Compositions containing basic metal salts and/or non-Newtonian colloidal disperse systems and vinyl aromatic containing polymers
US4728578A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1986 |
| Grant date | Mar 1, 1988 |
| Priority date | — |
| Expiry date | Aug 13, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31696
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to modified non-Newtonian colloidal disperse systems exhibiting improved thickening power, particularly when diluted. These compositions are useful as high-solids, thermosetting caulks, molding compositions, extruding compositions and the like, but are particularly suitable for use as high solids thermosetting coating compositions. These coating compositions are heat-stable and sag-resistant. The compositions of this invention comprise a mixture of PA0 (B) at least one non-Newtonian colloidal disperse system comprising PA1 (B-1) solid metal-containing colloidal particles, PA1 (B-2) a liquid dispersing medium, and PA1 (B-3) at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar substituent; and PA0 (C) at least one hydrogenated block copolymer of a vinyl aromatic monomer and an aliphatic conjugated diene. Optionally, the compositions also contain (D) a substantially inert, normally liquid diluent. The invention also relates to methods of coating metal surfaces with the compositions of the invention described above as well as comp…
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