초록 ▼

Perfluoroelastomer compositions comprising perfluoroelastomers having copolymerized units of tetrafluoroethylene, a perfluoro(vinyl ether), and a nitrile-containing cure site monomer are cured with certain nitrogen-containing nucleophilic compounds. The nucleophilic compounds also act as dual curati

Perfluoroelastomer compositions comprising perfluoroelastomers having copolymerized units of tetrafluoroethylene, a perfluoro(vinyl ether), and a nitrile-containing cure site monomer are cured with certain nitrogen-containing nucleophilic compounds. The nucleophilic compounds also act as dual curatives in perfluoroelastomer compositions which incorporate other curing agents.

대표청구항 ▼

Perfluoroelastomer compositions comprising perfluoroelastomers having copolymerized units of tetrafluoroethylene, a perfluoro(vinyl ether), and a nitrile-containing cure site monomer are cured with certain nitrogen-containing nucleophilic compounds. The nucleophilic compounds also act as dual curati

Perfluoroelastomer compositions comprising perfluoroelastomers having copolymerized units of tetrafluoroethylene, a perfluoro(vinyl ether), and a nitrile-containing cure site monomer are cured with certain nitrogen-containing nucleophilic compounds. The nucleophilic compounds also act as dual curatives in perfluoroelastomer compositions which incorporate other curing agents. : A Biochemical Approach, Oxford University Press, New York pp. 388-392 (1985). Olah, Friedel-Crafts and Related Reactions, Interscience Publishers, New York 3:1355-1392 (1964). Remington's Pharmaceutical Sciences, Mark Publishing Company, Pennsylvania (1975). Salamonczyk et al., A Concise Synthesis of Thyroxine (T4) and 3,5,3'-Triiodo-L-thyronine (T3), Tetrahedron Letters 38(40):6965-6968 (1997). Kuchar et al., "Use of Qsar in design of antiinflammatory fluorinated arylalkanoic acids," Collect. Czech. Chem. Commun. 55:296-306 (1990). Kuchar et al., "Benzyloxyarylaliphatic acids; sythesis and quantitative relations between structure and antiinflammatory activity," Collect. Czech. Chem. Commun. 47:2514-2524 (1982). Perrier and Labelle, "Liquid-phase synthesis with solid-phase workup: application to multistep and combinatorial synthesis," J. Org. Chem. 64:2100-2113 (1999); supporting info pp. 1-18. Chem Abs 121: 280 387 1993.* Derwent #000925695, WPI Acc No.: 12973-02913U/197303 (citing French Patent No. FR 8005 M). Derwent #009512849, WPI Acc No.: 1993-206385/199326 (citing European Patent No. 0548711). Derwwnt #012398862, WPI Acc No.: 1999-204969/199917 (citing International PCT application No. WO 99/11255).