Cationic aminoplastic resin, preparation process and application thereof to water treatment
US4481116A · kind A · utility
10Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1982 |
| Grant date | Nov 6, 1984 |
| Priority date | — |
| Expiry date | Dec 9, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G12/32
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A novel cationic aminoplastic water-dispersible resin based on melamine, formaldehyde and glyoxal salified by a mineral or organic protonic acid, or by a mixture of such acids, selected from the group comprising hydrochloric, nitric, orthophosphoric, acetic, formic acids; it contains molar ratios, for 1 mole of melamine, of 2 to 4 moles of formaldehyde, 0.1 to 3 moles of glyoxal and 0.5 to 1 mole of mineral or organic protonic acid, or the equivalent quantity of a mixture thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.