Patent US4329268A successfully refreshed from Google Patents.
US4329268A
Expired / Lapsed
US
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Polyethyleneoxy sulfonate surfactants
Assignee: Rhone Poulenc Surfactants and Specialties LP
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Filing: 1981-05-04
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Granted: 1982-05-11
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Expires: 2001-05-04
Abstract
Abstract High acid content latexes can be produced through the use of novel polyethyleneoxy sulfonates surfactants. An aqueous emulsion can be produced from the reaction product of vinyl acid monomer and another copolymerizable monomer or monomers. The vinyl acid monomer being present in an amount equal to about 5% to about 50% by weight based on total weight of the monomers and the surfactant is present in an amount equal to about 0.1 to about 10 weight percent based on the total weight of monomers and is represented by the formula: R.sub.1 (R.sub.2).sub.y O(CH.sub.2 CH.sub.2 O).sub.n-1 CH.sub.2 CH.sub.2 SO 3 Me wherein: R 1 is an alkyl having at least 6 carbon atoms; R 2 is an aryl group; n is at least 3; and Me is NH 4 , Na, Li or K. Y is 0 or 1.
Inventors
- 👤 Paritosh M. Chakrabarti
- 👤 Darrell G. Kirchner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:48
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F218/08; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/26; C08F220/00; C08F220/02; C08F220/04; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/321; C08G65/326; C09; C09K; C09K23/00; C09K23/12
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
143 words
An aqueous emulsion comprising the reaction product of a vinyl acid monomer and at least a second copolymerizable monomer, said vinyl acid monomer being present in an amount equal to about 5% to about 50% by weight based on a total weight of said vinyl acid monomer and said at least a second copolymerizable monomer, said surfactant being present in an amount equal to about 0.1 to about 10 weight percent based on the total weight of said vinyl acid monomer and said at least a second copolymerizable monomer, said surfactant being represented by the formula: R.sub.1 (R.sub.2).sub.y --O--(CH.sub.2 CH.sub.2 O).sub.n-1 CH.sub.2 CH.sub.2 SO.sub.3 Me wherein; y is 0 or 1; R 1 is an alkyl having at least 6 carbon atoms; R 2 is an aryl group; n is at least 3; and Me is NH 4 , Na, Li and K.
Claim 2
Dependent Claim
143 words
An aqueous emulsion comprising the reaction product of a vinyl acid monomer and at least a second copolymerizable monomer, said vinyl acid monomer being present in an amount equal to about 5% to about 50% by weight based on a total weight of said vinyl acid monomer and said at least a second copolymerizable monomer, said surfactant being present in an amount equal to about 0.1 to about 10 weight percent based on the total weight of said vinyl acid monomer and said at least a second copolymerizable monomer, said surfactant being represented by the formula: R.sub.1 (R.sub.2).sub.y --O--(CH.sub.2 CH.sub.2 O).sub.n-1 CH.sub.2 CH.sub.2 SO.sub.3 Me wherein; y is 0 or 1; R 1 is an alkyl having at least 6 carbon atoms; R 2 is an aryl group; n is at least 3; and Me is NH 4 , Na, Li and K.
Claim 3
Dependent Claim
34 words
The aqueous emulsion of claim 1, wherein said at least a second monomer comprises from about 95% to about 50% of a monomer selected from the group consisting of acrylates, styrene or combinations thereof.
Claim 4
Dependent Claim
17 words
The aqueous emulsion of claim 1, wherein R 1 has from about 6 to about 18 carbons.
Claim 5
Dependent Claim
32 words
The aqueous emulsion of claim 1, where R 1 is a dialkyl having no greater than about 25 carbons, each alkyl group of said dialkyl having no greater than about 12 carbons.
Claim 6
Dependent Claim
10 words
The aqueous emulsion of claim 1, wherein Me is Na.
Claim 7
Dependent Claim
15 words
The aqueous emulsion of claim 1, wherein n is from about 6 to about 20.
Claim 8
Dependent Claim
14 words
The aqueous emulsion of claim 1, wherein said vinylic monomer contains an acrylic acid.
Claim 9
Independent Claim
101 words
The method of producing a stable aqueous emulsion from a vinylic acid monomer and at least a second copolymerizable monomer, comprising the steps of contacting a plurality of copolymerizable monomers and a surfactant, at an elevated temperature and for a time period sufficient to copolymerize said monomers, said surfactant being represented by the formula: R.sub.1 (R.sub.2).sub.y --O--(CH.sub.2 CH.sub.2 O).sub.n-1 CH.sub.2 CH.sub.2 SO.sub.3 Me wherein; Y is 0 or 1; R 1 is an alkyl having at lest 6 carbon atoms, R 2 is an aryl group; n is at least 3; and Me is NH 4 , Na, Li or K.
Claim 10
Independent Claim
101 words
The method of producing a stable aqueous emulsion from a vinylic acid monomer and at least a second copolymerizable monomer, comprising the steps of contacting a plurality of copolymerizable monomers and a surfactant, at an elevated temperature and for a time period sufficient to copolymerize said monomers, said surfactant being represented by the formula: R.sub.1 (R.sub.2).sub.y --O--(CH.sub.2 CH.sub.2 O).sub.n-1 CH.sub.2 CH.sub.2 SO.sub.3 Me wherein; Y is 0 or 1; R 1 is an alkyl having at lest 6 carbon atoms, R 2 is an aryl group; n is at least 3; and Me is NH 4 , Na, Li or K.
Claim 11
Dependent Claim
41 words
The method of producing a stable aqueous emulsion of claim 8, wherein said at least a second monomer comprises from about 95% to about 50% of a monomer selected from the group consisting of acrylates, styrene vinyl acetate or combinations thereof.
Claim 12
Dependent Claim
22 words
The method of producing a stable aqueous emulsion of claim 8, wherein R 1 has from about 6 to about 18 carbons.
Claim 13
Dependent Claim
37 words
The method of producing a stable aqueous emulsion of claim 8, where R 1 is a dialkyl having no greater than about 24 carbons, each alkyl group of said dialkyl having no greater than about 12 carbons.
Claim 14
Dependent Claim
15 words
The method of producing a stable aqueous emulsion of claim 8, wherein Me is Na.
Claim 15
Dependent Claim
20 words
The method of producing a stable aqueous emulsion of claim 8, wherein n is from about 6 to about 20.
Claim 16
Dependent Claim
20 words
The method of producing a stable aqueous emulsion of claim 8, wherein said vinylic monomer contains an acrylic acid group.
Claim 17
Dependent Claim
15 words
The aqueous emulsion of claim 2, wherein said vinylic monomer contains an acrylic acid group.
Claim 18
Dependent Claim
20 words
The method of producing a stable aqueous emulsion of claim 9, wherein said vinylic monomer contains an acrylic acid group.
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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) | 1985-05-10 | 1985-11-09 | 1986-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-10 | 1989-11-09 | 1990-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-10 | 1993-11-09 | 1994-05-11 | $7700.00 | Window Closed / Lapsed |