FILM FOR LAMINATED GLASS, AND LAMINATED GLASS
First Claim
1. A film for laminated glass, the film comprising a resin film;
- and an optically functional layer containing a polymer on at least one surface of the resin film, wherein the heat shrinkage rate (S1) of the film for laminated glass and the heat shrinkage rate (S2) of the resin film obtainable after the films are left to stand for 30 minutes in an environment at 130°
C. are respectively adjusted so as to satisfy the following expression (I) in a direction in the plane as well as a direction orthogonal thereto;
0.60≦
S1/S2≦
0.98
Expression (I);
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a film for laminated glass, the film exhibiting satisfactory in-plane uniformity when processed into a laminated glass, and excellent processing suitability for a glass having a curved surface. Provided is also a laminated glass provided with the film for laminated glass.
The film for laminated glass of the present invention is a film for laminated glass, which has a resin film; and an optically functional layer containing a polymer on at least one surface of the resin film, and in which the heat shrinkage rate (S1) of the film for laminated glass and the heat shrinkage rate (S2) of the resin film obtainable after the films are left to stand for 30 minutes in an environment at 130° C. are respectively adjusted so as to satisfy the following expression (I) in a direction in the plane as well as a direction orthogonal thereto:
0.60≦S1/S2≦0.98 Expression (I):
8 Citations
20 Claims
-
1. A film for laminated glass, the film comprising a resin film;
- and an optically functional layer containing a polymer on at least one surface of the resin film, wherein the heat shrinkage rate (S1) of the film for laminated glass and the heat shrinkage rate (S2) of the resin film obtainable after the films are left to stand for 30 minutes in an environment at 130°
C. are respectively adjusted so as to satisfy the following expression (I) in a direction in the plane as well as a direction orthogonal thereto;
0.60≦
S1/S2≦
0.98
Expression (I); - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- and an optically functional layer containing a polymer on at least one surface of the resin film, wherein the heat shrinkage rate (S1) of the film for laminated glass and the heat shrinkage rate (S2) of the resin film obtainable after the films are left to stand for 30 minutes in an environment at 130°
Specification