SURFACTANT, DISPERSION AND ADHESIVE COMPOSITION

    公开(公告)号:WO2022026055A1

    公开(公告)日:2022-02-03

    申请号:PCT/US2021/035648

    申请日:2021-06-03

    申请人: LAWTER, INC.

    发明人: HAZEN, John

    IPC分类号: C09F1/04 C09F1/00

    摘要: The invention relates to a surfactant comprising a grafted rosin ester which is a rosin ester grafted with a capped polyalkylene glycol, wherein the capped polyalkylene glycol is a polyalkylene glycol capped by an alkyl ether and an aqueous dispersion consisting of an aqueous phase and resin particles dispersed in the aqueous phase, wherein the dispersion comprises the surfactant according to the invention.

    POLYAMIDE DISPERSIONS
    4.
    发明申请

    公开(公告)号:WO2019204227A1

    公开(公告)日:2019-10-24

    申请号:PCT/US2019/027537

    申请日:2019-04-15

    申请人: LAWTER INC.

    IPC分类号: C08J3/205 C08J3/03

    摘要: A process of producing a polyamide dispersion includes heating a polyamide to above its melting point; adding a surfactant to form a mixture; under shearing conditions, adding water solution having a basic pH to the mixture to form a sheared mixture; and cooling the sheared mixture to provide the polyamide dispersion; wherein the process is conducted in the absence of an organic solvent, and the sheared mixture comprises particles of a polyamide having a volume mean particle size of less than 1 micron.

    BIORENEWABLE RESIN COMPOSITION FOR WELL TREATMENT

    公开(公告)号:WO2018140400A1

    公开(公告)日:2018-08-02

    申请号:PCT/US2018/014858

    申请日:2018-01-23

    申请人: LAWTER, INC.

    发明人: RAMOS, Eva

    IPC分类号: C09K8/80

    摘要: A proppant includes coating of a lignin containing phenolic resin. The proppants may be used in subterranean well formations and hydraulic fracturing operations.