Manufacture of flowable composite particulate material
    11.
    发明授权
    Manufacture of flowable composite particulate material 失效
    可流动复合颗粒材料的制造

    公开(公告)号:US4244903A

    公开(公告)日:1981-01-13

    申请号:US843699

    申请日:1977-10-19

    申请人: Rolf Schnause

    发明人: Rolf Schnause

    CPC分类号: B29B9/14 B29B9/065

    摘要: The moldings are manufactured from synthetic thermoplastics, from non-thermoplastic fibrous flakes, which are available in an uncoated or incompletely coated state, and from optionally admixed fillers. The fibrous flakes and the thermoplastic material are mixed under the action of pressure and heat to produce a precompacted composite material, in which the fibrous flake material constitutes about 65% or more by volume of the composite material, and the latter is then extruded and is subsequently finally shaped and finally compacted at the same time. To manufacture the precompacted composite material, the non-thermoplastic materials consisting of the fibrous flake material and of any fillers, as well as synthetic thermoplastics which are adapted to adhere to the fibrous flake material, are subjected to a pretreatment, by which the thermoplastic and non-thermoplastic materials are extruded at elevated temperature and are thus bonded together and the extrusions are subsequently chopped to form a flowable composite particulate material.

    摘要翻译: 模制品由合成热塑性塑料制成,来自非热塑性纤维薄片,其可以未涂布或不完全涂覆的状态,以及可选地混合的填料。 在压力和热力的作用下将纤维状薄片和热塑性材料混合以产生预复合复合材料,其中纤维薄片材料构成复合材料体积的约65%或更多,然后将其挤出,并且是 随后最终形成并最终压实在同一时间。 为了制造预制复合材料,将由纤维状薄片材料和任何填料组成的非热塑性材料以及适于粘附到纤维薄片材料上的合成热塑性塑料进行预处理,通过该预处理,热塑性塑料和 非热塑性材料在升高的温度下被挤出并因此粘合在一起,然后将挤出物切碎以形成可流动的复合颗粒材料。

    Flexible foam bonding process
    12.
    发明授权
    Flexible foam bonding process 失效
    柔性泡沫粘接工艺

    公开(公告)号:US4243625A

    公开(公告)日:1981-01-06

    申请号:US95116

    申请日:1979-11-16

    申请人: Russell W. Burge

    发明人: Russell W. Burge

    IPC分类号: B29B17/00 B29C67/20 B29C29/00

    摘要: The instant invention is directed to a novel process for the production of bonded foam, and particularly polyurethane foam scrap. The process allows for the production of a high quality rebonded product. Significant improvements are seen in the quality of the product, reduction in density, reduction in scrap loss, elimination of density variations in the molded product and overall product consistency.

    摘要翻译: 本发明涉及用于生产粘结泡沫,特别是聚氨酯泡沫废料的新方法。 该过程允许生产高质量的重新粘合的产品。 在产品的质量,密度的降低,废料损失的减少,成型产品的密度变化的消除和整体产品的一致性方面都有显着的改进。

    Method for reprocessing scrap from fabric reinforced thermoplastic sheet
    14.
    发明授权
    Method for reprocessing scrap from fabric reinforced thermoplastic sheet 失效
    从织物增强热塑性片材再加工废料的方法

    公开(公告)号:US4158646A

    公开(公告)日:1979-06-19

    申请号:US677102

    申请日:1976-04-15

    摘要: A method for reclaiming scrap produced in the manufacture of fabric reinforced thermoplastic resin sheet material so that the scrap may be worked, banded and calendered or extruded to form a finished product. The reclaiming or reworking of the material is made possible by first tearing the fabric fibers embedded in the thermoplastic resin into discrete finite lengths, mixing the resulting fibers and resin and forming the mixture into a new sheet of thermoplastic resin material suitable for many commercial uses. The tearing of the textile fibers embedded in the scrap into minute lengths is accomplished by applying shearing force to the opposite surfaces of the segments of scrap, in directions parallel to the surfaces. This is accomplished, for example, in a Banbury mixer or in a tight cold mill. The shearing force causes stretching and ultimate rupturing and tearing of the fibers progressively throughout the entire surface area of the scrap segment. The fibers in the resulting mixture are of minute length and are normally not visible in the resulting finished product.

    摘要翻译: 一种用于回收在织物增强热塑性树脂片材制造中产生的废料的方法,使得废料可以加工,带状和压延或挤出以形成成品。 通过首先将嵌入在热塑性树脂中的织物纤维撕裂成不连续的有限长度,将所得纤维和树脂混合并将混合物形成适合于许多商业用途的新型热塑性树脂材料,可以实现材料的回收或再加工。 通过在平行于表面的方向上将剪切力施加到废料段的相对表面上来实现嵌入在废料中的纺织纤维到微小长度的撕裂。 这是通过例如班伯里密炼机或紧密冷轧机来实现的。 剪切力在废料段的整个表面积处引起纤维的拉伸和最终破裂和撕裂。 所得混合物中的纤维具有微小的长度,并且在所得成品中通常不可见。

    Process for making extruded panel product
    15.
    发明授权
    Process for making extruded panel product 失效
    制造挤出面板产品的工艺

    公开(公告)号:US4145389A

    公开(公告)日:1979-03-20

    申请号:US826943

    申请日:1977-08-22

    申请人: Teddy V. Smith

    发明人: Teddy V. Smith

    摘要: A process for manufacturing a continuously extruded running length of construction paneling from continuous flow sources of thermoplastic material bits and a mixture thereof with cellulose fiber bits, by successively fusing and pressure rolling even-distribution layers of thermoplastic bits, a mixture of thermoplastic and cellulose fiber bits, and, again thermoplastic bits, in respective ones of three cascaded oven chambers through which a material carrying conveyor is selectively advanced. Raw material distribution operates in concert with intermittent conveyor advance motions to provide even layer material distribution from the continuous flow sources, with each distributed layer being exposed to an oven environment to facilitate thermoplastic fusion during the time between intermittent conveyor advances and prior to subsequent pressure rolling.

    Polyamide gel removal
    16.
    发明授权
    Polyamide gel removal 失效
    聚酰胺凝胶去除

    公开(公告)号:US4070425A

    公开(公告)日:1978-01-24

    申请号:US660853

    申请日:1976-02-24

    申请人: T. A. Wood

    发明人: T. A. Wood

    IPC分类号: C08K5/05 B29C29/00 B08B3/08

    CPC分类号: C08K5/05

    摘要: Gelled polyamides are contacted with organic hydroxyl group-containing compounds to so modify the physical nature of the gels as to permit their flushing from process equipment.

    摘要翻译: 胶凝的聚酰胺与含有机羟基的化合物接触,以改变凝胶的物理性质,以允许其从工艺设备冲洗。