中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

96 records (took 0.034 seconds)

    Compositions comprising cleavable crosslinker and methods
    83.
    发明授权
    Compositions comprising cleavable crosslinker and methods 有权

    公开(公告)号：US10351649B2

    公开(公告)日：2019-07-16

    申请号：US15638469

    申请日：2017-06-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jason D. Clapper ,  Dennis E. Vogel ,  Ann R. H. Fornof ,  Babu N. Gaddam

    IPC: C08F220/18 ,  C08F220/26 ,  C08F220/28 ,  C09J133/04 ,  C09J4/00 ,  C08J3/28 ,  C09J5/00 ,  C09J5/06 ,  C09J133/08 ,  C09J7/38 ,  C09J133/06 ,  C09J133/10 ,  C08F222/10

    Abstract: A composition is described comprising a polymer. The polymer comprises polymerized units derived from a cleavable crosslinking monomer. The cleavable crosslinking monomer comprises at least two free-radically polymerizable groups and at least one group having the formula —O—C(R2)(R3)—O—, wherein R2 and R3 are independently hydrogen, alkyl, or aryl. The composition has a Tg no greater than 50° C. In some embodiments, the composition has a storage modulus greater than 3×105 Pa at 25° C. and 1 Hz and may be characterized as a non-tacky polymer. In other embodiments, the composition is a pressure sensitive adhesive. Upon cleavage of at least a portion of the polymerized monomeric units derived from the cleavable crosslinking monomer, the composition exhibits a change in at least one physical property. In another embodiment, the composition comprises a polymer and fragments. The fragments comprise the reaction product of a free-radically polymerizable group bonded to a polymer chain and a pendent hydroxyl group. The composition has a Tg no greater than 50° C. Also described are articles, comprising the composition described herein (i.e. before and/or after cleavage); as well as methods of making the composition and methods of making articles.

    THREE-DIMENSIONAL ARTICLE AND METHOD OF MAKING THE SAME
    84.
    发明申请
    THREE-DIMENSIONAL ARTICLE AND METHOD OF MAKING THE SAME 审中-公开

    公开(公告)号：US20180370084A1

    公开(公告)日：2018-12-27

    申请号：US16061828

    申请日：2016-12-20

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Evan Koon Lun Yuuji Hajime ,  Jason D. Clapper ,  Kurt J. Halverson ,  Myungchan Kang

    IPC: B29C35/02 ,  B29C59/16 ,  B29C59/18 ,  B29C61/02 ,  B29C35/08

    CPC classification number: B29C35/0266 ,  B29C35/0805 ,  B29C59/16 ,  B29C59/18 ,  B29C61/02 ,  B29C71/04 ,  B29C2035/0827 ,  B29C2035/0844 ,  B29C2035/085 ,  B29C2035/0877 ,  B81C2201/0154

    Abstract: Three-dimensional polymeric article (100) having first (101) and second (102) opposed major surfaces, a first dimension perpendicular to a second dimension, a thickness orthogonal to the first and second dimensions, and a plurality of alternating first (107) and second (109) polymeric regions along the first or second dimensions, wherein the first (107) and second (108) regions extend at least partially across the second dimension, wherein the first regions (107) are in a common plane (115) and wherein some of the second regions (108) project outwardly from the plane (115) in a first direction (generally perpendicular from the plane), and some of the second regions (108) project outwardly from the plane (115) in a second direction that is generally 180 degrees from the first direction, where the first regions (107) have a first crosslink density, wherein the second regions (108) have a second crosslink density, and wherein the second crosslink density of the second regions (108) are less than the first crosslink density of the first regions (107). Embodiments of the articles are useful for example, for providing a dual-sided, textured wrapping film such that greater grip is realized both on an item wrapped by the film and the wrapped item itself.

Patent Agency Ranking