Pressure-sensitive adhesives comprising low molecular weight acid-functional acrylic resins and methods of making and using same

US9657204B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Matthias Gerst · Maikammer, DE
• Michael B. Gross · Kassel, DE
• Rafael Galvan · Canton, US

Key dates

• Filing date: May 29, 2013
• Grant date: May 23, 2017
• Expiry date: May 29, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2433/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed herein are compositions comprising a first copolymer derived from monomers comprising a (meth)acrylate monomer, an acid monomer, and optionally at least one additional monomer selected from the group consisting of styrene, a-methyl-styrene, vinyl toluene, and mixtures thereof, wherein the first copolymer is derived in the absence of a molecular weight regulator and wherein the first copolymer has a weight average molecular weight of less than 10,000 Daltons, and methods of making the same. The compositions and methods disclosed can be used, for instance, in pressure-sensitive adhesive applications.