EP 3500610 A1 20190626 - MAGNETIC NANOCAPSULES AS THERMOLATENT POLYMERIZATION CATALYSTS OR INITIATORS
Title (en)
MAGNETIC NANOCAPSULES AS THERMOLATENT POLYMERIZATION CATALYSTS OR INITIATORS
Title (de)
MAGNETISCHE NANOKAPSELN ALS THERMOLATENTE POLYMERISATIONSKATALYSATOREN ODER -INITIATOREN
Title (fr)
NANOCAPSULES MAGNÉTIQUES UTILISÉES EN TANT QUE CATALYSEURS OU INITIATEURS DE POLYMÉRISATION THERMOLATENTS
Publication
Application
Priority
- EP 16184291 A 20160816
- EP 2017070695 W 20170816
Abstract (en)
[origin: WO2018033550A1] The present invention relates to a process for producing special nanocapsules employable as thermolatent polymerization catalysts, in particular for the polymerization of polyurethanes, by means of a high shear process, wherein the process comprises: (i) emulsifying a first reaction mixture (a) in a continuous aqueous phase comprising at least one stabilizer, wherein the first reaction mixture, based on the total weight of the reaction mixture, comprises 10.0 to 99.0 wt% of a monomer mixture, wherein the monomer mixture, based on the total weight of the monomer mixture, comprises (a1) 2.5 to 19.0 wt% of at least one ethylenically monounsaturated C3-5-carboxylic acid monomer; (a2) 76.0 to 97.5 wt% of at least one ethylenically monounsaturated C3-5-carboxylic acid-C1-10-alkyl ester monomer; and (a3) 0.0 to 5.0 wt% of at least one monomer bearing at least two ethylenically unsaturated groups; (ii) emulsifying a second reaction mixture (b) in a continuous aqueous phase comprising at least one stabilizer, wherein the second reaction mixture, based on the total weight of the reaction mixture, comprises: (b1) 1.0 to 80.0 wt% of magnetic nanoparticles; (b2) optionally 0.0 to 70.0 wt% of at least one polymerization catalyst or initiator; (b3) optionally 0.0 to 89.0 wt% of at least one hydrophobic release agent; and (b4) optionally 0.0 to 10.0 wt% of at least one ultrahydrophobic compound distinct from the release agent; (iii) combining the first reaction mixture from step (i) and the second reaction mixture from step (ii); and (iv) polymerizing the monomers. The invention further relates to the nanocapsules produced by means of the described processess, to the use thereof, and to agents which contain these nanocapsules.
IPC 8 full level
B01J 35/00 (2006.01); B82Y 30/00 (2011.01); C08G 18/16 (2006.01); C08G 18/22 (2006.01); C08G 18/24 (2006.01); C08G 18/36 (2006.01); C08G 18/75 (2006.01)
CPC (source: EP KR US)
B01J 13/185 (2013.01 - US); C08F 212/36 (2013.01 - KR); C08F 220/06 (2013.01 - KR); C08F 220/14 (2013.01 - US); C08G 18/10 (2013.01 - KR); C08G 18/16 (2013.01 - KR); C08G 18/163 (2013.01 - EP US); C08G 18/165 (2013.01 - EP US); C08G 18/168 (2013.01 - EP US); C08G 18/22 (2013.01 - KR); C08G 18/222 (2013.01 - EP US); C08G 18/246 (2013.01 - EP US); C08G 18/36 (2013.01 - EP US); C08G 18/755 (2013.01 - EP US); C08K 3/22 (2013.01 - US); C09J 11/04 (2013.01 - US); C09J 11/08 (2013.01 - US); C09J 175/04 (2013.01 - US); C09K 3/1021 (2013.01 - EP US); B82Y 30/00 (2013.01 - EP KR US); B82Y 40/00 (2013.01 - EP KR US); C08F 2800/20 (2013.01 - US); C08F 2810/20 (2013.01 - US); C08K 2003/2275 (2013.01 - US); C08K 2201/01 (2013.01 - EP KR US); C08K 2201/011 (2013.01 - US); C09K 2200/0239 (2013.01 - US); C09K 2200/0625 (2013.01 - US); H01F 1/0306 (2013.01 - US)
Citation (search report)
See references of WO 2018033550A1
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 2018033550 A1 20180222; CA 3034134 A1 20180222; CN 109563233 A 20190402; EP 3500610 A1 20190626; JP 2019526435 A 20190919; KR 20190040980 A 20190419; MX 2019001894 A 20190710; US 2019176121 A1 20190613
DOCDB simple family (application)
EP 2017070695 W 20170816; CA 3034134 A 20170816; CN 201780049632 A 20170816; EP 17755471 A 20170816; JP 2019508927 A 20170816; KR 20197007524 A 20170816; MX 2019001894 A 20170816; US 201916277348 A 20190215