abstract |
ACETALS ARE PREPARED BY REACTING METHOXYACETALDEHYDE WITH TETRAHYDROFURFURYL ALCOHOL OR WITH MONO LOWER ALKYL ETHERS OF MONO, DI OR TRI ETHYLENE OR PROPYLENE GLYCOLS. THESE ACETALS HAVE VALUE AS ESSENTIAL INGREDIENTS IN HYDRAULIC BRAKE FLUIDS OF THE NON-MINERAL OIL TYPE, SINCE THEY ENABLE SUCH FLUIDS TO BETTER MEET MANDATORY SPECIFICATIONS COVERING THE PERFORMANCE AND USE THEREOF. |