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    SYSTEM AND METHOD FOR MANUFACTURING HEAT-ACTIVABLE ADHESIVE PELLETS
    2.
    发明公开
    SYSTEM AND METHOD FOR MANUFACTURING HEAT-ACTIVABLE ADHESIVE PELLETS 有权
    系统VERFAHREN ZUR HERSTELLUNG VON HITZEAKTIVIERBAREM KLEBSTOFFGRANULAT

    公开(公告)号：EP2622039A1

    公开(公告)日：2013-08-07

    申请号：EP11778965.1

    申请日：2011-09-28

    申请人： A. Raymond et Cie

    发明人： BREMONT, Michel ,  AWKAL, Michel

    IPC分类号： C09J175/04 ,  B29C47/00

    CPC分类号： B29C47/0011 ,  B29B9/065 ,  B29B2009/163 ,  B29C47/0004 ,  B29C47/1027 ,  B29C47/1081 ,  C08G18/0895 ,  C08G18/1825 ,  C08G18/4063 ,  C08G18/42 ,  C08G18/6212 ,  C08G18/798 ,  C08G2170/20 ,  C08K3/36 ,  C09J175/04

    摘要： A method and an apparatus are provided for the production of heat-activable adhesive pellets which can be formed into elements for holding an article to a surface such as a glass surface. The apparatus and method for the manufacture of the heat-activable pellets includes the steps of introducing at least a first component comprising at least one difunctional polymer with at least one Multifunctional polymer into an extruder, heating the first component, introducing a second component comprising isocyanate and a powder flow enhancer (such as fumed silica) at a point downstream of the introduction of the first component, combining the first and second components in the extruder to form a flowable compound, pelletizing the extruded compound exiting the extruder by cutting to form heat-activable adhesive pellets, and drying the pellets. In one embodiment of the disclosed invention a catalyst is applied to the pellets to form catalyst-coated heat-activable adhesive pellets. In another embodiment of the disclosed invention a catalyst is added into the extruder to form catalyst-containing heat- activable adhesive pellets.

    摘要翻译： 提供了一种制造可热活化的粘合剂颗粒的方法和装置，其可以形成用于将制品保持在诸如玻璃表面的表面的元件。 用于制造可热活化丸剂的装置和方法包括以下步骤：将至少一种包含至少一种双官能聚合物的第一组分与至少一种多官能聚合物引入挤出机中，加热第一组分，引入包含异氰酸酯的第二组分 和在引入第一组分的下游点的粉末流动增强剂（例如热解法二氧化硅），在挤出机中组合第一和第二组分以形成可流动的化合物，通过切割将出料的挤出的化合物造粒，形成热量 可能的粘合剂颗粒，并干燥颗粒。 在所公开的发明的一个实施方案中，将催化剂应用于颗粒以形成催化剂涂覆的可热激活粘合剂颗粒。 在所公开的发明的另一个实施方案中，将催化剂加入到挤出机中以形成含催化剂的可热活化粘合剂颗粒。

    ADHESIVE POLYURETHANE POWDER CAPABLE OF BEING ACTIVATED BY HEAT
    3.
    发明公开
    ADHESIVE POLYURETHANE POWDER CAPABLE OF BEING ACTIVATED BY HEAT 审中-公开
    与热活化聚氨酯粘合剂粉末

    公开(公告)号：EP2571950A1

    公开(公告)日：2013-03-27

    申请号：EP11743616.2

    申请日：2011-05-19

    申请人： A. Raymond et Cie

    发明人： BREMONT, Michel ,  AWKAL, Michel

    IPC分类号： C09J175/04

    CPC分类号： C09J175/04 ,  C08G18/1816 ,  C08G18/1825 ,  C08G18/1841 ,  C08G18/2027 ,  C08G18/2054 ,  C08G18/2063 ,  C08G2170/00 ,  C08G2170/20

    摘要： A heat-activable powder adhesive composition for use in bonding a component to a surface such as glass is disclosed. The composition of the disclosed invention includes at least two polymers, at least one solid di- or poly-isocyanate in powder form, and a catalyst. The two polymers each have a melting point above 40 °C and are selected from the group consisting of di-functional polymers and multi¬ functional polymers. The preferred method of preparing the composition of the disclosed invention includes first forming three parts, including a first melted part comprising the polymers, a second melted part comprising the polymers and a catalyst, and a third part comprising the isocyanate. Once cooled, each of the first and second parts forms solid blocks which are fragmented and sieved. The three dry parts are then brought together to form the adhesive powder of the disclosed invention. The adhesive powder can be pre-applied to the attachment surface of a component to be bonded. The composition does not require either a deactivating agent or a blocking agent for deactivating the isocyanate or the catalyst nor does it require either a deactivated isocyanate or a deactivated catalyst.