Number | Name | Date | Kind |
---|---|---|---|
3232903 | Schmidle et al. | Feb 1966 | |
3668127 | Machida et al. | Jun 1972 | |
3745136 | Huhn et al. | Jul 1973 | |
3985703 | Ferry et al. | Oct 1976 | |
4199486 | Boessler et al. | Apr 1980 |
Entry |
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Polymer Handbook, Ed. Brandrup et al., pp. III-62-III-72. |
Product Licensing Index, "Research Disclosures", Dec. 1971. |