Novel polymers from aminated polyethers and formaldehyde
US4839460A · kind A · utility
21Cited by
16References
23Claims
0Family size
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Key dates
| Filing date | Feb 25, 1988 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Feb 25, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G12/46
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the preparation of novel polymers comprises reacting a primary polyether polyamine of the formula EQU A(E.sub.p NH.sub.2).sub.m, wherein A is the residue of a polyether initiator having m initiator groups, E is an ether moiety from an oxirane compound, p is 5-90 and m is 2-8; with an aqueous solution of formaldehyde or with paraformaldehyde in the absence of a diluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.