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US 12,637,549 B2Granted
Oxygen absorbing resin composition, oxygen absorbing film, oxygen absorbing multi-layer film, and cover material
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsKeisuke Watanabe, Yoshiki Itou
Life of this patent
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Abstract
An oxygen absorbing resin composition containing a polyolefin, an iron powder, titanium oxide, and calcium oxide, a content of the iron powder being from 10 to 50 mass % in the oxygen absorbing resin composition, a mass ratio of the titanium oxide to the iron powder [titanium oxide/iron powder] being from 0.1 to 0.5, and a mass ratio of the calcium oxide to the iron powder [calcium oxide/iron powder] being from 0.1 to 0.5.
Claims13
An oxygen absorbing resin composition comprising:
- a linear low density polyethylene;
- an iron powder having a metal iron content of 95 mass % or more;
- titanium oxide;
- and
- calcium oxide,
- a content of the iron powder being from 18 to 25 mass % in the oxygen absorbing resin composition,
- a mass ratio of the titanium oxide to the iron powder [titanium oxide/iron powder] being from 0.2 to 0.3,
- a mass ratio of the calcium oxide to the iron powder [calcium oxide/iron powder] being from 0.1 to 0.5, and
- a mass ratio of the calcium oxide to the titanium oxide [calcium oxide/titanium oxide] being from 0.4 to 1.6,
- wherein the iron powder is at least one selected from the group consisting of reduced iron powder, sponge iron powder, sprayed iron powder, iron grinding powder, electrolytic iron powder, and crushed iron.
7 more elements
Dependencies are inferred from the claim text.