申请人:Ameritherm, Inc.
公开号:EP1548081A2
公开(公告)日:2005-06-29
A susceptor composition that can bond two or more layers or substrates to one another and that can be used to coat a cut substrate. The susceptor composition is activated in the presence of radio frequency (RF) energy. In one embodiment, the susceptor composition of the present invention comprises a susceptor and a carrier. The carrier and susceptor are blended with one another and form a mixture, preferably a uniform mixture. The susceptor is present in an amount effective to allow the susceptor composition to be heated by RF energy. In a preferred embodiment, the susceptor also functions as an adhesive. The susceptor is an ionic or polar compound and acts as either a charge-carrying or an oscillating/vibrating component of the susceptor composition. The susceptor generates thermal energy in the presence of an RF electromagnetic or electrical field (hereafter RF field). According to the present invention, the susceptor can be an inorganic salt (or its respective hydrate), such as stannous chloride (SnCl2) or lithium perchlorate (LiC1O4), or an organic salt, such as lithium acetate (LiC2H3O2). The susceptor can be a non-ferromagnetic ionic salt. The susceptor can also be a polymeric ionic compound ("ionomer") which preferably also functions as an adhesive and/or coating. Under RF power levels of about 0.5 kilowatt (kW) to 1kW, and frequencies of about 1 to 100 MHz, the susceptor compositions of the present invention facilitates the bonding of single layers of polymeric materials such as polyolefins, non-polyolefins, and non-polymeric materials, as well as multilayer stacks of these materials.
一种可将两层或多层基底相互粘合并可用于涂覆切割基底的感光剂组合物。在射频(RF)能量的作用下,易感剂组合物会被激活。在一个实施方案中,本发明的感光剂组合物包括感光剂和载体。载体和受感剂相互混合,形成混合物,最好是均匀的混合物。易感剂的存在量可有效地使易感剂组合物被射频能量加热。在一个优选的实施方案中,易感剂还具有粘合剂的功能。受体是一种离子或极性化合物,可作为受体组合物的电荷携带或振荡/振动成分。在射频电磁场或电场(以下简称射频场)的作用下,易感体产生热能。根据本发明,感热体可以是无机盐(或其各自的水合物),如氯化亚锡(SnCl2)或高氯酸锂(LiC1O4),也可以是有机盐,如醋酸锂(LiC2H3O2)。受体可以是非铁磁性离子盐。感应器也可以是聚合物离子化合物("离子聚合物"),最好还能用作粘合剂和/或涂层。在约 0.5 千瓦至 1 千瓦的射频功率水平和约 1 至 100 兆赫的频率下,本发明的感 应器组合物可促进聚烯烃、非聚烯烃和非聚合物材料等聚合物材料的单层粘合,以及 这些材料的多层堆叠。