Polyamide having --NH--(CH.sub.2).sub.4 --CH(NRR')--CO--units
US4297477A · kind A · utility
3Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1979 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Dec 31, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided are polyamides having properties which make them useful as adhesives, sizing agents, paper strength enhancers and as resins. These polyamides are prepared by heating an alpha-(N,N-disubstituted amino)-E-caprolactam, alone or in combination with one or more comonomers, in the presence of an anionic polymerization catalyst, and are characterized by a repeating unit reprsented by the formula ##STR1## wherein R and R' are each a lower alkyl group or a cyclic amine residue, and also having a relative viscosity of at leasrt 1.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.