Patent EP0249461A2 successfully refreshed from Google Patents.
EP0249461A2
Expired / Lapsed
EP
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Dispensable tapes
Assignee: 3M Co
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Filing: 1987-06-10
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Granted: —
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Expires: 2007-06-10
Abstract
Abstract Disclosed are tapes for medical use, prepared in a one-pass coating operation in which an extensible tape backing is treated simultaneously with LAB material and elastomer. The resultant tapes exhibit release characteristics and elasticity that enable them to be dispensed in the form of a linerless rolls or in pads without deformation or loss of adhesion.
Inventors
- 👤 John E Minnesota Mining And Riedel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 11:02
CPC Classifications
A; A61; A61L; A61L15/00; A61F; A61F15/00; A61F15/001; A61F15/002; A61F13/00; A61F13/02; A61F13/0203; A61F13/0206; A61F13/0226; A61F13/0259; A61L15/16; A61L15/42; A61L15/58; A61L15/585
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
52 words
A method of making dispensable tape, characterized in that said method comprises the steps of (a) treating an extensible backing simultaneously with a compatible combination comprising (i) at least one low adhesion backsize material, and (ii) at least one elastomer, and (b) drying the resultant treated backing to remove substantially all solvent.
Claim 2
Independent Claim
52 words
A method of making dispensable tape, characterized in that said method comprises the steps of (a) treating an extensible backing simultaneously with a compatible combination comprising (i) at least one low adhesion backsize material, and (ii) at least one elastomer, and (b) drying the resultant treated backing to remove substantially all solvent.
Claim 3
Dependent Claim
77 words
A method according to claim 1 further characterized by the feature that the backing is selected from the group consisting of non-woven, woven and knitted fabrics comprising synthetic or natural fibers or blends thereof, the low adhesion backsize material is selected from the group consisting of polyvinyl carbamate and derivatives thereof, and the elastomer is selected from the group consisting of thermoplastic rubbers, vinyl chloride-vinyl acetate resins, acrylic resins, thermoplastic hydrocarbon resins, and modified aromatic urethane resins.
Claim 4
Dependent Claim
36 words
A method according to claim 1 further characterized by the feature that the backing is a spun-laced polyester non-woven fabric, the low adhesion backsize material is polyvinyl N-octadecyl carbamate, and the elastomer is a thermoplastic rubber.
Claim 5
Dependent Claim
64 words
A dispensable tape, characterized in that said tape comprises an extensible backing, having a faceside and a backside, the faceside having been coated with a pressure-sensitive adhesive and the backside having been treated with at least one low adhesion backsize material and at least one elastomer, such that said low adhesion backsize material is present in a homogeneous and continuous form throughout said backing.
Claim 6
Dependent Claim
64 words
A dispensable tape, characterized in that said tape comprises an extensible backing, having a faceside and a backside, the faceside having been coated with a pressure-sensitive adhesive and the backside having been treated with at least one low adhesion backsize material and at least one elastomer, such that said low adhesion backsize material is present in a homogeneous and continuous form throughout said backing.
Claim 7
Dependent Claim
53 words
A dispensable tape, characterized in that said tape comprises an extensible backing having a faceside and a backside, the faceside having been coated with a pressure-sensitive adhesive and the backside having been treated simultaneously with a compatible combination comprising (a) at least one low adhesion backsize material, and (b) at least one elastomer.
Claim 8
Dependent Claim
53 words
A dispensable tape, characterized in that said tape comprises an extensible backing having a faceside and a backside, the faceside having been coated with a pressure-sensitive adhesive and the backside having been treated simultaneously with a compatible combination comprising (a) at least one low adhesion backsize material, and (b) at least one elastomer.
Claim 9
Dependent Claim
78 words
A dispensable tape according to claim 5 further characterized by the feature that the backing is selected from the group consisting of non-woven, woven and knitted fabrics comprising synthetic or natural fibers or blends thereof, the low adhesion backsize material is selected from the group consisting of polyvinyl carbamate and derivatives thereof, and the elastomer is selected from the group consisting of thermoplastic rubbers, vinyl chloride-vinyl acetate resins, acrylic resins, thermoplastic hydrocarbon resins, and modified aromatic urethane resins.
Claim 10
Dependent Claim
37 words
A dispensable tape according to claim 5 further characterized by the feature that the backing is a spun-laced polyester non-woven fabric, the low adhesion backsize material is polyvinyl N-octadecyl carbamate, and the elastomer is a thermoplastic rubber.
Claim 11
Dependent Claim
61 words
A tape roll, characterized in that said tape roll comprises concentric overlying turns of a tape comprising an extensible backing having a faceside and a backside, the faceside having been coated with a pressure-sensitive adhesive and the backside having been treated simultaneously with a compatible combination comprising (a) at least one low adhesion backsize material, and (b) at least one elastomer.
Claim 12
Dependent Claim
61 words
A tape roll, characterized in that said tape roll comprises concentric overlying turns of a tape comprising an extensible backing having a faceside and a backside, the faceside having been coated with a pressure-sensitive adhesive and the backside having been treated simultaneously with a compatible combination comprising (a) at least one low adhesion backsize material, and (b) at least one elastomer.
Claim 13
Dependent Claim
61 words
A tape pad, characterized in that said tape pad comprises a plurality of sheets, each sheet comprising an extensible backing having a faceside and a backside, the faceside having been treated with a pressure-sensitive adhesive and the backside having been treated simultaneously with a compatible combination comprising (a) at least one low adhesion backsize compound, and (b) at least one elastomer.
Claim 14
Dependent Claim
61 words
A tape pad, characterized in that said tape pad comprises a plurality of sheets, each sheet comprising an extensible backing having a faceside and a backside, the faceside having been treated with a pressure-sensitive adhesive and the backside having been treated simultaneously with a compatible combination comprising (a) at least one low adhesion backsize compound, and (b) at least one elastomer.
References Cited (Backward Citations)
No citation records indexed.
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