TAPES AND METHODS OF USE FOR MASKING ALUMINUM SURFACES IN CHROMIC ACID ANODIZATION

    公开(公告)号:US20190352790A1

    公开(公告)日:2019-11-21

    申请号:US16474208

    申请日:2017-12-20

    Abstract: A tape includes: a flexible backing layer having two major surfaces, wherein the backing layer has a thickness of greater than 64 micrometers and up to 200 micrometers, and one major surface of the backing layer includes a primed surface; and a rubber-based pressure sensitive adhesive layer disposed on the primed surface of the backing layer, wherein the pressure sensitive adhesive layer has a thickness of at least 7.6 micrometers (and preferably up to 25 micrometers); wherein, when disposed on an aluminum substrate, the tape displays a peel adhesion of less than 20 oz/in (219 N/m) according to a Peel Adhesion Strength Test described in the Examples Section, and a leakage distance of less than 762 micrometers according to a Chromic Acid Anodization—Leakage Distance Test described in the Examples Section. A method of anodizing an aluminum surface includes: providing a substrate having an aluminum surface; applying a tape as described herein to mask the aluminum surface and form a masked substrate; and exposing the masked substrate to an electrolyte solution including chromic acid under conditions effective to form aluminum oxide.

    Coextruded Polymeric Article and Method of Making the Same

    公开(公告)号:US20220411135A1

    公开(公告)日:2022-12-29

    申请号:US17781144

    申请日:2020-12-04

    Abstract: A system including a polymeric sheet. The polymeric sheet comprises a base sheet having a first surface and a second surface opposite the first surface and a multiplicity of spaced rails projecting from the first surface of the base sheet. The rails comprise a stem portion attached to and substantially upright from the first surface of the base sheet and a top portion on the distal end of the stem opposite the base sheet. The top portion comprises a first surface opposite the base sheet and a second surface facing the first surface of the base sheet. Additionally, the rails have a length greater than the width of the stems. The first surface of the base sheet, the second surface of the top portion and the surface of the stem defines a cavity with walls, and an adhesive coated on at least a portion of the cavity wall.

    COEXTRUDED POLYMERIC NETTING AND METHOD OF MAKING THE SAME

    公开(公告)号:US20220118669A1

    公开(公告)日:2022-04-21

    申请号:US17310665

    申请日:2020-03-03

    Abstract: Coextruded polymeric netting having a machine direction comprising: a plurality of pairs of: first segments each having first and second opposed major surfaces and a thickness, the first segments comprising first material; second segments comprising second material, wherein adjacent first segments are joined together via a second segment, wherein the second segments extend from the second major surface past the first major surface of each first adjacent segment and has a distal end, the second segments having first and second opposed major surfaces, wherein there is a gap between adjacent second segments; and a third material, different from the first and second materials on at least one of the first or second major surfaces of at least every other second segment, wherein the first segments, second segments, and third material each extend continuously for at least 5 mm in the machine direction, and wherein first and second materials of adjacent pairs are periodically bonded together in the machine direction. Uses for coextended polymeric articles described herein include fasteners.

    COEXTRUDED POLYMERIC ARTICLE AND METHOD OF MAKING THE SAME

    公开(公告)号:US20210268710A1

    公开(公告)日:2021-09-02

    申请号:US17250234

    申请日:2019-06-21

    Abstract: Coextruded polymeric article comprising first segments each having first and second opposed major surfaces and a thickness, the first segments comprising first material; second segments comprising second material, wherein adjacent first segments are joined together via a second segment, wherein at least 10 percent by number of the second segments extend from the second major surface past the first major surface of each first adjacent segment and has a distal end, the second segments having first and second opposed major surfaces, wherein there is a gap between adjacent second segments; and adhesive on the first and second major surfaces of at least every other second segment except a portion of the major surface adjacent to the respective distal end is free of the adhesive, wherein the first segments, second segments, and adhesive each extend continuously for at least 5 mm. Uses for coextruded polymeric articles described herein include adhesive articles and household cleaning products (e.g., as mops, dusters, brushes, cleaning cloths, and lint rollers).

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