公开(公告)号：US20190055470A1

公开(公告)日：2019-02-21

申请号：US16078758

申请日：2017-03-21

Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

Inventor： Priscilla JOHNSTON ,  Raju ADHIKARI ,  Keith L. BRISTOW

IPC: C09K17/30 ,  C09K17/52

Abstract: A process for regulating the water retention of soil materials used in agriculture involving providing a composition comprising a polymer selected from the group consisting of a urethane, a urethaneurea, a thiocarbamate and mixtures thereof, said polymer comprising hydrophobic and hydrophilic segments; and applying the composition onto soil materials used in agriculture to form a polymer film thereon, wherein the hydrophobic and hydrophilic segments together provide reversible hydrophobic-hydrophilic switching in response to water, such that the film surface switches from a relatively hydrophobic state in dry conditions to a relatively hydrophilic state in response to the presence of water in contact with the film surface.

公开(公告)号：US20220183238A1

公开(公告)日：2022-06-16

申请号：US17686462

申请日：2022-03-04

Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

Inventor： Raju ADHIKARI ,  Philip CASEY ,  Keith L. BRISTOW ,  George FREISCHMIDT ,  John HORNBUCKLE

IPC: A01G13/02 ,  C08G18/75 ,  C08G18/08 ,  C08G18/32 ,  C08G18/12 ,  C08L75/04 ,  C08G18/42 ,  C08G18/48 ,  C08G18/38 ,  C08G18/24 ,  C08G18/40 ,  C08G18/28 ,  C09D175/04

Abstract: A process for preparing a polymeric membrane for soil materials used in crop production comprising providing an aqueous dispersion of polyurethane and spraying the aqueous dispersion onto soil materials to be used in crop production to form a polymeric membrane.

公开(公告)号：US20170135292A1

公开(公告)日：2017-05-18

申请号：US15316241

申请日：2015-06-03

Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

Inventor： Raju ADHIKARI ,  Philip CASEY ,  Keith L. BRISTOW ,  George FREISCHMIDT ,  John HORNBUCKLE

IPC: A01G13/02 ,  A01G1/00 ,  C08G18/28 ,  C09D175/04 ,  C08G18/75 ,  C08G18/32

CPC classification number: A01G13/0275 ,  A01G2013/004 ,  C08G18/0814 ,  C08G18/0823 ,  C08G18/12 ,  C08G18/246 ,  C08G18/2865 ,  C08G18/3206 ,  C08G18/3228 ,  C08G18/3823 ,  C08G18/4018 ,  C08G18/4277 ,  C08G18/4825 ,  C08G18/755 ,  C08G2310/00 ,  C08L75/04 ,  C09D175/04 ,  C08L5/04 ,  C08L33/26

Abstract: A process for preparing a polymeric membrane for soil materials used in crop production comprising providing an aqueous dispersion of polyurethane and spraying the aqueous dispersion onto soil materials to be used in crop production to form a polymeric membrane.