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    • 4. 发明公开
    • 발포 물품을 제조하는 방법
    • 生产泡沫物品的过程
    • KR1020100058619A
    • 2010-06-03
    • KR1020107007058
    • 2008-09-18
    • 렉티셀, 에스.아.
    • 브락케,크리스티안
    • B29C44/12B29C44/22
    • B29C44/1209B29C44/22B29C44/5618C08J9/405C08J2205/05C08J2375/04C08J2461/00C08J2475/00
    • The foamed article is produced starting from a core layer (1) which comprises a flexible, open-cell foamhaving voids forming at least 90% of the volume of the open-cell foam. The core layer (1) is applied in a mould (6, 8), optionally together with an upper (3) and/or a lower cover layer (2), between a lower (5) and an upper mould surface (9) thereof. The mould (6, 8) is closed and a curable, foamable composition (7) is allowed to foam in the mould to produce a further foamfilling the voids of the open-cell foam. In order to enable to use less foamable composition (7) to fill the voids of the open-cell foam, the core layer (1) is laid onto the lower mould surface (5) and the foamable composition (7) is sprayed onto the corelayer (1) lying onto the lower mould surface so that the foamable composition (7) can penetrate at least partially by gravity into the open-cell foamcore layer (1). Moreover, the foamable composition (7) has a dynamic viscosity, measured at a shear rate of 1/s, of lower than 1000mPa.s when arriving onto the core layer (1).
    • 泡沫制品从芯层(1)开始制造,该芯层包括形成开孔泡沫体积的至少90%的柔性开孔泡沫泡沫空隙。 将核心层(1)可选地与上部(3)和/或下部覆盖层(2)一起施加在模具(6,8)中,在下部(5)和上部模具表面(9)之间, 它们。 关闭模具(6,8),并使可固化的可发泡组合物(7)在模具中发泡以产生进一步的泡沫填充开孔泡沫的空隙。 为了能够使用较少的可发泡组合物(7)以填充开孔泡沫的空隙,将芯层(1)铺设在下模具表面(5)上,将可发泡组合物(7)喷涂到 芯层(1)位于下模具表面上,使得可发泡组合物(7)可以至少部分地通过重力穿透到开孔泡沫芯层(1)中。 此外,当到达芯层(1)时,可发泡组合物(7)具有在1 / s剪切速率下测得的低于1000mPa.s的动态粘度。