Patent ID: 7517997

Claim:
A process for preparation of a polymer of structure (I) comprising: wherein “X” is an alkyl group, wherein “Y” is an alkyl group, wherein “p” is about 5 to about 10,000, wherein “R” is an alkyl group, wherein “n” is 2-9, wherein “m” is 2-9, wherein “R” is chemically bonded to N 1 or N 2 position; reacting an isocyanate resin with an effective amount of a tetrazole polyol of structure (II), wherein “R” is an alkyl group, wherein “n” is 2-9; at about 50° C. to about 100° C. for about 1 hour to about 24 hours allowing contact of reactant; said isocyanate resin of structure (III), wherein “Y” is an alkyl group, wherein “m” is 2-9; and cooling to room temperature; extracting a cross-linked polyisocyanate polymer of structure (I).