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US 2023/0151249 A1Published application
Polyurethane-based adhesive composition, surface protection film comprising same, method for manufacturing surface protection film, and method for manufacturing organic light-emitting electronic device
AssigneeLG Chem, Ltd.
InventorsJinhoo Kim, Sang Hwan Kim, Kwang Su Seo
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Abstract
The present specification relates to a polyurethane-based adhesive composition, a surface protective film comprising the same, a method for preparing a surface protective film, and a method for manufacturing an organic light emitting electronic device.
Claims17
A polyurethane-based adhesive composition comprising:
- a polyurethane polymer comprising a difunctional polyol and a trifunctional polyol;
- and
- an isocyanate-based crosslinking agent,
- wherein the adhesive composition has viscosity of greater than or equal to 1,000 cPs and less than or equal to 10,000 cPs under a condition of 25° C. and relative humidity of 60%;
- the difunctional polyol is included in an amount of 5 parts by weight to 40 parts by weight, based on 100 parts by weight of the polyurethane polymer;
- and
- the trifunctional polyol is included in an amount of 60 parts by weight to 95 parts by weight, based on 100 parts by weight of the polyurethane polymer.
4 more elements
Dependencies are inferred from the claim text.