Polyurethane moisture barrier coatings containing thermoplastic resins

US11193041B1 · kind B1 · utility

Assignee

• SURFACE CHEMISTS OF FLORIDA, INC. · US

Inventors

• A. Jaeton Glover · North Palm Beach, US
• Alice P. Hudson · Lake Park, US
• Stefan J. Kelly · North Palm Beach, US
• Russell Klare · North Palm Beach, US
• Cynthia Moss · North Palm Beach, US
• Matthew Taylor · Cincinnati, US

Key dates

• Filing date: Jun 9, 2020
• Grant date: Dec 7, 2021
• Expiry date: Jun 9, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2310/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A moisture barrier coating includes the reaction product of (A) at least one polyol and (B) at least one polyisocyanate. The moisture barrier coating further includes at least one amorphous thermoplastic material that forms a homogeneous mixture with the polyol, and is nonreactive with the polyol and with the polyisocyanate. A controlled release fertilizer, a method for the production of a controlled release fertilizer, and a moisture barrier coating composition are also disclosed.