Preparation of addition salts of cysteamine with acids
    1.
    发明授权
    Preparation of addition salts of cysteamine with acids 失效
    半胱胺与酸的加成盐的制备

    公开(公告)号:US5017725A

    公开(公告)日:1991-05-21

    申请号:US471080

    申请日:1990-01-30

    CPC分类号: C07C319/02 C07C323/25

    摘要: Addition salts of cysteamine with acids are prepared by reacting aziridine with an organic sulfur compound of oxidation state -2 and with a ketone and then subjecting the thiazolidine formed as an intermediate to acid hydrolysis, by a process in which aziridine and the ketone are reacted with ammonium hydrogen sulfide or with a metal hydrogen sulfide with the addition of a moderately strong or strong acid at from -10.degree. to +100.degree. C. and a pH which is greater than or equal to 8.5 is maintained.

    摘要翻译: 半胱胺与酸的加成盐通过使氮丙啶与氧化态-2的有机硫化合物和酮反应,然后使形成的中间体的噻唑烷进行酸水解,通过其中将氮丙啶和酮与 硫化氢铵或与金属硫化氢反应,加入中等强度或强酸的温度为-10至+ 100℃,并保持大于或等于8.5的pH值。

    Modified melamine-formaldehyde resins
    3.
    发明授权
    Modified melamine-formaldehyde resins 失效
    改性三聚氰胺 - 甲醛树脂

    公开(公告)号:US5322915A

    公开(公告)日:1994-06-21

    申请号:US910382

    申请日:1992-07-08

    IPC分类号: C08G14/09 C08G14/06 C08G14/10

    CPC分类号: C08G14/10

    摘要: A condensation polymer, obtainable by condensation of a mixture containing, as chief components,(A) from 90 to 99.9% molar of a mixture substantially consisting of(a) from 30 to 99% molar of melamine and(b) from 1 to 70% molar of a substituted melamine of the general formula I ##STR1## in which X, X', and X" are selected from the group consisting of --NH.sub.2, --NHR, and --NRR', and only one or two of X, X', and X" denote(s) --NH.sub.2, and R and R' are selected from the group consisting of hydroxy-C.sub.2 -C.sub.10 -alkyl, hydroxy-C.sub.2 -C.sub.4 -alkyl-(oxa-C.sub.2 -C.sub.4 -alkyl).sub.n, where n is an integer from 1 to 5, and amino-C.sub.2 -C.sub.12 -alkyl, or mixtures of melamines I, and(B) from 0.1 to 10% molar, based on (A) and (B), of unsubstituted phenols or phenols substituted by radicals selected from the group consisting of C.sub.1 -C.sub.9 -alkyl and hydroxy, or of C.sub.1 -C.sub.4 -alkanes substituted by two or three phenol groups, di(hydroxyphenyl)sulfones, or mixtures of said phenols,with formaldehyde or formaldehyde-liberating compounds, the molar ratio of melamine to formaldehyde ranging from 1:1.15 to 1:4.5.

    摘要翻译: 缩合聚合物,其可通过以主要组分(A)为90至99.9%摩尔的混合物缩合获得,该混合物基本上由(a)30至99%摩尔的三聚氰胺和(b)1至70 %摩尔的通式I的取代三聚氰胺(I)其中X,X'和X“选自-NH 2,-NHR和-NRR',并且只有一个或 X,X'和X“中的两个表示(s)-NH 2,R和R'选自羟基-C 2 -C 10 - 烷基,羟基-C 2 - C 4 - 烷基 - (氧杂-C2 -C 1-4 - 烷基)n,其中n为1至5的整数,氨基-C 2 -C 12 - 烷基或三聚氰胺I和(B)的混合物为0.1至10摩尔%,基于(A)和( B)的未取代的酚或被选自C 1 -C 9 - 烷基和羟基的基团或被两个或三个苯酚基取代的C 1 -C 4烷烃取代的酚,二(羟基苯基)砜或所述 酚,与甲醛或甲醛释放化合物,摩尔 三聚氰胺与甲醛的比例范围为1:1.15至1:4.5。

    Preparation of N-hydroxypyrazoles
    4.
    发明授权
    Preparation of N-hydroxypyrazoles 失效
    N-羟基吡唑的制备

    公开(公告)号:US4945166A

    公开(公告)日:1990-07-31

    申请号:US367053

    申请日:1989-06-16

    摘要: N-hydroxypyrazoles of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 may be identical or different and are each hydrogen, alkyl, halogen or aryl, or R.sup.1 and R.sup.2 or R.sup.2 and R.sup.3 together with the carbon atoms carrying these radicals form an aromatic or nonaromatic ring of 5 or 6 carbon atoms are prepared by a process in which(A) a pyrazole of the general formula II ##STR2## is converted in a conventional manner with an alkali metal hydroxide, alkali metal hydride or alkali metal carbonate into one of its metal salts of the general formula III ##STR3## where ME.sym. is a cation of an alkali metal, and (B) the resulting metal salt of the general formula III is reacted with dibenzoyl peroxide in an inert organic solvent or in a 2-phase system, in the presence or absence of a phase transfer catalyst.

