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    METHOD FOR MAKING A CARPET USING OLEFIN BLOCK COPOLYMERS
    31.
    发明公开
    METHOD FOR MAKING A CARPET USING OLEFIN BLOCK COPOLYMERS 审中-公开

    公开(公告)号：EP3779034A3

    公开(公告)日：2021-02-24

    申请号：EP20192207.7

    申请日：2008-12-19

    申请人： Dow Global Technologies Llc

    发明人： PEPPER, Randy ,  MAGLEY, David ,  WEVERS, Ronald ,  FOWLER, Harold ,  YALVAC, Selim ,  LI PI SHAN, Colin ,  WEEKS, Ronald ,  JIN, Yi

    IPC分类号： D06N7/00 ,  B32B27/12 ,  B32B27/18 ,  B32B27/32 ,  B32B27/14 ,  B60N3/04

    摘要： A carpet includes (a) a primary backing which has a face and a back surface, (b) a plurality of fibers attached to the primary backing and extending from the face of the primary backing and exposed at the back surface of the primary backing, (c) an adhesive backing, (d) an optional secondary backing adjacent to the adhesive backing, and (e) at least one olefin block copolymer, especially ethylene based block copolymers. An olefin block copolymer is extrusion coated onto the back surface of a primary backing to provide an adhesive backing. Additional steps and procedures can include washing or scouring the primary backing and fibers prior to the extrusion step, and utilizing implosion agents. The preferred olefin block copolymer is an ethylene based block interpolymer. The constructions and methods are suited for making tufted, broad-loom carpet having improved abrasion resistance.

    HOT MELT ADHESIVE COMPOSITION INCLUDING A CRYSTALLINE BLOCK COMPOSITE
    36.
    发明公开
    HOT MELT ADHESIVE COMPOSITION INCLUDING A CRYSTALLINE BLOCK COMPOSITE 有权
    包括结晶块组合物的热熔胶粘剂组合物

    公开(公告)号：EP3183317A1

    公开(公告)日：2017-06-28

    申请号：EP15766952.4

    申请日：2015-08-20

    申请人： Dow Global Technologies LLC

    发明人： JIN, Yi ,  WALTON, Kim L. ,  MARCHAND, Gary R.

    IPC分类号： C09J153/00 ,  C09J123/14

    CPC分类号： C09J123/14 ,  C08L53/00 ,  C09J11/06 ,  C09J123/142 ,  C09J153/00

    摘要： A hot melt adhesive composition includes (A) 10-95 wt % of a random or homogeneous propylene-based interpolymer having: (i) a comonomer content of at least one of C2 and C4-10 a-olefin of 7 wt % to 49 wt % based on the total weight of the propylene-based interpolymer, (ii) an MWD of 4 or less, (iii) a density of 0.90 g/cc or less, and (iv) a Brookfield viscosity of less than 50,000 centipoise, (B) 1-60 wt % of a crystalline block composite comprising: (1) a crystalline ethylene based polymer; (2) a crystalline alpha-olefin based polymer derived from at least one of a C3-10 a-olefin; and (3) a block copolymer comprising 10-90 wt % of a crystalline ethylene block comprising greater than 90 mol % units derived from ethylene and comprising 10-90 wt % of a crystalline alpha-olefin block comprising greater than 90 mol % units derived from at least one of a C3-10 a-olefin, (C) Optionally, from greater than zero to 70 wt % tackifier, and (D) Optionally, from greater than zero to 40 wt % of at least one selected from the group of a wax and an oil.

    摘要翻译： 一种热熔粘合剂组合物，包括（A）10-95wt％的无规或均相丙烯基共聚体，其具有：（i）C 2和C 4-10α-烯烃中至少一种的共聚单体含量为7wt％至49wt％ （ii）MWD为4或更小，（iii）密度为0.90g / cc或更小，和（iv）小于50,000厘泊的布鲁克菲尔德（Brookfield）粘度，基于基于丙烯的共聚体的总重量， （B）1-60重量％的结晶嵌段复合物，其包含：（1）结晶乙烯基聚合物; （2）衍生自C3-10α-烯烃中的至少一种的结晶α-烯烃基聚合物; （3）嵌段共聚物，其包含10-90重量％的包含大于90摩尔％衍生自乙烯的单元的结晶乙烯嵌段和10-90重量％的包含大于90摩尔％衍生单元的结晶α-烯烃嵌段 （C）任选地，从大于零至70wt％的增粘剂，和（D）任选地，从大于0至40wt％的至少一种选自C3-10α-烯烃， 蜡和油。