发明名称 |
Expanded particles of modified polyethylene and foamed articles obtained therefrom |
摘要 |
Expanded particles obtained by a method including the steps of: providing unexpanded particles formed of a polyethylene resin; impregnating the unexpanded particles with a liquid containing a polymerizable monomer including an acrylic monomer, and optionally a styrenic monomer; subjecting the impregnated polymerizable monomer to polymerization conditions so that at least a portion of the polymerizable monomer is grafted on the polyethylene resin to obtain modified polyethylene particles; and subjecting the modified polyethylene particles to an expansion treatment. Further expansion of the expanded particles within a mold gives a foamed article suitable for use as a consumable pattern in full mold casting.
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申请公布号 |
US4769393(A) |
申请公布日期 |
1988.09.06 |
申请号 |
US19860926521 |
申请日期 |
1986.11.04 |
申请人 |
JAPAN STYRENE PAPER CORP |
发明人 |
KUWABARA, HIDEKI;NAITO, MASATO |
分类号 |
C08F255/02;C08J9/18;C08J9/228;(IPC1-7):C08J9/18 |
主分类号 |
C08F255/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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