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公开(公告)号：EP4268921A1
公开(公告)日：2023-11-01
申请号：EP21915205.5
申请日：2021-12-23
申请人： Dow Toray Co., Ltd.
摘要： Provide a silicone based anti-foaming agent oil compound that has not only superior anti-foaming speed but also anti-foaming performance that does not degrade with repeated use or use over a long period, including:
(A) an essentially hydrophobic organopolysiloxane with a viscosity at 25°C of 2,500 to 50,000 mPas: 20 to 80 parts by mass;
(B) a hydrophobic organopolysiloxane or cyclic organopolysiloxane having silanol groups at least at both terminals: 20 to 80 parts by mass;
(C) a silane or silane condensation product: 1 to 10 parts by mass; and
(D) a fine powder silica with a specific surface area of 50 m 2 /g or more: 2 to 10 parts by mass; where
the total amount of (A) and (B) combined is 100 parts by mass;
and to provide a method for manufacturing thereof.-
公开(公告)号：EP3530703A1
公开(公告)日：2019-08-28
申请号：EP17861339.4
申请日：2017-10-06
申请人： Dow Toray Co., Ltd.
摘要： [Problem] To provide a polyether-modified silicone composition that can be supplied in large quantities at low cost, that is very safe and environmentally friendly, and that has excellent quality in terms of mixing stability, handling and workability, and storage stability in compositions containing a dispersion medium, and that can be used in applications such as surfactants and foam stabilizers, to provide applications for this polyether-modified silicone composition, and to provide a manufacturing method for this polyether-modified silicone composition. [Solution] Provided is a polyether-modified silicone composition comprising (A) a polyether-modified silicone, and (B) a monool organic compound selected from (B1) a glycol ether compound having a hydrogen atom substituted by an alkyl group having from 2 to 8 carbon atoms at one end, a secondary alcoholic hydroxy group at the other end, from 2 to 3 repeating oxyalkylene units having from 2 to 4 carbon atoms, and (B2) a tripropylene glycol monomethyl ether, wherein isopropyl alcohol does not exceed 1 mass% of the entire composition; applications for this composition; and a manufacturing method for this composition.
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