Temporary wet strength resins and paper products containing same
US5008344A · kind A · utility
130Cited by
13References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 5, 1988 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Jul 5, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/455
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Temporary wet strength resins having a molecular weight of from about 40,000 to about 400,000, most preferably from about 120,000 to about 210,000, having the formula: ##STR1## wherein: A is ##STR2## and X is --O--, --NH--, OR --NCH.sub.3 --, and R is a substituted or unsubstituted aliphatic group; Y.sub.1 and Y.sub.2 are independently --H, --CH.sub.3, or a halogen; W is a nonnucleophilic, aliphatic amide; Q is a cationic monomeric unit. The mole percent of "a" ranges from about 1% to about 70%, the mole percent of "b" ranges from about 10% to about 90%; and the mole percent of "c" ranges from about 1% to about 40%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.