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1. 发明专利

CA2653516A1 PROCESS FOR MAKING AND USING FOAM CONTROL COMPOSITIONS 未知
公开(公告)号：CA2653516A1
公开(公告)日：2007-12-06
申请号：CA2653516
申请日：2007-05-17
申请人： DOW CORNING
发明人： HILBERER ALAIN , NAVET EMILIE , VERMEIRE LAURENT
IPC分类号： B01D19/04 , D21H21/12
摘要： A process for making a foam control composition comprising a cross-linked polyorganosiloxane in which is dispersed a filler, with hydrophobic surface , comprising step (A) mixing (i) a finely divided filler, (ii) a polyorganos iloxane having on at least two reactive substituents, for example on average two reactive substituents, and (iii) a polyorganosiloxane having at least t hree reactive substituents, capable of addition reaction via hydrosilylation ; (B) hydrosilylation reaction of components (ii) and (iii) until the mixtur e at least partially gels, followed by applying shearing forces to this at l east partially gelled mixture. Optionally step (A) comprises a diluent or so lvent and after step (B) an emulsification step is carried out to make the f oam control composition into an O/W emulsion. Also a process for controlling foam in an aqueous environment by using a foam control composition accordin g to the invention, selected from inks, coatings, paints, detergents, black liquor of from those encountered during pulp and paper manufacture, waste wa ter treatment, textile dyeing processes or the scrubbing of natural gas.

2. 发明专利

ZA200809530B Process for making and using foam control compositions 未知
公开(公告)号：ZA200809530B
公开(公告)日：2010-06-30
申请号：ZA200809530
申请日：2008-11-07
申请人： DOW CORNING
发明人： HILBERER ALAIN , NAVET EMILIE , VERMEIRE LAURENT
IPC分类号： B01D20100101 , D21H20100101
摘要： A process for making a foam control composition comprising a cross-linked polyorganosiloxane in which is dispersed a filler, with hydrophobic surface, comprising step (A) mixing (i) a finely divided filler, (ii) a polyorganosiloxane having on at least two reactive substituents, for example on average two reactive substituents, and (iii) a polyorganosiloxane having at least three reactive substituents, capable of addition reaction via hydrosilylation; (B) hydrosilylation reaction of components (ii) and (iii) until the mixture at least partially gels, followed by applying shearing forces to this at least partially gelled mixture. Optionally step (A) comprises a diluent or solvent and after step (B) an emulsification step is carried out to make the foam control composition into an O/W emulsion. Also a process for controlling foam in an aqueous environment by using a foam control composition according to the invention, selected from inks, coatings, paints, detergents, black liquor of from those encountered during pulp and paper manufacture, waste water treatment, textile dyeing processes or the scrubbing of natural gas.

3. 发明专利

BRPI0712727A2 未知
公开(公告)号：BRPI0712727A2
公开(公告)日：2012-12-11
申请号：BRPI0712727
申请日：2007-05-17
申请人： DOW CORNING
发明人： HILBERER ALAIN , NAVEL EMILIE , VERMEIRE LAURENT
IPC分类号： B01D19/04 , D21H21/12
摘要： A process for making a foam control composition comprising a cross-linked polyorganosiloxane in which is dispersed a filler, with hydrophobic surface, comprising step (A) mixing (i) a finely divided filler, (ii) a polyorganosiloxane having on at least two reactive substituents, for example on average two reactive substituents, and (iii) a polyorganosiloxane having at least three reactive substituents, capable of addition reaction via hydrosilylation; (B) hydrosilylation reaction of components (ii) and (iii) until the mixture at least partially gels, followed by applying shearing forces to this at least partially gelled mixture. Optionally step (A) comprises a diluent or solvent and after step (B) an emulsification step is carried out to make the foam control composition into an O/W emulsion. Also a process for controlling foam in an aqueous environment by using a foam control composition according to the invention, selected from inks, coatings, paints, detergents, black liquor of from those encountered during pulp and paper manufacture, waste water treatment, textile dyeing processes or the scrubbing of natural gas.

4. 发明专利

CA2653516C PROCESS FOR MAKING AND USING FOAM CONTROL COMPOSITIONS 未知
公开(公告)号：CA2653516C
公开(公告)日：2012-07-10
申请号：CA2653516
申请日：2007-05-17
申请人： DOW CORNING
发明人： HILBERER ALAIN , NAVET EMILIE , VERMEIRE LAURENT
IPC分类号： B01D19/04 , D21H21/12
摘要： A process for making a foam control composition comprising a cross-linked polyorganosiloxane in which is dispersed a filler, with hydrophobic surface, comprising step (A) mixing (i) a finely divided filler, (ii) a polyorganosiloxane having on at least two reactive substituents, for example on average two reactive substituents, and (iii) a polyorganosiloxane having at least three reactive substituents, capable of addition reaction via hydrosilylation; (B) hydrosilylation reaction of components (ii) and (iii) until the mixture at least partially gels, followed by applying shearing forces to this at least partially gelled mixture. Optionally step (A) comprises a diluent or solvent and after step (B) an emulsification step is carried out to make the foam control composition into an O/W emulsion. Also a process for controlling foam in an aqueous environment by using a foam control composition according to the invention, selected from inks, coatings, paints, detergents, black liquor of from those encountered during pulp and paper manufacture, waste water treatment, textile dyeing processes or the scrubbing of natural gas.

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