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    Method for the continuous production of an endless string of polyurethane reactive plastic material
    2.
    发明授权
    Method for the continuous production of an endless string of polyurethane reactive plastic material 有权

    公开(公告)号：US09616599B2

    公开(公告)日：2017-04-11

    申请号：US14487443

    申请日：2014-09-16

    Applicant: Hennecke GmbH

    Inventor： Martin Schamberg ,  Martin Krupp

    IPC: B29C41/28 ,  B29C41/00 ,  B29C41/50 ,  B29C44/28 ,  B29K75/00 ,  B29L7/00

    CPC classification number: B29C41/28 ,  B29C41/003 ,  B29C41/50 ,  B29C44/28 ,  B29K2075/00 ,  B29L2007/008

    Abstract: A method for continuous production of an endless string of polyurethane reactive plastic material including, a) conveying the reactive components to a mixer in a metered manner, b) mixing the reactive components into a reactive mixture, c) subsequently discharging the reactive mixture and d) coating a first sheet section made from a plane, flexible material which is conveyed continuously in a transporting direction with the reactive mixture. Further including: e) guiding the first sheet section across a guiding element, which has a concave section and a flat section which follows the concave section in the transporting direction; f) feeding two lateral sheet sections to the first sheet section, wherein the feeding occurs into the two lateral end sections of the first sheet section; g) merging the two lateral sheet sections and the first sheet section so that a bowl-shaped structure is formed for reception of the reactive mixture.

    METHOD FOR THE CONTINUOUS PRODUCTION OF AN ENDLESS STRING OF POLYURETHANE REACTIVE PLASTIC MATERIAL
    3.
    发明申请
    METHOD FOR THE CONTINUOUS PRODUCTION OF AN ENDLESS STRING OF POLYURETHANE REACTIVE PLASTIC MATERIAL 有权
    连续生产聚氨酯反应性塑料材料的无限制方法

    公开(公告)号：US20150076749A1

    公开(公告)日：2015-03-19

    申请号：US14487443

    申请日：2014-09-16

    Applicant: Hennecke GmbH

    Inventor： Martin SCHAMBERG ,  Martin KRUPP

    IPC: B29C41/28 ,  B29C41/00 ,  B29C41/50

    CPC classification number: B29C41/28 ,  B29C41/003 ,  B29C41/50 ,  B29C44/28 ,  B29K2075/00 ,  B29L2007/008

    Abstract: A method for continuous production of an endless string of polyurethane reactive plastic material including, a) conveying the reactive components to a mixer in a metered manner, b) mixing the reactive components into a reactive mixture, c) subsequently discharging the reactive mixture and d) coating a first sheet section made from a plane, flexible material which is conveyed continuously in a transporting direction with the reactive mixture. Further including: e) guiding the first sheet section across a guiding element, which has a concave section and a flat section which follows the concave section in the transporting direction; f) feeding two lateral sheet sections to the first sheet section, wherein the feeding occurs into the two lateral end sections of the first sheet section; g) merging the two lateral sheet sections and the first sheet section so that a bowl-shaped structure is formed for reception of the reactive mixture.

    Abstract translation: 一种用于连续生产聚氨酯反应性塑料材料的环形绳的方法，包括：a）以计量方式将反应性组分输送到混合器中，b）将反应性组分混合成反应性混合物，c）随后将反应混合物排出，d ）涂覆由平面制成的第一片段，柔性材料在反应性混合物的输送方向上连续输送。 还包括：e）引导所述第一片段横跨引导元件引导，所述引导元件具有在所述输送方向上与所述凹部相邻的凹部和平坦部， f）向所述第一片段供给两个横向片段，其中所述进给发生在所述第一片段的两个横向端部中; g）将两个侧片部分和第一片部分合并，形成碗形结构以接收反应混合物。

    Apparatus for continuously foaming a polyimide powder
    5.
    发明授权
    Apparatus for continuously foaming a polyimide powder 失效
    用于连续发泡聚酰亚胺粉末的装置

    公开(公告)号：US5509795A

    公开(公告)日：1996-04-23

    申请号：US235598

    申请日：1994-04-29

    Applicant: Daniel E. Near ,  Royce M. Feagans ,  Ward T. Hobert

    Inventor： Daniel E. Near ,  Royce M. Feagans ,  Ward T. Hobert

    IPC: B29C33/02 ,  B29C35/04 ,  B29C35/08 ,  B29C44/28 ,  B29C44/34 ,  B29C44/60

    CPC classification number: B29C44/3415 ,  B29C44/28 ,  B29C2035/0822 ,  B29C33/02 ,  B29C35/045 ,  B29C44/60 ,  Y10S521/915

