USE OF A KETAL AS A SOLVENT IN ADHESIVES AND KETAL-CONTAINING ADHESIVE COMPOSITION

摘要

The present invention relates to the use of a cyclic ketal, 2-methyl-2-ethyl-1,3-dioxolane as a solvent in adhesives, as well as an adhesive composition comprising said ketal. 2-Methyl-2-ethyl-1,3-dioxolane has high solubilization power of the polychloroprene polymer, forming solutions having high viscosity and having suitable drying time after application of a film onto a surface. Due to the good technical performance, the adhesive composition made according to the present invention is well accepted in the market, finding use to substitute compositions containing toluene or other aromatic and oxygenated solvents.

主权项

1. The use of a ketal as a solvent in adhesives, particularly for imparting suitable viscosity and drying time to adhesive compositions, characterized in that it is 2-methyl-2-ethyl-1,3-dioxolane ketal and it is present in a ratio in the range of 5 to 90% based on the total weight of the composition,
wherein the adhesive compositions are contact adhesive compositions and wherein the adhesive compositions comprising polychloroprene, synthetic resins, or mixtures thereof.