Patent SG-11201803721U-A (SG)
Title: Oil-in-water emulsions
Inventor: CRAIGE SIMON
IPC: G01N33/28
Filed: 2016-11-03
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau ires.. 00) ..... ..,„,„.1 (43) International Publication Date r ii May 2017(11.05.2017) WIPO I PCT (10) WO International 111111111111311111111111111111111111111111111111111111111111111111111111111111111111111111 2017/077302 Publication A3 Number (51) International Patent Classification: BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, C1OL 1/222 (2006.01) G01N 33/28 (2006.01) DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, C1OL 1/32 (2006.01) CO8L 95/00 (2006.01) HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, BO1F 17/00 (2006.01) G01N 33/18 (2006.01) KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, (21) International Application Number: OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, PCT/GB2016/053413 SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, (22) International Filing Date: TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, 3 November 2016 (03.11.2016) ZW. (25) Filing Language: English (8 4 ) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (26) Publication Language: English GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (30) Priority Data: TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, 1519615.7 6 November 2015 (06.11.2015) GB TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 1609042.5 23 May 2016 (23.05.2016) GB 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, (71) Applicants: QUADRISE INTERNATIONAL LTD SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, [GB/GB]; 1st Floor, Gillingham House, 38-44 Gillingham GW, KM, ML, MR, NE, SN, TD, TG). Street, London SW1V 1HU (GB). AKZO NOBEL CHEMICALS INTERNATIONAL B.V. [NL/NL]; Velp- Declarations under Rule 4.17: erweg 76, 6824 BM Arnhem (NL). — as to applicant's entitlement to apply for and be granted a patent (Rule 4.170) (72) Inventors: CRAIGE, Simon; Andaksvej 50, 4400 Kalund- 4.17(iv)) borg (DK). MILES, Jason Victor; c/o Quadrise Interna- — of inventorship (Rule tional Ltd, 1st Floor, Gillingham House, 38-44 Gillingham Published: Street, London SW1V 1HU (GB). SELSE, Dennis; Kor- vettgrand 4, 471 61 Myggenas (SE). KRIGSMAN, — with international search report (Art 21 ( 3 )) Joakim; Prastangsvagen 7, 783 35 Safer (SE). — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of (74) Agent: BROOKES BATCHELLOR LLP; 1 Boyne Park, Tunbridge Wells, Kent TN4 8EL (GB). amendments (Rule 48.2(h)) Designated (88) Date of publication of the international search report: (81) States (unless otherwise indicated, for every kind AE, AG, AL, AM, 15 June 2017 of national protection available): AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, Title: OIL EMULSIONS (54) -IN-WATER (57) : The invention relates to an oil-in-water emulsion comprising an oil phase and an aqueous phase, and a primary sur- er) factant, wherein the oil phase is dispersed in the aqueous phase, and wherein the oil-in-water emulsion has: an average droplet size .4! distribution (D[4,3]) in the range of from 3 to 15 pm and less than 3wt% of the droplets have a particle size of greater than 125 pm;a ei viscosity of greater than 100 and up to 700 mPas at 50°C +10% and 20 s -1 +10%; and a static stability of less than 5% residue after c:: : , centrifugation at 50°C +10% and 2000g +10% for 30 minutes +10%. A process for preparing such an oil-in-water emulsion com - en prises preparing an aqueous phase comprising a primary surfactant, heating a hydrocarbon-containing oil-phase, and blending the IN hydrocarbon-containing oil and the aqueous phase under conditions sufficient to foiin an oil-in-water emulsion. The invention also I N relates to methods for determining the static and dynamic stability of oil-in-water emulsions. Static stability can be determined by a 0 ---. method comprising the steps of: providing an oil-in-water emulsion; centrifuging the oil-in-water emulsion under predetermined conditions for a predetermined period of time; determining the amount of residue deposited from the oil-in-water emulsion after the 1:= predetermined period of time; and determining the oil-in-water emulsion's static stability. A method for determining the dynamic sta - N bility of an oil-in-water emulsion comprises the steps of: providing an oil-in-water emulsion; analysing the oil-in-water emulsion at a 0 first time; recirculating the oil-in-water emulsion in a recirculation loop; and analysing the oil-in- water emulsion at second time after recirculation has started; in which the oil-in-water emulsion's dynamic stability is determined based on the analysis at the first and second times.