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    • 3. 发明申请
    • GLUING SUBSTRATES TOGETHER BY MEANS OF A SINGLE-COMPONENT POLYURETHANE ADHESIVE
    • 粘结基材由单个部件聚氨酯胶的方式
    • WO2012163696A2
    • 2012-12-06
    • PCT/EP2012059276
    • 2012-05-18
    • HENKEL AG & CO KGAASEBESTIAN MILANKOLENDA FELICITAS
    • SEBESTIAN MILANKOLENDA FELICITAS
    • C08J9/14
    • C09J5/08C08G18/2081C08G18/4804C08G18/5096C08G18/7664C08G2170/60C08J9/142C08J9/146C08J2203/12C08J2203/142C08J2207/02C08J2207/04C09J175/08C09J2475/00
    • The invention relates to a method for gluing substrates together, comprising at least the following steps: applying a single-component polyurethane adhesive to at least one of the substrates to be glued together, wherein the single-component polyurethane adhesive contains at least one blowing agent selected from dimethyl ether, 1,1-difluoroethane (R 152a) and dimethoxymethane (methylal) and is applied from a pressurized container in the form of a foam; and subsequently pressing together the substrates to be glued together. The invention further relates to a single-component polyurethane adhesive for use in said method, containing 30 to 70 wt% of at least one compound having two or more, optionally blocked, isocyanate groups, 20 to 60 wt% of at least one compound comprising at least two hydroxy groups, 0.01 to 2.5 wt% of at least one hardening catalyst, 5 to 49.99 wt% of at least one blowing agent, and 0 to 10 wt% of at least one foam stabilizer, each based on the total weight of the single-component polyurethane adhesive, wherein the content of dimethyl ether, 1,1-difluoroethane and dimethoxymethane is at least 50 wt% based on the total quantity of blowing agents that are present.
    • 一种用于粘结基材的方法,包括至少以下步骤: - 施加的单组分聚氨酯胶粘剂,以将被粘合的基材中的至少一个,从二甲醚,1,1-二氟乙烷(R 152A)中选出的至少一种推进剂的单组分聚氨酯胶粘剂和二甲氧基甲烷(甲缩醛 ),以及从压力容器中以泡沫的形式施加,随后压缩该底物结合,并且在这个过程中使用的单组分聚氨酯胶粘剂,包含 - 30〜70重量%的至少一种化合物的%的具有两个或更多个,如适用 封端的异氰酸酯基, - 20〜60重量%的至少一个具有化合物至少两个羟基的%, - 0.01〜2.5重量%,至少一种固化催化剂的, - 从5至49.99重量 至少一种发泡剂,和的% - 0〜10重量%的至少一种泡沫稳定剂的%,各自基于荣的总重量 nkomponenten聚氨酯粘合剂,其特征在于,含有二甲醚,1,1-二氟乙烷和二甲氧基甲烷的比例,基于发泡剂的总量,为至少50重量%。