Binders containing an aldehyde-based resin and an isocyanate-based resin and methods for making composite lignocellulose products therefrom
申请人:Georgia-Pacific Chemicals LLC
公开号:US10889716B2
公开(公告)日:2021-01-12
Binders, resinated furnishes, and methods for making composite lignocellulose products therefrom. The binder can include about 70 wt % to about 99.7 wt % of an aldehyde-based resin, about 0.3 wt % to about 30 wt % of an isocyanate-based resin, about 10 wt % to about 63 wt % of an extender, and about 145 wt % to about 230 wt % of water, where all weight percent values are based on a combined solids weight of the aldehyde-based resin and the isocyanate-based resin. The binder has a long pot life and can be used with lignocellulose substrates having a water content of 10 wt % or more.
粘合剂、树脂化成品以及用其制造复合木质纤维素产品的方法。粘合剂可包括约 70 重量%至约 99.7 重量%的醛基树脂、约 0.3 重量%至约 30 重量%的异氰酸酯基树脂、约 10 重量%至约 63 重量%的扩展剂以及约 145 重量%至约 230 重量%的水,其中所有重量百分比值均基于醛基树脂和异氰酸酯基树脂的合并固体重量。该粘合剂具有较长的固化寿命,可用于含水量为 10 wt % 或以上的木质纤维素基材。