Process for preparing highly viscous organopolysiloxanes

Details Process for preparing highly viscous organopolysiloxanes Process for preparing highly viscous organopolysiloxanes

2006-10-24

2006-10-24

Barts, Samuel (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C556S450000

Reexamination Certificate

active

07126020

ABSTRACT:
Process for preparing highly viscous organopolysiloxanes by reacting siloxanes (1) composed of units of the general formulaAa⁢Rc⁡(OR1)d⁢SiO4-(a+c+d)2(I)whereA is a nitrogen-containing Si—C-bonded radical,R is a C1-18hydrocarbon radicalR1is hydrogen or a C1-8alkyl radical,a and d are 0 or 1, c is 0, 1, 2 or 3,a+c+d is <3 and one A and one R1where of R1is hydrogen atom are present,optionally siloxanes (2)Rc⁡(OR1)d⁢SiO4-(c+d)2(II)wherec+d is ≦3 and one R1radical is hydrogen is present,with silanes (3)in-line-formulae description="In-line Formulae" end="lead"?BReSi(OR3)3−e  (III)in-line-formulae description="In-line Formulae" end="tail"?whereB is a radical —CR22—Y,R2is hydrogen or C1-4alkyl,Y is halogen, a monosubstituted O and S atom, or a substituted N or P atom,R3is C1-8alkyl, ande is 0, 1 or 2.

REFERENCES:
patent: 3658864 (1972-04-01), Golitz et al.
patent: 5241034 (1993-08-01), Herzig et al.
patent: 6252100 (2001-06-01), Herzig
patent: 6451909 (2002-09-01), Herzig et al.
patent: 1 905 101 (1970-08-01), None
patent: 25 00 020 (1976-07-01), None
patent: 0 874 017 (1998-10-01), None
English Derwent Abstract AN 1976-56153X[30] corresponding to DE 25 000 20 A1.

Affiliated with

Also associated with

Rating

Process for preparing highly viscous organopolysiloxanes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing highly viscous organopolysiloxanes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing highly viscous organopolysiloxanes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3689286