Title:
液体シリコーンゴムからなる発泡成形ポリマー製品の製造方法の使用
Document Type and Number:
Japanese Patent JP5201802
Kind Code:
B2
Abstract:
A foamed shaped polymer part with liquid silicone rubber as the molding composition, is manufactured by conveying separately the two separate components of the molding composition under elevated pressure and impregnated with an expanding agent. The two streams are mixed together under elevated pressure and then, while reducing the pressure, the reactive mixture is injected into a heated cavity of a shape-giving tool in which the molding composition is simultaneously foamed with a cross-linking reaction. Manufacture of a foamed shaped polymer part with liquid silicone rubber (LSR) as the molding composition, comprises conveying separately in two streams the molding composition in the form of two separate components under elevated pressure. A continuous impregnation with an expanding agent is carried out in at least one of the components. The two streams are further led together and also mixed together under elevated pressure and finally, while reducing the pressure, the reactive mixture formed during mixing is injected into a heated cavity of a shape-giving tool (5) in which the molding composition is simultaneously foamed with a cross-linking reaction. The manufactured shaped polymer part has a degree of foaming of 5-70 vol.% and/or the Shore A hardness is reduced by >=10% in relation to a shaped polymer part of non-foamed LSR. The manufactured shaped polymer part forms a body which, with regard to an interaction with an activated object or with a further non-activated object and with regard to its physical characteristics, is designed in accordance with its purpose. An independent claim is also included for a shaped polymer part of foamed LSR.
Inventors:
Sasan Habibi-Naini
Application Number:
JP2006113929A
Publication Date:
June 05, 2013
Filing Date:
April 18, 2006
Export Citation:
Assignee:
Sulzer Chemtech Akchen Gesell Shaft
International Classes:
B29C45/00; C08J9/04; B29K105/04
Domestic Patent References:
| JP10245445A | ||||
| JP2003231769A |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Katsunori Ando
Hajime Asamura
Katsunori Ando