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    Polyamide composition
    2.
    发明授权
    Polyamide composition 有权

    公开(公告)号：US09856375B2

    公开(公告)日：2018-01-02

    申请号：US15036724

    申请日：2014-11-07

    Applicant: RHODIA OPERATIONS

    Inventor： Stéphane Jeol ,  Thierry Badel ,  Jean-François Thierry

    IPC: C08L77/06 ,  B29C49/00 ,  B29C45/00 ,  B29B9/10 ,  C08G69/26 ,  B29K77/00 ,  B29K105/16

    CPC classification number: C08L77/06 ,  B29B9/10 ,  B29C45/0001 ,  B29C49/0005 ,  B29C2045/0091 ,  B29K2077/00 ,  B29K2105/16 ,  C08G69/26 ,  C08L2201/08 ,  C08L2203/20 ,  C08L2205/02

    Abstract: The invention pertains to A polyannide composition [composition (C)] comprising: —from 20 to 95% wt of at least one polyamide [polyamide (A)]; —from 1 to 30% wt of at least one branched polyamide different from polyamide (A), said branched polyamide comprising recurring units derived from polycondensation of a mixture [mixture (B)] comprising: —at least one polyamine monomer comprising at least three amine functional groups selected from the group consisting of secondary amine group of formula —NH— and primary amine group of formula -MH2 [monomer (FN)], and—ε-caprolactam (or derivates thereof); said branched polyamide possessing a concentration of amine end groups (AEG) and a concentration of carboxylic end groups (CEG) such that the difference AEG−CEG is of at least 100 meq/kg [polyamide (B)]; and—from 0.01 to 3.5% wt of at least one thermal stabilizer [stabilizer (S)], —optionally, from 0 to 60% wt of at least one filler [filler (F)]; —optionally, from 0 to 20% wt of at least one impact modifying rubber [rubber (I)]; —optionally, from 0 to 20% wt of other conventional additives, with above % wt being referred to the total weight of composition (C).

    NOVEL AGENT FOR INHIBITING THE SWELLING OF CLAYS, COMPOSITIONS COMPRISING SAID AGENT AND METHODS IMPLEMENTING SAID AGENT
    4.
    发明申请
    NOVEL AGENT FOR INHIBITING THE SWELLING OF CLAYS, COMPOSITIONS COMPRISING SAID AGENT AND METHODS IMPLEMENTING SAID AGENT 有权
    抑制粘土破裂的新型代理，包含所述代理人的组合物和实施所述代理人的方法

    公开(公告)号：US20150041138A1

    公开(公告)日：2015-02-12

    申请号：US14377363

    申请日：2013-02-12

    Applicant: RHODIA OPERATIONS

    Inventor： Thierry Badel ,  Arnaud Cadix

    IPC: C09K8/68 ,  E21B7/00 ,  E21B43/26 ,  C09K8/28

    CPC classification number: C09K8/68 ,  C09K8/035 ,  C09K8/28 ,  C09K8/607 ,  C09K2208/12 ,  E21B7/00 ,  E21B43/26

    Abstract: The present invention concerns the use of a novel additive as an agent for inhibiting the swelling of clays, in particular in the field of boreholes. More specifically, the present invention concerns the use of a specific diamine and diacid salt as an agent for inhibiting the swelling of clays in an aqueous medium, and a drilling or hydraulic fracturing fluid composition comprising the salt according to the invention and methods for drilling or hydraulic fracturing implementing said salt.

    Abstract translation: 本发明涉及使用新型添加剂作为抑制粘土膨胀的试剂，特别是在钻孔领域。 更具体地说，本发明涉及特定的二胺和二酸盐作为抑制水性介质中粘土膨胀的试剂的用途，以及包含根据本发明的盐的钻井或水力压裂液组合物以及用于钻井或 水力压裂实施所述盐。

    Polyamide composition
    5.
    发明授权
    Polyamide composition 有权

    公开(公告)号：US09982133B2

    公开(公告)日：2018-05-29

    申请号：US14906325

    申请日：2014-07-22

    Applicant: RHODIA OPERATIONS

    Inventor： Stéphane Jeol ,  Thierry Badel

    IPC: C08K5/35 ,  C08L77/12 ,  C08L77/00 ,  C08K5/053 ,  C08K7/14 ,  C08L51/06

    CPC classification number: C08L77/12 ,  C08K5/053 ,  C08K7/14 ,  C08L51/06 ,  C08L77/00 ,  C08L2201/08 ,  C08L2205/06

    Abstract: The invention pertains to a filled polyamide composition [composition (C)] comprising: —from 35 to 80% wt of at least one polyhydric alcohol-modified polyamide, comprising an amount of polyhydric alcohol (PHA, herein after) residues chemically bonded at least to a part of the polyamide [polyamide (A)] of at least 0.1% wt (based on the total weight of polyamide (A)); —from 10 to 65% wt of at least one filler [filler (F)]; —from 1 to 10% wt of at least one impact modifying rubber [rubber (I)]; and —from 0.01 to 3% wt of at least one copper-containing stabilizer, with above % wt being referred to the total weight of composition (C).

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