Patent Number: 6,251,981

Title: Polyalkoxysiloxane compounds, process for producing the same, and coating composition containing the same

Abstract: The following polyalkoxysiloxane compounds (A) and (B): (A): polyalkoxysiloxane compounds represented by the rational formula SiO.sub.x (OR.sup.1).sub.y (OR.sup.2).sub.z, wherein z/(y+z)=0.05 to 0.5 by mole, 0.5.ltoreq.x.ltoreq.1.5, 2x+y+z=4, R.sup.1 is a methyl group and/or an ethyl group, and R.sup.2 is an organic group different from R.sup.1 ; (B): polyalkoxysiloxane compounds represented by the rational formula SiO.sub.x (OR.sup.1).sub.y (OR.sup.2).sub.z, wherein 0.5.ltoreq.x.ltoreq.1.5, 2x+y+z=4, R.sup.1 is a methyl group and/or an ethyl group, and R.sup.2 is at least one of the alkyl groups having 3 to 4 carbon atoms; are provided. These polyalkoxysiloxane compounds can be used advantageously for the coat-forming compositions or aqueous emulsion-forming compositions.

Inventors: Tanaka; Seiichiro (Kitakyushu, JP), Sawai; Takeshi (Kitakyushu, JP), Kobayashi; Hiroshi (Kitakyushu, JP), Ooba; Kenji (Kitakyushu, JP), Sekiguchi; Makiko (Kitakyushu, JP), Matsuzoe; Nobuyuki (Tokyo, JP), Katsumata; Haruo (Tokyo, JP)

Assignee: Mitsubishi Chemical Company

International Classification: C08G 77/00 (20060101); C08G 77/02 (20060101); C09D 183/02 (20060101); C08K 003/20 ()

Expiration Date: 06/26/2018