EP 3931268 A1 20220105 - REDUCING HYGROSCOPICITY OF A MINERAL MATERIAL
Title (en)
REDUCING HYGROSCOPICITY OF A MINERAL MATERIAL
Title (de)
VERMINDERUNG DER HYGROSKOPIZITÄT EINES MINERALISCHEN MATERIALS
Title (fr)
RÉDUCTION DE L'HYGROSCOPICITÉ D'UN MATÉRIAU MINÉRAL
Publication
Application
Priority
- FR 1901932 A 20190226
- FR 2020000041 W 20200224
Abstract (en)
[origin: WO2020174132A1] The invention pertains to the field of materials based on calcium carbonate and in particular to the use thereof as a filler in polymeric plastics. The invention provides a method for reducing the hygroscopicity of a material (M) comprising calcium carbonate by treatment with at least one homopolymer grinding assistant (P) which is neutralized in a particular way. The invention pertains also to a method for producing said material (M), which is then of reduced hygroscopicity.
IPC 8 full level
C09C 1/02 (2006.01)
CPC (source: EP KR US)
C09C 1/021 (2013.01 - EP KR US); C09C 3/00 (2013.01 - KR); C09C 3/006 (2013.01 - US); C09C 3/041 (2013.01 - US); C09C 3/043 (2013.01 - US); C09C 3/08 (2013.01 - US); C09C 3/10 (2013.01 - US); C01P 2004/51 (2013.01 - EP KR); C01P 2004/61 (2013.01 - EP KR US); C01P 2004/62 (2013.01 - US); C01P 2006/12 (2013.01 - EP KR US); C01P 2006/82 (2013.01 - EP KR)
Citation (search report)
See references of WO 2020174132A1
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 2020174132 A1 20200903; CA 3129090 A1 20200903; CN 113412309 A 20210917; EP 3931268 A1 20220105; FR 3093012 A1 20200828; FR 3093012 B1 20210122; KR 20210132147 A 20211103; MX 2021008638 A 20210811; US 2022081569 A1 20220317
DOCDB simple family (application)
FR 2020000041 W 20200224; CA 3129090 A 20200224; CN 202080013294 A 20200224; EP 20721671 A 20200224; FR 1901932 A 20190226; KR 20217030755 A 20200224; MX 2021008638 A 20200224; US 202017424700 A 20200224