The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Jun. 19, 2017
Arkema Inc., King of Prussia, PA (US);
Lily Liu, Oak Ridge, TN (US);
Wayne Devonport, Apex, NC (US);
Daniel E. Stark, Raleigh, NC (US);
Matthew F. Boudreaux, Raleigh, NC (US);
Arkema Inc., King of Prussia, PA (US);
Abstract
A method of forming latex composite polymer particles produces hydrolysis resistant, composite polymer particles that can be used in aqueous latex compositions. Each of the latex composite polymer particles includes a first phase comprising a vinyl ester oligomer or polymer; optionally, an intermediate phase; and at least one second phase comprising an acrylic oligomer or polymer, a styrene oligomer or polymer, an acrylic-styrene copolymer, or mixtures thereof. The second phase and/or the intermediate phase at least partially encapsulates the first phase. The intermediate and second phases are more hydrophobic than the first phase. Optionally, the first phase, the second phase, and/or the intermediate phase may further comprise a cross-linking agent.