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    Sulphonyltetrazoles as chemical blowing agents
    2.
    发明授权
    Sulphonyltetrazoles as chemical blowing agents 失效
    磺酰四唑作为化学发泡剂

    公开(公告)号：US4126590A

    公开(公告)日：1978-11-21

    申请号：US846286

    申请日：1977-10-28

    Applicant: Hugo Illy

    Inventor： Hugo Illy

    IPC: C07D257/04 ,  C08J9/06 ,  C08J9/10

    CPC classification number: C07D257/04 ,  C08J9/108

    Abstract: Sulfonyltetrazoles of formula I, ##STR1## wherein n is 1 or 2, A is alkylene and R is a mono- or divalent hydrocarbon residue, are usable as blowing agents for thermoplastic polymers. These compounds decompose at temperatures above 200.degree. C, therefore they can be used preferably for foaming thermoplasts of higher softening temperature such as aromatic polycarbonates, polyesters or polyethers.

    Abstract translation: 式I的磺酰基四唑，其中n为1或2，A为亚烷基，R为一价或二价烃残基，可用作热塑性聚合物的发泡剂。 这些化合物在高于200℃的温度下分解，因此它们可以优选用于发泡较软化温度的热塑性塑料，如芳族聚碳酸酯，聚酯或聚醚。

    Wood-like polymeric composition
    5.
    发明授权
    Wood-like polymeric composition 失效
    木质聚合物组合物

    公开(公告)号：US4833174A

    公开(公告)日：1989-05-23

    申请号：US272584

    申请日：1988-11-17

    Applicant: William C. T. Tung

    Inventor： William C. T. Tung

    IPC: C08J9/00 ,  C08J9/10

    CPC classification number: C08J9/0061 ,  C08J9/108 ,  C08J2367/02 ,  C08J2469/00

    Abstract: The labor costs associated with manufacturing wooden articles often represent a substantial portion of the total cost of producing the wooden article. This invention discloses a polymeric composition which can be easily molded into articles which have physical properties which are very similar to those of wood. By utilizing the polymeric composition and techniques of this invention, it is possible to manufacture a wide variety of wood-like articles by molding at reduced costs. This invention specifically reveals a polymeric composition which can be molded into articles having wood-like physical properties which is comprised of (1) from about 80 to about 99 weight percent polyethylene terephthalate, (2) from about 1 to about 20 weight percent of a polycarbonate, and (3) from about 0.3 to about 2 weight percent of 5-phenyltetrazole. These polymeric compositions can be prepared utilizing scrap polyethylene terephthalate, such as recycled polyethylene terephthalate beverage bottles.

    Abstract translation: 与制造木制品相关的人工成本通常代表生产木制品的总成本的很大一部分。 本发明公开了一种聚合物组合物，其可以容易地模制成具有与木材非常相似的物理性质的制品。 通过利用本发明的聚合物组合物和技术，可以以降低的成本通过模塑制造各种各样的木制品。 本发明具体揭示了一种聚合物组合物，其可被模塑成具有类似木材的物理性质的制品，其包括（1）约80至约99重量％的聚对苯二甲酸乙二醇酯，（2）约1至约20重量％ 聚碳酸酯，和（3）约0.3至约2重量％的5-苯基四唑。 这些聚合物组合物可以使用废聚对苯二甲酸乙二醇酯制备，例如再循环的聚对苯二甲酸乙

    Method for preparing diaza-cylopropanes
    9.
    发明授权
    Method for preparing diaza-cylopropanes 失效
    制备DIAZA-CYLOPROPAN的方法

    公开(公告)号：US3622566A

    公开(公告)日：1971-11-23

    申请号：US3622566D

    申请日：1969-03-03

    Applicant: BERGWERKSVERBAND GMBH

    Inventor： HUCK GEORGE ,  PAULSEN SIEGFRIED

    IPC: C08J9/10 ,  C08K5/3442 ,  C10L1/232 ,  C07D45/00

    CPC classification number: C10L1/232 ,  C08J9/108 ,  C08K5/3442

    Abstract: WHEREIN R'' and R'''' are as defined above.

    WHEREIN R'' is hydrogen or an alkyl group of one-five carbon atoms and R'''' is an alkyl group of one-five carbon atoms or phenyl; and R'' and R'''' when taken together with the carbon atoms of the diazapropane form cyclohexyl, said process comprising reacting chlorine and an excess of ammonia, the ammonia being present in a volume ratio of between 1:4 and 1:50, with a liquid carbonyl compound of the formula
    A process for the production of compounds of the formula:

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