公开(公告)号：US6031027A

公开(公告)日：2000-02-29

申请号：US285167

申请日：1999-03-26

Applicant: Arne Syre ,  Carl-Gustaf Ek ,  Aimo Sahila ,  Svein Eggen ,  Rune Nygaard ,  Ilka Vaara ,  Kristen Kjeldsen

Inventor： Arne Syre ,  Carl-Gustaf Ek ,  Aimo Sahila ,  Svein Eggen ,  Rune Nygaard ,  Ilka Vaara ,  Kristen Kjeldsen

IPC: B29C47/76 ,  B29C47/78

CPC classification number: B29C47/76 ,  B29C47/0009 ,  B29C47/822

Abstract: A method of compounding a multimodal, preferably a bimodal polymer composition comprising a low molecular weight ethylene polymer and a high molecular weight ethylene polymer is described. The composition is compounded during a relatively long time at a low temperature which lies in a narrow temperature range including the melting point of the low molecular weight ethylene polymer. More particularly, the polymer composition is compounded, without addition of a beat transfer medium, in a temperature range from about 10.degree. C. below to about 10.degree. C. above the melting point of the low molecular weight ethylene polymer during a time of more than 10 seconds. The viscosity ratio between the ethylene polymers in said temperature range preferably is from about 5:1 to about 1:5.

Abstract translation: 描述了一种混合多峰，优选包含低分子量乙烯聚合物和高分子量乙烯聚合物的双峰聚合物组合物的方法。 该组合物在相当长的时间内在低温下复合，该低温位于包括低分子量乙烯聚合物的熔点的窄温度范围内。 更具体地说，聚合物组合物在不加入转印介质的情况下，在低分子量乙烯聚合物的熔点以下约10℃至约10℃的温度范围内，在更多的时间 超过10秒。 所述温度范围内的乙烯聚合物之间的粘度比优选为约5:1至约1:5。

公开(公告)号：US06299342B2

公开(公告)日：2001-10-09

申请号：US09749501

申请日：2000-12-26

Applicant: Svein Staal Eggen ,  Rune Nygaard

Inventor： Svein Staal Eggen ,  Rune Nygaard

IPC: B29B774

CPC classification number: B01F7/00641 ,  B01F5/0665 ,  B01F7/00541 ,  B01F7/02 ,  B29B7/325 ,  B29B7/421 ,  B29C47/0011 ,  B29C47/366

Abstract: A mixing device for compounding polymers by elongational deformation is described. The device has a casing (1) with an inlet (2) and an outlet (3). The casing has inner walls (4) defining an enclosure (5) which communicates with the inlet and the outlet. A core (6) is arranged in the enclosure and defines a mixing space (7) between the core (6) and the enclosure wall (4). The mixing space (7) is divided into several slits (9) and chambers (10) by protrusions (8). The device is characterised in that the enclosure (5) and the core (6) are concentrically arranged around a common axis (A) and are conically tapered towards the outlet (3), and that the protrusions (8) are circumferentially arranged on at least one of the core (6) and the enclosure wall (4) with a slit gap in the range from about 0.5 mm to about 10 mm and a width of the slit gap in the range of 0 to about 5 mm. Preferably, the enclosure wall (4) and the core (6) are adjustable relative to each other for adjustment of the slit gap. The mixing device is preferably incorporated in a compounding equipment comprising a melting extruder (17), the mixing device, a homogenizing extruder (18) and a pelletizer (19).

Abstract translation: 描述了通过伸长变形来混合聚合物的混合装置。 该装置具有带入口（2）和出口（3）的壳体（1）。 壳体具有限定与入口和出口连通的外壳（5）的内壁（4）。 核心（6）布置在外壳中并且在芯部（6）和封闭壁（4）之间限定了混合空间（7）。 混合空间（7）通过突起（8）分成几个狭缝（9）和室（10）。 该装置的特征在于，外壳（5）和芯（6）围绕公共轴线（A）同心地布置，并且朝向出口（3）呈锥形锥形，并且突起（8）周向地布置在 芯部（6）和封闭壁（4）中的至少一个具有在约0.5mm至约10mm范围内的狭缝间隙，并且狭缝间隙的宽度在0至约5mm的范围内。 优选地，外壳壁（4）和芯部（6）可相对于彼此调节，以调节狭缝间隙。 混合装置优选掺入包括熔融挤出机（17），混合装置，匀浆挤出机（18）和造粒机（19）的配混设备中。