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:
Sep. 27, 2022
Filed:
Mar. 13, 2020
Encapsys, Llc, Appleton, WI (US);
Todd Arlin Schwantes, Lena, WI (US);
Diane Jean Williamson, Kaukauna, WI (US);
Gregory Walter Perrine, Appleton, WI (US);
Other;
Abstract
The invention describes a core shell microcapsule wherein the capsule shell is hydrolysable. The capsule is made from a water phase with initiator and emulsifier, and from one or more oil phases having a first multifunctional (meth)acrylate monomer having greater than one ester group on average in the monomer and having a hydrophilicity index of less than 20; a second multifunctional (meth)acrylate monomer, the second multifunctional (meth)acrylate comprising a hydrophilic multifunctional polar monomer having a hydrophilicity index of at least 20 and said second multifunctional polar monomer comprising 50% or less of the capsule shell along with an acidic (meth)acrylate monomer or at least one oil soluble or dispersible simple acid, the acidic (meth)acrylate monomer having one or more groups which are selected from carboxy and sulfonic groups, and optionally from 0 to 50% by weight of the shell comprises in addition an aliphatic polyester comprising an oligomer, polymer or co-polymer of one or more of lactic acid, caprolactone, or glycolic acid, the aliphatic polyester having two or more of acrylate or methacrylate groups.