公开(公告)号：NZ268852A

公开(公告)日：1997-03-24

申请号：NZ26885294

申请日：1994-07-15

Applicant: TECH RESOURCES PTY LTD

Inventor： MCALLISTER PETER JAMES ,  ROY IAN ,  HOFFMANN WARWICK ,  BEAUPEURT SUSAN MERYL

IPC: C12N1/14 ,  B08B7/00 ,  B09B3/00 ,  B09B5/00 ,  B44D3/16 ,  C09D9/02 ,  C12N1/20 ,  C12P1/02 ,  C12R1/82 ,  C12S9/00 ,  C22B1/00 ,  C23G5/00 ,  B08B3/10 ,  B08B9/38

Abstract: This invention relates to novel methods for removing paint, lacquers and other coatings from metal and alloy materials, in particular metallic cans. One method of the present invention involves a combination of steps including: (i) a pre-treatment step to alter the structure of the paint, lacquer or other coating, such pre-treatment preferably involving heat, making the coating more amenable to biostripping; and (ii) contacting the metal or alloy material with a bacterial culture capable of removing said coating. In an alternative method the combination of steps includes: (i) a heat treatment step to alter the structure of the paint, lacquer or other coating; and (ii) an abrasive treatment involving contacting the heat treated coated metal or alloy material in step (i) with a similarly heated material and/or with an untreated and/or uncoated like metal or alloy material, wherein the contact is caused by rolling in a rolling reactor. The abrasion step makes the paint, lacquer or coating of the metal or alloy in step (2) amenable to stripping with a fluid which fluid is either present in the rolling reactor or is jet sprayed onto the heat treated and abraded coated metal or alloy material. The removed paint, lacquer or other coating, and/or the liquid used to remove the coating is treated with orgamisms such as bacteria, capable of degrading said coating, before subsequent disposal.

公开(公告)号：AU679090B2

公开(公告)日：1997-06-19

申请号：AU7222994

申请日：1994-07-15

Applicant: TECH RESOURCES PTY LTD

Inventor： MCALLISTER PETER JAMES ,  ROY IAN ,  HOFFMANN WARWICK ARTHUR ,  BEAUPEURT SUSAN MERYL

IPC: B08B3/10 ,  B08B9/38 ,  C09D9/02 ,  C12N1/14 ,  C12N1/20 ,  C12S9/00

公开(公告)号：AU7222994A

公开(公告)日：1995-02-13

申请号：AU7222994

申请日：1994-07-15

Applicant: TECH RESOURCES PTY LTD

Inventor： MCALLISTER PETER JAMES ,  ROY IAN ,  HOFFMANN WARWICK ARTHUR ,  BEAUPEURT SUSAN MERYL

IPC: B08B3/10 ,  B08B9/38 ,  C09D9/02 ,  C12N1/14 ,  C12N1/20 ,  C12S9/00

公开(公告)号：ZA945173B

公开(公告)日：1995-02-27

申请号：ZA945173

申请日：1994-07-15

Applicant: TECH RESOURCES PTY LTD

Inventor： MCALLISTER PETER JAMES ,  ROY IAN ,  HOFFMANN WARWICK ARTHUR ,  BEAUPEURT SUSAN MERYL

IPC: C12N1/14 ,  B08B7/00 ,  B09B3/00 ,  B09B5/00 ,  B44D3/16 ,  C09D9/02 ,  C12N1/20 ,  C12P1/02 ,  C12R1/82 ,  C12S9/00 ,  C22B1/00 ,  C23G5/00 ,  B08B ,  B24C ,  C09D ,  C23G

Abstract: This invention relates to novel methods for removing paint, lacquers and other coatings from metal and alloy materials, in particular metallic cans. One method of the present invention involves a combination of steps including: (i) a pre-treatment step to alter the structure of the paint, lacquer or other coating, such pre-treatment preferably involving heat, making the coating more amenable to biostripping; and (ii) contacting the metal or alloy material with a bacterial culture capable of removing said coating. In an alternative method the combination of steps includes: (i) a heat treatment step to alter the structure of the paint, lacquer or other coating; and (ii) an abrasive treatment involving contacting the heat treated coated metal or alloy material in step (i) with a similarly heated material and/or with an untreated and/or uncoated like metal or alloy material, wherein the contact is caused by rolling in a rolling reactor. The abrasion step makes the paint, lacquer or coating of the metal or alloy in step (2) amenable to stripping with a fluid which fluid is either present in the rolling reactor or is jet sprayed onto the heat treated and abraded coated metal or alloy material. The removed paint, lacquer or other coating, and/or the liquid used to remove the coating is treated with orgamisms such as bacteria, capable of degrading said coating, before subsequent disposal.

公开(公告)号：ZA9405173B

公开(公告)日：1995-02-27

申请号：ZA9405173

申请日：1994-07-15

Applicant: TECH RESOURCES PTY LTD

Inventor： MCALLISTER PETER JAMES ,  ROY IAN ,  HOFFMANN WARWICK ARTHUR ,  BEAUPEURT SUSAN MERYL

IPC: C12N1/14 ,  B08B7/00 ,  B09B3/00 ,  B09B5/00 ,  B44D3/16 ,  C09D9/02 ,  C12N1/20 ,  C12P1/02 ,  C12R1/82 ,  C12S9/00 ,  C22B1/00 ,  C23G5/00 ,  B08B ,  B24C ,  C09D ,  C23G

CPC classification number: C22B1/005 ,  B08B7/0078 ,  B08B2220/04 ,  B44D3/166 ,  C12P1/02 ,  C12R1/80 ,  Y02P10/238

Abstract: This invention relates to novel methods for removing paint, lacquers and other coatings from metal and alloy materials, in particular metallic cans. One method of the present invention involves a combination of steps including: (i) a pre-treatment step to alter the structure of the paint, lacquer or other coating, such pre-treatment preferably involving heat, making the coating more amenable to biostripping; and (ii) contacting the metal or alloy material with a bacterial culture capable of removing said coating. In an alternative method the combination of steps includes: (i) a heat treatment step to alter the structure of the paint, lacquer or other coating; and (ii) an abrasive treatment involving contacting the heat treated coated metal or alloy material in step (i) with a similarly heated material and/or with an untreated and/or uncoated like metal or alloy material, wherein the contact is caused by rolling in a rolling reactor. The abrasion step makes the paint, lacquer or coating of the metal or alloy in step (2) amenable to stripping with a fluid which fluid is either present in the rolling reactor or is jet sprayed onto the heat treated and abraded coated metal or alloy material. The removed paint, lacquer or other coating, and/or the liquid used to remove the coating is treated with orgamisms such as bacteria, capable of degrading said coating, before subsequent disposal.