中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

4 records (took 0.012 seconds)

    TAPES AND METHODS OF USE FOR MASKING ALUMINUM SURFACES IN CHROMIC ACID ANODIZATION
    1.
    发明申请
    TAPES AND METHODS OF USE FOR MASKING ALUMINUM SURFACES IN CHROMIC ACID ANODIZATION 审中-公开

    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.

    TAPES AND METHODS OF USE FOR MASKING ALUMINUM SURFACES IN ACID ANODIZATION
    2.
    发明申请
    TAPES AND METHODS OF USE FOR MASKING ALUMINUM SURFACES IN ACID ANODIZATION 有权

    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.

Patent Agency Ranking