Back to results
US 2014/0154506 A1Published application
Pressure sensitive adhesives prepared from maleated vegetable oils and expoxidized vegetable oils
AssigneeAvery Dennison Corporation
InventorsCharles R. WILLIAMS, Qiang LUO, Mark GOWER
Life of this patent
Estimating the term…
Abstract
A method that includes reacting an epoxidized naturally-occurring oil or fat with a triacid to form a pressure sensitive adhesive or a pressure sensitive adhesive precursor is disclosed. The present invention also includes methods for preparing a triacid and for preparing a pressure sensitive adhesive label or tape.
Claims27
A method comprising:
- combining one or more epoxidized naturally-occurring oils or fats with at least one triacid to form a reaction mixture, and
- applying heat to the reaction mixture to form pressure sensitive adhesive.
A pressure sensitive adhesive label or tape, comprising:
- a facestock comprising an upper face and a lower face;
- and
- one or more layers of adhesive disposed on the lower face of the facestock;
- wherein at least a portion of one layer of the adhesive comprises a compound made by reacting one or more epoxidized naturally-occurring oils or fats with at least one triacid.
1 more element
A method for forming a triacid, wherein the method comprises
- mixing a naturally-occurring oil or fat having at least three hydroxyl groups with an anhydride to form an acid formation mixture, and
- heating the acid formation mixture to form a triacid.
Dependencies are inferred from the claim text.