Method for producing multi-layer polyethylene resin foam sheet
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United States of America Patent
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Mar 14, 2017
Grant Date -
Mar 13, 2014
app pub date -
Aug 23, 2013
filing date -
Sep 13, 2012
priority date (Note) -
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Abstract
A method for producing a multi-layer foam sheet having a foam layer and a resin layer laminated on at least one side of the foam layer, includes coextruding a foamable molten resin composition which contains a low density polyethylene and a physical blowing agent and a molten resin composition which contains 80 to 20% by weight of a specific ethylene-propylene random copolymer and 20 to 80% by weight of a specific polyethylene resin so that the foamable molten resin composition forms the foam layer and the molten resin composition forms the resin layer.
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- B29K:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, ....
- B29L:INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RE....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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