发明名称 |
POLYSTRYENE FOAMS INCORPORATING NANOGRAPHITE AND HFC-134 |
摘要 |
<p>Polymeric foam and polymeric foam products that contain a foamable polymer material, nanographite, and 1,1,2,2-tetrafluoroethane (HFC-134) are provided. Preferably, the foamable polymer material is an alkenyl aromatic polymer material. The foam is free of other conventional blowing agents typically utilized in preparing a foamed product. The nanographite is not chemically or surface modified and is preferably compounded in a polyethylene methyl acrylate copolymer (EMA), which is used both as a medium and a carrier for the nanographite. The nanographite may be compounded in the polymer in an amount up to 60% loading. In addition, the nanographite acts as a nucleating agent, R-value enhancer, infrared attenuating agent, lubricant, UV absorber, and process aid. The inventive foam composition produces extruded foams that have R-values that are equal to or better than conventional extruded foams produced with 1-chloro-1,1-difluoroethane (HCFC-142b). The foamed products are desirably made by a conventional extrusion process.</p> |
申请公布号 |
WO2008119059(A1) |
申请公布日期 |
2008.10.02 |
申请号 |
WO2008US58543 |
申请日期 |
2008.03.28 |
申请人 |
OWENS CORNING INTELLECTUAL CAPITAL, LLC;DELAVIZ, YADOLLAH;BREINDEL, RAYMOND, M.;WEEKLEY, MITCHELL, Z.;LOH, ROLAND;CHOUDHARY, MANOJ |
发明人 |
DELAVIZ, YADOLLAH;BREINDEL, RAYMOND, M.;WEEKLEY, MITCHELL, Z.;LOH, ROLAND;CHOUDHARY, MANOJ |
分类号 |
B29C44/02;B29C44/50;C08J3/22;C08J9/00;C08J9/14;C08K3/04;E04C2/20 |
主分类号 |
B29C44/02 |
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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