Viscoelastic Polyurethane Foam with Aqueous Polymer Dispersion

    公开(公告)号:US20170362375A1

    公开(公告)日:2017-12-21

    申请号:US15534129

    申请日:2015-12-15

    Abstract: A reaction system for forming a viscoelastic polyurethane foam includes an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that is a mixture formed by adding at least a polyol component, an additive component, and a preformed aqueous polymer dispersion. The mixture includes, based on the total weight of the mixture, from 50.0 wt % to 99.8 wt % of a polyol component including at least one polyether polyol, from 0.1 wt % to 50.0 wt % of an additive component including at least one catalyst, and from 0.1 wt % to 6.0 wt % of a preformed aqueous polymer dispersion. The preformed aqueous polymer dispersion has a solids content from 10 wt % to 80 wt %, based on the total weight of the preformed aqueous polymer dispersion, and is one of an aqueous acid polymer dispersion or an aqueous acid modified polyolefin polymer dispersion in which the polyolefin is derived from at least one C2 to C20 alpha-olefin.

    SOLID, SELF-BONDABLE ORGANIC POLYMERS AND METHODS FOR USING SAME
    36.
    发明申请
    SOLID, SELF-BONDABLE ORGANIC POLYMERS AND METHODS FOR USING SAME 审中-公开
    固体,自粘合有机聚合物及其使用方法

    公开(公告)号:US20150291864A1

    公开(公告)日:2015-10-15

    申请号:US14443959

    申请日:2013-11-23

    Abstract: Solid compositions made from or coated with a non-melting organic polymer having a main glass transition temperature of at least 65° C., few if any isocyanate groups and a wet aged glass transition temperature of up to 60° C. are self-bonding materials that are useful in a variety of adhesive and molding operations. Under conditions of heat and moisture, these compositions will self-bond. The compositions can be used as adhesive coatings, which are solid and non-tacky and thus can be transported and stored easily under ambient conditions. These compositions are especially useful in applications in which, due to the location and/or orientation of the substrates, liquid or melting materials cannot be applied easily or will run off the substrates.

    Abstract translation: 由具有至少65℃的主要玻璃化转变温度的非熔融有机聚合物制成或涂覆的固体组合物,几乎没有异氰酸酯基团和高达60℃的湿老化玻璃化转变温度是自粘合的 可用于各种粘合和成型操作的材料。 在热和水分的条件下,这些组合物将自粘结。 组合物可以用作粘合剂涂层,其是固体和非粘性的,因此可以在环境条件下容易地运输和储存。 这些组合物特别适用于其中由于基材的位置和/或取向而使液体或熔融材料不能容易地应用或将从基材流出的应用中。

    Polyurethane foam with aqueous polymer dispersion

    公开(公告)号:US10450401B2

    公开(公告)日:2019-10-22

    申请号:US15533893

    申请日:2015-12-15

    Abstract: A reaction system for forming a polyurethane foam includes an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that is a mixture formed by adding at least a polyol component, an additive component, and a preformed aqueous polymer dispersion. The mixture includes, based on the total weight of the mixture, from 50.0 wt % to 99.8 wt % of a polyol component including at least one polyether polyol, from 0.1 wt % to 50.0 wt % of an additive component including at least one catalyst, and from 0.1 wt % to 6.0 wt % of a preformed aqueous polymer dispersion. The preformed aqueous polymer dispersion has a solids content from 10 wt % to 80 wt %, based on the total weight of the preformed aqueous polymer dispersion, and is one of an aqueous acid polymer dispersion or an aqueous acid modified polyolefin polymer dispersion in which the polyolefin is derived from at least one C2 to C20 alpha-olefin.

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