Process for the preparation of aromatic O-sulfocarboxylic acids and
sulfonylureas
    113.
    发明授权
    Process for the preparation of aromatic O-sulfocarboxylic acids and sulfonylureas 失效
    制备芳香族O-磺基羧酸和磺酰脲类的方法

    公开(公告)号:US5883253A

    公开(公告)日:1999-03-16

    申请号:US860149

    申请日:1997-06-19

    CPC分类号: C07D405/12 C07C303/22

    摘要: The invention relates to a process for the prepn of ortho-sulfocarboxylic acids, which comprises: a) in a first reaction step, diazotizing an aromatic o-aminosulfonic acid in the presence of an acid and nitrite in water, in an organic solvent or in a mixture thereof, to an o-diazonium sulfonate, and, b) in a second reaction step, reacting the o-diazonium sulfonate in the presence of a palladium catalyst in water, in an organic solvent or in a mixture thereof, with carbon monoxide, under overpressure, to an aromatic o-sulfocarboxylic acid. The invention also relates to a process for the preparation of sulfonylureas using o-sulfocarboxylic acids as intermediates. Thus, 4-methoxyaniline-2-sulfonic acid was diazotized and treated with CO to give 97% 4-methoxybenzoic acid 2-sulfonic acid.

    摘要翻译: PCT No.PCT / EP95 / 04865 Sec。 371日期:1997年6月19日 102(e)日期1997年6月19日PCT提交1995年12月11日PCT公布。 WO96 / 19443 PCT出版物 日期1996年6月27日本发明涉及一种制备邻磺基羧酸的方法,其包括:a)在第一反应步骤中,在酸和亚硝酸盐存在下,在水中,在芳族邻氨基磺酸的存在下,在 有机溶剂或其混合物中的重氮磺酸盐,和b)在第二反应步骤中,在钯催化剂存在下,在有机溶剂或混合物中,在钯催化剂存在下,使邻 - 重氮磺酸盐反应 其中一氧化碳在过压下加入到芳族邻磺基羧酸中。 本发明还涉及使用邻磺基羧酸作为中间体制备磺酰脲的方法。 因此,将4-甲氧基苯胺-2-磺酸重氮化并用CO处理,得到97%的4-甲氧基苯甲酸2-磺酸。

    Process for manufacturing locket-halves
    117.
    发明授权
    Process for manufacturing locket-halves 失效
    制造小盒半的工艺

    公开(公告)号:US5479798A

    公开(公告)日:1996-01-02

    申请号:US50218

    申请日:1993-04-27

    申请人: Manfred Muller

    发明人: Manfred Muller

    摘要: The process for producing locket-halves where a locket-half shell is formed from a first sheet, an annular groove is stamped into a second sheet, the external diameter of the groove being substantially the same as that of the locket-half shell. The portion of the sheet enclosed by the inner edge of the groove of the second sheet is removed to form a perforated plate, the locket-half shell is soldered to the perforated sheet, and the part of the second sheet extending beyond the outer edge of the groove of the sheet after the groove is stamped on is then separated.

    摘要翻译: PCT No.PCT / EP91 / 01990 Sec。 371日期:1993年4月27日 102(e)日期:1993年4月27日PCT 1991年10月19日PCT PCT。 出版物WO92 / 07484 日期:1992年5月14日。从第一片形成小盒半壳的方法,将环形凹槽冲压成第二片,该凹槽的外径基本上与 小盒半壳。 由第二片的槽的内边缘包围的片的部分被去除以形成多孔板,将该盒半壳焊接到穿孔片上,并且第二片的部分延伸超过 然后分隔凹槽之后的片材的凹槽。

    Radically curable coating compositions and their use for coating wood
substrates
    118.
    发明授权
    Radically curable coating compositions and their use for coating wood substrates 失效
    可自由基固化的涂料组合物及其用于涂覆木质基材的用途

    公开(公告)号:US5470897A

    公开(公告)日:1995-11-28

    申请号:US234753

    申请日:1994-04-28

    摘要: A radically curable coating composition containing) 50 to 95 parts by weight of an unsaturated polyester component having a viscosity at 23.degree. C. of 1,000 to 15,000 mPa.s, B) 5 to 50 parts by weight of compounds containing (meth)acryloyl groups and/or vinyl ether groups, C) 0.01 to 0.3 wt. %, based on the total weight, of waxes and/or paraffins having a melting point of 35+ to 100.degree. C. and D) 0 to 10 wt. %, based on the total weight, of at least one plasticizer or carbamic acid resin, and the use of the coating composition for coating substrates, in particular wood substrates.

    摘要翻译: 一种可自由基固化的涂料组合物,其含有50至95重量份的在23℃下的粘度为1,000至15,000mPa.s的不饱和聚酯组分,B)5至50重量份含(甲基)丙烯酰基的化合物 和/或乙烯基醚基,C)0.01〜0.3重量% %,基于总重量,熔点为35℃至100℃的蜡和/或链烷烃,和D)0至10重量%。 基于总重量,至少一种增塑剂或氨基甲酸树脂,以及用于涂覆基材,特别是木质基材的涂料组合物的用途。