LOW TEMPERATURE SEGMENTED COPOLYMER COMPOSITIONS AND METHODS
    36.
    发明申请
    LOW TEMPERATURE SEGMENTED COPOLYMER COMPOSITIONS AND METHODS 有权
    低温SEGMENTED共聚物组合物和方法

    公开(公告)号:US20150133602A1

    公开(公告)日:2015-05-14

    申请号:US14602279

    申请日:2015-01-22

    Abstract: There is provided a method of synthesizing a segmented copolymer that includes mixing one or more α,ω (alpha, omega) amine or α,ω (alpha, omega) hydroxyl terminated polysiloxane first soft segments having an average molecular weight of between about 2500 grams per mole to about 10,000 grams per mole, and one or more diisocyanate species, together to form a first reaction product; mixing the first reaction product and one or more low molecular weight diol or diamine chain extenders each having an average molecular weight of less than 400 grams per mole, together in a solvent to form a segmented copolymer; and, removing the solvent.

    Abstract translation: 提供了一种合成分段共聚物的方法,其包括混合一种或多种α,ω(α,ω)胺或α,ω(α,ω)羟基封端的聚硅氧烷,平均分子量为约2500克 每摩尔至约10,000克/摩尔,和一种或多种二异氰酸酯物质一起形成第一反应产物; 将第一反应产物和平均分子量小于400克/摩尔的一种或多种低分子量二醇或二胺增链剂一起在溶剂中混合以形成分段共聚物; 并除去溶剂。

    Cure promoter compositions and methods for the same

    公开(公告)号:US11802193B2

    公开(公告)日:2023-10-31

    申请号:US17654248

    申请日:2022-03-10

    CPC classification number: C08K5/0025 B05D3/108 C08K5/40

    Abstract: A cure promoter composition is disclosed, including an accelerator which may include a thiocarbamate, a hydrated thiocarbamate, a dithiocarbamate, a thiazole, a mercaptothiazole, a sulfenamide, a thiazolesulfenamide, a metal salt of thiocarbamate, sulfur chloride, or combinations thereof. The cure promoter composition also includes a compatibilizing carrier, one or more organic solvents, a catalyst, an optional reducing agent, an optional reactive silane, an optional reactive organometallic, an optional gelling agent, and an optional aqueous component. A method for applying the cure promoter composition is disclosed, including contacting the organic solvents, the accelerator, the carrier, the reactive silanes, the reactive organometallics, the reducing agents, and the catalyst with one another to prepare the cure promoter composition, homogenizing the cure promoter composition, pausing after homogenizing to allow the cure promoter time to react, applying a sealant onto a substrate, and applying the cure promoter composition to a surface of the sealant.

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