Process for the production of stable dispersions, the dispersions so
produced, and the use thereof in the manufacture of polyurethanes
    61.
    发明授权
    Process for the production of stable dispersions, the dispersions so produced, and the use thereof in the manufacture of polyurethanes 失效
    用于生产稳定分散体的方法,如此制备的分散体及其在制备聚氨酯中的用途

    公开(公告)号:US4855352A

    公开(公告)日:1989-08-08

    申请号:US225403

    申请日:1988-07-28

    摘要: Stable finely-divided dispersions of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material are made by reacting (i) an isocyanate with (ii) a compound selected from polyamines, hydrazines, hydrazides and mixtures thereof in the presence of (iii) a hydroxyl compound selected from polyethers, polyesters, polyester amides, polycarbonates and mixtures thereof and (iv) a catalyst. The catalyst is a compound which catalyzes the reaction of isocyanate groups with hydroxyl groups. The catalyst is used in a quantity of at least 50 parts per million parts of (i), (ii) and (iii). These dispersions are particularly useful in the production of polyurethanes.

    摘要翻译: 通过使(i)异氰酸酯与(ii)选自多胺,肼,酰肼及其混合物的化合物在(iii)的存在下,使(ⅰ)异氰酸酯与(ⅱ)化合物反应,制备聚脲和/或聚肼基二酰胺在含羟基的材料中的稳定的微细分散体。 )选自聚醚,聚酯,聚酯酰胺,聚碳酸酯及其混合物的羟基化合物和(iv)催化剂。 催化剂是催化异氰酸酯基与羟基反应的化合物。 催化剂的用量至少为(i),(ii)和(iii)每百万份的50份。 这些分散体在聚氨酯的生产中特别有用。

    USE OF CARBOXYLIC ACID HYDRAZIDE FOR DE-BONDING POLYURETHANE ADHESIVES
    66.
    发明申请
    USE OF CARBOXYLIC ACID HYDRAZIDE FOR DE-BONDING POLYURETHANE ADHESIVES 审中-公开
    用于脱粘聚氨酯粘合剂的羧酸加氢酸酯的用途

    公开(公告)号:US20100323202A1

    公开(公告)日:2010-12-23

    申请号:US12819731

    申请日:2010-06-21

    摘要: This disclosure relates to the use of carboxylic acid hydrazide for de-bonding (e.g., detaching) polyurethane adhesives. The carboxylic acid hydrazide is present in the polyurethane adhesive as a solid in free form and is thus not incorporated in the polymer. When the adhesive is heated to a temperature of at least 80° C., the polymer is thermally degraded. With such an adhesive, components that are bonded in such a way can be detached in a simple method, by which the repair, the use or the recycling of the components is more easily possible.

    摘要翻译: 本公开涉及羧酸酰肼用于脱粘合(例如,分离)聚氨酯粘合剂的用途。 羧酸酰肼作为固体以游离形式存在于聚氨酯粘合剂中,因此不加入聚合物中。 当粘合剂被加热到至少80℃的温度时,聚合物被热降解。 通过这样的粘合剂,以这种方式结合的部件可以以简单的方法拆卸,由此可以更容易地进行部件的修理,使用或再循环。

    Self-crosslinkable waterborne coating composition
    70.
    发明申请
    Self-crosslinkable waterborne coating composition 有权
    自交联水性涂料组合物

    公开(公告)号:US20060122330A1

    公开(公告)日:2006-06-08

    申请号:US10530975

    申请日:2003-09-18

    IPC分类号: C08F8/30

    摘要: The present invention provides a crosslinkable waterborne coating composition useful for providing protective coating to wood and other substrates. The coating composition includes a vinyl addition latex polymer having a first crosslinkable functional group and a polyurethane dispersion having a second crosslinkable functional end group. The coating composition is preferably essentially formaldehyde free.

    摘要翻译: 本发明提供了可用于向木材和其它基材提供保护性涂层的可交联水性涂料组合物。 涂料组合物包括具有第一可交联官能团的乙烯基加成胶乳聚合物和具有第二可交联官能端基的聚氨酯分散体。 涂料组合物优选基本上不含甲醛。