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1. (WO2019067239) MODIFIED POLYETHYLENE COMPOSITIONS AND METHOD FOR MAKING THE SAME
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Pub. No.: WO/2019/067239 International Application No.: PCT/US2018/051151
Publication Date: 04.04.2019 International Filing Date: 14.09.2018
IPC:
B29C 49/00 (2006.01) ,B29C 49/04 (2006.01) ,C08J 3/22 (2006.01) ,C08J 5/18 (2006.01) ,C08L 23/04 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
49
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
49
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
02
Combined blow-moulding and manufacture of the preform or the parison
04
Extrusion blow-moulding
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3
Processes of treating or compounding macromolecular substances
20
Compounding polymers with additives, e.g. colouring
22
using masterbatch techniques
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5
Manufacture of articles or shaped materials containing macromolecular substances
18
Manufacture of films or sheets
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02
not modified by chemical after-treatment
04
Homopolymers or copolymers of ethene
Applicants:
DOW GLOBAL TECHNOLOGIES LLC [US/US]; 2040 Dow Center Midland, MI 48674, US
PBBPOLISUR S.R.L. [AR/AR]; Boulevard Cecilia Grierson 355 - Piso 25 C1107CPG City of Buenos Aires, AR
Inventors:
BALASUBRAMANIAM, Sharavanan; US
DEMIRORS, Mehmet; US
KARJALA, Teresa P.; US
GOMES, Jorge Caminero; BR
RAIMONDI, Guillermo A.; AR
LÜTKENHAUS, Davidson; BR
TRICOTTI, Marie De Luján; AR
Agent:
RAWLS, Judith; US
Priority Data:
62/563,87227.09.2017US
Title (EN) MODIFIED POLYETHYLENE COMPOSITIONS AND METHOD FOR MAKING THE SAME
(FR) COMPOSITIONS DE POLYÉTHYLÈNE MODIFIÉES ET PROCÉDÉ POUR LES PRÉPARER
Abstract:
(EN) A method for increasing the melt strength and/or low shear viscosity of a polyethylene resin, the method comprising: a) providing a polyethylene composition comprising the reaction product of ethylene and optionally, one or more alpha-olefin comonomers, wherein the polyethylene composition is characterized by the following properties: a density ranging from 0.900 g/cm3 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) ranging from 2.6 to 3.5, and from 0.10 to 0.27 vinyl groups per 1,000 total carbon atoms; b) providing a masterbatch composition comprising a free radical generator and a polyethylene resin, wherein the free radical generator has a half-life at 220C of less than 200 seconds, and a decomposition energy higher than -250 kJ/mol, and wherein the polyethylene resin has a density ranging from 0.900 g/cm3 to 0.970 g/cm3, melt index ranging from 0.01 g/10 min to 100 g/10 min; and c) reacting the polyethylene composition with the masterbatch composition to form a modified polyethylene composition.
(FR) La présente invention décrit un procédé d’accroissement du pouvoir de fusion et/ou de la viscosité à faible cisaillement d’une résine de polyéthylène, le procédé comprenant : a) la fourniture d’une première composition de polyéthylène comprenant le produit de réaction d'éthylène et éventuellement, un ou plusieurs comonomères d'alpha-oléfine, la composition de polyéthylène étant caractérisée en ce qu'elle présente les propriétés suivantes: une densité s’étendant de 0,900 g/cm3 à 0,970 g/cm3, une répartition des poids moléculaires (Mw/Mn) s’étendant de 2,6 à 3,5, et de 0,1 à 0,27 groupes vinyliques pour un total de 1000 atomes de carbone; b) la préparation d’une composition de mélange maître comprenant un générateur de radicaux libres et une résine de polyéthylène, le générateur de radicaux libres présentant une demi-vie à 220°C inférieure à 200 secondes, et une énergie de décomposition supérieure à -250 kJ/mol, et la résine de polyéthylène présentant une densité s’étendant de 0,900 g/cm3 à 0,970 g/cm3, un indice de fusion s’étendant de 0,01 g/10 min à 100 g/10 min ; et c) la réaction de la composition de polyéthylène avec la composition de mélange maître pour former une composition de polyéthylène modifiée.
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)