公开(公告)号：US20220025190A1

公开(公告)日：2022-01-27

申请号：US17494338

申请日：2021-10-05

Applicant: OMYA INTERNATIONAL AG

Inventor： Daniel E. GERARD ,  Samuel RENTSCH ,  Matthias WELKER ,  Simon URWYLER ,  Joachim GLAUBITZ ,  Martina Elisabeth KNUPFER ,  Patrick A. C. GANE

IPC: C09C1/02 ,  D21H17/67 ,  D21H19/38 ,  D21H21/52

Abstract: A method of providing micronutrient delivery and/or plant protection is described, the method comprising administering a surface-reacted calcium carbonate as a metal cation releaser to deliver the micronutrient and/or provide plant protection. The surface-reacted calcium carbonate is obtained by a process comprising treating a calcium carbonate-comprising material with at least one H3O+ ion donor, carbon dioxide, and at least one water-soluble metal cation source in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate.

公开(公告)号：US20220025189A1

公开(公告)日：2022-01-27

申请号：US17492989

申请日：2021-10-04

Applicant: OMYA INTERNATIONAL AG

Inventor： Daniel E. GERARD ,  Samuel RENTSCH ,  Matthias WELKER ,  Simon URWYLER ,  Joachim GLAUBITZ ,  Martina Elisabeth KNUPFER ,  Patrick A. C. GANE

IPC: C09C1/02 ,  D21H17/67 ,  D21H19/38 ,  D21H21/52

Abstract: A method of preserving, controlling an odor, and/or enhancing and/or mediating antimicrobial activity of a substrate is described, the method comprising administering a surface-reacted calcium carbonate. The surface-reacted calcium carbonate is obtained by a process comprising treating a calcium carbonate-comprising material with at least one H3O+ ion donor, carbon dioxide, and at least one water-soluble metal cation source in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate.

公开(公告)号：US20220017753A1

公开(公告)日：2022-01-20

申请号：US17492216

申请日：2021-10-01

Applicant: OMYA INTERNATIONAL AG

Inventor： Daniel E. GERARD ,  Samuel RENTSCH ,  Matthias WELKER ,  Simon URWYLER ,  Joachim GLAUBITZ ,  Martina Elisabeth KNUPFER ,  Patrick A. C. GANE

IPC: C09C1/02 ,  D21H17/67 ,  D21H19/38 ,  D21H21/52

Abstract: A surface-reacted calcium carbonate is described. In embodiments, the surface-reacted calcium carbonate is obtained by a process comprising treating a calcium carbonate-comprising material with at least one H3O+ ion donor, carbon dioxide, and at least one water-soluble metal cation source in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate.

公开(公告)号：US20220169861A1

公开(公告)日：2022-06-02

申请号：US17593868

申请日：2020-04-07

Applicant: Omya International AG

Inventor： Daniel E. GERARD

IPC: C09C1/02

Abstract: The present invention relates to a process for producing a surface-reacted calcium carbonate, wherein a calcium carbonate-comprising material is treated with at least one inorganic acid and carbon dioxide in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate, wherein the at least one water-soluble, inorganic magnesium salt is added before, during and/or after the treatment step. Furthermore, the present invention relates to a surface-reacted calcium carbonate obtained from said process and its use.

公开(公告)号：US20220089879A1

公开(公告)日：2022-03-24

申请号：US17420308

申请日：2020-01-31

Applicant: OMYA INTERNATIONAL AG

Inventor： Daniel E. GERARD ,  Lassi KARVONEN

IPC: C09C1/02 ,  C01B25/32 ,  C09C3/04

Abstract: The present invention relates to a process for producing an aqueous suspension of surface-reacted calcium salt particles by mixing a calcium salt excluding monocalcium phosphate and dicalcium phosphate, a calcium phosphate selected from monocalcium phosphate and/or dicalcium phosphate, with water, and grinding the obtained aqueous suspension at a pH value of at least 4.2 to form an aqueous suspension of surface-reacted calcium salt particles.

公开(公告)号：US20190161619A1

公开(公告)日：2019-05-30

申请号：US16320654

申请日：2017-07-20

Applicant: OMYA INTERNATIONAL AG

Inventor： Daniel E. GERARD ,  Samuel RENTSCH ,  Matthias WELKER ,  Simon URWYLER ,  Joachim GLAUBITZ ,  Martina Elisabeth KNUPFER ,  Patrick A. C. GANE

IPC: C09C1/02 ,  D21H17/67 ,  D21H19/38 ,  D21H21/52

Abstract: A process of producing a surface-reacted calcium carbonate is described. In embodiments, a calcium carbonate-comprising material is treated with at least one H3O+ ion donor, carbon dioxide, and at least one water-soluble metal cation source in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate. A surface-reacted calcium carbonate obtained by said process and its use are also described.