0370802-A1 is referenced by 20 patents.

An oxygen absorbing sheet is obtained by molding a resin composition comprising from 15 to 70% by weight of a thermoplastic resin and from 30 to 85% by weight of an oxygen absorbent into a sheet having a thickness of from 10 mu m to 5 mu m and stretching the sheet at least uniaxially at a stretch ratio of from 1.5 to 8.0. The absorbent is an iron powder, preferably of particle size 0.1-100 mu m and preferably with a halide, carbonate, sulfate or hydroxide in amount of 0.1 to 10 wt % of the total absorbent. The resin is preferably a copolymer of ethylene and a C4-12 alpha -olefin, a copolymer of ethylene and/or butene-1 and propylene, a copolymer of ethylene and vinyl acetate and/or a (meth)-acrylic ester, or a metal salt of a copolymer of ethylene and acrylic acid.; The composition can be shaped by extrusion or calendering and stretched by roll or tubular stretching uniaxially or biaxially (successively or simultaneously). The oxygen absorbing sheet is easy to handle, and its oxygen absorption capacity is controllable as desired.

Oxygen absorbing thermoplastic resin sheet.
Application Number
EP19890312152 19891122
Publication Number
0370802 (A1)
Application Date
November 22, 1989
Publication Date
May 30, 1990
Sugiyama Masashi
Kume Takanori
Kawakita Toshio
Nakae Kiyohiko
Sumitomo Chemical Co
B65D 81/24
C08K 03/00
C08J 05/18
B29C 55/00
C08K 03/08
C08J 05/18
B29C 55/00
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