Tissue paper treated with polyhydroxy fatty acid amide softener systems that are biodegradable
US5354425A · kind A · utility
53Cited by
45References
26Claims
0Family size
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Key dates
| Filing date | Dec 13, 1993 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Dec 13, 2013 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/24
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Tissue papers, in particular pattern densified tissue papers, having an enhanced tactile sense of softness when treated with certain polyhydroxy fatty acid amide softener systems that are biodegradable are disclosed. The polyhydroxy fatty acid amides have the formula: ##STR1## wherein R.sup.1 is H, C.sub.1 -C hydrocarbyl, 2-hydroxyethyl, 2-hydroxypropyl, methoxyethyl, methoxypropyl or a mixture thereof; R.sup.2 is a C.sub.5 -C.sub.31 hydrocarbyl group; and Z is a polyhydroxyhydrocarbyl moiety having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.