Alkylphenol ethoxylate-free surfactant package for polymer emulsions
US6974520B2 · kind B2 · utility
2Cited by
17References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2005 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Jun 15, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention is directed to formation of a creped nonwoven web. The creped web is formed in a creping process using a polymer emulsion binder formed in an alkylphenol ethoxylate-free surfactant system. The surfactant system comprises a combination of a specific active anionic surfactant (sodium laureth sulfate containing 1 to 12 moles of ethylene oxide) and a specific active nonionic surfactant (a secondary alcohol ethoxylate containing 7 to 30 moles of ethylene oxide or an ethoxylated branched primary alcohol containing 3 to 30 moles of ethylene oxide.)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.