公开(公告)号：US20170232640A1

公开(公告)日：2017-08-17

申请号：US15518792

申请日：2015-10-30

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： William E. Hollar, Jr. ,  Robert Russell Gallucci ,  Franklin Ehrensbeck ,  Todd M. Loehr ,  Shankar Kollengodu Subramanian ,  Christopher Luke Hein ,  Qiying Jiang

IPC: B29B9/12 ,  B29C47/00 ,  C08J3/14 ,  C08K5/526 ,  C08K5/18 ,  C08J3/12 ,  B29B9/02 ,  C08J3/20

CPC classification number: B29B9/12 ,  B29B9/02 ,  B29B9/08 ,  B29B9/16 ,  B29C48/022 ,  B29K2069/00 ,  B29K2105/0032 ,  B29K2105/0044 ,  C08J3/12 ,  C08J3/14 ,  C08J3/201 ,  C08J2369/00 ,  C08K5/18 ,  C08K5/526

Abstract: Process for manufacturing a densified polymer powder comprising compressing a polymer feed that has a bulk density of less than or equal to 240 kg/m in a roll compactor comprising at least two compaction rolls to obtain a densified polymer material, wherein a gap between the two rolls is 0.5 to 10 mm, wherein the compaction rolls operate at a speed of 3 to 30 rpm, wherein an applied pressure of the roll compactor is 0.5 to 5 MPa, and milling the densified polymer material to obtain a densified polymer powder, wherein a bulk density of the densified polymer powder is greater than or equal to 250 kg/m3.

公开(公告)号：US10596727B2

公开(公告)日：2020-03-24

申请号：US15518792

申请日：2015-10-30

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： William E. Hollar, Jr. ,  Robert Russell Gallucci ,  Franklin Ehrensbeck ,  Todd M. Loehr ,  Shankar Kollengodu Subramanian ,  Christopher Luke Hein ,  Qiying Jiang

IPC: B29B9/12 ,  B29C48/00 ,  B29B9/16 ,  B29B9/08 ,  B29B9/02 ,  C08J3/12 ,  C08J3/14 ,  C08J3/20 ,  C08K5/18 ,  C08K5/526 ,  B29K69/00 ,  B29K105/00

Abstract: Process for manufacturing a densified polymer powder comprising compressing a polymer feed that has a bulk density of less than or equal to 240 kg/m in a roll compactor comprising at least two compaction rolls to obtain a densified polymer material, wherein a gap between the two rolls is 0.5 to 10 mm, wherein the compaction rolls operate at a speed of 3 to 30 rpm, wherein an applied pressure of the roll compactor is 0.5 to 5 MPa, and milling the densified polymer material to obtain a densified polymer powder, wherein a bulk density of the densified polymer powder is greater than or equal to 250 kg/m3.