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US 11,434,336 B2Granted
Composition and method for manufacturing a film comprising thiourethane layer
AssigneeSkc Co., Ltd.
InventorsSang Mook Kim, Sungjin Chung, Haksoo Lee
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Abstract
A film for glass bonding includes a thiourethane layer comprising a heterocyclo-alkanediyl-based repeat unit indicated by Formula 1, and a linear alkanediyl-based repeat unit indicated by Formula 2, and a base layer, disposed on a surface of the thiourethane layer, comprising a polyvinyl acetal resin and a plasticizer. In the Formula 1, R1 is —O— or —S—, and X is a heterocyclo-alkanediyl group having carbon atoms of 3 to 10 and sulfur atoms of 1 to 5, and in the Formula 2, R2 is —O— or —S—, and n2 is an integer of 4 to 10.
Claims5
A film for glass bonding comprising:
- a thiourethane layer comprising a heterocyclo-alkanediyl-based repeat unit indicated by Formula 1,
- and a linear alkanediyl-based repeat unit indicated by Formula 2,
- and
- a base layer, disposed on a surface of the thiourethane layer, comprising a polyvinyl acetal resin and a plasticizer,
- wherein in the Formula 1, R1 is —O— or —S—, and X is a heterocyclo-alkanediyl group having carbon atoms of 3 to 10 and sulfur atoms of 1 to 5,
- wherein in the Formula 2, R2 is —O— or —S—, and n2 is an integer of 4 to 10, and
- wherein the thiourethane layer comprises a wedge-shaped section whose thickness varies in a width direction of the film in part or the whole of the thiourethane layer.
4 more elements
A manufacturing method for a film comprising:
- putting a thiourethane resin comprising a thiourethane-based repeat unit indicated by Formula 1,
- and a linear alkanedyil-based repeat unit indicated by Formula 2,
- into an extruder;
- extruding the thiourethane resin at a temperature of 120 to 200° C. to manufacture a thiourethane layer;
- putting a resin composition comprising a polyvinyl acetal resin and a plasticizer into an extruder and extruding the resin composition to manufacture a base layer;
- and
- hot pressing the base layer disposed on a surface of on the thiourethane layer to form the film,
- wherein the film comprises the thiourethane layer and the base layer disposed on a surface of the thiourethane layer, and
- wherein the film is a film for glass bonding,
- wherein in the Formula 1, R1 is —O— or —S—, and X is a heterocyclic-alkanedyil group having carbon atoms of 4 to 10 and sulfur atoms of 1 to 5,
- wherein in the Formula 2, R2 is —O— or —S—, and n2 is an integer of 4 to 10, and
- wherein the thiourethane layer comprises a wedge-shaped section whose thickness varies in a width direction of the film in part or the whole of the thiourethane layer.
9 more elements
Dependencies are inferred from the claim text.