Producing a bellows
AssigneeGKN Driveline International GmbH
InventorsThorsten Stresewski, Joachim Wette, Frank Reher, Bernd Bender
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Abstract
Bellows, for example, a roll bellows and a folding bellows, can be produced that can be used at higher temperatures such as those prevailing in modern articulated constructions, using a mixture comprising at least one thermoplastic elastomer selected from the group of copolysters with a hard segment and a soft segment, wherein in a first step the at least one thermoplastic elastomer is mixed with approximately 0.8 wt. % to approximately 5 wt. % triallyl isocyanurate, based on the total amount of the mixture; in a second step the bellows is produced; and in a third step, the bellows is exposed to an ionizing irradiation in a range from approximately 140 kGy to approximately 350 kGy.
Claims18
A method for producing a bellows from a mixture comprising at least one thermoplastic elastomer selected from a group of copolyesters that have a hard segment and a soft segment, the method comprising:
- mixing the at least one thermoplastic elastomer with 0.8% to 5% triallyl isocyanurate with respect to the overall weight of the mixture;
- producing the bellows;
- and
- exposing the bellows to ionizing radiation in a range of 140 kGy to 350 kGy, wherein the bellows after the exposure is thermoplastic.
A bellows, made from a mixture comprising at least one thermoplastic elastomer selected from a group of copolyesters that have a hard segment and a soft segment, the bellows being made by:
- mixing the at least one thermoplastic elastomer with 0.8% to 5% triallyl isocyanurate with respect to the overall weight of the mixture;
- producing the bellows;
- and
- exposing the bellows to ionizing radiation in a range of 140 kGy to 350 kGy, wherein the bellows after the exposure is thermoplastic.
Dependencies are inferred from the claim text.