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US 2016/0102181 A1Published application
Polymer interlayers comprising a blend of two or more resins
AssigneeSolutia Inc.
InventorJUN LU
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Abstract
An interlayer comprised of a blend of thermoplastic resins and at least one high refractive index having improved acoustic and optical quality is disclosed. The use of a blend thermoplastic resins and a high refractive index plasticizer improves transparency and acoustic properties without sacrificing other characteristics of the interlayer.
Claims19
A polymer interlayer comprising a blend of resins, the blend comprising:
- a first poly(vinyl butyral) resin having a first residual hydroxyl content;
- a second poly(vinyl butyral) resin having a second residual hydroxyl content;
- and
- a plasticizer;
- wherein the difference between the first residual hydroxyl content and the second residual hydroxyl content is at least 2.0 weight percent;
- and
- wherein the refractive index of the blend is at least 1.480.
4 more elements
A polymer interlayer comprising a blend of resins, the blend comprising:
- a first poly(vinyl butyral) resin having a first residual hydroxyl content;
- a second poly(vinyl butyral) resin having a second residual hydroxyl content;
- and
- a plasticizer;
- wherein the difference between the first residual hydroxyl content and the second residual hydroxyl content is at least 2.0 weight percent;
- and
- wherein the polymer interlayer has a percent haze of less than 5.0%, as measured by ASTM D1003-61 (Re-approved 1977)-Procedure A using Illuminant C, at an observer angle of 2 degrees.
4 more elements
A polymer interlayer comprising a blend of resins, the blend comprising:
- a first poly(vinyl butyral) resin having a first residual hydroxyl content;
- a second poly(vinyl butyral) resin having a second residual hydroxyl content;
- and
- a plasticizer having a refractive index of at least 1.460;
- wherein the blend has at least one glass transition temperature (Tg) greater than 25° C., and wherein the refractive index of the polymer interlayer is at least 1.480.
2 more elements
Dependencies are inferred from the claim text.