- Patent Title: Sealing compounds with scavenger materials of small particle size
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Application No.: US15496697Application Date: 2017-04-25
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Publication No.: US10450448B2Publication Date: 2019-10-22
- Inventor: William David Coulter , Rüdiger Wittenberg
- Applicant: Actega DS GmbH
- Applicant Address: DE Bremen
- Assignee: Actega DS GmbH
- Current Assignee: Actega DS GmbH
- Current Assignee Address: DE Bremen
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: C08L23/06
- IPC: C08L23/06 ; C08L23/04 ; C08L23/08 ; C08L23/10 ; C08L23/14 ; C08L53/00 ; C08L53/02 ; C08K3/30 ; C08K5/01
Abstract:
PVC-free polymer compound for producing seals containing scavengers for screw caps, in particular twist crown corks, characterized in that the Shore A hardness of the polymer compound lies between 50 and 90 and, in a compression set test analogous to ASTM D395-97, Method B, the polymer compound has a compression set of between 30% and 90% after it has been left for 22 hours at 70° C. under a compression of 25%.
Public/Granted literature
- US20170327673A1 Sealing Compounds with Scavenger Materials of Small Particle Size Public/Granted day:2017-11-16
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