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US4650835A
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Silicon compounds containing SiC-bonded biuret groups and a method for preparing the same
Assignee: Wacker Chemie AG
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Filing: 1986-02-18
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Granted: 1987-03-17
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Expires: 2006-02-18
Abstract
Abstract Organosilicon compounds containing SiC-bonded biuret groups are prepared by (I) adding a silane containing 1 or 2 silicon atoms per molecule and an SiC-bonded organic radical having at least one basic ##STR1## group and at least one SiOC-bonded aliphatic radical per molecule to a monoisocyanate or a diisocycanate at a temperature up to 125° C. and (II) maintaining the temperature at 110° C. to 125° C. for at least two minutes. In an alternate procedure the silane and mono- or diisocyanate may be heated to a temperature in the range of from 110° C. up to 200° C. for at least two minutes, after or while adding additional monoisocyanate or diisocyanate. The resultant silicon compounds are used in the preparation of polyurethanes and as additives to lacquers.
Inventors
- 👤 Herbert Eck
- 👤 Hartmut Menzel
- 👤 Reinhard Jira
- 👤 Alfred Prasse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:47
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/778; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C09; C09D; C09D7/00; C09D7/40; C09D7/60; C09D7/63; C08K; C08K5/00; C08K5/54; C08K5/544; C08K5/5455
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
A polyurethane composition which is obtained from the reaction of an organic compound having active hydrogen atoms as determined by the Zerewitinoff method and a compound containing at least two --NCO groups in which at least a part of the compound having the --NCO groups is a silicon compound which is obtained by (I) reacting a silane containing up to 2 silicon atoms per molecule and an SiC-bonded organic radical which has at least one basic HN-- group and at least one SiOC-bonded aliphatic radical per molecule with an isocyanate selected from the group consisting of a monoisocyanate, a diisocyanate and mixtures thereof in an amount of at least 1 gram-equivalent of --NCO group per gram equivalent of HN-- group present in the silane at a temperature up to 125° C.; and thereafter (II) maintaining the product obtained in Stage (I) at a temperature of from 110° C. to 125° C. for at least 2 minutes.
Claim 2
Dependent Claim
156 words
A polyurethane composition which is obtained from the reaction of an organic compound having active hydrogen atoms as determined by the Zerewitinoff method and a compound containing at least two --NCO groups in which at least a part of the compound having the --NCO groups is a silicon compound which is obtained by (I) reacting a silane containing up to 2 silicon atoms per molecule and an SiC-bonded organic radical which has at least one basic HN-- group and at least one SiOC-bonded aliphatic radical per molecule with an isocyanate selected from the group consisting of a monoisocyanate, a diisocyanate and mixtures thereof in an amount of at least 1 gram-equivalent of --NCO group per gram equivalent of HN-- group present in the silane at a temperature up to 125° C.; and thereafter (II) maintaining the product obtained in Stage (I) at a temperature of from 110° C. to 125° C. for at least 2 minutes.
Claim 3
Dependent Claim
125 words
The polyurethane composition of claim 1, wherein at least a part of the compound having the --NCO groups is a silicon compound which is obtained by (I) reacting a silane containing up to 2 silicon atoms per molecule and an SiC-bonded organic radical which has at least one basic HN-- group and at least one SiOC-bonded aliphatic radical per molecule with a monoisocyanate in an amount up to 2 gram-equivalents of --NCO groups per gram-equivalent of HN-- group present in the silane at a temperature up to 125° C.; and thereafter (II) heating the product obtained in Stage (I) to a temperature of from 110° C. to 200° C. for at least 2 minutes in Stage (II) after or during the addition of additional isocyanate.
Claim 4
Dependent Claim
125 words
The polyurethane composition of claim 1, wherein at least a part of the compound having the --NCO groups is a silicon compound which is obtained by (I) reacting a silane containing up to 2 silicon atoms per molecule and an SiC-bonded organic radical which has at least one basic HN-- group and at least one SiOC-bonded aliphatic radical per molecule with a diisocyanate in an amount up to 3 gram-equivalents of --NCO groups per gram-equivalent of HN-- group present in the silane at a temperature up to 125° C.; and thereafter (II) heating the product obtained in Stage (I) at a temperature of from 110° C. to 200° C. for at least 2 minutes in Stage (II) after or during the addition of additional isocyanate.
