Uses of a method for the manufacture of foamed shaped polymer parts of liquid silicone rubber
A technology of foam forming and polymer, applied in the manufacture of tools, prostheses, applications, etc.
Inactive Publication Date: 2010-11-10
SULZER CHEMTECH AG
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- Abstract
- Description
- Claims
- Application Information
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However, the characteristic spectrum of LSR can only be tuned to a certain extent by raw materials
Method used
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Abstract
The invention discloses a foaming polymer component preparing method of film composition through liquid silicone rubber, which is characterized by the following reducing scleroscope hardness A by at least 10% in comparison with 5-7% bulk foaming degree and or moulded polymer component with non-foaming LSR; existing two separated components (A,B) pattern before disposing the mould; immersing components through foamer (C); guiding and blending components together under high pressure; casting moulded mixture in the cavity to foam under lower pressure; forming bulk through moulded polymer component.
Description
Use of a method for producing foam-shaped polymer parts of liquid silicone rubber technical field The present invention relates to the use of a method for the manufacture of foam formed polymer parts of liquid silicone rubber. The term LSR ("liquid silicone rubber") commonly used for such polymers is used hereinafter. Background technique LSR is a two-component polymer system that is individually non-reactive and can be purchased with predetermined tunable properties. The LSR component is pasty. These components are combined by specialized pumping, metering and mixing techniques into molded compositions, which can be processed on injection molding machines into shaped polymer parts. At elevated temperatures (at approximately 150-200° C.), LSR is a crosslinked silicone rubber, the so-called “high temperature crosslinked silicone rubber” (HTV silicone rubber). The cross-linking reaction of the polymer can be, for example, a platinum-catalyzed additive cross-linking, in wh...
Claims
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IPC IPC(8): B29C44/04C08J9/18B25G1/10A61F2/12A61F2/00A61J11/00F16F7/00B29C70/88B29K19/00B29L31/00
CPCB29C44/3446C08G77/06C08J9/02B29C44/04B29C44/16
Inventor S·哈比比-奈尼
Owner SULZER CHEMTECH AG