INTERLAYER FILM FOR LAMINATED GLASS, LAMINATED GLASS, AND ZINC OXIDE FINE PARTICLE DISPERSION

• US 20110059320A1
• Filed: 03/31/2009
• Published: 03/10/2011
• Est. Priority Date: 03/31/2008
• Status: Abandoned Application

• Current Assignee: Sekisui Chemical Company Limited (Sekisui)
• Original Assignee: Sekisui Chemical Company Limited (Sekisui)
• Inventors: Ii, Daizo, Fukatani, Juichi, Kitano, Hirofumi
• Application Number:
  US12/934,741
• Publication Number:
  US 20110059320A1
• Time in Patent Office: Days
• US Class Current: 428/432
• CPC Class Codes: B32B 17/10633 Infrared radiation absorbing or reflecting agents
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: C01G 9/02 Oxides; Hydroxides
• CPC Class Codes: C09C 1/043 Zinc oxide

Abstract

The objective is to provide an intermediate film for laminated glass, a laminated glass, and a zinc oxide microparticle dispersion, wherein the zinc oxide microparticles exhibit excellent dispersibility. Disclosed is an intermediate film for laminated glass that contains zinc oxide microparticles containing a trivalent metal element, a thermoplastic resin, a dispersant, and a plasticizer, wherein said dispersant has a structure represented by general formula (1), and the HLB value is 8-12. (1) R¹ represents a C5-C14 alkyl group or a C6-Cl4 aryl group, R² represents a C2-C5 alkylene group, R³ represents a hydrogen atom or R⁴(OR⁵)_n—, R⁴represents a C5-C14 alkyl group or a C6-C14 aryl group, R¹ represents a C2-C5 alkylene group, and n is an integer of at least one.

Claims

1. An interlayer film for a laminated glass,

which comprises:

zinc oxide fine particles containing a trivalent metallic element;

a thermoplastic resin;

a dispersant; and

a plasticizer,

the dispersant having a structure represented by the following general formula (1) and having an HLB value of 8 to 12;

2. The interlayer film for a laminated glass according to claim 1,

wherein R¹ is a 2-ethylhexyl group or a tridecyl group.

3. The interlayer film for a laminated glass according to claim 1,

wherein the trivalent metallic element is gallium, aluminum, or indium.

4. The interlayer film for a laminated glass according to claim 1,

wherein the interlayer film comprises 1 to 50 parts by weight of the dispersant with respect to 100 parts by weight of the zinc oxide fine particles containing the trivalent metallic element.

5. The interlayer film for a laminated glass according to claim 1,

which further comprises a heat ray absorbent.

6. The interlayer film for a laminated glass according to claim 5,

wherein the heat ray absorbent is tin-doped indium oxide fine particles.

7. The interlayer film for a laminated glass according to claim 1,

wherein the interlayer film has a multi-layered structure obtained by laminating two or more resin layers,

the resin layers comprising a heat ray shielding layer,

the shielding layer containing:

the zinc oxide fine particles containing the trivalent metallic element;

the thermoplastic resin;

the dispersant having a structure represented by said general formula (1); and

the plasticizer.

8. A laminated glass,

which is obtained by using the interlayer film for a laminated glass according to claim 1.

9. A zinc oxide fine particle dispersion,

which comprises:

zinc oxide fine particles containing a trivalent metallic element;

a dispersant; and

a plasticizer,

the dispersant having a structure represented by the following general formula (1) and having an HLB value of 8 to 12;

10. The zinc oxide fine particle dispersion according to claim 9,

wherein R¹ is a 2-ethylhexyl group or a tridecyl group.

11. The zinc oxide fine particle dispersion according to claim 9,

wherein the trivalent metallic element is gallium, aluminum, or indium.

12. The zinc oxide fine particle dispersion according to claim 9,

wherein the dispersion comprises 1 to 50 parts by weight of the dispersant with respect to 100 parts by weight of the zinc oxide fine particles containing the trivalent metallic element.