摘要 |
A polymer blend foam having smooth skin and/or an open-cell content of at least 20 volume percent, a crosslinked gel content of no greater than 10 percent, a minimum cross-sectional area of at least 1000 mm<2>, and a density of no greater than 250 kg/m<3>. The blend includes (A) a substantially random interpolymer having polymerized therein (1) a vinyl or vinylidene aromatic monomer and/or sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, and (2) one or more of ethylene and a C3-20 aliphatic alpha -olefin; and (B) an olefin polymer based on one or more of ethylene, C3-20 aliphatic alpha -olefins, and C3-20 aliphatic alpha -olefins containing polar groups. The olefin polymer (B) lacks any of the vinyl or vinylidene aromatic monomers found in (A).
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申请人 |
THE DOW CHEMICAL COMPANY;CHAUDHARY, BHARAT, I.;TUSIM, MARTIN, H.;BARRY, RUSSELL, P. |
发明人 |
CHAUDHARY, BHARAT, I.;TUSIM, MARTIN, H.;BARRY, RUSSELL, P. |