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1. WO2020206324 - MICROCAPSULE CLUSTERS

Publication Number WO/2020/206324
Publication Date 08.10.2020
International Application No. PCT/US2020/026678
International Filing Date 03.04.2020
IPC
B01J 13/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
13Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
02Making microcapsules or microballoons
B01J 13/18 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
13Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
02Making microcapsules or microballoons
06by phase separation
14Polymerisation, crosslinking
18In situ polymerisation with all reactants being present in the same phase
CPC
B01J 13/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
13Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
02Making microcapsules or microballoons
06by phase separation
10Complex coacervation, i.e. interaction of oppositely charged particles
C08L 33/10
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
33Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
04Homopolymers or copolymers of esters
06of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
10Homopolymers or copolymers of methacrylic acid esters
Applicants
  • ENCAPSYS, LLC [US]/[US]
Inventors
  • FENG, Linsheng
Agents
  • MIELIULIS, Benjamin
Priority Data
62/828,77303.04.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MICROCAPSULE CLUSTERS
(FR) GROUPES DE MICROCAPSULES
Abstract
(EN)
The present invention teaches a composition and process for irreversibly agglomerated charge stable core shell microcapsules, each microcapsule containing a benefit agent core material, which may be the same or different, the polymeric all or walls comprising one or more (meth)acrylate polymers, or optionally combinations with other polymers, along with a polyvalent cation. The capsules of the invention adhere better to surfaces, are more stable and are useful for delivery of benefit agents.
(FR)
La présente invention concerne une composition et un procédé pour des microcapsules noyau-enveloppe stables à la charge agglomérées de manière irréversible, chaque microcapsule contenant un matériau de noyau d'agent bénéfique, qui peut être identique ou différent, la ou les parois polymères comprenant un ou plusieurs polymères (méth)acrylate, ou éventuellement des combinaisons avec d'autres polymères, conjointement avec un cation polyvalent. Les capsules de l'invention adhèrent mieux aux surfaces, sont plus stables et sont utiles pour l'administration d'agents bénéfiques.
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