Aqueous Polyurethane-Polyurea Dispersions
    143.
    发明申请

    公开(公告)号:US20130078474A1

    公开(公告)日:2013-03-28

    申请号:US13698874

    申请日:2011-04-27

    IPC分类号: C09D175/12 C08L75/12

    摘要: The invention relates to a method for producing aqueous polyurethane-polyurea dispersions, where A) first a polyurethane prepolymer containing NCO groups is produced by reacting A1) polyisocyanates with A2) polymeric polyols and/or polyamines having number-average molecular weights of more than 400 to 8,000 g/mol, A3) possibly low-molecular-weight compounds having number-average molecular weights of 17-400 g/mol selected from the group comprising mono- and polyalcohols, mono- and polyamines, and amino alcohols, A4) isocyanate-reactive, ionically or potentially ionically hydrophilic compounds and/or isocyanate-reactive non-ionically hydrophilic compounds, A5) isocyanate-reactive compounds, which contain at least one C7 to C24 alkyl group or C7 to C24 alkenyl group, and A6) isocyanate-reactive compounds, which contain at least one polysiloxane group, and B); the NCO groups of the prepolymer that are not yet free are reacted with isocyanate-reactive monoamines, polyamines, hydrazine, and/or hydrazides, dimensioned in such a way that a calculated ratio of the isocyanate-reactive NH groups to the NCO groups of 0.7 to 1.2 is achieved.

    Low-VOC leather
    144.
    发明授权
    Low-VOC leather 有权
    低VOC皮革

    公开(公告)号:US08062540B2

    公开(公告)日:2011-11-22

    申请号:US12810665

    申请日:2008-12-26

    IPC分类号: C14C9/00

    摘要: A natural leather is treated with a tanning agent, a re-tanning agent, a dye and a greasing agent, wherein a treatment agent for inhibiting the generation of formaldehyde and acetaldehyde from the natural leather is added to the greasing step so that the natural leather is impregnated with the treatment agent. The treatment agent includes a hydrazide compound optionally together with sodium hydrogen sulfite.

    摘要翻译: 天然皮革用鞣剂,再鞣剂,染料和润滑剂处理,其中将用于抑制天然皮革产生甲醛和乙醛的处理剂加入到润滑步骤中,使天然皮革 用处理剂浸渍。 处理剂包括任选地与亚硫酸氢钠一起的酰肼化合物。

    TOPCOAT
    145.
    发明申请
    TOPCOAT 有权

    公开(公告)号:US20110078862A1

    公开(公告)日:2011-04-07

    申请号:US12992895

    申请日:2009-05-15

    IPC分类号: C14C11/00

    摘要: Provided is a natural leather having a novel coating layer which feels leathery. The coating film retains material properties such as strength and wearing resistance. When the user directly touches the natural leather, the coating layer present on the surface of the natural leather gives slick characteristics of natural leathers and smoothness. The natural leather has a coating film formed on a surface thereof, the coating film including: a color coat layer formed from a mixture of a hard component (10% modulus is more than 2.3 but no more than 3.0) and a soft component (10% modulus is more than 0.0 but no more than 1.0) of a two-component polyurethane resin; and a topcoat layer formed from a mixture of a medium component (resin having a 10% modulus of more than 1.0 but no more than 2.3) and a soft component (resin having a 10% modulus of more than 0.0 but no more than 1.0) of a two-component polyurethane resin.

    摘要翻译: 提供具有感觉革质的新颖涂层的天然皮革。 涂膜保持材料性能如强度和耐磨性。 当用户直接接触天然皮革时,天然皮革表面上的涂层具有天然皮革的光滑特性和光滑度。 天然皮革在其表面上具有涂膜,所述涂膜包括:由硬组分(10%模量大于2.3且不大于3.0)和软组分(10)的混合物形成的着色涂层 %模量大于0.0,但不大于1.0)的双组分聚氨酯树脂; 和由中间成分(10%以上的模量大于1.0但不超过2.3的树脂)和软成分(10%模量大于0.0但不超过1.0的树脂)的混合物形成的面漆层, 的双组分聚氨酯树脂。

    LOW-VOC LEATHER
    146.
    发明申请
    LOW-VOC LEATHER 有权
    低VOC皮革

    公开(公告)号:US20100281622A1

    公开(公告)日:2010-11-11

    申请号:US12810665

    申请日:2008-12-26

    IPC分类号: C14C11/00 C14C9/04 C07C231/10

    摘要: This object relates to a natural leather which is obtained by forming a coating film through the greasing step following re-tanning and dyeing and the drying step. The purpose of this object is to provide a natural leather, wherein the generation of free formaldehyde and acetaldehyde is inhibited, and a treating agent to be added in the greasing step for natural leather. A natural leather wherein formaldehyde and acetaldehyde generated by a tanning agent, a re-tanning agent, a dye and a greasing agent having been incorporated into a leather are confined in the leather with a treating agent to be added in the greasing step for natural leather which contains a hydrazide compound optionally together with sodium hydrogen sulfite to thereby inhibit or prevent the generation of formaldehyde and acetaldehyde, and an automobile interior part coated with this natural leather.

    摘要翻译: 本发明涉及通过在再鞣和染色和干燥步骤之后通过润湿步骤形成涂膜而获得的天然皮革。 该目的的目的是提供一种天然皮革,其中游离甲醛和乙醛的产生被抑制,以及在天然皮革的润滑步骤中加入的处理剂。 一种天然皮革,其中通过鞣剂,再鞣剂,染料和已经掺入皮革中的润滑剂产生的甲醛和乙醛被限制在皮革中,加入到用于天然皮革的润滑步骤中的处理剂 其包含任选地与亚硫酸氢钠一起的酰肼化合物,从而抑制或防止甲醛和乙醛的产生,以及涂覆有该天然皮革的汽车内部部件。