公开(公告)号：US20250019679A1

公开(公告)日：2025-01-16

申请号：US18889684

申请日：2024-09-19

Applicant: CARBIOS

Inventor： CHRISTOPHER TOPHAM ,  HÉLÈNE TEXIER ,  VINCENT TOURNIER ,  MARIE-LAURE DESROUSSEAUX ,  SOPHIE DUQUESNE ,  ISABELLE ANDRE ,  SOPHIE BARBE ,  ALAIN MARTY

IPC: C12N9/18 ,  C08J11/10

Abstract: The present invention relates to novel esterase, more particularly to esterase variants having improved thermostability compared to the esterase of SEQ ID No 1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.

公开(公告)号：US20240228732A1

公开(公告)日：2024-07-11

申请号：US18560951

申请日：2022-05-20

Applicant: CARBIOS

Inventor： ALAIN MARTY ,  VINCIANE BORSENBERGER ,  VINCENT TOURNIER

IPC: C08J11/10 ,  C08J3/12 ,  C08J3/20 ,  C08J9/00

CPC classification number: C08J11/105 ,  C08J3/12 ,  C08J3/203 ,  C08J9/0066 ,  C08J2367/02

Abstract: The present invention relates to a process for degrading plastic, wherein said plastic products are selected from plastic and/or textiles comprising polyester comprising at least a terephthalic acid monomer. The process of the invention particularly comprises a step of enzymatic depolymerization implemented in acidic conditions at a pH between 3 and 6.

公开(公告)号：US20230135014A1

公开(公告)日：2023-05-04

申请号：US17887544

申请日：2022-08-15

Applicant: CARBIOS

Inventor： CHRISTOPHER TOPHAM ,  HÉLÈNE TEXIER ,  VINCENT TOURNIER ,  MARIE-LAURE DESROUSSEAUX ,  SOPHIE DUQUESNE ,  ISABELLE ANDRE ,  SOPHIE BARBE ,  ALAIN MARTY

IPC: C12N9/18 ,  C08J11/10

Abstract: The present invention relates to novel esterase, more particularly to esterase variants having improved thermostability compared to the esterase of SEQ ID No 1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.

公开(公告)号：US20220363861A1

公开(公告)日：2022-11-17

申请号：US17291291

申请日：2019-11-05

Applicant: CARBIOS

Inventor： ALAIN MARTY

IPC: C08J11/10

Abstract: The present invention relates to a process for enzymatic depolymerization of polyethylene terephthalate (PET), in particular contained in a plastic material. The process according to the invention can in particular be implemented on an industrial or semi-industrial scale.

公开(公告)号：US20230048275A1

公开(公告)日：2023-02-16

申请号：US17786566

申请日：2020-12-18

Applicant: CARBIOS

Inventor： ALAIN MARTY ,  MICHEL CHATEAU ,  MADIHA ALOUI DALIBEY

IPC: C08J11/10 ,  C08J9/08 ,  C08J9/12 ,  C12P7/62

Abstract: The present invention relates to a process for degrading a plastic product comprising at least one polymer, said process comprising the steps of foaming at least partially the plastic product; and depolymerizing at least one target polymer of the at least partially foamed plastic product, wherein the step of foaming is performed at a temperature at which the plastic product is in a partially or totally molten state.

公开(公告)号：US20210009980A1

公开(公告)日：2021-01-14

申请号：US17037775

申请日：2020-09-30

Applicant: CARBIOS

Inventor： ALAIN MARTY ,  SOPHIE DUQUESNE ,  MARIE GUICHERD ,  MARLENE VUILLEMIN ,  MAHER BEN KHALED

IPC: C12N9/64 ,  C08J11/10 ,  C12N15/52 ,  C12N15/74 ,  C12P21/02

Abstract: The present invention relates to novel proteases, more particularly to protease variants having improved activity compared to the protease of SEQ ID N° 1 and the uses thereof for degrading polyester containing material, such as plastic products. The proteases of the invention are particularly suited to degrade polylactic acid, and material containing polylactic acid.

公开(公告)号：US20200277585A1

公开(公告)日：2020-09-03

申请号：US16819222

申请日：2020-03-16

Applicant: CARBIOS

Inventor： VINCENT TOURNIER ,  HÉLÈNE TEXIER ,  MARIE-LAURE DESROUSSEAUX ,  CHRISTOPHER TOPHAM ,  ISABELLE ANDRE ,  SOPHIE BARBE ,  SOPHIE DUQUESNE ,  ALAIN MARTY

IPC: C12N9/18 ,  C12N15/52

Abstract: The present invention relates to novel esterase, more particularly to esterase variants having improved activity compared to the esterase of SEQ ID No 1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.

公开(公告)号：US20190218360A1

公开(公告)日：2019-07-18

申请号：US16302107

申请日：2017-05-18

Applicant: CARBIOS

Inventor： MARIE-LAURE DESROUSSEAUX ,  HELENE TEXIER ,  SOPHIE DUQUESNE ,  ALAIN MARTY ,  MEDIHA ALOUI DALIBEY ,  MICHEL CHATEAU

IPC: C08J11/10 ,  C08J11/14

CPC classification number: C08J11/105 ,  C08J11/14 ,  C08J2367/02 ,  C08J2367/04 ,  Y02W30/702

Abstract: The present invention relates to processes for degrading plastic products and the uses thereof. The processes of the invention particularly comprise a step of amorphizing a plastic product prior to a step of depolymerization. The processes of the invention are particularly useful for degrading a plastic product comprising polyethylene terephthalate and/or polylactic acid. The invention also relates to a method of producing monomers and/or oligomers from a plastic product comprising at least one polyester, particularly polyethylene terephthalate and/or polylactic acid, comprising submitting the plastic product both to an amorphization step and to a depolymerization step.

公开(公告)号：US20240228731A1

公开(公告)日：2024-07-11

申请号：US18560943

申请日：2022-05-20

Applicant: CARBIOS

Inventor： ALAIN MARTY ,  VINCIANE BORSENBERGER ,  VINCENT TOURNIER

IPC: C08J11/10 ,  C08J3/12 ,  C08J3/20 ,  C08J9/00

CPC classification number: C08J11/105 ,  C08J3/12 ,  C08J3/203 ,  C08J9/0066 ,  C08J2367/02

Abstract: The present invention relates to a process for degrading plastic products that comprises a step of enzymatic depolymerization implemented in acidic conditions at a pH between 4 and 6, in a reaction medium containing a defined amount of soluble equivalent terephthalic acid mostly in the form of salts.

公开(公告)号：US20220251327A1

公开(公告)日：2022-08-11

申请号：US17625783

申请日：2020-07-10

Applicant: CARBIOS

Inventor： ALAIN MARTY ,  VINCENT TOURNIER

IPC: C08J11/10 ,  C12N9/18 ,  C11D3/386

Abstract: The present invention relates to novel esterases, more particularly to esterase variants having improved activity and/or improved thermostability compared to the esterase of SEQ ID NO: 1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.