    Abstract: An apparatus for continuously foaming a polyimide prepolymer powder which is not susceptible to heating by microwave energy utilize a preheated conveyor belt to heat the powder in contact with and adjacent the surface of the conveyor belt to commence the reaction and foaming of the powder as it enters an oven which further heats the powder by convection and infrared radiation to form a continuous foam bun. The conveyor belt is cooled as it exits the oven to cool a bottom surface of the foam product to enable the foam product to be removed from the conveyor before interior portions of the foam product have cooled. Foam adhering to the conveyor belt, after the product has been removed, is cleaned from the conveyor belt, collected and mixed with and used as a filler in the prepolymer powder used in the process. In addition the mass of the powder entering the oven and the density and degree of cure of the foam bun exiting the oven are monitored to continuously control the process.

    Abstract translation: 用于连续发泡不易受微波能量加热的聚酰亚胺预聚物粉末的设备利用预热传送带来加热与输送带表面接触并邻近传送带表面的粉末，以在粉末进入时开始反应和发泡 烘箱，其通过对流和红外辐射进一步加热粉末以形成连续的泡沫块。 输送带在离开烘箱时被冷却以冷却泡沫产品的底部表面，以使泡沫产品在泡沫产品的内部部分已经冷却之前从输送机移除。 泡沫粘附在输送带上，产品已经取出后，从输送带上清洗，收集并混合，并用作该过程中使用的预聚物粉末中的填料。 此外，监测进入烘箱的粉末的质量以及离开烘箱的泡沫块的密度和固化程度，以连续地控制该过程。

    Apparatus for continuous production of rectangular cross-sectioned foamed plastic bunstock
    6.
    发明授权
    Apparatus for continuous production of rectangular cross-sectioned foamed plastic bunstock 失效
    用于连续生产矩形横截面发泡塑料砧板的设备

    公开(公告)号：US4005958A

    公开(公告)日：1977-02-01

    申请号：US560713

    申请日：1975-03-21

    Applicant: Lawrence C. Porter

    Inventor： Lawrence C. Porter

    IPC: B29C44/28 ,  B29D27/04

    CPC classification number: B29C44/28

    Abstract: Apparatus and method are described for improved production of foamed bunstock in continuous length. A generally U-shaped moving mold is utilized within which a thermosetting foam mix is deposited and the bunstock is then formed as a continuous block. This moving mold is configured along a critical portion of its length to conform as closely as practical to the inverted mirror image of the profile defined by the characteristic curve of percent of foam rise as a function of time for any selected foam mix composition. A weir arrangement is employed to control the travel of foam mix while this is still highly liquid. The objective is to maintain a condition of hydrostatic balance throughout the body of developing foam from the point of mix lay down to the point of foam gellation. Features of the invention reside in the concept of and means for changing the weir configuration and mold profile to achieve that condition of operation in which various forces acting on and in the developing foam mix produce the aforesaid hydrostatic equilibrium. By so doing greater flexibility is achieved in terms of ability to adapt a given production installation to handle different foam compositions, production rates, bunstock dimensions and shapes, with better uniformity of foam density and cell isotropicity than heretofore commercially practical.

    Abstract translation: 描述了用于改进生产连续长度的发泡砧板的装置和方法。 使用通常为U形的移动模具，其中沉积热固性泡沫混合物，然后将该砧板形成为连续块。 该移动模具沿着其长度的临界部分构造，以与由任何所选择的泡沫混合组合物作为时间的函数的泡沫上升百分比的特征曲线限定的轮廓的倒置镜像一致。 使用堰布置来控制泡沫混合物的行进，而这仍然是高度液体的。 目的是保持从发泡泡沫的整个身体的静水平衡状态，从混合点到泡沫胶凝点。 本发明的特征在于用于改变堰结构和模具轮廓以实现操作条件的概念和手段，其中作用于和在发泡泡沫混合物中和其中的各种力产生上述静水平衡。 通过这样做，在给定的生产设备适应不同的泡沫组合物，生产率，料筒尺寸和形状的能力方面实现了更大的灵活性，具有比迄今商业上实用的更好的泡沫密度均匀性和细胞各向同性。

