EP 3774015 A1 20210217 - SPHERICAL MICROPARTICLES
Title (en)
SPHERICAL MICROPARTICLES
Title (de)
SPHÄRISCHE MIKROPARTIKEL
Title (fr)
MICROPARTICULES SPHÉRIQUES
Publication
Application
Priority
- EP 18166159 A 20180406
- EP 2019058500 W 20190404
Abstract (en)
[origin: WO2019193094A1] The present invention relates to compositions of spherical microparticles composed of a wall material and at least one cavity containing a gas and/or a liquid which contain pores at their surface, wherein the spherical microparticles have an average particle diameter of 10 - 600 µm and wherein at least 80% of those microparticles whose particle diameters deviate from the average particle diameter of the microparticles of the composition by not more than 20% each have on average at least 10 pores whose diameter is in the range from 1/5000 to 1/5 of the average particle diameter and furthermore the diameter of these pores is at least 20 nm, wherein the wall material consists of a composition containing at least one aliphatic-aromatic polyester and at least one additional polymer, wherein the additional polymen is selected from the group consisting of polyhydroxy fatty acids, poly(p-dioxanones), polyanhydrides, polyester amides, polysaccharides and proteins. The invention also relates to a process for the production and use thereof.
IPC 8 full level
B01J 13/04 (2006.01); A61K 8/11 (2006.01); B01J 13/20 (2006.01); C11D 3/50 (2006.01)
CPC (source: EP US)
A61K 8/025 (2013.01 - US); A61K 8/11 (2013.01 - EP US); A61K 8/85 (2013.01 - EP US); A61K 9/1647 (2013.01 - US); A61Q 19/00 (2013.01 - EP); B01J 13/04 (2013.01 - EP); B01J 13/203 (2013.01 - EP); C08J 9/0066 (2013.01 - US); C11D 3/3715 (2013.01 - EP US); C11D 3/3719 (2013.01 - EP); C11D 3/505 (2013.01 - EP US); A61K 2800/10 (2013.01 - EP US); C08J 2367/02 (2013.01 - US); C08J 2467/04 (2013.01 - US)
Citation (search report)
See references of WO 2019193094A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019193094 A1 20191010; BR 112020019798 A2 20210105; CN 111918713 A 20201110; EP 3774015 A1 20210217; JP 2021520294 A 20210819; MX 2020010544 A 20201106; US 2021024715 A1 20210128
DOCDB simple family (application)
EP 2019058500 W 20190404; BR 112020019798 A 20190404; CN 201980022618 A 20190404; EP 19715911 A 20190404; JP 2020554399 A 20190404; MX 2020010544 A 20190404; US 201917045691 A 20190404