Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2006-02-21
2006-02-21
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...
C526S135000, C526S147000, C526S185000, C526S193000, C526S194000, C526S209000, C526S214000, C526S237000, C526S189000, C525S106000, C525S270000, C525S288000, C525S313000, C525S333700, C525S334100, C525S343000, C525S355000, C525S918000
Reexamination Certificate
active
07001966
ABSTRACT:
The present invention relates to a process for preparing an isobutene polymer using a cyclopentene derivative as initiator and to the isobutene polymer obtainable by means of the process and to particular functionalization products thereof.
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Lang Gabriele
Lange Arno
Mach Helmut
Rath Hans Peter
BASF - Aktiengesellschaft
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Teskin Fred
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