公开(公告)号：US20170239844A1

公开(公告)日：2017-08-24

申请号：US15589498

申请日：2017-05-08

Applicant: RHODIA OPERATIONS ,  GALA INDUSTRIES, INC.

Inventor： JEAN-FRANCOIS ESTUR ,  ERIC ROCHE ,  MICHAEL ELOO ,  BERTHOLD DRUSCHEL

IPC: B29B9/06 ,  C09K8/80 ,  C08K3/34 ,  C08J3/12 ,  B29B9/14 ,  C08G69/26

CPC classification number: B29B9/065 ,  B29B9/12 ,  B29B9/14 ,  B29B2009/125 ,  B29K2077/00 ,  B29L2031/772 ,  C08G69/26 ,  C08J3/12 ,  C08J2377/06 ,  C08K3/34 ,  C09K8/80 ,  Y10T428/2982

Abstract: Certain polyamide beads or granules are useful as a sustaining material for underground natural or artificial cracks of the earth's crust essentially employed for the extraction of hydrocarbons such as crude oil or natural gas; such polyamide beads have a spherical or ellipsoidal shape and have a surface free of concave portions, advantageously having a uniform shape, and having a mean diameter lower than or equal to 1.7 mm and a porosity lower than 0.1 ml/g, and are produced using a particular cutting device/extruder.

公开(公告)号：US20190152096A1

公开(公告)日：2019-05-23

申请号：US16261734

申请日：2019-01-30

Applicant: RHODIA OPERATIONS ,  GALA INDUSTRIES, INC.

Inventor： JEAN-FRANCOIS ESTUR ,  ERIC ROCHE ,  MICHAEL ELOO ,  BERTHOLD DRUSCHEL

IPC: B29B9/06 ,  B29B9/12 ,  C08G69/26 ,  B29B9/14 ,  C08K3/34 ,  C09K8/80 ,  C08J3/12

Abstract: Certain polyamide beads or granules are useful as a sustaining material for underground natural or artificial cracks of the earth's crust essentially employed for the extraction of hydrocarbons such as crude oil or natural gas; such polyamide beads have a spherical or ellipsoidal shape and have a surface free of concave portions, advantageously having a uniform shape, and having a mean diameter lower than or equal to 1.7 mm and a porosity lower than 0.1 ml/g, and are produced using a particular cutting device/extruder.