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1. (WO2018039214) ESTERIFIED CELLULOSE ETHERS COMPRISING MALEYL GROUPS
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Pub. No.: WO/2018/039214 International Application No.: PCT/US2017/047989
Publication Date: 01.03.2018 International Filing Date: 22.08.2017
IPC:
C08B 13/00 (2006.01) ,C09D 101/32 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
13
Preparation of cellulose ether-esters
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
D
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
101
Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
08
Cellulose derivatives
32
Cellulose ether-esters
Applicants:
DOW GLOBAL TECHNOLOGIES LLC [US/US]; 2040 Dow Center Midland, MI 48674, US
Inventors:
PETERMANN, Oliver; DE
Agent:
JOHNSON, Christopher; US
Priority Data:
62/378,24923.08.2016US
Title (EN) ESTERIFIED CELLULOSE ETHERS COMPRISING MALEYL GROUPS
(FR) ÉTHERS DE CELLULOSE ESTÉRIFIÉS COMPRENANT DES GROUPES MALÉYLE
Abstract:
(EN) An esterified cellulose ether wherein - the ester groups are (i) maleyl groups or (ii) a combination of maleyl groups and aliphatic monovalent acyl groups, - the total degree of substitution of ester groups is from 0.05 to 0.65, - the degree of neutralization of the maleyl groups is less than 0.3, and - at least 85 wt.% of the esterified cellulose ether is soluble in a mixture of 2.5 weight parts of the esterified cellulose ether and 97.5 weight parts of water at 2 C, is for coating a dosage form and for the manufacture of capsules.
(FR) L'invention concerne un éther de cellulose estérifié dans lequel – les groupes ester sont (i) des groupes maléyle ou (ii) une combinaison de groupes maléyle et de groupes acyle monovalents aliphatiques, - le degré total de substitution des groupes ester est de 0,05 à 0,65, - le degré de neutralisation des groupes maléyle est inférieur à 0,3, et – au moins 85 % en poids de l'éther de cellulose estérifié sont solubles dans un mélange de 2,5 parties en poids de l'éther de cellulose estérifié et de 97,5 parties en poids d'eau à 2 C. L'éther de cellulose estérifié est destiné à enrober une forme posologique et à la fabrication de gélules.
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)