Aqueous emulsions of polyvinyl esters containing hydroxypropylguar
    72.
    发明申请
    Aqueous emulsions of polyvinyl esters containing hydroxypropylguar 审中-公开
    含有羟丙基瓜尔胶的聚乙烯酯水乳液

    公开(公告)号:US20060258799A1

    公开(公告)日:2006-11-16

    申请号:US10543068

    申请日:2004-01-21

    IPC分类号: C08L31/02

    CPC分类号: C08F18/04

    摘要: The present invention refers to a protective colloid for the aqueous emulsion polymerisation of vinyl esters consisting of hydroxypropylguar having a degree of molar substitution from 1 to 4, and a 2% viscosity ranging from 1,000 to 25,000 mPa*s; the aqueous emulsions of polyvinyl esters containing such protective colloid are characterised by the fact the they exhibit improved mechanical stability, high stability to freeze and heath, and were found to be particularly useful for the preparation of paints having marked resistance to water.

    摘要翻译: 本发明涉及由摩尔取代度为1至4,2%粘度范围为1,000至25,000mPa * s的由羟丙基瓜尔基组成的乙烯基酯的水乳液聚合的保护胶体; 含有这种保护胶体的聚乙烯酯的水性乳液的特征在于它们表现出改善的机械稳定性,对冻结和保湿的高稳定性,并且被发现特别可用于制备具有显着抗水性的油漆。

    Compositions for positive heat sensitive lithographic pringting plates
    74.
    发明申请
    Compositions for positive heat sensitive lithographic pringting plates 失效
    正热敏平版印刷板的组成

    公开(公告)号:US20050181298A1

    公开(公告)日:2005-08-18

    申请号:US10508277

    申请日:2003-03-18

    摘要: The invention relates to a composition for positive heat sensitive CTP lithographic printing plates comprising a phenolic resin and an IR absorber characterized by the fact that it contains from 1 to 30% w/w of an organic oxygenated phosphorous compound chosen from the group of general formula (I): wherein R1, R2, R3 are independently: C3-C12 linear or branched alkyl; phenyl or heteroaryl eventually substituted with R4, wherein R4 is halogen, C1-C12 linear or branched alkyl, C1-C12 linear or branched alkoxyl; OR5 wherein R5 is C3-C12 linear or branched alkyl, phenyl or heteroaryl eventually substituted with R4, wherein R4 is halogen, C1-C12 linear or branched alkyl, C1-C12 linear or branched alkoxyl.

    摘要翻译: 本发明涉及一种用于阳性热敏CTP平版印刷版的组合物,其包含酚醛树脂和IR吸收剂,其特征在于其含有1至30%(重量)的有机氧化磷化合物,其选自通式 (I)化合物:其中R 1,R 2,R 3,R 3独立地是C 3 -C 直链或支链烷基; 最后被R 4取代的苯基或杂芳基,其中R 4是卤素,C 1 -C 12直链或 支链烷基,C 1 -C 12直链或支链烷氧基; 或其中R 5是C 3 -C 12直链或支链烷基,苯基或杂芳基,最后被 R 4,其中R 4是卤素,C 1 -C 12直链或支链烷基,C C 1 -C 12直链或支链烷氧基。

    Process for the cleaning of oil and gas wellbores
    75.
    发明授权
    Process for the cleaning of oil and gas wellbores 失效
    油气井清洁工艺

    公开(公告)号:US06672388B2

    公开(公告)日:2004-01-06

    申请号:US09880592

    申请日:2001-06-13

    IPC分类号: E21B3700

    摘要: Disclosed is a process for cleaning wellbore walls, tubing or casings. The process is characterized by (a) preparing an aqueous surfactant composition containing from about 10% to 60% by weight of a mixture of surfactants, the mixture comprising from 10% to 50% by weight of an anionic derivative of an alkylpolyglycoside, from 35% to 80% by weight of an alkylpolyglycoside and from 5% to 25% by weight of an anionic derivative of a fatty alcohol, their balance being 100%; (b) diluting the aqueous surfactant composition in water to form a diluted aqueous surfactant composition and injecting the diluted aqueous surfactant composition into a wellbore containing drilling mud, oily residues or other undesirable deposits; (c) extracting from the wellbore the diluted aqueous surfactant composition containing the drilling mud, oily residues or other undesirable deposits; (d) removing the drilling mud, oily residues or other undesirable deposits from the diluted aqueous surfactant composition; and (e) optionally, re-using the diluted aqueous surfactant composition.

    摘要翻译: 公开了一种清洁井筒壁,管道或壳体的方法。 该方法的特征在于(a)制备含水表面活性剂组合物,其含有约10重量%至60重量%的表面活性剂混合物,该混合物包含10重量%至50重量%的烷基多糖苷阴离子衍生物,35 %至80重量%的烷基多糖苷和5重量%至25重量%的脂肪醇的阴离子衍生物,其余量为100%; (b)将水性表面活性剂组合物稀释在水中以形成稀释的水性表面活性剂组合物,并将稀释的含水表面活性剂组合物注入含有钻井泥浆,油性残余物或其它不期望的沉积物的井筒中; (c)从井筒中提取含有钻井泥浆,油性残渣或其它不期望的沉积物的稀释的含水表面活性剂组合物; (d)从稀释的水性表面活性剂组合物中去除钻井泥浆,油性残渣或其它不需要的沉积物; 和(e)任选地,再次使用稀释的水性表面活性剂组合物。