    Method for producing polyurethane foam blocks which have flat upper surfaces
    7.
    发明授权
    Method for producing polyurethane foam blocks which have flat upper surfaces 失效
    生产具有平坦上表面的聚氨酯泡沫块的方法

    公开(公告)号：US3719734A

    公开(公告)日：1973-03-06

    申请号：US3719734D

    申请日：1969-10-17

    Applicant: UNIFOAM AG

    Inventor： PETZETAKIS N

    IPC: B29C44/28 ,  B29D27/00

    CPC classification number: B29C44/28 ,  B29L2007/00 ,  Y10S264/14 ,  Y10S264/84

    Abstract: A PROCESS AND APPARATUS FOR PRODUCING POLYMERIC FOAM BLOCK (KNOWN AS "BUNS") WITH A SUBSTANTIALLY FLAT UPPER SURFACE. A MIXTURE OF, E.G. POLYURETHANE, FOAM-FORMING REACTANTS IS MOVED ALONG A TROUGH-SHAPED CONVEYOR WHERE THE REACTANTS ARE CONFINED DURING FOAMING BY SIDE AND BOTTOM SURFACES MOVING WITH THE EXPANDED FOAM MATERIAL. THE SIDE SURFACES OF THE CONVEYOR INCLUDE THIN FLEXIBLE LINING MATERIAL WHICH MOVES DOWNSTREAM WITH THE EXPANDING FOAM MATERIAL AND IS SIMULTANEOUSLY MOVED UPWARDLY IN THE FOAMING REGION ALONG WITH THE RISING SURFACE OF THE FOAM MATERIAL SO AS TO MAINTAIN THE SIDE MARGINS OF THE UPPER SURFACE OF THE FOAM AT SUBSTANTIALLY THE SAME HEIGHT AS THE CENTRAL PORTION OF THE UPPER SURFACE OF THE FOAM. THE DOWNSTREAM AND UPWARD MOVEMENT OF THE LINING MATERIAL IS AFFECTED BY MECHANISM WHICH IS ADJUSTABLE TO COMPENSATE FOR VARIATIONS IN THE LOCATION AND RATE OF EXPANSION OF THE FOAM SO AS TO ENSURE THAT THE UPPER SURFACE OF THE FOAM IS MAINTAINED FLAT.

    Method of forming rectangular cross-section foam polyurethane by vibrating the sides of the forming conveyor
    8.
    发明授权
    Method of forming rectangular cross-section foam polyurethane by vibrating the sides of the forming conveyor 失效
    通过振动形成输送机的边缘形成矩形交叉泡沫聚氨酯的方法

    公开(公告)号：US3639550A

    公开(公告)日：1972-02-01

    申请号：US3639550D

    申请日：1968-08-19

    Applicant: METZELER AG

    Inventor： DARMOCHWAL HEINZ

    IPC: B29C44/28 ,  B29C44/30 ,  B29D27/04

    CPC classification number: B29C44/30 ,  B29C44/28 ,  B29L2007/00 ,  Y10S264/84

    Abstract: A CONTINUOUS SLAB OF FOAM MATERIAL IS PRODUCED BY POURING FREE-RISING POLYURETHANE FOAM INTO A CONFINING PATH DEFINED BY A LINER OF RELEASE PAPER WHICH TRAVELS WITH A SUBSTANTIALLY HORIZONTAL BOTTOM WALL BETWEEN TWO UPSTANDING SIDE WALLS TO CONVEY THE LOAF THROUGH A FOAMING ZONE WHERE THE LOAF RISES TO FORM A SLAB. THE SIDE WALLS ARE VIBRATED TO PREVENT ADHERENCE TO RISING LOAF TO THE LINER IN REGIONS ADJACENT TO THE SIDE WALLS AND TO THUS INSURE THE FORMATION OF A SLAB HAVING A SUBSTANTIALLY REC-

    TANGULAR CROSS-SECTIONAL OUTLINE. THE MEANS FOR VIBRATING THE SIDE WALLS MAY INCLUDE CAMS AND FOLLOWERS, CRANK DRIVES, ECCENTRICS OR ANALOGOUS VIBRATING DEVICES WHICH IMPART TO SIDE WALLS VERTICAL VIBRATORY MOVEMENTS AT RIGHT ANGLES TO THE DIRECTION OF ADVANCE OF THE LOAF.

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