EP0175562A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Vinyl caprolactam containing hot melt adhesives
Assignee: Ethicon Inc
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Filing: 1985-09-16
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Granted: —
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Expires: 2005-09-16
Abstract
Abstract 57 Novel acrylate, hot melt, pressure-sensitive adhesive are disclosed which are polymerized compositions of: useful for medical products such as ostomy seals, adhesive tapes and bandages, wound drainage adhesive seals, wound dressings and the like that adhere well to human skin even under moist conditions.
Inventors
- 👤 Robert L. Sun
- 👤 James F. Kenney
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 07:10
CPC Classifications
C; C09; C09J; C09J139/00; C09J139/04; A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61L26/00; A61L26/0009; A61L26/0014; C09J133/00; C09J133/04; C09J133/06; C09J133/062
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
15 words
A hot melt pressure-sensitive adhesive suitable for medical use, consisting of the following polymerized composition:
Claim 2
Dependent Claim
15 words
A hot melt pressure-sensitive adhesive suitable for medical use, consisting of the following polymerized composition:
Claim 3
Dependent Claim
13 words
A hot melt adhesive according to claim 1 wherein the polymerized composition is:
Claim 4
Dependent Claim
18 words
A hot melt adhesive according to claim 2, which adheres well to human skin even under moist conditions.
Claim 5
Dependent Claim
19 words
A hot melt adhesive according to claim 2 or claim 3, having a Williams Plasticity Number above 1.5 mm.
Claim 6
Dependent Claim
24 words
A hot melt adhesive according to any one of claims 2 to 4, having a melt viscosity at 350°F. from 40,000 to 350,000 cps.
Claim 7
Dependent Claim
17 words
A hot melt adhesive according to any one of claims 2 to 5, which has been sterilized.
Claim 8
Dependent Claim
44 words
A hot melt adhesive according to any one of claims 2 to 6, wherein the polymerized composition consists of 35 to 50 percent 2-ethylhexyl acrylate, 15 to 35 percent n-butyl acrylate, 15 to 25 percent isobutyl methacrylate, and 15 to 20 percent N-vinyl caprolactam.
Claim 9
Dependent Claim
31 words
A hot melt adhesive according to claim 7 wherein the polymerized composition consists of 45 percent 2-ethylhexyl acrylate, 20 percent n-butyl acrylate, 20 percent isobutyl methacrylate, and 15 percent N-vinyl caprolactam.
Claim 10
Dependent Claim
18 words
A hot melt adhesive according to claim 8, having a Williams Plasticity Number of 1.5 to 2.5 mm.
Claim 11
Dependent Claim
49 words
A medical pressure-sensitive adhesive sheet product of the type formed from a hot melt adhesive coated onto a backing substrate, for use on human skin even in a moist environment, characterised in that the product uses a hot melt adhesive according to any one of claims 2 to 9.
References Cited (Backward Citations)
No citation records indexed.
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