Patent SG-11201808155W-A (SG)
Title: Polyester containers and films with reduced gas permeability
Inventor: KAPOOR RAJAT
IPC: B65D1/02
Filed: 2017-04-11
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization IIIM141101110101011111 HO 111110111011110110111 HIDE 1111 III International Bureau 0.. .... .. ..... ..or::,„, (10) International Publication Number (43) International Publication Date WO 2017/180629 Al 19 October 2017(19.10.2017) WIPO I PCT (51) International Patent Classification: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, B65D 1/02 (2006.01) C08L 67/03 (2006.01) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, C08G 63/183 (2006.01) DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, (21) International Application Number: KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, PCT/US2017/027018 MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, (22) International Filing Date: NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, 11 April 2017 (11.04.2017) 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, (25) Filing Language: English ZA, ZM, ZW. (26) Publication Language: English (84) Designated States (unless otherwise indicated, for every (30) Priority Data: kind of regional protection available): ARIPO (BW, GH, 62/320,737 11 April 2016 (11.04.2016) US GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (71) Applicant: DAK AMERICAS LLC [US/US]; 5925 TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, Carnegie Boulevard, Suite 500, Charlotte, NC 28209 (US). DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, (72) Inventors: KAPOOR, Rajat; 101 Saluda Pointe Dr., Unit LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, 1124, Lexington, SC 29072 (US). KEZIOS, Peter, S.; SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, 7104 E. Creeks Edge Drive, Wilmington, NC 28409 (US). GW, KM, ML, MR, NE, SN, TD, TG). ROLLEND, George, F.; 38 Green Road, Amherst, NH Published: 03031 (US). — with international search report (Art. 21(3)) (74) Agent: KOSCHMIEDER, Stefan, U.; Oblon, Mcclelland, before the expiration of the time limit for amending the = Maier Neustadt, LLP, 1940 Duke Street, Alexandria, VA claims and to be republished in the event of receipt of = 22314 (US). amendments (Rule 48.2(h)) (81) Designated States (unless otherwise indicated, for every = kind of national protection available): AE, AG, AL, AM, = = (54) Title: POLYESTER CONTAINERS = = ---- PTR = — 3990 = = = — 0.37 -- 0.56 2000ppm AND FILMS DSC PTR 0.43 1000ppm TiO2 --- WITH Curves for TiO2 CR B90A ‘1 amorphous A crystallization REDUCED GAS PERMEABILITY Low IV Resins — PTR 0.44 0.52 2.8wt%a resin IPA — peaks B6 0.58 Monofil 1st cycle SPR > & = - f.- - : 2 71 - = c7, _ - (7,' Il No tg weak or Tcc peaks for 0.44 already crystallization for 0.37 or highly peaks, 0.43(Ti02), crystallized ,.. Tc 2nd cycle 3rd cycle Low IV Readily crystallized .4 01 N 0 50 100 150 200 250 300 , tD 0 Temperature / ° C tie FIG. 1 ,-1 IN 1-1 (57) : Three independent approaches to the reduction of gas molecule permeability through a polyethylene terephthalate N (PET) polyester film or container wall by increasing the mechanically or thermally induced crystallinity or the overall crystallinity level of a single or multilayer container, where the three approaches may be employed independently or in combination with one an - 0 other.