    摘要翻译: 通式I的N-羟基吡唑(I)其中R 1,R 2和R 3可以相同或不同,各自为氢,烷基,卤素或芳基,或R 1和R 2或R 2和R 3与携带的碳原子一起 这些基团形成5或6个碳原子的芳族或非芳族环是通过以下方法制备的:其中(A)通式II的吡唑(II)以常规方式用碱金属氢氧化物,碱 金属氢化物或碱金属碳酸盐转化成其通式III(III)的金属盐之一,其中ME(+)是碱金属的阳离子,和(B)所得到的通式III的金属盐是 在相转移催化剂存在或不存在下,在惰性有机溶剂或2-相体系中与二苯甲酰基过氧化物反应。

    Desizing cotton and cotton-containing fabrics
    9.
    发明授权
    Desizing cotton and cotton-containing fabrics 失效
    脱棉棉和含棉面料

    公开(公告)号:US4654043A

    公开(公告)日:1987-03-31

    申请号:US690522

    申请日:1985-01-11

    IPC分类号: D06L1/14 D06M13/34 A01N3/00

    CPC分类号: D06L1/14

    摘要: Cotton and cotton-containing fabrics are desized in strongly alkaline aqueous solution with an alkali metal hypochlorite by a process in which from 0.5 to 8.0 g/l of a tertiary hydroxyalkylamine which is soluble in aqueous alkaline solution, of an oxyethylated and/or oxypropylated ethylenediamine, of an oxyethylated polyethyleneimine, of malonic acid, of cyanuric acid, of a cyanuric acid derivative, of a urea derivative, of cyanoguanidine, of oxazolidone, of pyrrolidone, of N-methylpyrrolidone, of N-methylimidazole or of a mixture of these is added to the aqueous bath, as an activator for the hypochlorite. Activators for hypochlorite are used in the desizing of cotton and cotton-containing fabrics in strongly alkaline aqueous solutions.

    摘要翻译: 棉和含棉织物在碱金属次氯酸盐的强碱性水溶液中通过其中可溶于碱性水溶液的0.5-8.0g / l的三羟基烷基胺,氧乙基化和/或氧丙基化的乙二胺 的丙二酸,氰尿酸,氰尿酸衍生物,脲衍生物,氰基胍,恶唑烷酮,吡咯烷酮,N-甲基吡咯烷酮,N-甲基咪唑或它们的混合物的氧乙基化聚乙烯亚胺, 加入到水浴中,作为次氯酸盐的活化剂。 用于次氯酸盐的活化剂用于在强碱性水溶液中脱棉和含棉织物。

    Iodine-containing block copolymers of 1,4-butylene oxide and ethylene
oxide
    10.
    发明授权
    Iodine-containing block copolymers of 1,4-butylene oxide and ethylene oxide 失效
    含碘的1,4-环氧丁烷和环氧乙烷的嵌段共聚物

    公开(公告)号:US4200733A

    公开(公告)日:1980-04-29

    申请号:US25174

    申请日:1979-03-29

    摘要: Iodine-containing block copolymers which contain from 5 to 25% by weight of bonded iodine, and which are based on iodine-free compounds of the formula IR(AB).sub.z Iwhereif z=1, R is hydrogen or a C.sub.1 -C.sub.18 -aliphatic hydrocarbon radical,if z.noteq.1, R is a z-valent aliphatic hydrocarbon radical of 2 to 8 carbon atoms, which may or may not carry up to z ethylene oxide units,z is from 1 to 6,A is a polymer or copolymer block of from 4 to 100 1,4-butylene oxide units and from 0 to 25 ethylene oxide units andB is a polymer or copolymer block of from 0 to 50 1,4-butylene oxide units and from 1 to 100 ethylene oxide units, the proportion of 1,4-butylene oxide being >50 mole % in A and

    摘要翻译: 含有5〜25重量%的结合碘的含碘嵌段共聚物,其基于式IR(AB)zI的无碘化合物,其中如果z = 1,R为氢或C1-C18- 脂族烃基,如果z NOTEQUAL 1,R是2至8个碳原子的z价脂族烃基,其可以或可以不携带至z环氧乙烷单元,z为1-6,A为聚合物或 共聚物嵌段为4至100个1,4-环氧丁烷单元和0至25个环氧乙烷单元,B为0至50个1,4-环氧丁烷单元和1至100个环氧乙烷单元的聚合物或共聚物嵌段 ,A环中1,4-环氧丁烷的比例> 50摩尔%,B中的<50摩尔%