Film for laminating glass, method for manufacturing film for laminating glass, and vehicle comprising film for laminating glass

Patent metadata

Field	Value
Publication number	US-11613611-B2
Application number	US-202017106339-A
Country	US
Kind code	B2
Filing date	Nov 30, 2020
Priority date	Jun 5, 2018
Publication date	Mar 28, 2023
Grant date	Mar 28, 2023

Abstract

A film for laminating glass includes a polyvinyl acetal, a plasticizer, inorganic particles, and a trioxane-based compound.

First claim

What is claimed is:

1. A film for laminating glass comprising:
a polyvinyl acetal;
a plasticizer;
inorganic particles; and
a trioxane-based compound,
wherein the inorganic particles and the trioxane-based compound comprised in the film have a weight ratio of inorganic particles to trioxane-based compound of 1:0.005 to 0.8; and
the trioxane-based compound is a dispersion stabilizer.

2. The film for laminating glass of claim 1 ,
wherein the trioxane-based compound and the plasticizer have a difference in refractive index from each other of 0.1 or less.

3. The film for laminating glass of claim 1 ,
wherein the trioxane-based compound comprises a 1,3,5-trioxane skeleton, and 1 to 3 carbon atoms within 3 carbon atoms in the skeleton independently have hydrogen, or an alkyl group having 1 to 5 carbon atoms, respectively.

4. The film for laminating glass of claim 1 ,
wherein the trioxane-based compound is comprised in an amount of 0.0001 to 1 wt % with respect to a total weight of the film for laminating glass.

5. The film for laminating glass of claim 1 ,
wherein a deviation of visible light transmittance is 1.0 or less.

6. The film for laminating glass of claim 1 ,
wherein a visible light transmittance is 70% or more.

7. The film for laminating glass of claim 1 ,
wherein a deviation of solar transmittance is 1.0 or less.

8. The film for laminating glass of claim 1 ,
wherein a solar transmittance is 50% or more.

9. The film for laminating glass of claim 1 ,
wherein a haze value is 3.5% or less.

10. A laminated glass comprising a laminate where the film for laminating glass according to claim 1 is disposed between two sheets of glass.

11. A vehicle comprising the laminated glass according to claim 10 .

12. The film for laminating glass of claim 1 , wherein the trioxane-based compound is substituted with an alkyl group having 1 to 5 carbon atoms.

13. The film for laminating glass of claim 12 , wherein the trioxane-based compound is a trialkyl trioxane.

14. A film for laminating glass comprising:
a polyvinyl acetal;
a plasticizer;
inorganic particles; and
a trioxane-based compound,
wherein the inorganic particles and the trioxane-based compound comprised in the film have a weight ratio of inorganic particles to trioxane-based compound of 1:0.005 to 0.8; and
the inorganic particles comprise infrared ray blocking particles.

15. The film for laminating glass of claim 14 ,
wherein the trioxane-based compound comprises a 1,3,5-trioxane skeleton, and 1 to 3 carbon atoms within 3 carbon atoms in the skeleton independently have hydrogen, or an alkyl group having 1 to 5 carbon atoms, respectively.

16. The film for laminating glass of claim 14 ,
wherein a difference between values of visible light transmittance and solar transmittance is 10% or more.

17. A film for laminating glass comprising:
a polyvinyl acetal;
a plasticizer;
inorganic particles; and
a trioxane-based compound,
wherein the inorganic particles and the trioxane-based compound comprised in the film have a weight ratio of inorganic particles to trioxane-based compound of 1:0.005 to 0.8; and
a difference between values of visible light transmittance and solar transmittance is 10% or more.

18. The film for laminating glass of claim 17 ,
wherein the trioxane-based compound comprises a 1,3,5-trioxane skeleton, and 1 to 3 carbon atoms within 3 carbon atoms in the skeleton independently have hydrogen, or an alkyl group having 1 to 5 carbon atoms, respectively.

19. The film for laminating glass of claim 17 ,
wherein the trioxane-based compound is a dispersion stabilizer.

Assignees

• Skc Co Ltd

Inventors

• Kim Hyejin
• Ryu Jiyeon
• Kim Kyuhun
• Chung Sungjin

Classifications

• B29C48/00

  Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C49/04) · CPC title

• B32B2250/40

  Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA · CPC title

• B32B7/02

  Physical, chemical or physicochemical properties · CPC title

• C08J3/18 Primary

  Plasticising macromolecular compounds (plasticisers C08K) · CPC title

• C08J5/18

  Manufacture of films or sheets · CPC title