Abstract:
The invention relates to a method for producing multi-layered lignocellulose materials having a core and an upper and a lower cover layer, said method comprising the following steps a) mixing the components, b) spreading the mixtures in layers, c) pre-compressing, d) applying a high-frequency electric field e) hot pressing. According to the invention, a mixture of C) 1-15 wt.-% of a binding agent selected from the group consisting of aminoplastic resin and organic isocyanate having at least two isocyanate groups [components C)], F) 0.1-3% alkali-/akaline earth salts, for the cover layers of the lignocellulose particles G) with H) 1-15% of a binding agent selected from the group consisting of aminoplastic resin and an organic isocyanate is mixed. After step a) the mixture for the core contains, with respect to the total dry weight of the mixture of the components A)-F) 3-15% water, the mixture for the cover layers of the components G)-K) contains 5-20% water, and the following conditions are met: F)≥1,1•components K) and [components F)+components D)]≥1,1•[components K)+components I)].
Abstract:
The invention relates to particulate aminoplastic material composed of at least one aminoplastic, where the specific surface area of the particles is from 1 to 500 m2/g, and the average diameter of the particles is from 5 to 500 μm. The invention further relates to a process for producing said particulate aminoplastic material, to a molding which comprises particulate aminoplastic material, and also to a production process for the molding, and to the use of the particulate aminoplastic material and of the molding, for example as plastics membrane in batteries.
Abstract:
The present invention relates to lignocellulose materials which comprise A) 30 to 98 wt % of one or more lignocellulosic substances, B) 1 to 25 wt % of expanded plastics particles having a bulk density in the range from 10 to 150 kg/m3, C) 1 to 50 wt % of a binder selected from the group consisting of amino resin, phenol-formaldehyde resin, organic isocyanate having at least two isocyanate groups, or mixtures thereof, optionally with a curing agent, and D) 0 to 68 wt % of additives, wherein component B) or the original expandable plastics particles are coated with at least one coating material before, during, or after expansion.
Abstract translation:本发明涉及木素纤维素材料,其包含A)30至98重量%的一种或多种木质纤维素物质,B)1至25重量%的堆积密度在10至150kg / m 3范围内的发泡塑料颗粒,C )1至50重量%的选自氨基树脂,酚醛树脂,具有至少两个异氰酸酯基的有机异氰酸酯或其混合物,任选与固化剂的粘合剂的粘合剂,以及D)0至68重量% 的添加剂,其中组分B)或原始可发泡塑料颗粒在膨胀之前,期间或之后用至少一种涂料涂覆。
Abstract:
The present invention relates to a method for the production of a particle based element, in particular a particle board or fiber board, wherein particles (2) are dispersed in a dispersing section (5) to form a particle mass (15), and a modification substance (13) is provided modifying the properties of the particle mass (15), such that particles (2) with accordingly modified properties are arranged in at least one predetermined region of the particle mass (15). The modification substance (13) is injected into the particles (2) before the particles (2) form the particle mass (15), wherein the modification substance (13) is injected into the particles (2) in an injection direction, which is inclined with respect to the flow direction (200) of the particle stream at the injection location. The invention further relates to an apparatus (1) for the production of a particle based element, a particle based element, and a further method for the production of a particle based element.
Abstract:
The present invention relates tolignocellulosic materials having a core and two outer layers, comprising, preferably consisting of, in the core A) 30 to 98% by weight of lignocellulose particles, B) 0 to 25% by weight of expanded plastics particles having a bulk density in the range from 10 to 150 kg/m3, C) 1 to 50% by weight of one or more binders selected from the group consisting of aminoplast resin, phenol-formaldehyde resin, and organic isocyanate having at least two isocyanate groups, and D) 0 to 10% by weight of additives and in the outer layers E) 70 to 99% by weight of lignocellulosic particles, fibers or mixtures thereof, F) 1 to 30% by weight of one or more binders selected from the group consisting of aminoplast resin, phenol-formaldehyde resin, and organic isocyanate having at least two isocyanate groups, and G) 0 to 10% by weight of additives in which 2% to 30% of the lignocellulose particles A) have been replaced by treated pulps, treated natural fibers, synthetic fibers or mixtures thereof, and also relates to their production and their use.
Abstract translation:本发明涉及具有芯和两个外层的木质纤维素材料,其包含,优选由芯A)30至98重量%的木质纤维素颗粒组成,B)0至25重量%的具有 堆积密度在10至150kg / m 3范围内,C)1至50重量%的选自氨基塑料树脂,酚醛树脂和具有至少两个异氰酸酯基的有机异氰酸酯的一种或多种粘合剂, 和D)0至10重量%的添加剂和外层E)70至99重量%的木质纤维素颗粒,纤维或其混合物,F)1至30重量%的一种或多种选自下组的粘合剂 由氨基塑料树脂,酚醛树脂和具有至少两个异氰酸酯基团的有机异氰酸酯组成,G)0至10重量%的添加剂,其中2%至30%的木质纤维素颗粒A)已经被处理的纸浆替代 ,经处理的天然纤维,合成纤维 或其混合物,并且还涉及它们的生产及其用途。