Phenolic hole transport polymers

• US 7,538,175 B2
• Filed: 10/13/2005
• Issued: 05/26/2009
• Est. Priority Date: 10/13/2005
• Status: Expired due to Fees

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: McGuire, Greg, Vong, Cuong, Hu, Nan-Xing, Qi, Yu
• Primary Examiner(s): Pyon; Harold Y
• Assistant Examiner(s): Heincer; Liam J
• Application Number:
  US11/250,296
• Publication Number:
  US 20070087276A1
• Time in Patent Office: 1,321 Days
• Field of Search: 528/86, 528/129, 528/162, 403/58.7
• US Class Current: 528/162
• CPC Class Codes: C08G 8/24 with mixtures of two or more phenols which are not covered by only one of the groups C08G8/10 - C08G8/20
• CPC Class Codes: G03G 5/0567 Other polycondensates comprising oxygen atoms in the main chain; Phenol resins
• CPC Class Codes: G03G 5/0589 Macromolecular compounds characterised by specific side-chain substituents or end groups
• CPC Class Codes: G03G 5/0616 Hydrazines; Hydrazones
• CPC Class Codes: G03G 5/075 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds G03G5/078 takes precedence
• CPC Class Codes: G03G 5/0764 triarylamine
• CPC Class Codes: G03G 5/14708 comprising organic material
• CPC Class Codes: G03G 5/14713 Macromolecular material
• CPC Class Codes: G03G 5/1476 Other polycondensates comprising oxygen atoms in the main chain; Phenol resins
• CPC Class Codes: G03G 5/14786 Macromolecular compounds characterised by specific side-chain substituents or end groups
• CPC Class Codes: G03G 9/0819 characterised by the dimensions of the particles

Abstract

A polymer having hole transport functionality and antioxidant properties is disclosed. The polymer comprises a phenolic segment and a hole transport segment. The polymer is suitable for use in the charge transport layer of an imaging member. Processes for producing the polymer are also disclosed.

Claims

1. A phenolic hole transport polymer represented by Formula (III):

2. The phenolic hole transport polymer of claim 1, wherein said polymer has an average molecular weight ranging from about 1,000 to about 100,000.

3. The phenolic hole transport polymer of claim 1, wherein D is methylene and Ar is 3,4-dimethylphenyl or biphenyl.

4. The phenolic hole transport polymer of claim 3, wherein D is methylene, R₂ and R₄ are hydrogen, R₃ is methyl or ethoxyl, and Ar is 3,4-dimethylphenyl.

5. The phenolic hole transport polymer of claim 1, wherein the hole transport polymer is selected from the group consisting of formulas (III-a) to (III-k):

6. A phenolic hole transport polymer of Formulas (III-m) or(III-p):

7. An imaging member having a layer comprising a polymer, wherein the polymer is represented by Formula (III):

8. The imaging member of claim 7, wherein said polymer has an average molecular weight ranging from about 1,000 to about 100,000.

9. The imaging member of claim 7, wherein the layer is a charge transport layer or an overcoat layer.

10. The imaging member of claim 7, wherein the phenolic hole transport polymer is crosslinked.