US4954580A
Expired / Lapsed
US
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Epoxysiloxanes
Assignee: Novartis Corp
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Filing: 1988-11-21
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Granted: 1990-09-04
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Expires: 2008-11-21
Abstract
Abstract Epoxysiloxanes having, per molecule, at least two groupings of the formula ##STR1## in which R 1 and R 2 independently of one another are C 1 -C 10 alkyl, C 1 -C 10 alkyoxy, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, benzyl or a halogen atom and in which each grouping of the formula I in each case is attached directly to a silicon atom of the siloxane radical, are suitable for use as epoxy resins. They can be used together with customary epoxy resin curing agents, for example, for the production of adhesives, sealing materials, lacquers or encapsulating resins, and afford products having excellent properties. The epoxysiloxanes according to the invention are also valuable reactive thinners and flexibilizers for curable epoxy resin mixtures.
Inventors
- 👤 Sheik A. Zahir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:07
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08L83/06; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/30; C08G59/306; C08G59/32; C08G59/3254; C08G77/00; C08G77/04; C08G77/38
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
73 words
An epoxysiloxane having, per molecule, at least two groupings of the formula I ##STR11## in which R 1 and R 2 independently of one another are C 1 -C 10 alkyl, C 1 -C 10 alkoxy, C 3 -C 8 cycloalkyl, Chd 6-C 10 aryl, benzyl or a halogen atom and in which each grouping of the formula I in each case is attached directly to a silicon atom of the siloxane radical.
Claim 2
Dependent Claim
73 words
An epoxysiloxane having, per molecule, at least two groupings of the formula I ##STR11## in which R 1 and R 2 independently of one another are C 1 -C 10 alkyl, C 1 -C 10 alkoxy, C 3 -C 8 cycloalkyl, Chd 6-C 10 aryl, benzyl or a halogen atom and in which each grouping of the formula I in each case is attached directly to a silicon atom of the siloxane radical.
Claim 3
Dependent Claim
15 words
An epoxysiloxane according to claim 1, in which R 1 and R 2 are identical.
Claim 4
Dependent Claim
41 words
An epoxysiloxane according to claim 1, in which R 1 and R 2 independently of one another are C 1 -C 5 alkyl, C 1 -C 5 alkoxy, C 5 -C 6 cycloalkyl, phenyl, benzyl or a chlorine or bromine atom.
Claim 5
Dependent Claim
28 words
An epoxysiloxane according to claim 1, in which R 1 and R 2 independently of one another are methyl, ethyl, isopropyl, tert-butyl, cyclohexyl, phenyl or a bromine atom.
Claim 6
Dependent Claim
146 words
An epoxysiloxane according to claim 1 selected from compounds of the formulae III, IV or V ##STR12## in which R 3 , R 4 and R 5 independently of one another are C 1 -C 5 alkyl, C 1 -C 5 fluoroalkyl or phenyl, X is a grouping of the formula I according to claim 1, Y is one of the radicals R 3 , R 4 and R 5 and or a group --(CH 2 ) 2 --CN or --(CH 2 ) 2 --COOR 6 in which R 6 is C 1 -C 5 alkyl, m is an integer from 1 to 500, n is an integer from 2 to 500, o is zero or an integer from 1 to 500, p is an integer from 2 to 10, r is zero or an integer from 1 to 8 and p+r is at least 3.
Claim 7
Dependent Claim
71 words
An epoxysiloxane according to claim 5, in which R 3 , R 4 R 5 and independently of one another are methyl, ethyl, 3,3,3-trifluoropropyl or phenyl, m is an integer from 1 to 50, n is an integer from 2 to 50, o is zero or an integer from 2 to 50, p is an integer from 2 to 4 and r is zero or an integer from 1 to 4.
Claim 8
Dependent Claim
30 words
An epoxysiloxane according to claim 6, in which R 3 to R 5 are methyl, m is 2, n is 35, p is 4, is zero and r is zero.
Claim 9
Dependent Claim
10 words
An epoxysiloxane according to claim 1 of the formula ##STR13##
Claim 10
Dependent Claim
10 words
An epoxysiloxane according to claim 1 of the formula ##STR14##
Claim 11
Dependent Claim
10 words
An epoxysiloxane according to claim 1 of the formula ##STR15##
Claim 12
Dependent Claim
27 words
A curable epoxy resin composition of matter comprising (a) an epoxysiloxane according to claim 1 and (b) a curing agent and/or a curing catalyst for epoxy resins.
Claim 13
Dependent Claim
19 words
A composition of matter according to claim 11 comprising, in addition, (c) an epoxy resin containing no silicon atoms.
Claim 14
Dependent Claim
15 words
A composition of matter according to claim 11, in which the component (b) is heat-activatable.
Claim 15
Dependent Claim
15 words
A composition of matter according to claim 11, in which the component (b) is radiation-activatable.
Claim 16
Dependent Claim
14 words
A crosslinked product obtained by curing the composition of matter according to claim 11.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |