Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2006-12-12
2006-12-12
Teskin, Fred (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S308000, C526S348700, C524S554000, C524S573000
Reexamination Certificate
active
07148303
ABSTRACT:
The present invention relates to an elastomeric polymer having repeating units derived from at least one isomonoolefin monomer, at least one multiolefin monomer, at least one diisoalkenylbenzene monomer, and optionally further copolymerizable monomers, wherein the polymer has a Mooney viscosity (ML 1+8@125° C. according to ASTM D1646) of less than 40 units and a Shore A hardness higher than 65 points @ 23° C. (according to ASTM D2240) as well as a curable composition containing the elastomeric polymer and a shaped article manufactured from the curable composition.
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“Makromol. Chem.”, 183, pp. 2787-2797 (1982), “Anionic Polymerization and Copolymerization of 1,3- and 1,4-Diisopropenylbenzene” Lutz, Beinert, Rempp.
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“New Monomers and Polymers”, B. Culbertson and C. Pittman (Eds.), Plenum Press, New York, 1984, pp. 415-428 “Synthesis of Copolymers ofm-Diisopropenylbenzene andm-Dimethoxybenzene” R.A. Smith et al, (1995) The Goodyear Tire and Rubber Company, Akron, Ohio.
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Gronowski Adam
Osman Akhtar
Lanxess Inc.
Seng Jennifer R.
Teskin Fred
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