Synthesis of creping aids based on polyamides containing methyl bis(3-aminopropylamine)
US5338807A · kind A · utility
64Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Dec 23, 1991 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Dec 23, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/146
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A creping aid comprising the reaction product of a polyamide of a dibasic acid or of the ester of an aliphatic dibasic acid and methyl bis(3-aminopropylamine) with epichlorohydrin in a mole ratio of the polyamide to the epichlorohydrin between about 1:0.1 and about 1:0.33, and a composition comprising an aqueous solution of the creping aid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.