Claim 5
Dependent Claim
114 words
A lacquer composition containing a silicon compound which is obtained by (I) reacting a silane containing up to 2 silicon atoms per molecule and an SiC-bonded organic radical which has at least one basic HN-- group and at leat one SiOC-bonded aliphatic radical per molecule with an isocyanate selected from the group consisting of a monoisocyanate, a diisocyanate and mixtures thereof in an amount of at least 1 gram-equivalent of --NCO group per gram equivalent of HN-- group present in the silane at a temperature up to 125° C.; and thereafter (II) maintaining the product obtained in Stage (I) at a temperature of from 110° C. to 125° C. for at least 2 minutes.
Claim 6
Dependent Claim
114 words
A lacquer composition containing a silicon compound which is obtained by (I) reacting a silane containing up to 2 silicon atoms per molecule and an SiC-bonded organic radical which has at least one basic HN-- group and at leat one SiOC-bonded aliphatic radical per molecule with an isocyanate selected from the group consisting of a monoisocyanate, a diisocyanate and mixtures thereof in an amount of at least 1 gram-equivalent of --NCO group per gram equivalent of HN-- group present in the silane at a temperature up to 125° C.; and thereafter (II) maintaining the product obtained in Stage (I) at a temperature of from 110° C. to 125° C. for at least 2 minutes.
Claim 7
Dependent Claim
110 words
A lacquer composition containing a silicon compound which is obtained by (I) reacting a silane containing up to 2 silicon atoms per molecule and an SiC-bonded organic radical which has at least one basic HN-- group and at least one SiOC-bonded aliphatic radical per molecule with a monoisocyanate in an amount up to 2 gram-equivalents of --NCO groups per gram-equivalent of HN-- group present in the silane at a temperature up to 125° C.; and thereafter (II) heating the product obtained in Stage (I) to a temperature of from 110° C. to 200° C. for at least 2 minutes in Stage (II) after or during the addition of additional isocyanate.
Claim 8
Dependent Claim
110 words
A lacquer composition containing a silicon compound which is obtained by (I) reacting a silane containing up to 2 silicon atoms per molecule and an SiC-bonded organic radical which has at least one basic HN-- group and at least one SiOC-bonded aliphatic radical per molecule with a monoisocyanate in an amount up to 2 gram-equivalents of --NCO groups per gram-equivalent of HN-- group present in the silane at a temperature up to 125° C.; and thereafter (II) heating the product obtained in Stage (I) to a temperature of from 110° C. to 200° C. for at least 2 minutes in Stage (II) after or during the addition of additional isocyanate.
Claim 9
Dependent Claim
110 words
A lacquer composition containing a silicon compound which is obtained by (I) reacting a silane containing up to 2 silicon atoms per molecule and an SiC-bonded organic radical which has at least one basic HN-- group and at least one SiOC-bonded aliphatic radical per molecule with a diisocyanate in an amount up to 3 gram-equivalents of --NCO groups per gram-equivalent of HN-- group present in the silane at a temperature up to 125° C.; and thereafter (II) heating the product obtained in Stage (I) at a temperature of from 110° C. to 200° C. for at least 2 minutes in Stage (II) after or during the addition of additional isocyanate.
Claim 10
Dependent Claim
110 words
A lacquer composition containing a silicon compound which is obtained by (I) reacting a silane containing up to 2 silicon atoms per molecule and an SiC-bonded organic radical which has at least one basic HN-- group and at least one SiOC-bonded aliphatic radical per molecule with a diisocyanate in an amount up to 3 gram-equivalents of --NCO groups per gram-equivalent of HN-- group present in the silane at a temperature up to 125° C.; and thereafter (II) heating the product obtained in Stage (I) at a temperature of from 110° C. to 200° C. for at least 2 minutes in Stage (II) after or during the addition of additional isocyanate.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-16 | 1990-09-15 | 1991-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-16 | 1994-09-15 | 1995-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-16 | 1998-09-15 | 1999-03-17 | $7700.00 | Window Closed / Lapsed |