) is styrene, (A)(2) is acrylonitrile and (C)(2) is isopropanol.
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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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |