Loading patent…
AssigneeTaoka Chemical Co., Ltd.
InventorsYukinori Nishino, Hiroaki Yamamoto, Chiaki Hata
Estimating the term…
The present invention provides an ethyl-2-cyanoacrylate adhesive composition obtained as a result of significant improvement on conventional problems, that is, irritating odor and whitening of conventional ethyl-2-cyanoacrylate adhesive compositions. According to a method of the present invention for purifying an ethyl-2-cyanoacrylate adhesive composition, a sum total of an acrylonitrile content and an ethanol content is arranged to be in a range of 1 ppm to 150 ppm, by carrying out deaeration at the same time as injection of an inactive gas at a reduced pressure in a range of 100 Pa to 10000 Pa at a temperature in a range of 5° C. to 50° C. Thereby, the method of the present invention allows improving irritating odor and whitening.
A method for purifying an ethyl-2-cyanoacrylate adhesive composition, the method comprising carrying out deaeration of the ethyl-2-cyanoacrylate adhesive composition at the same time as injection of an inactive gas at a reduced pressure in a range of 100 Pa to 10000 Pa at a temperature in a range of 5° C. to 50° C. so that the ethyl-2-cyanoacrylate adhesive composition has a sum total of an acrylonitrile content and an ethanol content in a range of 1 ppm to 150 ppm.
An ethyl-2-cyanoacrylate adhesive composition having a sum total of an acrylonitrile content and an ethanol content in a range of 1 ppm to 150 ppm.
Dependencies are inferred from the claim text.