Number | Date | Country | Kind |
---|---|---|---|
3904370 | Feb 1989 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4727093 | Allen et al. | Feb 1988 | |
4874796 | Allen et al. | Oct 1989 | |
4927858 | Joyce et al. | May 1990 | |
4927859 | Weber et al. | May 1990 |
Number | Date | Country |
---|---|---|
0241258 | Oct 1987 | EPX |
3220856 | Dec 1982 | DEX |
Entry |
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Patent Abstracts of Japan, JP-A-52 101-268, Aug. 25, 1977, "Heat Resistant Foams Obtained Using Controlled Amounts of Foaming Agent From Styrene (Co)Polymer and Polyphenylene Ether Resin Mixture". |