Granted Patent B2

US 7,485,728 · App. 11/702,758 · Granted Feb 3, 2009

Assignee: Xerox Corporation

Abstract

Claims (33)

1. A compound of the formula

wherein R 1 , R 2 , R 3 , and R 4 each, independently of the others, is (i) a hydrogen atom, (ii) an alkyl group, (iii) an aryl group, (iv) an arylalkyl group, or (v) an alkylaryl group, wherein R 1 and R 2 can be joined together to form a ring, wherein R 3 and R 4 can be joined together to form a ring, and wherein R 1 , R 2 , R 3 , and R 4 can each be joined to a phenyl ring in the central structure;

wherein a and b each, independently of the others, is an integer which is 0, 1, 2, or 3,

wherein R 5 and R 6 are hydrogen or alkyl;

wherein A is an anion selected from the group consisting of Cl − , Br − , I − , HSO 4 − , HSO 3 − , SO 4 2 − , SO 3 2 − , CH 3 SO 3 − , CH 3 C 6 H 4 SO 3 − , NO 3 − , HCOO − , CH 3 COO − , H 2 PO 4 − , HPO 4 2 − , SCN − , BF 4 − , ClO 4 − , SSO 3 − , PF 6 − , and SbCl 6 − ;

wherein CA is either a hydrogen atom an alkali metal cation, or a quaternary amine cation of the formula

 wherein each of R 21 , R 22 , R 23 , and R 24 are independently selected from an alkyl group having 1 to 6 carbon atoms;

wherein R is (i) an alkyl group, (ii) an aryl group, (iii) an arylalkyl group, (iv) an alkylaryl group, (v) an alkoxy group, (vi) an acetate group, or (vii) a co-polymer of maleic anhydride;

wherein n is an integer which is 1 to 1,000; and

wherein m is an integer which is 1 to 1,000.

2. A compound according to claim 1 , wherein a and b are each zero.

3. A compound according to claim 1 , wherein at least one of R 1 , R 2 , R 3 , and R 4 is an alkyl group.

4. A compound according to claim 1 , wherein R 1 and R 2 are joined together to form a ring.

5. A compound according to claim 1 , wherein R 1 and R 2 are joined together to form a ring and wherein R 3 and R 4 are joined together to form a ring.

6. A compound according to claim 1 , wherein at least one of R 1 , R 2 , R 3 , and R 4 is joined to a phenyl ring in the central structure.

7. A compound according to claim 1 , wherein R is an alkyl group.

8. A compound according to claim 1 , wherein R is an aryl group.

9. A compound according to claim 1 , wherein R is C 6 H 5 .

10. A compound according to claim 1 , wherein R is CH 2 CH 2 .

11. A compound of the formula

wherein n is 1 to 1,000 and wherein m is 1 to 1,000.

12. A compound of the formula

wherein n is 1 to 1,000 and wherein m is 1 to 1,000.

13. A compound of the formula

wherein R 1 , R 2 , R 3 , and R 4 each, independently of the others, is (i) a hydrogen atom, (ii) an alkyl group, (iii) an aryl group, (iv) an arylalkyl group, or (v) an alkylaryl group, wherein R 1 and R 2 can be joined together to form a ring, wherein R 3 and R 4 can be joined together to form a ring, and wherein R 1 , R 2 , R 3 , and R 4 can each be joined to a phenyl ring in the central structure;

wherein a and b each, independently of the others, is an integer which is 0, 1, 2, or 3;

wherein R 5 and R 6 are hydrogen or alkyl;

wherein A is an anion selected from the group consisting of Cl − , Br − , I − , HSO 4 − , HSO 3 − , SO 4 2 − , SO 3 2 − , CH 3 SO 3 − , CH 3 C 6 H 4 SO 3 − , NO 3 − , HCOO − , CH 3 COO − , H 2 PO 4 − , HPO 4 2 − , SCN − , BF 4 − , ClO 4 − , SSO 3 − , PF 6 − , and SbCl 6 − ;

wherein CA is either a hydrogen atom an alkali metal cation, or a quaternary amine cation of the formula

 wherein each of R 21 , R 22 , R 23 , and R 24 are independently selected from an alkyl group having 1 to 6 carbon atoms;

wherein R is (i) an alkyl group, (ii) an aryl group, (iii) an arylalkyl group, (iv) an alkylaryl group, (v) an alkoxy group, (vi) an acetate group, or (vii) a co-polymer of maleic anhydride;

wherein R 30 and R 31 each, independently of the other, is an alkyl group, an aryl group, an alkylaryl group, or an arylalkyl group; and

wherein n is 1 to 1,000, m is 1 to 1,000, p is 1 to 1,000 and s is 1 to 1,000.

Assignments (10)

Continuity (1)