Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2007-06-12
2007-06-12
Teskin, Fred (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S293000, C525S328200, C525S329400, C525S374000, C525S384000, C525S385000, C525S386000, C526S088000, C526S320000, C528S272000, C528S295500
Reexamination Certificate
active
09648848
ABSTRACT:
A continuous polymerization process for producing reactive polymers comprises continuously charging into a first reaction zone at least one functional monomer and polymerizing the monomers to produce a first polymeric product having at least one functional group. This first polymeric product is then continuously directly charged into a second reaction zone together with at least one modifier reactant having a functional group that is complementary to the functional group of the first polymeric product. At least a portion of the modifier reactant reacts with at least one of the functional groups of the first polymeric product to produce a second polymeric product which incorporates at least a portion of the modifier reactant, such that the second polymeric product is a reactive polymer.
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Kaai Michihiro
Mori Yasuhiko
Schatz David D.
Srisiri-Sisson Warunee
Villalobos Marco A.
BASF Corporation
Foley & Lardner LLP
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