Organosilicon compounds containing oligoisobutylene or polyisobutylene groups

US6040383A · kind A · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Jochen Dauth · Burghausen, DE
• Thomas Hierstetter · Burghausen, DE
• Bernward Deubzer · Burghausen, DE
• Petra Gratzl · Tecklenburg, DE

Key dates

• Filing date: Mar 31, 1998
• Grant date: Mar 21, 2000
• Expiry date: Mar 31, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/46
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention describes novel organosilicon compounds containing oligoisobutylene or polyisobutylene groups and comprising at least one unit of the formula EQU A.sub.a R.sub.b SiX.sub.c O.sub.4-(a+b+c)/2, (I) where R are identical or different and are each a monovalent, divalent or trivalent unsubstituted or substituted hydrocarbon radical, X are identical or different and are each a chlorine atom or a radical of the formula --OR.sup.1, where R.sup.1 is a hydrogen atom or an alkyl radical which may be substituted by an ether oxygen atom, or a radical of the formula EQU --R.sup.2 ([OCH(CH.sub.3)CH.sub.2 ].sub.e [OCH.sub.2 CH.sub.2 ].sub.f [O(CH.sub.2).sub.4 ].sub.g OR.sup.3).sub.y (II) where R.sup.2 is a divalent or trivalent, unsubstituted or substituted hydrocarbon radical which is substituted by one or more groups of the formulae EQU --(C.dbd.O)--O--, --(C.dbd.O)--NR.sup.3 --, --NR.sup.3 --, --O--, --S--, PA1 R.sup.3 is a hydrogen atom or R.sup.1 or a radical of the formula EQU --(C.dbd.O)--R.sup.1, PA1 e, f and g are each an integer of 0-200, with the proviso that the sum e+f+g.gtoreq.1 and y is 1 or 2, PA1 a is 0, 1 or 2, PA1 b is 0, 1, 2 or 3, PA1 c is 0, 1, 2 or 3 and the sum…