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253 条记录 (耗时 0.039 秒)

    Biodegradable barrier films of ionomer polymer
    35.
    发明授权
    Biodegradable barrier films of ionomer polymer 失效
    离聚物聚合物的可生物降解阻隔膜

    公开(公告)号：US4997470A

    公开(公告)日：1991-03-05

    申请号：US380248

    申请日：1989-07-17

    申请人： Warren A. Thaler ,  Pacifico V. Manalastas ,  Evelyn N. Drake ,  Robert D. Lundberg

    发明人： Warren A. Thaler ,  Pacifico V. Manalastas ,  Evelyn N. Drake ,  Robert D. Lundberg

    IPC分类号： A01N25/10 ,  C08F8/30 ,  C08G81/02 ,  C09D123/32

    CPC分类号： C08G81/024 ,  A01N25/10 ,  C08F8/44 ,  C09D123/32 ,  C08F2800/20

    摘要： An encapsulated water soluble fertilizer which comprises a polymeric film of about 2 to about 100 micrometers coated on a surface of said fertilizer, said polymeric film comprising a sulfonated polymer having about 10 to about 200 meq of sulfonate groups per 100 grams of said sulfonated polymer, said sulfonate groups being neutralized with a polycaprolactone polymer being characterized by the formula ##STR1## wherein R.sub.1 and R.sub.2 is an alkyl, cycloalkyl or aryl group; R.sub.3, R.sub.4 and R.sub.5 are a hydrogen or alkyl, cycloalkyl, or aryl groups; m equals 1 to 20 and n equals 1 to 500.

    摘要翻译： 一种包封的水溶性肥料，其包含涂覆在所述肥料表面上的约2至约100微米的聚合物膜，所述聚合物膜包含每100克所述磺化聚合物约10至约200毫克磺酸盐基团的磺化聚合物， 所述磺酸酯基团用聚己内酯聚合物中和，其特征在于下式：其中R 1和R 2是烷基，环烷基或芳基; R3，R4和R5是氢或烷基，环烷基或芳基; m等于1到20，n等于1到500。

    Interfacial viscosification of aqueous solutions utilizing interpolymer complex
    37.
    发明授权
    Interfacial viscosification of aqueous solutions utilizing interpolymer complex 失效
    使用互聚物复合物的水溶液的界面粘度

    公开(公告)号：US4942189A

    公开(公告)日：1990-07-17

    申请号：US387184

    申请日：1989-07-31

    申请人： Dennis G. Peiffer ,  Robert D. Lundberg ,  Ilan Duvdevani

    发明人： Dennis G. Peiffer ,  Robert D. Lundberg ,  Ilan Duvdevani

    IPC分类号： C08J3/00 ,  C08J3/07 ,  C08J3/09

    CPC分类号： C08J3/07 ,  C08J3/005 ,  C08J3/091 ,  Y10S524/924

    摘要： The present invention relates to a process for the viscosification of an aqueous liquid which includes the steps of forming a solvent system of an organic liquid or oil and a polar cosolvent, the polar cosolvent being less than about 15 weight percent of the solvent system, a viscosity of the solvent system being less than about 1,000 cps; forming an interpolymer complex of neutralized sulfonated polymer (water insoluble) and copolymer of styrene/vinylpyridine in the solvent system to form a solution, a concentration of the water insoluble interpolymer complex polymer in the solution being about 0.01 to about 0.5 weight percent, a viscosity of the solution being less than about 200 cps; the admixing or contacting said solution with about 5 to about 500 volume percent water, the water being immiscible with the organic liquid and the polar cosolvent and interpolymer complex transferring from the organic liquid to the water phase, thereby causing the water phase to gel (i.e., thicken). The large increase in viscosity of the aqueous phase is directly attributed to the formation of a large number of minute water-filled particles dispersed in the continuous aqueous phase.

    摘要翻译： 本发明涉及一种水性液体的增稠方法，其包括形成有机液体或油和极性助溶剂的溶剂体系的步骤，极性助溶剂小于溶剂体系的约15重量％， 溶剂体系的粘度小于约1,000cps; 在溶剂体系中形成中和磺化聚合物（水不溶性）和苯乙烯/乙烯基吡啶的共聚物的互聚物络合物以形成溶液，溶液中水不溶性互聚物络合物聚合物的浓度为约0.01至约0.5重量％，粘度 的溶液小于约200cps; 将所述溶液与约5至约500体积％的水混合或接触，所述水与有机液体和极性共溶剂和互聚物复合物不混溶，从有机液体转移到水相，从而使水相凝胶化（即 ， 加粗）。 水相的粘度大幅度上升直接归因于形成分散在连续水相中的大量微小水分散的颗粒。

    Drilling fluids based on hydrocarbon soluble polyampholytes
    40.
    依法登记的发明
    Drilling fluids based on hydrocarbon soluble polyampholytes 失效
    基于烃溶性聚阴离子的钻井液

    公开(公告)号：USH495H

    公开(公告)日：1988-07-05

    申请号：US72300

    申请日：1987-07-13

    申请人： Dennis G. Peiffer ,  Robert D. Lundberg ,  Lawrence P. Sedillo ,  John C. Newlove

    发明人： Dennis G. Peiffer ,  Robert D. Lundberg ,  Lawrence P. Sedillo ,  John C. Newlove

    IPC分类号： C09K8/32

    CPC分类号： C09K8/32

    摘要： An oil-based drilling mud which comprises:(a) a hydrocarbon liquid substantially immiscible in water;(b) about 1 to about 100 parts by weight of water per 100 parts of the hydrocarbon liquid;(c) about 2 to about 50 lb/bbl. of at least one emulsifier;(d) about 0.5 to about 5 lb/bbl. of a wetting agent;(e) about 50 to about 750 lb/bbl. of a weighting agent;(f) about 0.1 to about 25 lb/bbl. of a water insoluble, oil soluble terpolymer, said terpolymer having the formula: ##STR1## wherein R.sub.1 and R.sub.3 are selected from the group consisting of hydrogen and a methyl group, wherein R.sub.2 is selected from the group consisting of C.sub.3 H.sub.5, C.sub.6 H.sub.4 --CH.sub.3, C.sub.6 H.sub.4 (CH.sub.3).sub.2 and CnH.sub.2n+1, wherein n=1 to 30 and R.sub.4 is selected from the group consisting of C.sub.5 H.sub.4 N, CnH.sub.2n NH.sub.3 and CnH.sub.2n N(CH.sub.3).sub.3, wherein n=1 to 30 and x is about 40 to about 98 mole percent, y is about 1 to about 50 mole percent, and z is about 1 to about 50 mole percent, wherein y and z are less than 60 mole percent, and M is an amine or a metal cation selected from the group consisting of aluminum, iron, lead, Groups IA, IIA, IVA, VIA, VIIA, VIIIA, IB and IIB of the Periodic Table of Elements.