ES8704536A1 - Procedimiento para la obtencion de suspensiones electroviscosas de gel de silice y aceite de silicona. - Google Patents

Procedimiento para la obtencion de suspensiones electroviscosas de gel de silice y aceite de silicona.

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Publication number
ES8704536A1
ES8704536A1 ES545527A ES545527A ES8704536A1 ES 8704536 A1 ES8704536 A1 ES 8704536A1 ES 545527 A ES545527 A ES 545527A ES 545527 A ES545527 A ES 545527A ES 8704536 A1 ES8704536 A1 ES 8704536A1
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Spain
Prior art keywords
dispersant
electroviscous
silica gel
weight
functional
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES545527A
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English (en)
Other versions
ES545527A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metzeler Kautschuk GmbH
Bayer AG
Metzeler Kautschuk AG
Original Assignee
Metzeler Kautschuk GmbH
Bayer AG
Metzeler Kautschuk AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metzeler Kautschuk GmbH, Bayer AG, Metzeler Kautschuk AG filed Critical Metzeler Kautschuk GmbH
Publication of ES8704536A1 publication Critical patent/ES8704536A1/es
Publication of ES545527A0 publication Critical patent/ES545527A0/es
Expired legal-status Critical Current

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    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/001—Electrorheological fluids; smart fluids
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
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    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
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    • Y10S516/01—Wetting, emulsifying, dispersing, or stabilizing agents
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Abstract

PROCEDIMIENTO PARA LA OBTENCION DE SUSPENSIONES ELECTROVISCOSAS DE GEL DE SILICE Y DE ACEITE DE SILICONA. COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, SE OBTIENE UN DISPERSANTE A PARTIR DE POLISILOXANOS AMINO-HIDROXI-ACETOXI- O ALCOXIFUNCIONALES, CON UN PESO MOLECULAR SUPERIOR A 800, MEDIANTE COHIDROLISIS DE LOS SILANOS ADECUADOS O EQUILIBRADO DE SILOXANOS CICLICOS CON SILANOS ADECUADOS; SEGUNDA, SE PREPARA UNA DISPERSION A PARTIR DE UNA DETERMINADA CANTIDAD DE ACEITE DE SILICONA AL QUE SE LE AÑADE UNA PARTE O LA TOTALIDAD DEL DISPERSANTE PREPARADO; Y POR ULTIMO, SE COMPLETA LA DISPERSION AGRAGANDOLE BAJO CONTINUA AGITACION UN GEL DE SILICE, EN CASO DADO, JUNTO CON EL RESTO DEL DISPERSANTE. DE APLICACION EN ACOPLAMIENTOS, VALVULAS HIDRAULICAS, AMORTIGUADORES DE GOLPES Y EN DISPOSITIVOS PARA POSICIONAR Y FIJAR HERRAMIENTAS.
ES545527A 1984-07-26 1985-07-24 Procedimiento para la obtencion de suspensiones electroviscosas de gel de silice y aceite de silicona. Expired ES8704536A1 (es)

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DE19843427499 DE3427499A1 (de) 1984-07-26 1984-07-26 Elektroviskose fluessigkeiten

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ES8704536A1 true ES8704536A1 (es) 1987-04-01
ES545527A0 ES545527A0 (es) 1987-04-01

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BR8503538A (pt) 1986-04-22
CA1255091A (en) 1989-06-06
EP0170939B1 (de) 1988-07-20
ZA855611B (en) 1986-03-26
ATE35824T1 (de) 1988-08-15
AU575416B2 (en) 1988-07-28
NO852800L (no) 1986-01-27
KR860001180A (ko) 1986-02-24
JPS6144998A (ja) 1986-03-04
FI78500C (fi) 1989-08-10
NO165728C (no) 1991-03-27
KR920001052B1 (ko) 1992-02-01
FI78500B (fi) 1989-04-28
US4645614A (en) 1987-02-24
ES545527A0 (es) 1987-04-01
DK338085A (da) 1986-01-27
EP0170939A1 (de) 1986-02-12
DK338085D0 (da) 1985-07-24
FI852892L (fi) 1986-01-27
DK162106B (da) 1991-09-16
DK162106C (da) 1992-02-17
FI852892A0 (fi) 1985-07-24
AU4528485A (en) 1986-01-30
DE3427499A1 (de) 1986-02-13
NO165728B (no) 1990-12-17
JPH0339560B2 (es) 1991-06-14
DE3563856D1 (en) 1988-08-25

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