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US4625010A Expired / Lapsed US ⏱️ 0.0 years remaining

Organopolysiloxanes having Si-bonded hydrogen and SiC-bonded epoxy groups and a process for preparing the same

Assignee: Wacker Chemie AG
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Filing: 1985-08-09
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Granted: 1986-11-25
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Expires: 2005-08-09
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Abstract

Abstract Novel organopolysiloxanes are described in which the organopolysiloxanes are terminated by units of the formula R 3 SiO 1/2 and comprise units of the formulas RR 1 SiO, RR 2 SiO, RR 3 SiO, RHSiO and R 2 SiO, where R represents the same or different alkyl radicals having from 1 to 4 carbon atoms per radical, or phenyl radicals, R 1 represents the same or different alkyl radicals having at least 6 carbon atoms per radical, R 2 represents the same or different aralkyl radicals and R 3 represents the same or different, SiC-bonded, monovalent organic radicals having at least one vicinal epoxy group per radical. These organopolysiloxanes are preferably prepared by reacting organopolysiloxanes which contain units of the formulas R 3 SiO 1/2 and RHSiO and optionally units of the formula R 2 SiO, wherein R is the same as above, with an organic compound that has a terminal C═C-bond and at least one vicinal epoxy group per molecule, at least one alkene having at least 6 carbon atoms per molecule, and at least one aralkene in the presence of a catalyst which promotes the addition of Si-bonded hydrogen to the aliphatic C═C bond. These organopolysiloxanes may be applied simultaneously with a polymer having perfluoroalkyl groups with at least 3 carbon atoms per alkyl group to fibers to render them oil and water repellent.

Inventors

  • 👤 Karl Huhn
  • 👤 Rudolf Kaufmann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 19:42
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/14; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/65; C08G77/06; C08G77/38

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 164 words
Organopolysiloxanes terminated by units of the formula R 3 SiO 1/2 and comprising 20 to 90 mole percent of units of the formula RR 1 SiO, 3 to 30 mole percent of units of the formula RR 2 SiO, 3 to 30 mole percent of units of the formula RR 3 SiO, 3 to 60 mole percent of units of the formula RHSiO, and 0 to 60 mole percent of units of the formula R 2 SiO, where R is selected from the group consisting of alkyl radicals having from 1 to 4 carbon atoms per radical and a phenyl radical, R 1 is an alkyl radical having at least 6 carbon atoms per radical, R 2 is selected from the group consisting of aralkyl radicals and alkylated aralkyl radicals and R 3 is an SiC-bonded monovalent organic radical having in each case at least one vicinal epoxy group per radical, in which the sum of the percentages adds up to 100 mole percent.
Claim 2
Dependent Claim 164 words
Organopolysiloxanes terminated by units of the formula R 3 SiO 1/2 and comprising 20 to 90 mole percent of units of the formula RR 1 SiO, 3 to 30 mole percent of units of the formula RR 2 SiO, 3 to 30 mole percent of units of the formula RR 3 SiO, 3 to 60 mole percent of units of the formula RHSiO, and 0 to 60 mole percent of units of the formula R 2 SiO, where R is selected from the group consisting of alkyl radicals having from 1 to 4 carbon atoms per radical and a phenyl radical, R 1 is an alkyl radical having at least 6 carbon atoms per radical, R 2 is selected from the group consisting of aralkyl radicals and alkylated aralkyl radicals and R 3 is an SiC-bonded monovalent organic radical having in each case at least one vicinal epoxy group per radical, in which the sum of the percentages adds up to 100 mole percent.
Claim 3
Dependent Claim 19 words
The organopolysiloxanes of claim 1, wherein they have an average of from 10 to 1000 silicon atoms per molecule.
Claim 4
Dependent Claim 192 words
A process for preparing the organopolysiloxanes of claim 1, which comprises reacting an organopolysiloxane having the formula R.sub.3 Si(OSiRH).sub.m-f (OSiR.sub.2).sub.f OSiR.sub.3, wherein R is selected from the group consisting of alkyl radicals having from 1 to 4 carbon atoms per radical and a phenyl radical, m is a number of from 8 to 1000 and f is 0 or is from 1 to 0.6 m, with an organic compound having a terminal aliphatic carbon-carbon double bond and at least one epoxy group per molecule in an amount of from 0.035 to 0.54 mole per gram-equivalent of Si-bonded hydrogen, at least one alkene having at least 6 carbon atoms per molecule in an amount of from 0.23 to 0.91 mole per gram-equivalent of Si-bonded hydrogen, and at least one aralkene in an amount of from 0.035 to 0.54 mole per gram-atom of Si-bonded hydrogen, in which the organic compound containing at least one epoxy group per molecule, the alkene and the aralkene, is present in a total amount up to 0.97 mole per gram-atom of Si-bonded hydrogen and a catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic carbon-carbon double bond.
Claim 5
Dependent Claim 12 words
The process of claim 3, wherein the alkene is an alkylated alkene.
Claim 6
Dependent Claim 12 words
The process of claim 3, wherein the aralkene is an alkylated aralkene.
Claim 7
Dependent Claim 25 words
The process of claim 3, wherein the organic compound also contains atoms selected from the group consisting of ether-oxygen atoms, carbonyl-oxygen atoms and mixtures thereof.
Claim 8
Dependent Claim 36 words
The process of claim 3, wherein the organopolysiloxane contains units of the formula R.sub.2 SiO, where R is selected from the group consisting of alkyl radicals having from 1 to 4 carbon atoms and phenyl radicals.

References Cited (Backward Citations)

US4083856A Cited
US4004059A Cited
US4046930A Cited
US4546164A Cited
US4533477A Cited
US4537944A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-11-24 1990-05-26 1990-11-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-11-24 1994-05-26 1994-11-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-11-24 1998-05-26 1998-11-25 $7700.00 Window Closed / Lapsed

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