公开(公告)号：US11338490B1

公开(公告)日：2022-05-24

申请号：US17403039

申请日：2021-08-16

Applicant: BBS Corporation

Inventor： Henry G. Schirmer ,  Roger Blaine Trivette ,  Matthew G. Hampshire

IPC: B29C48/10 ,  B29C48/21 ,  B29C48/18 ,  B29C48/49 ,  B29C49/04 ,  B29C48/34 ,  B29C48/00 ,  B29C48/25 ,  B29L31/00 ,  B29L7/00

Abstract: A blown film coextrusion line includes a support frame, a plurality of extruders each mounted to the support frame and extending upward at an angle, and a downward facing blown film coextrusion die connected to distal ends of each of the plurality of extruders and receiving individual polymer streams from them. The blown film coextrusion line is compact and sturdy and eliminates much of the floor space and towered mounting structure that was required for conventional blown film coextrusion lines. A corresponding method of making a multilayer coextruded blown film is also provided.

公开(公告)号：US11173642B1

公开(公告)日：2021-11-16

申请号：US17226921

申请日：2021-04-09

Applicant: BBS Corporation

Inventor： Henry G. Schirmer ,  Roger Blaine Trivette ,  Matthew G. Hampshire

IPC: B29C48/265 ,  B29C48/49 ,  B29C48/10 ,  B29C48/18 ,  B29C48/00 ,  B29C55/28 ,  B29C48/21 ,  B29C48/25

Abstract: A blown film coextrusion line includes a support frame, a plurality of extruders each mounted to the support frame and extending upward at an angle, and a downward facing blown film coextrusion die connected to distal ends of each of the plurality of extruders and receiving individual polymer streams from them. The blown film coextrusion line is compact and sturdy and eliminates much of the floor space and towered mounting structure that was required for conventional blown film coextrusion lines.

公开(公告)号：US11440233B1

公开(公告)日：2022-09-13

申请号：US17672888

申请日：2022-02-16

Applicant: BBS Corporation

Inventor： Henry G. Schirmer ,  Roger Blaine Trivette ,  Matthew G. Hampshire

IPC: B29C48/10 ,  B29C48/21 ,  B29C48/49 ,  B29C48/34 ,  B29C49/04 ,  B29C48/18 ,  B29C48/25 ,  B29L31/00 ,  B29L7/00

Abstract: A blown film coextrusion line includes a support frame, a plurality of extruders each mounted to the support frame and extending upward at an angle, and a downward facing blown film coextrusion die connected to distal ends of each of the plurality of extruders and receiving individual polymer streams from them. The blown film coextrusion line is compact and sturdy and eliminates much of the floor space and towered mounting structure that was required for conventional blown film coextrusion lines. A corresponding method of making a multilayer coextruded blown film is also provided.

公开(公告)号：US20130243894A1

公开(公告)日：2013-09-19

申请号：US13752458

申请日：2013-01-29

Applicant: BBS CORPORATION

Inventor： HENRY G. SCHIRMER

IPC: B29C47/06

CPC classification number: B32B27/08 ,  B29C47/0021 ,  B29C47/0026 ,  B29C47/06 ,  B29C47/061 ,  B29C47/065 ,  B29C47/0828 ,  B29C47/263 ,  B29C47/56 ,  B29C47/707 ,  B32B7/02 ,  B32B27/306 ,  B32B27/32 ,  B32B27/325 ,  B32B2250/05 ,  B32B2250/24 ,  B32B2250/42 ,  B32B2307/514 ,  B32B2307/736 ,  Y10T428/218 ,  Y10T428/24967 ,  Y10T428/24975

Abstract: A layer sequence repeater module for a co-extrusion die includes a cell formed of a plurality of thin annular disks stacked on top of each other in an axial direction of the co-extrusion die. Each disk includes a plurality of openings aligned with openings in the adjacent disks, thus forming multiple inner and outer melt passages. At least one of the layer sequence repeater module includes at least one first cap disk, at least one second cap disk, at least one distribution disk, at least one repeater disk and at least one spreader disk. The layer sequence repeater module may be a separately assembled and individually removable module of the co-extrusion die. Alternatively or additionally, the layer sequence repeater module may be incorporated into a module of the co-extrusion die.

