B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
402/453
B01J 41/14 (2006.01) C08F 8/32 (2006.01)
Patent
CA 1262797
ABSTRACT This invention concerns a polymer matrix comprising weak base functionalities wherein said weak base functionalities are attached to said polymer matrix through a nitrogen atom of a 1,X-polyamino- alkylene amine functionality, where X is an integer greater than 2 wherein said 1,X-polyaminoalkyleneamine is represented by the general formula:. Image wherein R is independently hydrogen, alkyl, alkylene amine, alkylene hydroxide or alkylene sulfide, a is an integer greater than 2 when b is at least one; and if b is greater than 1, a is greater than or equal to 2 with at least one of a being greater than 2. The invention also concerns a process for the preparation of these compositions by contacting a polymer matrix having haloalkyl functionalities with the above 1,X-poly- aminoalkyleneamine in the presence of a solvent in an amount of from 0 to 20 times that of the volumes of the polyaminoalkyleneamine at a temperature of from 0°C to 150°C. The compositions are useful as ion exchange resins which have high anion exchange capacity as well as high resistance to oxidation.
498734
Stahlbush James R.
Tomalia Donald A.
Smart & Biggar
Stahlbush James R.
The Dow Chemical Company
Tomalia Donald A.
LandOfFree
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