Back to results
US 2022/0175587 A1Published application
Buffered adhesive compositions for skin-adhering medical products
AssigneeHollister Incorporated
InventorsJAN WOHLGEMUTH, METTE MAACK, CARSTEN RIKHOF, PETER SKOV, KRISTOFFER NIELSEN, PER LADEFOGED, KENNETH NIELSEN, MICHAEL TAYLOR, RICHARD MURAHATA
Life of this patent
Estimating the term…
Abstract
Provided are buffered adhesive compositions comprising a high molecular weight non-neutralized polymeric acid and a high molecular weight partially neutralized polymeric acid and products such as wound dressings and ostomy skin barriers incorporating the compositions.
Claims19
An ostomy skin barrier comprising:
- a first barrier surface containing a water insoluble first adhesive;
- a second barrier surface containing a water insoluble second adhesive that includes a hydrocolloid;
- and
- a buffer composition that includes a non-neutralized cross-linked polyacrylic acid and a partially neutralized cross-linked polyacrylic acid.
1 more element
A wound dressing comprising:
- a flexible outer layer;
- a first adhesive that includes polyisobutylene and polyethylene fibers;
- a second adhesive that includes a hydrocolloid;
- a buffer composition that includes a cross-linked non-neutralized polyacrylic acid and a cross-linked partially neutralized polyacrylic acid;
- and
- wherein the first and second adhesives are applied to a side of the flexible outer layer.
3 more elements
A method of manufacturing an ostomy skin barrier comprising the steps of:
- forming a first adhesive into a first barrier surface;
- forming a second adhesive that includes a hydrocolloid;
- providing the barrier with a buffer composition that includes a cross linked polyacrylic acid, and a cross linked partially neutralized polyacrylic acid;
- and
- wherein the first adhesive includes polyisobutylene, styrene-isoprene-styrene copolymer, liquid PIB, and polyethylene fibers.
2 more elements
A method for securing a medical product to a skin area of a wearer comprising:
- cleaning and drying the skin area to which the medical product is to be secured;
- exposing first and second adhesives of the medical product;
- placing the exposed first and/or second adhesive of the medical product on the skin area;
- pressing the medical product to the skin area to secure the product to the wearer's skin area;
- and
- wherein the medical product includes a buffer composition that includes a polymeric acid present in non-neutralized form and a polymeric acid present in partially neutralized form;
- and
- wherein the polymeric acids are selected from the group consisting of polyacrylic acid, poly(2-alkyl acrylic acid), copolymers of acrylic acid and 2-alkyl acrylic acid monomers, copolymers of acrylic acid and 2-alkyl acrylic acid monomers with maleic acid, and olefinic polymers substituted with side chains containing free carboxylic acid groups;
- wherein alkyl is from one to five carbons in length and may be straight chain or branched chain;
- and
- wherein the first and second adhesives are water insoluble and are selected from the group consisting of natural rubbers, synthetic rubbers, styrene block copolymers, polyvinyl ethers, poly(meth) acrylates (including both acrylates and methacrylates), polyolefins, silicones, and mixtures thereof.
8 more elements
Dependencies are inferred from the claim text.