Apparatus for producing a foamed mass of a polyurea elastomer
    2.
    发明授权
    Apparatus for producing a foamed mass of a polyurea elastomer 失效
    用于生产聚脲弹性体发泡体的装置

    公开(公告)号:US5270014A

    公开(公告)日:1993-12-14

    申请号:US883832

    申请日:1992-05-15

    摘要: Through three separate passages opening in a common plane at right angles to one another into a mixing chamber, three components of a reactant polyurethane or polyurea elastomer composition to form in a mold cavity are introduced. One of the components is an aliphatic polyether amine having primary amino function and substantially free from free hydroxyl groups, catalysts with tertiary amino groups, carbon dioxide as a carbamate reactive with the polyether amine and optionally other inert gases and conventional polyurea additives. The second component is a polyisocyanate or prepolymer thereof and the third component C is water. The reacting mixture is formed through a throttle gap into the mold to form low-density foamed products under low fuming conditions and has no unreacted diisocyanates.

    摘要翻译: 通过在公共平面中以彼此成直角相互打开的三个独立通道进入混合室,引入在模腔中形成的反应物聚氨酯或聚脲弹性体组合物的三个组分。 组分之一是具有伯氨基官能团并且基本上不含游离羟基的脂族聚醚胺,具有叔氨基的催化剂,作为与聚醚胺反应的氨基甲酸酯的二氧化碳和任选的其它惰性气体和常规的聚脲添加剂。 第二组分是多异氰酸酯或其预聚物,第三组分C是水。 反应混合物通过节流缝隙形成模具,以在低发烟条件下形成低密度发泡产品,并且没有未反应的二异氰酸酯。

    Method of and apparatus for producing a foamed mass of a polyurea
elastomer
    9.
    发明授权
    Method of and apparatus for producing a foamed mass of a polyurea elastomer 失效
    用于生产泡沫塑料聚氨酯弹性体的方法和装置

    公开(公告)号:US5157059A

    公开(公告)日:1992-10-20

    申请号:US851693

    申请日:1992-03-13

    摘要: Through three separate passages opening in a common plane at right angles to one another into a mixing chamber, three components of a reactant polyurethane or polyurea elastomer composition to form in a mold cavity are introduced. One of the components is an aliphatic polyether amine having primary amino function and substantially free from free hydroxyl groups, catalysts with tertiary amino groups, carbon dioxide as a carbamate reactive with the polyether amine and optionally other inert gases and conventional polyurea additives. The second component is a polyisocyanate or prepolymer thereof and the third component C is water. The reacting mixture is formed through a throttle gap into the mold to form low-density foamed products under low fuming conditions and has no unreacted diisocyanates.

    摘要翻译: 通过在公共平面中以彼此成直角相互打开的三个独立通道进入混合室,引入在模腔中形成的反应物聚氨酯或聚脲弹性体组合物的三个组分。 组分之一是具有伯氨基官能团并且基本上不含游离羟基的脂族聚醚胺,具有叔氨基的催化剂,作为与聚醚胺反应的氨基甲酸酯的二氧化碳和任选的其它惰性气体和常规的聚脲添加剂。 第二组分是多异氰酸酯或其预聚物,第三组分C是水。 反应混合物通过节流缝隙形成模具,以在低发烟条件下形成低密度发泡产品,并且没有未反应的二异氰酸酯。

    Plastics foam production
    10.
    发明授权
    Plastics foam production 失效
    塑料泡沫生产

    公开(公告)号:US4430446A

    公开(公告)日:1984-02-07

    申请号:US443040

    申请日:1982-11-19

    申请人: Kenneth C. Lynn

    发明人: Kenneth C. Lynn

    摘要: Disclosed is a method for forming pre-froth plastics foam which comprises the steps of mixing the plastics components with a volatile liquid under pressure, causing the mixture to flow to a point of use, and maintaining a series of controlled pressure drops by means of present automatic valves or by passive means such as orifice plates. Typical foams are polyurethane and phenolic.

    摘要翻译: 公开了一种形成泡沫塑料泡沫塑料的方法,该方法包括以下步骤:在压力下将塑料组分与挥发性液体混合,使混合物流到使用点,并通过现有的方式保持一系列受控的压降 自动阀或通过诸如孔板的被动装置。 典型的泡沫是聚氨酯和酚醛树脂。