Dispersants for coating compositions isocyanatoalkylacrylates as inorganic pigment dispersant on metal substrates
US4369232A · kind A · utility
9Cited by
8References
38Claims
0Family size
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Inventor
Key dates
| Filing date | Dec 23, 1980 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Dec 23, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31609
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Dispersants which improve the gloss of acrylic paints are prepared by reacting the isocyanate groups of monomeric polyisocyanates or isocyanate acrylate polymers with (1) fatty amines, (2) lower alkylamines or alkanolamines and (3), optionally, aminosilanes. A formula for the dispersants may be written as: ##STR1## isocyanate residue, A is fatty amine residue with a=20-80, B is lower alkylamine or alkanolamine residue with b=80-20, and C is aminosilane residue with c=0-40, the sum of a+b+c=100, the (mole) percentage of isocyanate groups replaced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.