会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明专利
    • CROSS-LINKABLE THIXOTROPIC WOOD ADHESIVE GEL
    • CA2142579C
    • 1998-11-24
    • CA2142579
    • 1995-02-15
    • ELMER S PRODUCTS INC
    • COLUMBUS PETER SANDERSON JOHNPATEL YOGESHBHAI B
    • C08K3/16C08K7/02C08L1/00C09D131/04C09J101/00C09J131/04C09J133/04C09J133/26C09J9/00
    • A cross-linkable water-based wood adhesive comprised of a critical mixture of from 0.10 to 0.75 by weight of a water-soluble, high-viscosity thickening age nt polymer such as hydroxyethylcellulose, 0.05 - 0.40% by weight of a defoamer to dissipate foam quickly during manufacture, 25.00 to 45.00% by weight of solids o f a self-cross-linking polyvinyl acetate polymer (treated with N-methylolacrylamid e) dispersed in water, the polymer having a molecular weight of about 30,000 to abo ut 300,000, 1.00 - 3.00% by weight of a plasticizer/coalescing agent such as 2,2, 4-trimethyl-1,3 pentanediol monoisobutyrate, 0.50 to 1.00% of an acidic catalyst , such as aluminum chloride, 4.00 to 12% by weight of fine particle-size wood fibers (s oft or hard wood fibers or a mixture of both) and 0.10% by weight of a preservative. The viscosity of this adhesive gel will "break-down" when its container, e.g. a squeeze-bottle or flexible tube is finger-pressed resulting in a sufficiently lo w viscosity to allow for easy extrusion from the small orifices, approximately 0.1 0 inch diameter or a rectangular slit opening such as approximately 1/16" wide by 5/16" long of the adhesive application tips attached to such squeeze-bottles and flexi ble tubes. When pressure is released after the desired amount of adhesive flows out of the container, the adhesive quickly reverts very closely to its original gel sta te so that it will not "run" on vertical surfaces nor "spill" when used as a general purpos e wood adhesive. This adhesive has sufficient wet tack to hold two pieces of wood together while still allowing repositioning of the pieces of wood before drying. In addition, since this product contains real wood fibers, its dry film is stainabl e and easy to sand.