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1. (WO2019042887) SPHERICAL SILICA FOR TUBULE OCCLUSION
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Pub. No.: WO/2019/042887 International Application No.: PCT/EP2018/072875
Publication Date: 07.03.2019 International Filing Date: 24.08.2018
IPC:
A61Q 11/02 (2006.01) ,A61K 8/00 (2006.01) ,C01B 33/18 (2006.01) ,C01B 33/193 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
Q
SPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
11
Preparations for care of the teeth, of the oral cavity or of dentures, e.g. dentifrices or toothpastes; Mouth rinses
02
Preparations for deodorising, bleaching or disinfecting dentures
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8
Cosmetics or similar toilet preparations
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
33
Silicon; Compounds thereof
113
Silicon oxides; Hydrates thereof
12
Silica; Hydrates thereof, e.g. lepidoic silicic acid
18
Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
33
Silicon; Compounds thereof
113
Silicon oxides; Hydrates thereof
12
Silica; Hydrates thereof, e.g. lepidoic silicic acid
18
Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
187
by acidic treatment of silicates
193
of aqueous solutions of silicates
Applicants:
EVONIK DEGUSSA GMBH [DE/DE]; Rellinghauser Straße 1-11 45128 Essen, DE
Inventors:
CORNELIUS, John M.; US
HAGAR, William J.; US
GALLIS, Karl W.; US
NASSIVERA, Terry W.; US
Priority Data:
62/550,72528.08.2017US
Title (EN) SPHERICAL SILICA FOR TUBULE OCCLUSION
(FR) SILICE SPHÉRIQUE POUR OCCLUSION DE TUBULES
Abstract:
(EN) Spherical silica and/or silicate particles having a d50 median particle size from 1 to 5µm, a d95 particle size less than 8µm, an oil absorption from 40 to 100 cc/100g, a pack density from 20 to 60lb/ft3, and a sphericity factor (S80) of at least 0.9,are disclosed, as well as methods for making these spherical particles, and dentifrice compositions containing the spherical particles.
(FR) L'invention concerne des particules sphériques de silice et/ou de silicate ayant une taille de particule médiane d50 de 1 à 5 µm, une taille de particule d95 inférieure à 8 µm, une capacité d'absorption d'huile de 40 à 100 cc/100 g, une densité à l'état tassé de 20 à 60 lb/ft3, et un facteur de sphéricité (S80) d'au moins 0,9, ainsi que des procédés de préparation desdites particules sphériques, et des compositions de dentifrice les contenant.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)