公开(公告)号：US09757875B2

公开(公告)日：2017-09-12

申请号：US14485175

申请日：2014-09-12

申请人： Shaw Industries Group, Inc.

发明人： Joseph E. Bork ,  Stephen C. Paspek, Sr. ,  Alan F. Schroeder ,  William H. Heise

IPC分类号： B29B17/02 ,  B02C19/18 ,  C08J11/08 ,  C08J11/04 ,  D01B9/00 ,  C08G63/183 ,  C08G69/02 ,  B29K105/06 ,  B29L31/00 ,  B29K67/00 ,  B29K77/00

CPC分类号： B02C19/186 ,  B29B17/02 ,  B29B17/021 ,  B29B2017/0217 ,  B29B2017/0255 ,  B29K2067/003 ,  B29K2077/00 ,  B29K2105/06 ,  B29K2105/065 ,  B29K2105/26 ,  B29K2313/00 ,  B29L2031/7322 ,  C08G63/183 ,  C08G69/02 ,  C08J11/04 ,  C08J11/08 ,  D01B9/00 ,  D06N7/0071 ,  Y02P20/582 ,  Y02W30/622 ,  Y10S241/38 ,  Y10T225/12

摘要： Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.

公开(公告)号：US10376897B2

公开(公告)日：2019-08-13

申请号：US15669531

申请日：2017-08-04

申请人： Shaw Industries Group, Inc.

发明人： Joseph E. Bork ,  Stephen C. Paspek, Sr. ,  Alan F. Schroeder ,  William H. Heise

IPC分类号： B02C19/00 ,  B02C19/18 ,  B29B17/02 ,  C08J11/08 ,  C08J11/04 ,  D01B9/00 ,  C08G63/183 ,  C08G69/02 ,  D06N7/00 ,  B29K105/06 ,  B29L31/00 ,  B29K67/00 ,  B29K77/00 ,  B29K105/26

摘要： Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.