Aromatic polyphosphonates and a process for their production
    6.
    发明授权
    Aromatic polyphosphonates and a process for their production 失效
    芳香族聚膦酸酯及其生产工艺

    公开(公告)号:US4331614A

    公开(公告)日:1982-05-25

    申请号:US160646

    申请日:1980-06-18

    CPC分类号: C08G79/04

    摘要: Thermoplastic, branched aromatic polyphosphonates with average molecular weights (number average M.sub.n) of from 11,000 to more than 200,000, obtainable by transesterifying (a) from 97 to 100 moles of at least one diaryl phosphonate, and (b) from 0 to 3 moles of at least one triaryl phosphate--the sum of the moled of (a) and (b) being 100--with (c) from 90 to 99 moles of at least one aromatic dihydroxy compound, and (d) from 0 to 3 moles of at least one aromatic trihydroxy or tetrahydroxy compound--with the proviso that at least one of the components (b) and (d) is present in a quantity of at least 0.001 mole and that, where (b) and (d) are used, the maximum limit on the moles is 3.0.

    摘要翻译: 平均分子量(数均Mn)为11,000至大于200,000的热塑性支链芳族聚膦酸酯,可通过(a)97-100摩尔的至少一种二芳基膦酸酯和(b)0-3摩尔的 至少一种磷酸三芳基酯,(a)和(b)的衍生物的总和为100-(c)90-99摩尔的至少一种芳族二羟基化合物,和(d)0-3摩尔的 至少一种芳族三羟基或四羟基化合物 - 条件是组分(b)和(d)中的至少一种以至少0.001摩尔的量存在,并且使用(b)和(d)时, 摩尔数的最大限度为3.0。

    Lower alkyl di propargyl phosphates
    7.
    发明授权
    Lower alkyl di propargyl phosphates 失效
    低级烷基二炔丙基磷酸酯

    公开(公告)号:US4257987A

    公开(公告)日:1981-03-24

    申请号:US76053

    申请日:1979-09-17

    摘要: Synergistic arthropodicidal compositions containing (1) a phosphorus-containing compound of the formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 each independently is an optionally substituted alkyl, alkenyl or aryl radical, at least one of R.sup.1, R.sup.2 and R.sup.3 being an optionally substituted alkenyl radical unsaturated in the 2-position,X is oxygen or sulphur, andY and Z each independently is oxygen, sulphur or a direct bond; and if both Y and Z are oxygen or sulphur or a direct bond, then any of R.sup.1, R.sup.2 and R.sup.3 can denote propargyl in addition to the radicals indicated above,and (2) at least one (A) carbamate, (B) carboxylic acid ester, (C) phosphoric acid ester other than (1), (D) halogenocycloalkane or (E) halogenoalkane.

    摘要翻译: 含有(1)式(IMAGE)的含磷化合物的协同节肢动物杀伤组合物,其中R 1,R 2和R 3各自独立地是任选取代的烷基,烯基或芳基,R 1,R 2和R 3中的至少一个是任选的 2-取代的烯基不饱和,X是氧或硫,Y和Z各自独立地是氧,硫或直接键; 并且如果Y和Z都是氧或硫或直接键,则除了上述基团之外,R 1,R 2和R 3中的任一个可以表示炔丙基,和(2)至少一个(A)氨基甲酸酯,(B)羧酸 酸酯,(C)除(1),(D)卤代环烷烃或(E)卤代烷烃以外的磷酸酯。

    Preparation of alkoxy phospholane oxides and sulphides
    8.
    发明授权
    Preparation of alkoxy phospholane oxides and sulphides 失效
    烷氧基磷脂氧化物和硫化物的制备

