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US 2014/0154513 A1Published application
Thermoplastic polyurethane interlayer
AssigneePPG Industries Ohio, Inc.
InventorsRazmik Boghossian, Khushroo H. Lakdawala
Life of this patent
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Abstract
A composition including an isocyanate, a polyether polyol and a low molecular weight polyester polyol having a weight average molecular weight in a range of about 200 g/mol to about 1000 g/mol is disclosed. Films including the composition and interlayers including the film are also disclosed. Transparencies including the interlayer and methods of making the same are further disclosed.
Claims20
A composition comprising:
- an isocyanate;
- a polyether polyol;
- and
- a low molecular weight polyester polyol having a weight average molecular weight in a range of about 200 g/mol to about 1000 g/mol.
1 more element
A composition comprising:
- an isocyanate;
- a polyether diol;
- a branched short chain diol having a backbone including carbon atoms in a range of 1 to 9, and at least one branching group;
- and
- a cross-linker having a hydroxyl functionality in a range of 2.2 to 4.
2 more elements
Dependencies are inferred from the claim text.