Process for the production of aqueous based inner tire release compositions
US4244742A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1979 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Jun 15, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/01
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention concerns an improvement in the process for the production of dispersions of diorganopolysiloxanes and lubricant-acting inorganic silicates in water, whereby these dispersions contain, in addition to the above-mentioned substances, lecithin and nonionic emulsifiers, as well as solvents, ionic emulsifiers, lubricants other than inorganic silicates and diorganopolysiloxane, bactericides, fungicides, thickeners, antifoaming agents, rust inhibitors and dyes. The improvement is achieved by emulsifying the lecithin, nonionic emulsifier and water with each other before this mixture is mixed with at least 80% by weight of the diorganopolysiloxane contained in the finished dispersion, and, optionally, lubricants other than inorganic silicates and diorganopolysiloxanes. Furthermore, the invention concerns the application of the dispersions produced according to the invention as release agents, especially as inner tire release agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.