Process for releasing laminates
    1.
    发明授权
    Process for releasing laminates 失效
    脱模层压板的工艺

    公开(公告)号:US4263073A

    公开(公告)日:1981-04-21

    申请号:US82492

    申请日:1979-10-09

    摘要: A novel method of releasing from one another in a press pack, a plurality of heat and pressure consolidated resin-impregnated laminates, including those pressed back-to-back, e.g. decorative laminates, metal clad laminates, veneer backs and the like, which method comprises utilizing, as a separator sheet, a web of phenol-formaldehyde resin-free paper having a water absorption of at least about 200 seconds which has been sized on at least one side thereof, from an aqueous solution, with a water-soluble, alkaline earth or earth metal salt, e.g. a calcium salt such as calcium chloride, and then coated on said sized side with a film of a salt of alginic acid, such as sodium alginate.

    摘要翻译: 一种在压制包装中彼此释放的新型方法,多种热压固化的树脂浸渍层压板,包括背靠背压制的那些。 装饰层压板,金属复合层压板,胶合板背面等,该方法包括将至少约200秒的吸水性的无酚醛树脂纸的纤维网作为隔板,至少大小至少 其一面,由水溶液与水溶性,碱土金属或地球金属盐,例如, 钙盐如氯化钙,然后用藻酸盐如海藻酸钠的膜涂覆在所述尺寸的一侧上。