Hydroxyl-functionalised polyurethane hot melt prepolymer
    6.
    发明授权
    Hydroxyl-functionalised polyurethane hot melt prepolymer 有权
    羟基官能化聚氨酯热熔预聚物

    公开(公告)号:US08653221B2

    公开(公告)日:2014-02-18

    申请号:US12992177

    申请日:2009-05-12

    IPC分类号: C08G18/00

    摘要: The invention relates to hydroxyl-functionalised polyurethane hot melt prepolymers comprising the chemical reaction product of isocyanate-reactive starting materials with at least one isocyanate-containing starting material. Said prepolymers are characterized in that the isocyanate-reactive starting materials of the hydroxyl-functionalised polyurethane hot melt prepolymers have a polypropylene glycol with a functionality higher than two and a number-average molar mass higher than or equal to 3,000 g/mol, a polypropylene glycol with a functionality less than or equal to two and a number-average molar mass less than or equal to 1,000 g/mol, and a chain lengthener with a functionality less than or equal to 500 g/mol, and the isocyanate-containing starting material of the hydroxyl-functionalised polyurethane hot melt prepolymer has an aliphatic or alicyclic diisocyanate.

    摘要翻译: 本发明涉及羟基官能化聚氨酯热熔预聚物,其包含异氰酸酯反应性原料与至少一种含异氰酸酯的原料的化学反应产物。 所述预聚物的特征在于,羟基官能化的聚氨酯热熔预聚物的异氰酸酯反应性起始材料具有官能度高于2的平均摩尔质量高于或等于3,000g / mol的聚丙二醇,聚丙烯 功能小于或等于2的二醇,数均摩尔质量小于或等于1,000g / mol,官能度小于或等于500g / mol的链加长剂和含异氰酸酯的起始物 羟基官能化聚氨酯热熔预聚物的材料具有脂族或脂环族二异氰酸酯。

    Removable polyurethane PSA
    8.
    发明授权
    Removable polyurethane PSA 有权
    可拆卸聚氨酯PSA

    公开(公告)号:US07495059B2

    公开(公告)日:2009-02-24

    申请号:US11474307

    申请日:2006-06-23

    IPC分类号: C08F283/04 C09J201/00

    摘要: Polyurethane-based pressure-sensitive adhesive, characterized in that the polyurethane is composed of the following starting materials which are reacted catalytically with one another in the stated proportions: a) at least one aliphatic or alicyclic polyisocyanate having a functionality of in each case less than or equal to three, b) a combination of at least one triol A based on polypropylene glycol and having an average number-averaged molecular weight Mn of less than or equal to 1000 and a triol B based on polypropylene glycol and having an average number-averaged molecular weight Mn of greater than or equal to 1000, preferably greater than or equal to 3000, the ratio of the number of hydroxyl groups of the triol component A to the number of hydroxyl groups of the triol component B being between greater than 0 and 12, the ratio of the number of isocyanate groups to the total number of hydroxyl groups being between 0.8 and 1.15, preferably between 0.95 and 1.05, the catalyst for the reaction to the polyurethane consisting of or comprising a compound comprising bismuth and carbon, preferably a bismuth carboxylate or a bismuth carboxylate derivative.

    摘要翻译: 聚氨酯类压敏粘合剂,其特征在于,所述聚氨酯由以下起始材料组成,所述原料以规定的比例彼此催化反应:a)至少一种脂族或脂环族多异氰酸酯,其功能性在每种情况下小于 或等于3,b)至少一种基于聚丙二醇的三醇A与平均数均分子量Mn小于或等于1000的组合,以及基于聚丙二醇的三醇B, 平均分子量Mn大于或等于1000,优选大于或等于3000,三醇组分A的羟基数与三醇组分B的羟基数之比在大于0和 如图12所示,异氰酸酯基数与羟基的总数的比例为0.8-1.15,优选在0.95和1.05之间,用于 由包含铋和碳的化合物组成或包含的聚氨酯反应,优选羧酸铋或羧酸铋衍生物。

    PRESSURE-SENSITIVE ADHESIVE FROM A RESIN-MODIFIED POLYURETHENE
    9.
    发明申请
    PRESSURE-SENSITIVE ADHESIVE FROM A RESIN-MODIFIED POLYURETHENE 有权
    来自改性聚氨酯的压敏粘合剂

    公开(公告)号:US20100132885A1

    公开(公告)日:2010-06-03

    申请号:US12374071

    申请日:2007-06-27

    IPC分类号: C09J175/00 B05D5/10 B32B37/12

    摘要: Pressure-sensitive adhesive based on a mixture of chemically crosslinked polyurethane and at least one hydrocarbon resin, the chemically crosslinked polyurethane being a reaction product of at least one aliphatic or alicyclic polyisocyanate and a combination of at least one polypropylene glycol diol and one polypropylene glycol triol, reacted with one another catalytically in the presence of the at least one hydrocarbon resin, the at least one hydrocarbon resin being a monomer resin of the styrene/α-methylstyrene type.

    摘要翻译: 基于化学交联的聚氨酯和至少一种烃树脂的混合物的压敏粘合剂,化学交联的聚氨酯是至少一种脂族或脂环族多异氰酸酯与至少一种聚丙二醇二醇和一种聚丙二醇三醇的组合的反应产物 在所述至少一种烃树脂的存在下彼此催化反应,所述至少一种烃树脂是苯乙烯/α-甲基苯乙烯类型的单体树脂。

    Polyurethane PSA
    10.
    发明授权
    Polyurethane PSA 有权
    聚氨酯PSA

    公开(公告)号:US07160976B2

    公开(公告)日:2007-01-09

    申请号:US10816277

    申请日:2004-04-01

    IPC分类号: C08G18/48

    摘要: Pressure-sensitive adhesive based on polyurethane, characterized in that the polyurethane is composed of the following starting materials which are reacted with one another in the stated proportions: a) at least one aliphatic or alicyclic diisocyanate having in each case an asymmetrical molecular structure, b) a combination of at least one polypropylene glycol diol and at least one polypropylene glycol triol, the ratio of the number of hydroxyl groups in the diol component to the number of hydroxyl groups in the triol component being between 0.7 and 9.0, preferably between 1.5 and 2.5, additionally the ratio of the number of isocyanate groups to the total number of hydroxyl groups being between 0.9 and 1.1, preferably between 0.95 and 1.05, and the diols and triols alternatively being selected and combined in each case as follows: diols having a molecular weight of less than or equal to 1000 are combined with triols whose molecular weight is greater than 1000, preferably greater than or equal to 3000, diols having a molecular weight of greater than 1000 are combined with triols whose molecular weight is less than 1000.

    摘要翻译: 基于聚氨酯的压敏粘合剂,其特征在于,所述聚氨酯由以下起始原料组成,所述原料以规定的比例彼此反应:a)至少一种脂族或脂环族二异氰酸酯,在每种情况下均为不对称分子结构,b )至少一种聚丙二醇二醇和至少一种聚丙二醇三醇的组合,二醇组分中的羟基数与三醇组分中的羟基数之比为0.7至9.0,优选为1.5至 另外,异氰酸酯基数与羟基总数的比例在0.9和1.1之间,优选在0.95和1.05之间,二醇和三醇在各种情况下可以选择和组合,如下所示:具有分子 小于或等于1000的重量与分子量大于1000,优选大于o的三醇组合 r等于3000,分子量大于1000的二醇与分子量小于1000的三醇组合。