Anionic and other derivatives of non-ionic surfactants, methods for making, and uses in emulsion polymerization and polymer dispersions
US7612136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Apr 23, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/345
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An anionic surfactant concentrate and method for making includes providing compound (I) R1—OH where R1 represents a branched C6-22 radical with average branching of about 2-8 per radical; providing compound (II):where R2 represents a C8-16 radical; mixing (I) and (II); ethoxylating to obtain a reaction product; reacting with a sulfating, phosphating, or sulfitation agent to obtain R1—O—[CH2—CH2O]n-A andwhere R1 represents a branched C6-22 radical with average branching of about 2-8, R2 represents a C8-16 radical, A represents —SO3M, —PO3M, —PO3M2, —OCCH2CH(SO3Na)COO—, or HOOCCH2CH(SO3Na)COO—, M represents a positive counterion, n represents a value from 0-100, and x and y each represents a value from 0-100, where the sum of x and y represents a value of at least 1 to 100 are provided. Anionic surfactant compositions containing the concentrate and methods for stabilizing are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.