HUMIDITY DEPENDENCE IMPROVER FOR POLYMER FILM, POLYMER FILM, PROTECTIVE FILM FOR POLARIZER, RETARDATION FILM, POLARIZER, AND LIQUID CRYSTAL DISPLAY DEVICE

• US 20110073007A1
• Filed: 09/29/2010
• Published: 03/31/2011
• Est. Priority Date: 09/30/2009
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Yasuda, Takayasu, Nagura, Masato
• Granted Patent: US 8,465,673 B2
• Time in Patent Office: Days
• US Class Current: 106/170.1
• CPC Class Codes: C08J 2301/10 Esters of organic acids
• CPC Class Codes: C08J 2301/12 Cellulose acetate
• CPC Class Codes: C08J 5/18 Manufacture of films or sheets
• CPC Class Codes: C08K 5/3492 Triazines
• CPC Class Codes: C08L 1/10 Esters of organic acids , i.e. acylates
• CPC Class Codes: C08L 1/12 Cellulose acetate
• CPC Class Codes: G02B 1/04 made of organic materials, e.g. plastics G02B1/08 takes precedence
• CPC Class Codes: G02B 5/3025 Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state G02B5/3008, G02B5/3016 take precedence
• CPC Class Codes: G02B 5/3083 Birefringent or phase retarding elements G02B5/3008, G02B5/3016 take precedence; systems for polarisation control G02B27/286; manufacturing phase modulating patterns by lithographic processes G03F7/001
• CPC Class Codes: Y10T 428/24355 Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]

Abstract

A humidity dependence improver for polymer film, comprising a compound of the following formula (1) or (2):

wherein Ra, Rb and Rc represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; X¹ to X⁶ represent a single bond or a divalent linking group; R¹ to R⁶ represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group.

Claims

1. A humidity dependence improver for polymer film, comprising a compound of the following formula (1) or (2):

2. The humidity dependence improver for polymer film according to claim 1, wherein in the formula (1) and (2), X¹, X², X³, X⁴, X⁵ and X⁶ are each independently any one selected from a single bond and a group of divalent linking groups of the following formula (3):

3. The humidity dependence improver for polymer film according to claim 1, comprising the compound of the formula (1).

4. The humidity dependence improver for polymer film according to claim 3, wherein the compound of the formula (1) is represented by the following formula (4):

5. The humidity dependence improver for polymer film according to claim 3, wherein the compound of the formula (1) is represented by the following formula (5):

6. The humidity dependence improver for polymer film according to claim 3, wherein the compound of the formula (1) is represented by the following formula (6):

7. The humidity dependence improver for polymer film according to claim 3, wherein the compound of the formula (1) is represented by the following formula (6b):

8. The humidity dependence improver for polymer film according to claim 6, wherein Ra³ or Ra⁴ is an alkyl group.

9. The humidity dependence improver for polymer film according to claim 1, comprising the compound of the formula (2).

10. The humidity dependence improver for polymer film according to claim 9, wherein the compound of the formula (2) is represented by the following formula (7):

11. The humidity dependence improver for polymer film according to claim 9, wherein the compound of the formula (2) is represented by the following formula (8):

12. The humidity dependence improver for polymer film according to claim 9, wherein the compound of the formula (2) is represented by the following formula (9):

13. The humidity dependence improver for polymer film according to claim 12, wherein Rb³ and Rc³ are both alkyl groups.

14. The humidity dependence improver for polymer film according to claim 1 wherein the compound of the formula (1) or (2) is an Rth reducer.

15. A polymer film comprising a polymer having a hydroxyl group and a humidity dependence improver for polymer film, comprising a compound of the following formula (1) or (2):

16. The polymer film according to claim 15, wherein the group having a hydroxyl group is a cellulose acylate resin.

17. The polymer film according to claim 16, wherein the cellulose acylate resin is a cellulose acetate resin.

18. A retardation film comprising a polymer film wherein the polymer film comprises a polymer having a hydroxyl group and a humidity dependence improver for polymer film, comprising a compound of the following formula (1) or (2):

19. A polarizer comprising a polymer film wherein the polymer film comprises a polymer having a hydroxyl group and a humidity dependence improver for polymer film, comprising a compound of the following formula (1) or (2):

20. A liquid crystal display device comprising a polymer film wherein the polymer film comprises a polymer having a hydroxyl group and a humidity dependence improver for polymer film, comprising a compound of the following formula (1) or (2) :