公开(公告)号：US20210087343A1

公开(公告)日：2021-03-25

申请号：US16635432

申请日：2018-07-30

Applicant: RUBRECO INC.

Inventor： Brian H. Harrison ,  Hurdon A. Hooper ,  Mathew Ness

IPC: C08G85/00 ,  C08J11/14 ,  C08J11/20

Abstract: Vents and micro-structures of rubber molds may become clogged with rubber that is difficult to remove. These vents and micro-structures can be cleaned of rubber, even if heat aged, by subjecting the mold to high temperatures in the presence of a solvent to devulcanize any rubber present. If the rubber used with the mold being cleaned includes carbon black, a solvent may be used to dissolve the devulcanized polymer, leaving the carbon black which can be removed by water jets or other cleaning means.

公开(公告)号：US11377524B2

公开(公告)日：2022-07-05

申请号：US16635432

申请日：2018-07-30

Applicant: RUBRECO INC.

Inventor： Brian H. Harrison ,  Hurdon A. Hooper ,  Mathew Ness

IPC: C08G85/00 ,  C08J11/14 ,  C08J11/20

Abstract: Vents and micro-structures of rubber molds may become clogged with rubber that is difficult to remove. These vents and micro-structures can be cleaned of rubber, even if heat aged, by subjecting the mold to high temperatures in the presence of a solvent to devulcanize any rubber present. If the rubber used with the mold being cleaned includes carbon black, a solvent may be used to dissolve the devulcanized polymer, leaving the carbon black which can be removed by water jets or other cleaning means.