Open cell foamed articles including silane-grafted polyolefin resins
AssigneeSentinel Products Corp.
InventorsMatthew L. Kozma, John D. Bambara, Robert F. Hurley
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Abstract
Open cell foamed articles including silane-grafted single-site inititiated polyolefin resins are described. The single-site initiated olefin polymer resin can be a polyethylene, a copolymer of ethylene, a C3-C20 alpha-olefin, or a copolymer of ethylene, a C3-C20 alpha-olefin and a C4-C20 diene. The open cell foamed articles have good cushioning properties and can be non-allergenic.
Claims30
An open cell foamed article comprising a silane-grafted single-site initiated polyolefin resin, wherein the foamed article has greater than 10 percent open cells and the single-site initiated polyolefin resin is a polyethylene, a copolymer of ethylene and a C3-C20 alpha-olefin, or a copolymer of ethylene, a C3-C20 alpha-olefin and a C4-C20 diene.
A method of making an open cell foamed article comprising the steps of:
- providing a mixture including silane-grafted single-site initiated polyolefin resin and a foaming agent, wherein the single-site initiated polyolefin resin is a polyethylene, a copolymer of ethylene and a C3-C20 alpha-olefin, or a copolymer of ethylene, a C3-C20 alpha-olefin and a C4-C20 diene;
- partially cross-linking the mixture;
- and
- expanding the mixture to form an open cell foamed article having greater than 10 percent open cells.
Dependencies are inferred from the claim text.