Intermediate film for laminated glass, and laminated glass
First Claim
1. An interlayer film for laminated glass,the interlayer film which is arranged between a first lamination glass member and a second lamination glass member to obtain a laminated glass, the laminated glass being at least one selected from the group consisting of a windshield, side glass, rear glass, and roof glass of an automobile,said interlayer film having a thickness of greater than or equal to 0.1 mm,said interlayer film comprising a polyvinyl acetal resin and a second resin component with a glass transition temperature higher than or equal to −
- 15°
C. and lower than or equal to −
2.2°
C., the second resin component being a (meth)acrylic resin,said interlayer film further comprising a compatibilizer which comprises a block copolymer or a graft copolymer of a polyvinyl acetal resin and a (meth)acrylate; and
the content of the polyvinyl acetal resin being greater than or equal to 10% by weight and less than or equal to 50% by weight and the content of the second resin component being greater than or equal to 50% by weight and less than or equal to 90% by weight, in 100% by weight of the total of the polyvinyl acetal resin and the second resin component,the polyvinyl acetal resin and the second resin component forming a sea-island structure in the interlayer film, anda resin constituting a sea part of the sea-island structure being the polyvinyl acetal resin.
1 Assignment
0 Petitions
Accused Products
Abstract
There is provided an interlayer film for laminated glass with which the sound insulating properties of laminated glass can be enhanced. The interlayer film 2 for laminated glass according to the present invention includes a polyvinyl acetal resin and a second resin component with a glass transition temperature higher than or equal to −15° C. and lower than or equal to 5° C., the content of the polyvinyl acetal resin is greater than or equal to 10% by weight and less than or equal to 50% by weight and the content of the second resin component is greater than or equal to 50% by weight and less than or equal to 90% by weight, in 100% by weight of the total of the polyvinyl acetal resin and the second resin component, and the polyvinyl acetal resin and the second resin component form a sea-island structure in the interlayer film.
12 Citations
19 Claims
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1. An interlayer film for laminated glass,
the interlayer film which is arranged between a first lamination glass member and a second lamination glass member to obtain a laminated glass, the laminated glass being at least one selected from the group consisting of a windshield, side glass, rear glass, and roof glass of an automobile, said interlayer film having a thickness of greater than or equal to 0.1 mm, said interlayer film comprising a polyvinyl acetal resin and a second resin component with a glass transition temperature higher than or equal to − - 15°
C. and lower than or equal to −
2.2°
C., the second resin component being a (meth)acrylic resin,said interlayer film further comprising a compatibilizer which comprises a block copolymer or a graft copolymer of a polyvinyl acetal resin and a (meth)acrylate; and the content of the polyvinyl acetal resin being greater than or equal to 10% by weight and less than or equal to 50% by weight and the content of the second resin component being greater than or equal to 50% by weight and less than or equal to 90% by weight, in 100% by weight of the total of the polyvinyl acetal resin and the second resin component, the polyvinyl acetal resin and the second resin component forming a sea-island structure in the interlayer film, and a resin constituting a sea part of the sea-island structure being the polyvinyl acetal resin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- 15°
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12. A laminated glass being at least one selected from the group consisting of a windshield, side glass, rear glass, and roof glass of an automobile,
said laminated glass comprising: -
a first laminated glass member, a second laminated glass member and an interlayer film for laminated glass, the interlayer film for laminated glass being arranged between the first laminated glass member and the second laminated glass member, said interlayer film having a thickness of greater than or equal to 0.1 mm, said interlayer film comprising a polyvinyl acetal resin and a second resin component with a glass transition temperature higher than or equal to −
15°
C. and lower than or equal to −
2.2°
C., the second resin component being a (meth)acrylic resin; andthe content of the polyvinyl acetal resin being greater than or equal to 10% by weight and less than or equal to 50% by weight and the content of the second resin component being greater than or equal to 50% by weight and less than or equal to 90% by weight, in 100% by weight of the total of the polyvinyl acetal resin and the second resin component, in the interlayer film, the polyvinyl acetal resin and the second resin component forming a sea-island structure in the interlayer film, and a resin constituting a sea part of the sea-island structure being the polyvinyl acetal resin. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification