公开(公告)号：US20070161516A1

公开(公告)日：2007-07-12

申请号：US11615475

申请日：2006-12-22

Applicant: Stefania Vecchi ,  Christina Demarchi ,  Laura Vigano ,  Giuseppe Bassi ,  Dario Chiavacci

Inventor： Stefania Vecchi ,  Christina Demarchi ,  Laura Vigano ,  Giuseppe Bassi ,  Dario Chiavacci

IPC: C09K8/00 ,  E21B43/00

CPC classification number: C08F251/02 ,  C08L51/02 ,  C09K8/10 ,  C09K8/206 ,  C09K8/514 ,  C08L2666/02

Abstract: An additive for reducing filtrate loss may be obtained by the reaction of carboxymethyl cellulose with an ethylenically unsaturated monomer containing a sulfonic group in the form of acid or salt thereof. The product of the reaction useful in water-based drilling muds which are employed in the drilling and/or completion of oil wells. The additive exhibits its characteristic function of filtrate reduction even at high temperature and pressure conditions; and, moreover, it is suitable for application in the presence of salts and solids.

Abstract translation: 用于减少滤液损失的添加剂可以通过羧甲基纤维素与含有酸或其盐形式的磺酸基的烯属不饱和单体的反应来获得。 该反应的产物可用于在钻井和/或完井油井中使用的水基钻井泥浆中。 该添加剂即使在高温和高压条件下也具有滤液还原的特征功能; 此外，它适用于在盐和固体存在下的应用。

公开(公告)号：US4589149A

公开(公告)日：1986-05-20

申请号：US702497

申请日：1985-02-19

Applicant: Giuseppe Bassi

Inventor： Giuseppe Bassi

IPC: A47K13/14 ,  A47K13/16

CPC classification number: A47K13/16

Abstract: A hygienic covering for the bearing surface of an annular seat of a water-closet, consisting of a layer of paper, plastified paper or the like in the form of a cylindrical ring including two annular resilient edges provided with elastic bands, for providing a covering, can be positioned on said surface of seat, in order to be engaged with one resilient edge with the elastic band at the outer edge and to be kept substantially tensioned above the surface of the seat by means of the other resilient edge with the elastic band.

Abstract translation: 一种用于水厕环形座的支承表面的卫生罩，由一层圆形环形式的纸，塑化纸或类似物构成，包括设置有弹性带的两个环形弹性边缘，用于提供覆盖物 可以位于座椅的所述表面上，以便与一个弹性边缘接合，弹性带在外边缘处并且通过具有弹性带的另一个弹性边缘基本上被张紧在座椅的表面上方 。

公开(公告)号：US20110038825A1

公开(公告)日：2011-02-17

申请号：US12989369

申请日：2009-04-23

Applicant: Vito Alanzo ,  Gabriele Costa ,  Dario Conti ,  Giuseppe Bassi

Inventor： Vito Alanzo ,  Gabriele Costa ,  Dario Conti ,  Giuseppe Bassi

IPC: A61K8/87

CPC classification number: C08G18/0814 ,  A61K8/87 ,  A61Q19/00 ,  C08G18/12 ,  C08G18/3275 ,  C08G18/4238 ,  C08G18/4854 ,  C08G18/6655 ,  C08G18/6688 ,  C08G18/722 ,  D21H19/24 ,  C08G18/305

Abstract: Stable aqueous dispersions of film-forming cationic polyurethanes are prepared by extending with water or amines a cationic prepolymer obtained from aliphatic diisocyanates, aliphatic tertiary amines having two hydroxyl groups that react with —NCO groups, linear polyols and methanesulfonic acid.

Abstract translation: 成膜阳离子聚氨酯的稳定的水性分散体是通过用水或胺延伸，由从脂族二异氰酸酯获得的阳离子预聚物，具有与-NCO基团反应的两个羟基的脂族叔胺，线性多元醇和甲磺酸来制备的。