Process to prevent polymer scale adhesion using a two part coating
US5418302A · kind A · utility
1Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1993 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Dec 27, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/004
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process to inhibit scale adhesion to the interior of a polymerization vessel using a two part coating composition. The coating is a hydroxyanthraquinone compound used in conjunction with a water soluble salt of chitosan, applied as a solution and dried on the vessel interior. Advantages of the coating are its effective scale prevention, unaltered color of the polymer product and low toxicity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.