US4657999A
Expired / Lapsed
US
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Polymerization emulsifiers
Assignee: BASF Personal Care and Nutrition GmbH
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Filing: 1985-11-22
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Granted: 1987-04-14
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Expires: 2005-11-22
Abstract
Abstract The use of alkyl glycosides of C 8 -C 22 alkanols and reducing sugars, in which one sugar chain containing on average from 1 to 10 sugar residues attached to one another by glycoside bonds is present for every alkyl group, as co-emulsifiers or emulsifiers in the emulsion polymerization of ethylenically unsaturated monomers.
Inventors
- 👤 Rainer Hoefer
- 👤 Karl-Heinz Schmid
- 👤 Bernd Wegemund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:24
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
74 words
In a process for the emulsion polymerization of ethylenically unsaturated monomers, the improvement comprising using from about 0.5 to about 10% by weight, based on the weight of monomer, of at least one alkyl glycoside of a C 8 -C 22 alkanol and a reducing sugar in which one sugar chain having an average of from 1 to 10 sugar residues attached to each other by glycoside bonds is present for each alkyl group.
Claim 2
Dependent Claim
74 words
In a process for the emulsion polymerization of ethylenically unsaturated monomers, the improvement comprising using from about 0.5 to about 10% by weight, based on the weight of monomer, of at least one alkyl glycoside of a C 8 -C 22 alkanol and a reducing sugar in which one sugar chain having an average of from 1 to 10 sugar residues attached to each other by glycoside bonds is present for each alkyl group.
Claim 3
Dependent Claim
25 words
A process in accordance with claim 1 wherein said quantity is from about 0.5 to about 6% by weight, based on the weight of monomer.
Claim 4
Dependent Claim
33 words
A process in accordance with claim 1 wherein the at least one alkyl glycoside is an alkyl glycoside having a sugar chain containing from 1.5 to 5 sugar residues for each alkyl group.
Claim 5
Dependent Claim
31 words
A process in accordance with claim 1 wherein the at least one alkyl glycoside is an alkyl glycoside of a fatty alcohol mixture and one or both of glucose and maltose.
Claim 6
Dependent Claim
29 words
A process in accordance with claim 1 wherein the at least one alkyl glycoside is an alkyl glycoside containing alkyl groups of C 8 -C 14 fatty alcohol mixtures.
Claim 7
Dependent Claim
16 words
A process in accordance with claim 1 wherein a cationic or anionic emulsifier is also present.
Claim 8
Dependent Claim
22 words
A process in accordance with claim 1 wherein a nonionic emulsifier other than the at least one alkyl glycoside is also present.
Claim 9
Dependent Claim
22 words
A process in accordance with claim 6 wherein a nonionic emulsifier other than the at least one alkyl glycoside is also present.
Claim 10
Dependent Claim
32 words
A process in accordance with claim 6 wherein from about 10 to about 80% by weight, based on the weight of alkyl glycoside, of a cationic or anionic emulsifier is also present.
Claim 11
Dependent Claim
25 words
A process in accordance with claim 9 wherein from about 20 to about 50% by weight of a cationic or anionic emulsifier is also present.
Claim 12
Dependent Claim
49 words
A process in accordance with claim 6 wherein one or more of the following are present: a sulfocarboxylic acid, an alkyl ester thereof, a fatty alcohol (ether) sulfate, an alkyl phenol (ether) sulfate, an alkyl (aryl) sulfonate, a sulfosuccinic acid (semi)ester, a soap, and an alkyl (phenol) ether phosphate.
Claim 13
Dependent Claim
27 words
A process in accordance with claim 1 wherein said monomers are one or more of vinyl esters, vinyl ethers, (meth)acrylates, olefins, diolefins, and unsaturated halogen containing compounds.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |