Patent JPS63792A successfully refreshed from Google Patents.
Patent US6255407B1 successfully refreshed from Google Patents.
US6255407B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-component adhesive
Assignee: Ernst Muehlbauer KG
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Filing: 1999-10-13
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Granted: 2001-07-03
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Expires: 2019-10-13
Abstract
Abstract The invention relates to an adhesive comprising a polymer having the following features:a polymeric backbone,alkyl, aryl and/or alkenyl groups attached to the backbone by way of ester linkages,alkyl and/or aryl spacer groups attached to the backbone by way of ester linkages,an open-chain and/or cyclic silicone group and/or silane group is attached to the spacer by means of an Si-C bond,an ethylene group is attached to the silicone and/or silane group by means of an Si-C bond,the ethylene group in turn is connected to a second silicone group which comprises M, D, T and/or Q silicone units and comprises at least one vinyl group attached to Si.The adhesive of the invention is stable even under moist conditions and ensures good promotion of adhesion between a polymer and an organosilicon elastomer.
Inventors
- 👤 Stephan Neffgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:23
CPC Classifications
C; C09; C09J; C09J183/00; C09J183/10; A; A61; A61K; A61K6/00; A61K6/30
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
110 words
A medical adhesive composition comprising a polymer, wherein the polymer has: a polymeric backbone, alkyl, aryl and/or alkenyl groups attached to the backbone by way of ester linkages, alkyl and/or aryl spacer groups attached to the backbone by way of ester linkages, an open-chain and/or cyclic silicone group and/or silane group attached to the spacer by means of an Si—C bond, an ethylene group is attached to the silicone and/or silane group by means of an Si—C bond, wherein the ethylene group in turn is connected to a second silicone group which comprises M, D, T and/or Q silicone units and comprises at least one vinyl group attached to Si.
Claim 2
Dependent Claim
110 words
A medical adhesive composition comprising a polymer, wherein the polymer has: a polymeric backbone, alkyl, aryl and/or alkenyl groups attached to the backbone by way of ester linkages, alkyl and/or aryl spacer groups attached to the backbone by way of ester linkages, an open-chain and/or cyclic silicone group and/or silane group attached to the spacer by means of an Si—C bond, an ethylene group is attached to the silicone and/or silane group by means of an Si—C bond, wherein the ethylene group in turn is connected to a second silicone group which comprises M, D, T and/or Q silicone units and comprises at least one vinyl group attached to Si.
Claim 3
Dependent Claim
113 words
A medical adhesive composition according to claim 1 , wherein the polymer has the following structural elements: in which r is an integer from 1 to 3, R 1 is identical or different and is H, methyl, ethyl, propyl or butyl, R 2 is a straight-chain or branched alkyl, aryl, aralkyl and/or alkenyl group, Z is a straight-chain or branched alkyl or aryl or aralkyl group, W is an open-chain and/or cyclic silicone group or silane group which is attached by way of Si—C bonds, X is a second silicone group containing M, D, T and/or Q units, at least one silicone group X containing at least one vinyl group attached to Si.
Claim 4
Dependent Claim
57 words
A medical adhesive composition according to claim 2 , wherein structural element a) has the following composition: in which R 1 , R 2 , Z and X are as defined in claim 2 , R 3 is a straight-chain or branched alkyl or aryl or aralkyl group and m is an integer from 0 to 2.
Claim 5
Dependent Claim
15 words
A medical adhesive composition according to claim 1 , wherein the backbone comprises a poly(meth)acrylate.
Claim 6
Dependent Claim
19 words
A medical adhesive composition according to claim 4 , wherein the poly(meth)acrylate component has a molecular weight of 800-1,000,000.
Claim 7
Dependent Claim
20 words
A medical adhesive composition according to claim 2 , wherein the silicone group X has a molecular weight of 80-200,000.
Claim 8
Dependent Claim
20 words
A medical adhesive composition according to claim 2 , wherein each silicone group X contains at least one vinyl group.
Claim 9
Dependent Claim
19 words
A medical adhesive composition according to claim 2 , wherein the spacer Z is a straight-chain (unbranched) alkyl group.
Claim 10
Dependent Claim
14 words
A medical adhesive composition according to claim 1 , further comprising a nonreactive solvent.
Claim 11
Dependent Claim
17 words
A medical adhesive composition according to claim 1 , further comprising one or more reactive (meth)acrylate resins.
Claim 12
Dependent Claim
17 words
A medical adhesive composition according to claim 1 , further comprising amorphous silica and/or finely divided glasses.
Claim 13
Dependent Claim
12 words
A medical adhesive composition according to claim 1 , further comprising pigments.
Claim 14
Dependent Claim
68 words
Process for preparing an adhesive according to claim 1 , comprising the steps of: transesterifying a poly(alk)acrylate with ethylenically unsaturated alcohols, reacting this compound with volatile silanes and/or siloxanes containing at least one and, at least in part, at least two Si—H bonds, reacting the reaction product with silicones which contain at least one Si-bonded vinyl group and, at least in part, two or more Si-bonded vinyl groups.
Claim 15
Dependent Claim
68 words
Process for preparing an adhesive according to claim 1 , comprising the steps of: reacting a copolymer of alkyl (meth)acrylates and alkenyl (meth)acrylates with volatile silanes and/or siloxanes which contain at least one and, at least in part, at least two Si—H bonds, reacting the reaction product with silicones which contain at least one Si-bonded vinyl group and, at least in part, two or more Si-bonded vinyl groups.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-07-02 | 2005-01-01 | 2005-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-07-02 | 2009-01-01 | 2009-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-07-02 | 2013-01-01 | 2013-07-03 | $7700.00 | Window Closed / Lapsed |