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1. (WO2019006377) COMPOSITIONS FOR IMPROVED PRODUCTION OF ACRYLIC ACID
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Pub. No.: WO/2019/006377 International Application No.: PCT/US2018/040412
Publication Date: 03.01.2019 International Filing Date: 29.06.2018
IPC:
C07C 51/09 (2006.01) ,C07C 57/04 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
51
Preparation of carboxylic acids or their salts, halides, or anhydrides
09
from carboxylic acid esters or lactones
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
57
Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
02
with only carbon-to-carbon double bonds as unsaturation
03
Monocarboxylic acids
04
Acrylic acid; Methacrylic acid
Applicants:
NOVOMER, INC. [US/US]; 1 Bowdoin Square, Suite 300 Boston, Massachusetts 02114, US
Inventors:
SOOKRAJ, Sadesh H.; US
SHERRY, Kyle E.; US
Agent:
RICORDATI III, Raymond; US
Priority Data:
15/640,32430.06.2017US
Title (EN) COMPOSITIONS FOR IMPROVED PRODUCTION OF ACRYLIC ACID
(FR) COMPOSITIONS PERMETTANT UNE PRODUCTION AMÉLIORÉE D'ACIDE ACRYLIQUE
Abstract:
(EN) The present invention is directed to compositions which may undergo thermolysis to produce a higher purity acrylic acid product. In preferred embodiments of the present invention, the compositions comprise polypropiolactone and one or more active salts. The one or more active salts may catalyze thermolysis of the polypropiolactone so that the polymer depolymerizes into acrylic acid monomers. Certain concentrations of the one or more active salts result in higher purity acrylic acid products of thermolysis. In certain preferred embodiments, the one or more active salts include an acrylate group which may decompose under thermolysis to provide acrylic acid and thus decrease the concentration of undesirable contaminants in the acrylic acid product. In certain preferred embodiment, the one or more active salts comprise sodium acrylate.
(FR) La présente invention concerne des compositions qui peuvent subir une thermolyse afin de fournir un produit d'acide acrylique de pureté supérieure. Selon des modes de réalisation préférés de la présente invention, les compositions comprennent de la polypropiolactone et un ou plusieurs sels actifs. Selon l'invention, au moins un sel actif peut catalyser la thermolyse de la polypropiolactone de sorte que le polymère se dépolymérise en monomères d'acide acrylique. Certaines concentrations d'un ou de plusieurs sels actifs permettent d'obtenie des produits d'acide acrylique de haute pureté de thermolyse. Selon certains modes de réalisation préférés de l'invention, le sel actif comprend ou les sels actifs comprennent un groupe acrylate qui peut se décomposer sous thermolyse pour fournir de l'acide acrylique et diminuer ainsi la concentration de contaminants indésirables dans le produit d'acide acrylique. Selon un certain mode de réalisation préféré, le sel actif comprend ou les sels actifs comprennent de l'acrylate de sodium.
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)