公开(公告)号：US20190352790A1

公开(公告)日：2019-11-21

申请号：US16474208

申请日：2017-12-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Sarang V. Deodhar ,  James J. Kobe ,  Meredith A. Opatz ,  Vasav Sahni ,  Daniel C. Munson

IPC: C25D11/02 ,  C25D11/16 ,  C25D11/08 ,  C09J7/38 ,  C09J7/25

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.

公开(公告)号：US20220105605A1

公开(公告)日：2022-04-07

申请号：US17555242

申请日：2021-12-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Paul D. Graham ,  Douglas A. Davis ,  Thomas E. Pahl ,  John G. Petersen ,  Graham M. Clarke ,  James J. Kobe ,  Thomas B. Galush ,  Charles R. Wald ,  Brian W. Lueck

IPC: B24D11/00 ,  B24D11/02 ,  B29C59/04 ,  B32B3/18 ,  B32B27/08

Abstract: Various embodiments disclosed relate to an abrasive sheet. The abrasive sheet includes a first layer including an abrasive major surface and an opposite second layer defining a second major surface. The second major surface includes a plurality of protrusions extending outwardly from the second major surface. The protrusions include a first polymer component having at least one of a Shore A hardness ranging from about 5 to about 100 and a Shore D hardness ranging from about 1 to about 70. The first layer and the second layer are directly joined to each other.

公开(公告)号：US20210260806A1

公开(公告)日：2021-08-26

申请号：US17253858

申请日：2019-06-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ramasubramani Kuduva Raman Thanumoorthy ,  Becky A. Jetto ,  Dedra V. Dunevant ,  Ronald W. Ausen ,  William J. Kopecky ,  James J. Kobe ,  Robert T. Krasa

IPC: B29C48/11 ,  B32B3/26 ,  B32B5/20 ,  B32B5/32 ,  B29C48/21 ,  B29C48/30

Abstract: Coextruded articles comprising first and second layers each having first and second opposed major surfaces and between the first and second layers a series of first walls providing a series of microchannels, and methods for making the same. Embodiment of coextruded articles described herein are useful, for example, in cushioning applications where high levels of compression are desired.

公开(公告)号：US20200164610A1

公开(公告)日：2020-05-28

申请号：US16611349

申请日：2018-05-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Douglas A. Davis ,  Paul D. Graham ,  James J. Kobe ,  Thomas B. Galush ,  Graham M. Clarke ,  Thomas E. Pahl ,  Charles R. Wald ,  Brian W. Lueck ,  John G. Petersen

IPC: B32B3/30 ,  B32B5/06 ,  B32B27/40 ,  B32B27/12 ,  B32B37/24 ,  A41D19/015

Abstract: Various embodiments disclosed relate to an article. The article includes a first layer defining a first major surface of the article. The first layer includes a plurality of protrusions extending outwardly from the first major surface. The protrusions comprise an elastic polymer component. The article further includes a second layer opposite the first layer, which at least partially defines a second major surface of the article. The first layer is disposed over a range of about 5% surface area of the second layer to about 99% surface area of the second layer. The first layer and the second layer are in direct contact.

公开(公告)号：US20230037449A1

公开(公告)日：2023-02-09

申请号：US17787463

申请日：2020-12-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Robert T. Krasa ,  James J. Kobe ,  Becky A. Jetto ,  Dedra V. Dunevant ,  Ronald W. Ausen ,  William J. Kopecky ,  Ramasubramani Kuduva Raman Thanumoorthy

IPC: B32B3/26 ,  B32B5/18 ,  B29C44/50 ,  B29C44/34 ,  B29C44/56 ,  B29C44/24 ,  B29C48/305 ,  C09J7/38 ,  C09J7/29

Abstract: Pressure sensitive adhesive-coated articles comprising first and second layers each having first and second opposed major surfaces and between the first and second layers a series of first walls providing a series of microchannels, and methods for making the same. Embodiment of articles described herein are useful, for example, in cushioning applications where high levels of compression are desired.

公开(公告)号：US20210324243A1

公开(公告)日：2021-10-21

申请号：US17252599

申请日：2019-06-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Christopher W. Cox ,  Sarang V. Deodhar ,  Albert I. Everaerts ,  Becky A. Jetto ,  James J. Kobe ,  Meredith A. Opatz ,  Carla S. Thomas

IPC: C09J7/38 ,  C09J7/25 ,  C25D11/02 ,  C25D11/04

Abstract: A tape includes: a flexible backing layer having two major surfaces, wherein the backing layer has a thickness of greater than 25 micrometers; and an acrylic-based pressure sensitive adhesive layer disposed on one major surface of the backing layer, wherein the acrylic-based pressure sensitive adhesive comprises the reaction of one or more (C8-C20)alkyl acrylates with one or more reinforcing monomers having a homopolymer Tg of at least 50° C., wherein the acrylic-based pressure sensitive adhesive has a tan δ of at least 0.5 measured at 80° C. and an oscillating frequency of 1 radian/second, and wherein the acrylic-based pressure sensitive adhesive layer has a thickness of at least 5 micrometers; wherein, when disposed on an aluminum substrate, the tape displays clean removal from the aluminum substrate according to the Clean Removal Test described in the Examples Section, and a leakage distance of less than 762 micrometers according to the 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.