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    Set retarders for foamed cements
    2.
    发明授权
    Set retarders for foamed cements 失效

    公开(公告)号：US06558461B2

    公开(公告)日：2003-05-06

    申请号：US09990733

    申请日：2001-11-21

    Applicant: Stuart E. Lebo, Jr. ,  Shane L. Resch

    Inventor： Stuart E. Lebo, Jr. ,  Shane L. Resch

    IPC: C04B2418

    CPC classification number: C04B24/24 ,  C04B24/18 ,  C04B28/02 ,  C09K8/46 ,  C09K8/473 ,  C04B24/124 ,  C04B24/16 ,  C04B38/10 ,  C04B24/12 ,  C04B2103/22

    Abstract: An improved non-dispersing set retarder additive for foamed cements, cement compositions containing the additive, and methods of cementing in a subterranean zone penetrated by a well bore are provided. The set retarder additive includes a blend of a sulfonated lignin, preferably a lignosulfonate, with an alkali lignin, preferably a kraft lignin, having an organic sulfur content of 0-3.5% by weight in a ratio of about 6:4 to 8:2. The methods are basically comprised of the steps of preparing a foamed cement composition comprised of hydraulic cement, a non-dispersing set retarder, sufficient water to form a slurry, sufficient gas to foam the slurry and a foaming and foam stabilizing surfactant present in an amount sufficient to facilitate the formation of the foam and stabilize the foamed cement composition.

    Method for microencapsulation of agriculturally active substances
    3.
    发明授权
    Method for microencapsulation of agriculturally active substances 失效
    农药活性物质微囊化方法

    公开(公告)号：US5552149A

    公开(公告)日：1996-09-03

    申请号：US133896

    申请日：1993-10-12

    Applicant: Stuart E. Lebo, Jr. ,  William J. Detroit

    Inventor： Stuart E. Lebo, Jr. ,  William J. Detroit

    IPC: A01N25/28 ,  A01N25/34 ,  B01J13/10 ,  B01J13/20

    CPC classification number: A01N25/28

    Abstract: A method for microencapsulating agriculturally active substances such as pesticides to provide improved resistance to environmental degradation, especially ultra-violet light. The method employs as the UV protectant lignosulfonates, such as sulfite lignin or sulfonated lignin, or alternately sulfonated lignite, sulfonated tannins, napthalene sulfonates or other related compounds in combination with a protein such as a high bloom gelatin to form a capsule wall. The capsule wall formed by the interaction of these components is durable and has an ultra-violet protectant as an integral part of its structure.

    Abstract translation: 用于微囊化农药活性物质如农药的方法以提供改善的对环境退化的抵抗力，特别是紫外光。 该方法采用UV保护剂木质素磺酸盐，如亚硫酸盐木质素或磺化木质素，或交替磺化褐煤，磺化单宁，萘磺酸盐或其它相关化合物与蛋白质如高华明胶组合形成胶囊壁。 由这些组分的相互作用形成的胶囊壁是耐用的，并且具有作为其结构的组成部分的紫外线保护剂。

    Production of oxidized humic acids by an oxygen-alkali process
    4.
    发明授权
    Production of oxidized humic acids by an oxygen-alkali process 失效
    通过氧 - 碱法生产氧化腐殖酸

    公开(公告)号：US5688999A

    公开(公告)日：1997-11-18

    申请号：US592678

    申请日：1996-01-26

    Applicant: Stuart E. Lebo, Jr. ,  Kevin R. Wirtz ,  Stephen L. Dickman

    Inventor： Stuart E. Lebo, Jr. ,  Kevin R. Wirtz ,  Stephen L. Dickman

    IPC: C08H99/00 ,  C07C65/01

    CPC classification number: C08H99/00

    Abstract: A method is disclosed for the production of oxidized humic acids. The process of the invention comprises reacting humic acid bearing ores with oxygen under alkaline conditions at a temperature between 100.degree. C. and 200.degree. C. for at least 1/2 hour, but usually for 1-2 hours, to produce oxidized humic acids which are soluble at pH as low as 2.9 and which are formed in yields of at least 70%. The oxidized humic acids produced according to the process of the invention are also superior viscosity reducers.

