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US 7,255,904 B2Granted
Polyvinyl alcohol resin composition and multilayer packages
AssigneeKuraray Co., Ltd.
InventorsShinji Tai, Hiroyuki Shimo, Masakazu Nakaya, Mizuho Maeda
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Abstract
The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises 70 to 99.9 wt % of a polyvinyl alcohol resin (A) and 0.1 to 30 wt % of a thermoplastic resin (B) other than the polyvinyl alcohol resin (A), wherein the thermoplastic resin (B) has a carbon-carbon double bond and a functional group including a hetero atom, and an oxygen absorption rate of the resin composition is 0.001 ml/m2·day or more.
Claims13
A resin composition comprising
- 70 to 99.9 wt % of a polyvinyl alcohol resin (A),
- 0.1 to 30 wt % of a thermoplastic resin (B), which has a carbon-carbon double bond and a functional group including a hetero atom, and which is other than the polyvinyl alcohol resin (A), and
- a transition metal salt (C);
- wherein the thermoplastic resin (B) is dispersed in a matrix of the polyvinyl alcohol resin (A) in the form of particles,
- wherein the average particle size of the thermoplastic resin (B) is 10 μm or less, and
- wherein the oxygen absorption rate of the resin composition is 0.001 ml/m2·day or more.
3 more elements
Dependencies are inferred from the claim text.