Extensible flatback adhesive sheet
    134.
    发明授权
    Extensible flatback adhesive sheet 失效
    可拉伸平背胶

    公开(公告)号:US5496601A

    公开(公告)日:1996-03-05

    申请号:US195873

    申请日:1994-02-14

    Abstract: The present invention provides an adhesive sheet that is extensible and conformable. The sheet comprises a non-creped flatback paper backing comprising cellulosic fibers and an elastomeric saturant and having an elongation at break of at least 8%; and an adhesive coating on at least a portion of at least one major surface of said backing. No mechanical means is used to generate extensibility or conformability in the backing of the adhesive sheet of the invention. The adhesive sheet combines all the advantages of a smooth flatback tape and the extensibility and conformability of a creped or microcreped tape.

    Abstract translation: 本发明提供一种可伸长和贴合的粘合片。 该片材包括非起皱的平背纸背衬,其包含纤维素纤维和弹性体饱和剂,断裂伸长率至少为8%; 以及在所述背衬的至少一个主表面的至少一部分上的粘合剂涂层。 在本发明的粘合片的背衬中没有使用机械手段产生延展性或顺应性。 粘合片结合了平滑平背带的所有优点以及起皱或微胶带的可延展性和适应性。

    Polyurethane dispersions for book binding
    137.
    发明授权
    Polyurethane dispersions for book binding 失效
    用于书本装订的聚氨酯分散体

    公开(公告)号:US5443674A

    公开(公告)日:1995-08-22

    申请号:US938872

    申请日:1992-08-31

    Abstract: A method of binding book blocks to form books is disclosed. The method involves applying an aqueous composition to the spine area of a book block and removing the volatile components of the composition. The composition comprises (1) an aqueous vehicle, a film-forming polymeric resin, and a polyurethane resin or (2) an aqueous polyurethane dispersion or emulsion. The composition may also include an alkaline component. In another embodiment, the composition comprises a mixture of an aqueous, film-forming polymeric latex, an alkaline component to adjust the pH the latex to that of an aqueous polyurethane dispersion, and the aqueous polyurethane dispersion.

    Abstract translation: 公开了一种绑定书籍以形成书籍的方法。 该方法包括将水性组合物施用到书本块的脊部区域并除去组合物的挥发性组分。 组合物包含(1)水性载体,成膜聚合物树脂和聚氨酯树脂或(2)水性聚氨酯分散体或乳液。 组合物还可以包括碱性组分。 在另一个实施方案中,组合物包含水性,成膜聚合物胶乳,碱性组分的混合物,以将胶乳的pH调节为水性聚氨酯分散体的pH和水性聚氨酯分散体。

    Production of pressure sensitive hot melt-adhesive coated tape
    139.
    发明授权
    Production of pressure sensitive hot melt-adhesive coated tape 失效
    生产压敏热熔胶带

    公开(公告)号:US5322709A

    公开(公告)日:1994-06-21

    申请号:US875162

    申请日:1992-04-28

    CPC classification number: C09J7/0207 Y10T428/28 Y10T428/2813 Y10T428/2883

    Abstract: In the production of a pressure sensitive adhesive tape comprising the steps of compounding and applying a hot melt adhesive composition to a tape backing, and allowing the hot melt adhesive to cool and thereby solidify to a pressure sensitive adhesive coating on said tape, the improvement which comprises incorporating into the hot melt adhesive composition a blowing agent which does not decompose under the conditions of compounding and application of the hot melt adhesive composition, and thereafter decomposing the blowing agent, thereby to impart to the hot melt coating a cellular structure.

    Abstract translation: 在压敏粘合带的生产中,包括以下步骤:将热熔粘合剂组合物混合并施加到带背衬上,并允许热熔粘合剂冷却,从而固化到所述带上的压敏粘合剂涂层上,其改进在于 包括在热熔粘合剂组合物中加入在配合和施加热熔粘合剂组合物的条件下不分解的发泡剂,然后分解发泡剂,从而赋予热熔涂层细胞结构。

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