    公开(公告)号:US4080385A

    公开(公告)日:1978-03-21

    申请号:US741577

    申请日:1976-11-12

    申请人: Hans-Dieter Block

    发明人: Hans-Dieter Block

    IPC分类号: C07F9/6568 C08G18/02 C07F9/53

    CPC分类号: C08G18/025 C07F9/65685

    摘要: A process for the production of an alkoxy phospholane oxide or sulphide of the formula ##STR1## in which R.sup.1 is an alkyl, alkoxy or aryl radical having up to 14 carbon atoms.R.sup.2, r.sup.3 and R.sup.4 each independently is a C.sub.1 to C.sub.4 alkyl radical, hydrogen, chlorine or bromine,R.sup.5 is an alkyl, alkenyl, alkynyl radical having from 1 to 14 carbon atoms, andX is oxygen or sulphur,Comprising reacting a phospholene oxide or sulphide of the formula ##STR2## with an alcohol of the formulaR.sup.5 -- O -- Hin the presence of an alkaline catalyst, such as sodium methylate. The products catalyze the conversion of isocyanates into carbodiimides with evolution of carbon dioxide.

    摘要翻译: 制备式“IMAGE”的烷氧基磷酰氧化物或硫化物的方法,其中R 1是具有至多14个碳原子的烷基,烷氧基或芳基。

    Method for producing silane
    9.
    发明授权
    Method for producing silane 失效
    硅烷的制造方法

    公开(公告)号:US06852301B2

    公开(公告)日:2005-02-08

    申请号:US10450207

    申请日:2001-11-21

    IPC分类号: C01B33/04 C01B33/18

    摘要: The invention relates to a method for producing silane (SiH4) by a) reacting metallurgical silicon with silicon tetrachloride (SiCl4) and hydrogen (H2), to form a crude gas stream containing trichlorosilane (SiHCl3) and silicon tetrachloride (SiCl4), b) removing impurities from the resulting crude gas stream by washing with condensed chlorosilanes, c) condensing and subsequently, separating the purified crude gas stream by distillation, d) returning the partial stream consisting essentially of SiCl4 to the reaction of metallurgical silicon with SiCl4 and H2, e) disproportionating the partial stream containing SiHCl3, to form SiCl4 and SiH4 and f) returning the SiH4 formed by disproportionation to the reaction of metallurgical silicon with SiCl4 and H2, the crude gas stream containing trichlorosilane and silicon tetrachloride being liberated from solids as far as possible by gas filtration before being washed with the condensed chlorosilanes. The washing process with the condensed chlorosilanes is carried out at a pressure of 25 to 40 bar and at a temperature of at least 150° C. in a single-stage distillation column and is carried out in such a way that 0.1 to 3 wt. % of the crude gas stream containing trichlorosilane and silicon tetrachloride is recovered in the form of a condensed liquid phase consisting essentially of SiCl4, this liquid phase then being removed from the SiCl4 circuit and expanded to a pressure of 1 bar outside said SiCl4 circuit and cooled to a temperature of 10 to 40° C., whereby dissolved impurities separate out and are then removed by filtration.

    摘要翻译: 本发明涉及一种通过以下步骤制备硅烷(SiH 4)的方法:a)使冶金硅与四氯化硅(SiCl 4)和氢(H 2)反应,形成含有三氯硅烷(SiHCl 3)和四氯化硅(SiCl 4)的粗气流,b) 通过用冷凝的氯硅烷洗涤从所得粗气流中除去杂质,c)冷凝并随后通过蒸馏分离纯化的粗气流,d)将基本上由SiCl 4组成的部分流返回到冶金硅与SiCl 4和H 2的反应中, e)歧化含SiHCl3的部分流,以形成SiCl4和SiH4,以及f)将通过歧化形成的SiH 4返回至冶金硅与SiCl4和H2的反应,将含有三氯硅烷和四氯化硅的粗气流从固体释放至 在用冷凝的氯硅烷洗涤之前可能通过气体过滤。 冷凝氯硅烷的洗涤过程在单级蒸馏塔中在25至40巴的压力和至少150℃的温度下进行,并以0.1至3重量% 含有三氯硅烷和四氯化硅的粗气流的%以基本上由SiCl 4组成的冷凝液相的形式回收,然后将该液相从SiCl4回路除去并在SiCl 4回路外扩张至1巴的压力,并冷却 温度为10〜40℃,由此分离出溶解的杂质,然后通过过滤除去。