    Abstract translation: 公开了用于生产氧化腐殖酸的方法。 本发明的方法包括在碱性条件下在100℃至200℃的温度下使含腐殖酸的矿石与氧反应至少+ E，fra 1/2 + EE小时，但通常为1-2小时 ，以产生在低至2.9的pH下可溶的氧化腐殖酸，其产率至少为70％。 根据本发明方法生产的氧化腐殖酸也是优异的降粘剂。

    Method for producing improved biological pesticides
    5.
    发明授权
    Method for producing improved biological pesticides 失效
    生物农药改良方法

    公开(公告)号：US5529772A

    公开(公告)日：1996-06-25

    申请号：US257658

    申请日：1994-06-09

    Applicant: Stuart E. Lebo, Jr.

    Inventor： Stuart E. Lebo, Jr.

    IPC: A01N25/26 ,  A01N61/00 ,  A01N63/00 ,  A01N63/02 ,  A61K7/42 ,  A61K31/70 ,  C07G1/00 ,  C07K1/107

    CPC classification number: A01N63/00 ,  A01N63/02

    Abstract: A method for producing agriculturally active substances such as pesticides to provide improved resistance to environmental degradation, especially heat and ultra-violet light. The method involves the direct reaction of an active protein toxin of a biologically derived pesticide with a UV protectant to form a stable complex having the UV protectant as an integral part of its structure. The method employs lignosulfonates, such as sulfite lignin or sulfonated lignin, or alternately sulfonated lignite, sulfonated tannins, napthalene sulfonates or other related compounds as the UV protectant.

    Abstract translation: 一种生产农药等农药活性物质的方法，提高了对环境退化的抵抗力，特别是加热和紫外光。 该方法涉及生物衍生的农药的活性蛋白质毒素与UV保护剂的直接反应，以形成具有UV保护剂作为其结构的组成部分的稳定复合物。 该方法使用木质素磺酸盐，例如亚硫酸盐木质素或磺化木质素，或交替磺化褐煤，磺化单宁，萘磺酸盐或其它相关化合物作为UV保护剂。

    Set retarders for foamed cements
    6.
    发明授权
    Set retarders for foamed cements 失效
    设置发泡水泥的缓凝剂

    公开(公告)号：US06372037B1

    公开(公告)日：2002-04-16

    申请号：US09569422

    申请日：2000-05-12

    Applicant: Stuart E. Lebo, Jr. ,  Shane L. Resch

    Inventor： Stuart E. Lebo, Jr. ,  Shane L. Resch

    IPC: C04B2418

    CPC classification number: C04B24/24 ,  C04B24/18 ,  C04B28/02 ,  C09K8/46 ,  C09K8/473 ,  C04B24/124 ,  C04B24/16 ,  C04B38/10 ,  C04B24/12 ,  C04B2103/22

    Abstract: An improved non-dispersing set retarder additive for foamed cements, cement compositions containing the additive, and methods of cementing in a subterranean zone penetrated by a well bore are provided. The set retarder additive includes a blend of a sulfonated lignin, preferably a lignosulfonate, with an alkali lignin, preferably a kraft lignin, having an organic sulfur content of 0-3.5% by weight in a ratio of about 6:4 to 8:2. The methods are basically comprised of the steps of preparing a foamed cement composition comprised of hydraulic cement, a non-dispersing set retarder, sufficient water to form a slurry, sufficient gas to foam the slurry and a foaming and foam stabilizing surfactant present in an amount sufficient to facilitate the formation of the foam and stabilize the foamed cement composition.

    Abstract translation: 提供了用于发泡水泥的改进的非分散组合缓凝剂添加剂，含有添加剂的水泥组合物，以及在井眼穿透的地下区域中的固井方法。 所述缓凝剂添加剂包括磺化木质素，优选木质素磺酸盐与碱性木质素，优选硫酸盐木质素的混合物，所述碱性木质素，优选硫酸盐木质素，有机硫含量为0-3.5重量％，比例为约6:4至8:2 。 所述方法基本上包括以下步骤：制备由水硬性水泥，非分散组合缓凝剂，足够的水形成浆料，足够的气体以使浆料发泡的发泡水泥组合物和发泡和泡沫稳定表面活性剂 足以促进泡沫的形成并稳定泡沫水泥组合物。

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