US5028485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive composition
Assignee: Avery Dennison Corp
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Filing: 1988-09-20
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Granted: 1991-07-02
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Expires: 2008-09-20
Abstract
Abstract The invention provides a pressure sensitive adhesive composition suitable for skin contact and comprising a polymer, copolymer or mixture of polymers and/or copolymers and optionally usual additives, and further comprising 1-20% by weight, based on the total amount of the composition, of at least one silane compound. Preferably the silane compound contains at least one amino functional group. Further the invention relates to a pressure sensitive adhesive tape and medical accessories provided with the above described adhesive composition.
Inventors
- 👤 Adrianus C. P. van Hooijdonk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:37
CPC Classifications
C; C09; C09J; C09J121/00; A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61L15/585; C09J201/00; C09J7/00; C09J7/30; C09J7/38; C09J7/381; C09J7/383; C08; C08K; C08K5/00; C08K5/54; C08K5/544; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/28; C08L57/00; C08L57/02; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2857; Y10T428/2878; Y10T428/2883
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
95 words
In combination a medical accessory or tape provided with pressure sensitive adhesive composition, which pressure sensitive adhesive retains adhesion to hydrophilic surfaces and skin under wet conditions and which pressure sensitive adhesive composition comprises: a) 20-65% by weight of at least one synthetic elastomer or natural rubber, b) 20-80% by weight of at least one liquid or solid tackifier, c) 7.5-30% by weight of at least one liquid plasticizer, d) 1-20% by weight of at least one silane compound containing at least one amino functional group, e) 0-4% by weight of at least one anti-oxidant.
Claim 2
Dependent Claim
95 words
In combination a medical accessory or tape provided with pressure sensitive adhesive composition, which pressure sensitive adhesive retains adhesion to hydrophilic surfaces and skin under wet conditions and which pressure sensitive adhesive composition comprises: a) 20-65% by weight of at least one synthetic elastomer or natural rubber, b) 20-80% by weight of at least one liquid or solid tackifier, c) 7.5-30% by weight of at least one liquid plasticizer, d) 1-20% by weight of at least one silane compound containing at least one amino functional group, e) 0-4% by weight of at least one anti-oxidant.
Claim 3
Dependent Claim
22 words
The combination as claimed in claim 1, in which the silane compound is a silane having at least two amino functional groups.
Claim 4
Dependent Claim
73 words
A combination as claimed in claim 1 in which the adhesive comprises: a) 25-50% by weight of at least one synthetic elastomer or natural rubber, b) 30-65% by weight of at least one liquid or solid tackifier, c) 15-25% by weight of at least one liquid plasticizer, d) 2-10% by weight of at least one silane compound, having at least one amino functional group, e) 0-4% by weight of at least one anti-oxidant.
Claim 5
Dependent Claim
21 words
The combination claimed in claim 3 in which the silane compound is a silane having at least two amino functional groups.
Claim 6
Dependent Claim
18 words
The combination as claimed in claim 3 in which the silane compound is N-(2-aminoethyl)-N-(3-trimethoxy silyl propyl)-1, 2-ethane diamine.
Claim 7
Dependent Claim
13 words
The combination as claimed in claim 1 in which the combination is sterilized.
Claim 8
Dependent Claim
18 words
The combination as claimed in claim 1 in which the silane compound is N-(2-aminoethyl)-N-(3-trimethoxy silyl propyl)-1, 2-ethane diamine.
Claim 9
Dependent Claim
13 words
The combination as claimed in claim 7 in which the combination is sterilized.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-01 | 1994-12-31 | 1995-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-01 | 1998-12-31 | 1999-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-01 | 2002-12-31 | 2003-07-02 | $7700.00 | Window Closed / Lapsed |