Thermoreversible thickener
    23.
    发明授权
    Thermoreversible thickener 失效
    热可逆增稠剂

    公开(公告)号:US5658981A

    公开(公告)日:1997-08-19

    申请号:US590875

    申请日:1996-01-24

    申请人: Tatsuya Ohsumi

    发明人: Tatsuya Ohsumi

    CPC分类号: C08F220/36 C08F20/36

    摘要: A thermoreversible thickener comprising a water-soluble copolymer containing as constituent monomer at least 50% by weight of a vinyl carboxylic ester of a cylic amine or a non-cyclic amine with at least 5 carbons with an alkylene oxide added thereto. The thickener, with a transition temperature which can be easily controlled according to the purpose of application such as coating, rolling oil, adhesives or inks, has a characteristic such that heating the aqueous solution thereof up to a temperature above the transition temperature causes rapid thickening of the solution.

    摘要翻译: 一种热可逆增稠剂,其包含水溶性共聚物,其含有至少50重量%的至少50重量%的环状胺或具有至少5个碳的非环状胺与其中加入了烯化氧的组成单体。 可以根据涂布,轧制油,粘合剂或油墨等应用目的易于控制的过渡温度的增稠剂具有将其水溶液加热到高于转变温度的温度的特征,导致快速增稠 的解决方案。

    Alkenyl ether-siloxane compositions which can be crosslinked by free
radicals
    25.
    发明授权
    Alkenyl ether-siloxane compositions which can be crosslinked by free radicals 失效
    可以通过自由基交联的烯基醚 - 硅氧烷组合物

    公开(公告)号:US5621057A

    公开(公告)日:1997-04-15

    申请号:US455489

    申请日:1995-05-31

    CPC分类号: C08F283/124

    摘要: Alkenyl ether-siloxane compositions comprising(A) an oligomeric or polymeric organosilicon compound having on average more than one alkenyloxy group of the formulaR.sup.2 --CH.dbd.CH--O-- (VI)(B) a monomeric maleic and/or fumaric acid compound of the formula ##STR1## in which R.sup.2 is a hydrogen atom or the methyl radical,R.sup.3 is identical or different and is a hydrogen atom, a hydrocarbon radical having 1 to 16 carbon atoms, which can be interrupted by oxygen, sulfur or oxygen- or silicon-containing units, a substituted hydrocarbon radical having 1 to 6 carbon atoms, a silyl radical or a siloxanyl radical,R.sup.4 is identical or different and is a hydrogen atom, chlorine, bromine, fluorine or an optionally substituted alkyl radical andZ is an oxygen atom or a radical --NR.sup.5 --, where R.sup.5 has one of the meanings given for R.sup.3,optionally(C) initiators which form free radicals and optionally(D) inhibitors for regulating the pot life.

    摘要翻译: 烯基醚 - 硅氧烷组合物,其包含(A)具有平均多于一个式R 2 -CH = CH-O-(VI)的烯氧基的低聚或聚合有机硅化合物(B)(B)单体马来酸和/或富马酸化合物 该式为氢原子或甲基,R3相同或不同,为氢原子,可被氧,硫或含氧或含硅单元中断的碳原子数为1〜16的烃基, 具有1至6个碳原子的取代烃基,甲硅烷基或硅氧烷基,R4相同或不同,为氢原子,氯,溴,氟或任选取代的烷基,Z为氧原子或基团 - NR5-,其中R5具有R3给出的含义之一,任选的(C)引发剂,其形成自由基和任选的(D)抑制剂以调节适用期。

    Decarbonylation of N-vinylformamide copolymers
    27.
    发明授权
    Decarbonylation of N-vinylformamide copolymers 失效
    N-乙烯基甲酰胺共聚物的脱羰基

    公开(公告)号:US5436299A

    公开(公告)日:1995-07-25

    申请号:US359487

    申请日:1994-12-20

    CPC分类号: C08F8/00

    摘要: Salt-free vinylamine copolymers are formed by heating the corresponding N-vinylformamide copolymer to a temperature from about 75.degree. to 225.degree. C. in non-aqueous media in the presence of a catalyst comprising a Group VIII metal.

    摘要翻译: 通过在含有VIII族金属的催化剂存在下,在非水介质中将相应的N-乙烯基甲酰胺共聚物加热至约75至225℃的温度而形成无盐的乙烯基胺共聚物。

    Hydrogels of heterocyclic polymer, method of obtaining them, and their
use as insoluble pH-regulating pellets
    30.
    发明授权
    Hydrogels of heterocyclic polymer, method of obtaining them, and their use as insoluble pH-regulating pellets 失效
    杂环聚合物的水凝胶,获得它们的方法,以及它们作为不溶性pH调节颗粒的用途

    公开(公告)号:US5393853A

    公开(公告)日:1995-02-28

    申请号:US30308

    申请日:1993-03-29

    CPC分类号: C08F226/06

    摘要: Hydrogels presented in the form of pellets which are capable of regulating, without dissolving, any pH of an aqueous solution so as to convert it to a pH of 7. These pellets can be removed from the solution at any time without this modifying the pH, and once washed, can be used again. The velocity of buffering depends on the initial pH and can be controlled by modifying the mass and the composition of the pellets. They are obtained by copolymerization of a vinyl-heterocyclic comonomer and a divinyl comonomer in an aqueous solution at a temperature of close to 60.degree. C., in an inert atmosphere. By adjusting the proportion of crosslinking agent and the concentrations of comonomers, the crosslinking of the hydrogel is regulated in accordance with the intended use of the product.

    摘要翻译: PCT No.PCT / ES92 / 00057 Sec。 371日期1993年3月29日 102(e)1993年3月29日PCT PCT 1992年7月28日PCT公布。 出版物WO93 / 03077 日期:1993年2月18日。以粒料形式出现的水凝胶,其能够调节,而不溶解任何pH值的水溶液,以将其转化为pH7。这些颗粒可以任何方式从溶液中除去 时间没有这个改变pH值,一旦洗涤,可以再次使用。 缓冲速度取决于初始pH值,并且可以通过改变颗粒的质量和组成来控制。 它们通过乙烯基 - 杂环共聚单体和二乙烯基共聚单体在接近于60℃的温度下在惰性气氛中在水溶液中共聚获得。 通过调节交联剂的比例和共聚单体的浓度,水凝胶的交联根据产品的预期用途进行调节。