公开(公告)号：US11312057B2

公开(公告)日：2022-04-26

申请号：US16563599

申请日：2019-09-06

Applicant: BBS Corporation

Inventor： Henry G. Schirmer

IPC: B29C48/21 ,  B29C48/335 ,  B29C48/885 ,  B29C48/90 ,  B29C48/10 ,  B29C48/32 ,  B29C48/88 ,  B29C48/00 ,  B29L23/00

Abstract: A blown film line and process for making blown film, including an annular extrusion or coextrusion die, a plurality of nip rollers at a location remote from the annular die, a blown film bubble extruding from the annular die and traveling toward the nip rollers along a traveling path, an air cooling apparatus in the vicinity of the annular die, and a water cooling apparatus located downstream from the air cooling apparatus along the traveling path. The water cooling apparatus includes a wet porous material in direct contact with the blown film bubble and surrounding an outer circumference of the blown film bubble. The wet porous material continuously wipes the blown film bubble with water as the blown film bubble moves along the traveling path.

公开(公告)号：US11090853B2

公开(公告)日：2021-08-17

申请号：US16563629

申请日：2019-09-06

Applicant: BBS Corporation

Inventor： Henry G. Schirmer

IPC: B29C48/335 ,  B29C48/21 ,  B29C48/25 ,  B29C48/00 ,  B29L23/00

Abstract: A modular disk coextrusion die is formed of a plurality of cells stacked together. Each cell includes a symmetrical arrangement of thin annular disks, including a central routing disk and two distribution disks on both sides of the central routing disk. The distribution disks are oriented so that their respective distribution inlet openings oppose each other by about 180 degrees. The symmetrical arrangement permits each cell to process the melt streams in a manner that provides enhanced layer uniformity and bubble stability. By stacking several cells, blown films having up to several hundred layers can be made using twelve, twenty-four or more polymer melt streams.

公开(公告)号：US20200298459A1

公开(公告)日：2020-09-24

申请号：US16563599

申请日：2019-09-06

Applicant: BBS Corporation

Inventor： Henry G. Schirmer

IPC: B29C48/88 ,  B29C48/00 ,  B29C48/335 ,  B29C48/21

Abstract: A blown film line and process for making blown film, including an annular extrusion or coextrusion die, a plurality of nip rollers at a location remote from the annular die, a blown film bubble extruding from the annular die and traveling toward the nip rollers along a traveling path, an air cooling apparatus in the vicinity of the annular die, and a water cooling apparatus located downstream from the air cooling apparatus along the traveling path. The water cooling apparatus includes a wet porous material in direct contact with the blown film bubble and surrounding an outer circumference of the blown film bubble. The wet porous material continuously wipes the blown film bubble with water as the blown film bubble moves along the traveling path.

公开(公告)号：US08870561B2

公开(公告)日：2014-10-28

申请号：US13752458

申请日：2013-01-29

Applicant: BBS Corporation

Inventor： Henry G. Schirmer

IPC: B29C47/26 ,  B29C47/70 ,  B29C47/06 ,  B29C47/08 ,  B29C47/00 ,  B29C47/56

CPC classification number: B32B27/08 ,  B29C47/0021 ,  B29C47/0026 ,  B29C47/06 ,  B29C47/061 ,  B29C47/065 ,  B29C47/0828 ,  B29C47/263 ,  B29C47/56 ,  B29C47/707 ,  B32B7/02 ,  B32B27/306 ,  B32B27/32 ,  B32B27/325 ,  B32B2250/05 ,  B32B2250/24 ,  B32B2250/42 ,  B32B2307/514 ,  B32B2307/736 ,  Y10T428/218 ,  Y10T428/24967 ,  Y10T428/24975

Abstract: A layer sequence repeater module for a co-extrusion die includes a cell formed of a plurality of thin annular disks stacked on top of each other in an axial direction of the co-extrusion die. Each disk includes a plurality of openings aligned with openings in the adjacent disks, thus forming multiple inner and outer melt passages. At least one of the layer sequence repeater module includes at least one first cap disk, at least one second cap disk, at least one distribution disk, at least one repeater disk and at least one spreader disk. The layer sequence repeater module may be a separately assembled and individually removable module of the co-extrusion die. Alternatively or additionally, the layer sequence repeater module may be incorporated into a module of the co-extrusion die.

Abstract translation: 用于共挤出模头的层序转发器模块包括由在共挤出模头的轴向彼此堆叠的多个薄环形盘形成的单元。 每个盘包括与相邻盘中的开口对准的多个开口，从而形成多个内部和外部熔体通道。 层序列转发器模块中的至少一个包括至少一个第一盖盘，至少一个第二盖盘，至少一个分配盘，至少一个中继器盘和至少一个扩展盘。 层序转发器模块可以是共挤出模头的单独组装和单独移除的模块。 或者或另外，层序转发器模块可以并入到共挤出模具的模块中。