Manufacture of insulated glass units
    1.
    发明授权
    Manufacture of insulated glass units 失效
    绝缘玻璃装置的制造

    公开(公告)号:US5567258A

    公开(公告)日:1996-10-22

    申请号:US442911

    申请日:1995-05-17

    摘要: An insulated glass unit comprises two sheets of glass separated by an aluminum spacer, a thermosetting resin sealant such as a polysulphide or polyurethane sealant or a hot melt butyl sealant being applied around the edges of the unit to seal the sheets together. The spacer is connected by corner keys made of aluminum tape. Curing or melt-bonding of the sealant is accelerated by the application of microwave energy, suitably by passing the unit through a tunnel with microwave generators on each side thereof. The unit passes through the tunnel on a conveyor held upright by pinch chains. The conveyor and pinch chains are made of a nonpolar material such as polypropylene.

    摘要翻译: 隔热玻璃单元包括由铝隔离物分离的两片玻璃,诸如多硫化物或聚氨酯密封剂的热固性树脂密封剂或加热单元边缘周围的热熔性丁基密封剂以将片材密封在一起。 垫片由铝带制成的角键连接。 通过施加微波能量来加速密封剂的固化或熔融粘合,适当地通过使单元穿过其每侧的微波发生器的隧道。 该单元穿过通过夹紧链直立的输送机上的隧道。 输送机和夹紧链由非极性材料如聚丙烯制成。

    Curing of polysulphides
    2.
    发明授权
    Curing of polysulphides 失效
    固化多糖

    公开(公告)号:US5177182A

    公开(公告)日:1993-01-05

    申请号:US572941

    申请日:1990-11-05

    IPC分类号: C08L81/04 C08G75/14

    CPC分类号: C08G75/14

    摘要: A process for the manufacture of a partially cured polysulphide composition is provided, the curing of which is completed upon exposure of the composition to atmospheric moisture. The process comprises mixing a prepolymer with a water activatable curing agent and subjecting the composition to a partial cure with water. The reaction is then stopped by rapid dehydration after the initial induction stage of the reaction prior to the rapid increase in the viscosity of the composition. Curing of the composition is then completed by exposing the composition to atmospheric moisture.

    Single-component polysulphide based sealant compositions
    3.
    发明授权
    Single-component polysulphide based sealant compositions 失效
    单组分多硫化物基密封剂组合物

    公开(公告)号:US5409985A

    公开(公告)日:1995-04-25

    申请号:US200873

    申请日:1994-02-22

    IPC分类号: C08G75/14 C08K3/34

    CPC分类号: C08G75/14

    摘要: A one-part polysulfide sealant composition comprises a mercaptan-terminated liquid polysulfide, an oxidising agent to cure the catalyst a desiccant such as a molecular sieve, to keep the composition dry and thus prevent premature activation of the catalyst, and a cure accelerator having an acrylate or methacrylate functionality of 2 or more, preferably an acrylated liquid polysulfide or a polyfunctional methacrylate monomer. The use of this accelerator avoids the need for toxic amounts of barium oxide desiccant and substantially shortens the tack-free time on curing.

    摘要翻译: 一部分多硫化物密封剂组合物包含硫醇封端的液体多硫化物,用于使催化剂固化干燥剂如分子筛的氧化剂,以保持组合物干燥并因此防止催化剂的过早活化,以及具有 丙烯酸酯或甲基丙烯酸酯官能度为2以上,优选丙烯酸酯化的液体多硫化物或多官能甲基丙烯酸酯单体。 使用这种促进剂避免了对有毒量的氧化钡干燥剂的需要,并且大大缩短了固化时的无粘性时间。