Title:
ORGANOPOLYSILOXANE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3844788
Kind Code:
B2
Abstract:
PURPOSE: To obtain an organopolysiloxane which can be used as a modified silicone sealant or the like as well as a modified silicone oil by subjecting two specified silane compounds to a hydrolysis reaction and a condensation reaction in a hydrophilic solvent.
CONSTITUTION: A tetraalkoxyl functional silane and a 3- glycidoxypropylalkyldialkoxysilane are hydrolyzed in the presence of an organotin condensation catalyst and an acid hydrolysis catalyst in a hydrophilic solvent or a mixed solvent containing a hydrophilic solvent with water in an amount 3-4 times as large as the number of moles of the silanes to obtain an organopolysiloxane represented by the formula (wherein X is 1.5-0.5; (n) and (m) are each 1-10; and R is a 1-8C saturated hydrocarbon group or alkenyl). While a conventional methylpolysiloxane is not soluble in or does not have an affinity for an organic solvent or an organic resin, the organopolysiloxane is soluble in various organic solvents and has an affinity for various organic resins. Therefore, it can find wide applications such as a silicone for release paper, an adhesive sealing material, and a modified silicone sealant as well as a modified silicone oil.
Inventors:
Ogawa wins
Application Number:
JP30989793A
Publication Date:
November 15, 2006
Filing Date:
November 16, 1993
Export Citation:
Assignee:
Chisso Co., Ltd.
International Classes:
C08G77/02; C08G77/14; C08G77/22; (IPC1-7): C08G77/02; C08G77/14
Domestic Patent References:
| JP7292108A |
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