摘要:
Composite lumber manufacturing apparatus and methods are disclosed that involve use of an extruder in connection with an extrudate speed detector providing an extruder speed indication that provides extrudate speed information to a servo-controlled cutter to cut the composite lumber as it is extruded without communicating imperfections to portions of still-elastic extrudate.
摘要:
The present invention relates to a system and method for directing a fluid through a die. One embodiment of the present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface that defines a hollow portion of an extrudate). In another embodiment of the present invention, a fluid may be directed through a die for forming a layer or portion of a product. More particularly, a fluid may be directed through a die to form an external or core layer of a product from a foamed or unfoamed material including, but not limited to, a cellulosic-filled plastic composite. For example, the present invention includes a system and method for through the die foaming of extruded products.
摘要:
The invention relates to a process for the production of cellulosic flat films whereby a solution of cellulose is extruded in an aqueous tertiary amine oxide by means of an extrusion die which has an extrusion gap whereby the solution is moulded in the shape of a film and the extruded solution is led via an air gap to a precipitation bath. The process in accordance with the invention is characterised in that an extrusion die is used which has an extrusion gap b of 220 nullmnullbnull280 nullm. Moreover, the invention relates to flat films, obtainable by the amine oxide process with a thickness d of less than 20 nullm, a width B of more than 30 cm, and a factor f of 65 or less, whereby f is defined as fnulld*(MD/TD), d is used in nullm and whereby MD stands for the tenacity of the film in the longitudinal direction (N/mm2) and TD for the tenacity of the film in the transverse direction (N/mm2).
摘要翻译:本发明涉及一种生产纤维素平膜的方法,其中纤维素溶液通过挤出模具挤出在叔胺氧化物水溶液中,该挤出模具具有挤出间隙,由此将溶液模塑成薄膜形状, 挤出溶液通过气隙引导至沉淀浴。 根据本发明的方法的特征在于使用具有220μm(b =280μm)的挤出间隙b的挤出模头。 此外,本发明涉及通过厚度d小于20μm,宽度B大于30cm,因子f为65以下的氧化胺工艺获得的平膜,其中f定义为f = d *(MD / TD),d用于母体,其中MD表示膜在纵向(N / mm 2)上的强度,TD代表膜在横向上的强度(N / mm 2)。
摘要:
The present invention relates to self-emulsifying formulations based on an active ingredient component and a formulation base with a lipid component and with a binder component and to the use of this formulation as dosage form in the life science sector. The invention also describes a process for producing self-emulsifying formulations by mixing the formulation components to form a plastic mixture and, where appropriate, to manufacture the formulations as dosage form advantageously by use of melt extrusion. The formulations spontaneously form emulsions in water or aqueous media.
摘要:
The present invention provides a method of using a medical tubing with a pump for administering measured amounts of a beneficial fluid over time to a patient. The method includes the steps of providing a material selected from the group consisting of ethylene homopolymers and ethylene copolymers, wherein the ethylene copolymers are obtained by copolymerizing ethylene with a comonomer selected from the group consisting of alkyl olefins, alkyl esters of a carboxylic acid and lower alkene esters of a carboxylic acid, or blends thereof; providing an extruder with an extrusion die; extruding the material into a medical tubing; providing a surface modifier solution; preheating the surface modifier solution to a temperature within the range of 30-95null C.; applying the preheated solution onto the tubing at it exits the extrusion die when the tubing is in a molten state or a semi-molten state; and pumping fluid through the tubing with the pump.
摘要:
The invention relates to a device for the production of cellulosic tubular films by extruding a solution of cellulose in an aqueous tertiary amine oxide into a precipitant present below the device, which device comprises an extrusion die having a substantially annular extrusion gap, wherein a supply duct for precipitant and a discharge duct for used precipitant are provided in the interior of the ring formed by the extrusion gap, characterized in that the supply duct (3) for the precipitant terminates below the discharge duct (4) for the used precipitant.
摘要:
Methods are provided in this invention to produce wood-like boards of polyvinylchloride, which are suitable for applications, such as graphic art, construction, furniture, etc. In one of the two embodiments disclosed in this invention, the wood-like polyvinyl chloride boards have smooth surface quality, a density below 0.95 g/cm3, good dimensional stability and strong abrasive resistance. These are produced by hot mixing, cold mixing, extrusion, calibration for quenching and subsequent cutting, to produce solid skin, foamed core products. In the other embodiment, the wood-like polyvinyl chloride boards have embossed surface quality, a density below 1.0 g/cm3, good dimensional stability and surface hardness. These are produced by hot mixing, cold mixing, extrusion and subsequent slow cooling with a roller system to produce embossed products.
摘要翻译:在本发明中提供了生产聚氯乙烯类木板的方法,其适合于诸如图形艺术,建筑,家具等的应用。在本发明公开的两个实施例之一中,木质聚氯乙烯板 表面质量光滑,密度低于0.95g / cm3,尺寸稳定性好,耐磨性好。 这些是通过热混合,冷混合,挤出,淬火和随后切割的校准,产生固体皮肤,泡沫核心产品。 在另一实施例中,木质聚氯乙烯板具有压花表面质量,密度低于1.0g / cm 3,尺寸稳定性和表面硬度良好。 这些是通过热混合,冷混合,挤出和随后用滚筒系统缓慢冷却以产生压花产品来生产的。
摘要:
A calendar device for rolling an extruded plastic material comprises at least two elongate rolls, which are arranged essentially in parallel to form the extruded material into a web-shaped material. One of the rolls is a cooling roll, which at least partially is immersed in a cooling bath to cool the roll together with the rolled material when abutting against the cooling roll.
摘要:
To provide a pellet which is formed from a composition comprising 5 to 65 parts by mass of recycled carbon fibers as a heated product of carbon fiber reinforced resin, and 0.05 to 25 parts by mass of a nonmetal salt-based flame retardant, relative to 100 parts by mass of a polycarbonate resin having a terminal hydroxyl group content of 150 to 800 ppm.