Back to results
US 2014/0213716 A1Published application
Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheet
AssigneeNitto Denko Corporation
InventorsYoshihiro OKADA, Naoyuki Nishiyama, Hironao Ootake, Naoki Nakayama, Junichi Nakayama
Life of this patent
Estimating the term…
Abstract
This invention provides a PSA composition comprising a base polymer and a tackifier resin. The base polymer is a block copolymer of a monovinyl-substituted aromatic compound and a conjugated diene compound. The tackifier resin comprises a tackifier resin TH having a softening point of 120° C. or above. The tackifier resin TH comprises a tackifier resin THR1 having an aromatic ring while having a hydroxyl value of 30 mgKOH/g or lower.
Claims20
A pressure-sensitive adhesive composition comprising a base polymer and a tackifier resin, wherein
- the base polymer is a block copolymer of a monovinyl-substituted aromatic compound and a conjugated diene compound,
- the tackifier resin comprises a tackifier resin TH having a softening point of 120° C. or above, and
- the tackifier resin TH comprises a tackifier resin THR1 having an aromatic ring and having a hydroxyl value of 30 mgKOH/g or lower.
Dependencies are inferred from the claim text.