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    THREE-DIMENSIONAL ARTICLE AND METHOD OF MAKING THE SAME
    12.
    发明申请
    THREE-DIMENSIONAL ARTICLE AND METHOD OF MAKING THE SAME 审中-公开

    公开(公告)号：US20180354162A1

    公开(公告)日：2018-12-13

    申请号：US16060823

    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 ,  B29C61/02 ,  B29C35/08

    CPC classification number: B29C35/0266 ,  B29C35/0805 ,  B29C35/0866 ,  B29C59/16 ,  B29C59/18 ,  B29C61/02 ,  B29C2035/0827 ,  B29C2035/0844 ,  B29C2035/085 ,  B29C2035/0877

    Abstract: Three-dimensional polymeric article (100) having first (101) and second (102) opposed major surfaces, a base body (103) having a first dimension, a second dimension perpendicular to the first dimension, and a thickness, wherein the thickness is orthogonal to the first and second dimensions, wherein the base body (103) comprises a plurality of alternating, adjacent first (107) and second (108) polymeric regions along the first dimension, wherein the second dimensions of the first (107) and second (108) regions extend at least partially across the second dimensions, wherein the first regions (107) have a first crosslink density, wherein the second regions (108) have a second crosslink density, wherein the second crosslink density of the second regions (108) are less than the first crosslink density of the first regions (107), wherein the first and second regions extend perpendicularly in two directions from a central plane (115) in the base body (103) parallel to the first and second dimensions of the polymeric article (100), and wherein the second regions (108) extend in each of said two directions further than does the first regions (107). Embodiments of the three-dimensional polymeric article described herein are useful 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.

    COMPOSITIONS COMPRISING CLEAVABLE CROSSLINKER AND METHODS
    14.
    发明申请
    COMPOSITIONS COMPRISING CLEAVABLE CROSSLINKER AND METHODS 有权
    包含可清洗交联剂的组合物和方法

    公开(公告)号：US20170066863A1

    公开(公告)日：2017-03-09

    申请号：US15119887

    申请日：2015-04-09

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jason D. Clapper ,  Dennis E. Vogel ,  Ann Rhea-Helene Fornof ,  Babu N. Gaddam

    IPC: C08F220/18 ,  C08J3/28 ,  C09J5/00 ,  C09J7/02 ,  C09J133/08 ,  C09J5/06

    CPC classification number: C08F220/18 ,  C08F222/1006 ,  C08F2220/1858 ,  C08F2800/20 ,  C08F2810/10 ,  C08J3/28 ,  C08J2333/08 ,  C09J4/00 ,  C09J5/00 ,  C09J5/06 ,  C09J7/385 ,  C09J133/062 ,  C09J133/08 ,  C09J133/10 ,  C09J2205/302 ,  C08F220/06 ,  C08F216/125 ,  C08F2222/1026

    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.

    Abstract translation: 描述了包含聚合物的组合物。 聚合物包含衍生自可切割交联单体的聚合单元。 可切割交联单体包含至少两个可自由基聚合的基团和至少一个具有式-O-C（R2）（R3）-O-的基团，其中R2和R3独立地是氢，烷基或芳基。 组合物的Tg不大于50℃。在一些实施方案中，组合物在25℃和1Hz下的储能模量大于3×10 5 Pa，并且可以表征为非粘性聚合物。 在其它实施方案中，组合物是压敏粘合剂。 在裂解衍生自可切割交联单体的聚合单体单元的至少一部分时，组合物表现出至少一种物理性质的变化。 在另一个实施方案中，组合物包含聚合物和片段。 这些片段包含与聚合物链键合的可自由基聚合基团和侧基羟基的反应产物。 组合物的Tg不大于50℃。还描述了包含本文所述组合物（即在切割之前和/或之后）的制品; 以及制作制品的方法和方法。

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