Laminar product and process for preparing the same
    2.
    发明授权
    Laminar product and process for preparing the same 失效
    层压制品及其制备方法

    公开(公告)号:US06521347B1

    公开(公告)日:2003-02-18

    申请号:US09601529

    申请日:2000-08-02

    IPC分类号: B32B1700

    摘要: A laminar structure comprised of at least one layer of glass and a sheet of plasticized PVB containing an adhesion control agent is provided wherein pin point pockets of air which are entrapped in said sheet coalesce and cause delamination of said structure, delayed delamination and associated defects are prevented by adding a nucleating agent with the plasticized PVB by coating the sheet or glass surface with a nucleating agent, by extruding the PVB sheet with the nucleating agent in the composition, or by forming the nucleating agent in situ during the extrusion or lamination process.

    摘要翻译: 提供了由至少一层玻璃构成的层状结构和含有粘合控制剂的增塑PVB片,其中被截留在所述片中的空气的针尖穴袋聚结并引起所述结构的分层,延迟分层和相关缺陷是 通过用成核剂涂布片材或玻璃表面,通过用组合物中的成核剂挤出PVB片材,或通过在挤出或层压过程中原位形成成核剂来防止通过用增塑PVB添加成核剂。

    Filled thermoplastic films
    3.
    发明授权
    Filled thermoplastic films 失效
    填充热塑性薄膜

    公开(公告)号:US3980611A

    公开(公告)日:1976-09-14

    申请号:US324876

    申请日:1973-01-18

    摘要: A thermoplastic film having dispersed therein an inert material consisting essentially of:1. coarse particles having a size greater than 2.5 microns in a concentration determined by the formulaC.sub.1 = K.sub.coarse/T 0.6where C.sub.1 is the concentration of coarse particles in parts per million, K.sub.coarse is at least equal to an emperically determined value of K.sub.coarse at the minimum concentration of coarse particles which permits escape of air during film wind-up, and T is film thickness in mils,2. medium particles having a size of 1 to 2.5 microns in a concentration determined by the formulaC.sub.2 = K.sub.medium/T 0.6where C.sub.2 is the concentration of medium particles in parts per million, K.sub.medium is no greater than an emperically determined value of K.sub.medium at the concentration of medium particles in a film having a clarity of 50%, and T is film thickness in mils, and3. fine particles having a size less than 1 micron in a concentration determined by the formula:C.sub.3 = K.sub.fine/T 0.6where C.sub.3 is the concentration of fine particles in parts per million, K.sub.fine is at least equal to an emperically determined value of K.sub.fine at an effective concentration of fine particles to give a film static coefficient of friction less than about 1, and T is film thickness in mils, with the provisos that:A. the total K.sub.total = K.sub.coarse + K.sub.medium + K.sub.fine is equal to or less than about 2,510, andB. the ratio of K.sub.medium /K.sub.total is equal to or less than about 0.3Also a process for preparing the film. The filler material provides excellent winding characteristics while maintaining commercially acceptable clear films.

    摘要翻译: 一种其中分散有惰性材料的热塑性薄膜,主要由以下组成: