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1. (WO2018122293) LOW EMISSION POLYPROPYLENE FOAM SHEETS
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Pub. No.: WO/2018/122293 International Application No.: PCT/EP2017/084693
Publication Date: 05.07.2018 International Filing Date: 28.12.2017
IPC:
C08J 9/36 (2006.01) ,C08L 23/10 (2006.01) ,C08J 9/14 (2006.01) ,C08J 9/16 (2006.01) ,C08J 9/22 (2006.01)
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
9
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
36
After-treatment
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
10
Homopolymers or copolymers of propene
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
9
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
04
using blowing gases generated by a previously added blowing agent
12
by a physical blowing agent
14
organic
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
9
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
16
Making expandable particles
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
9
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
22
After-treatment of expandable particles; Forming foamed products
Applicants:
BOREALIS AG [AT/AT]; IZD Tower Wagramer Str. 17-19 1220 Vienna, AT
Inventors:
BRAUN, Hermann; AT
REICHELT, Norbert; AT
FUCHS, Andreas; AT
STANDLER, Alexander; AT
DE MINK, Paul; null
GAHLEITNER, Gahleitner,; AT
Agent:
MAIWALD PATENTANWALTS- UND RECHTSANWALTSGESELLSCHAFT MBH; Berthold Lux Elisenhof, Elisenstr. 3 80335 München, DE
Priority Data:
16207541.030.12.2016EP
Title (EN) LOW EMISSION POLYPROPYLENE FOAM SHEETS
(FR) FEUILLES DE MOUSSE DE POLYPROPYLÈNE À FAIBLE ÉMISSION
Abstract:
(EN) The invention relates to a process for the production of a foam having low organic compounds emissions, to polypropylene foamed products obtainable by the process, and to a process for the manufacture of low organic compounds emission articles comprising a foam for use in cars and food packaging. The process comprises the steps of: a) providing a foam comprising a propylene composition comprising a high melt strength propylene (HMS-PP) homopolymer or copolymer or combinations thereof, said HMS-PP foam having a melt strength of at least 25 cN at a maximum speed of at least 200 mm/s and a melting temperature of at least 135°C and b) subjecting the HMS-PP foam to a thermal treatment at a temperature Tt which is preferably between 5 and 15 °C below the melting temperature Tm of the HMS-PP for a duration between preferably 1 and 10 minutes.
(FR) L'invention concerne un procédé de production d'une mousse ayant de faibles émissions de composés organiques, des produits en mousse de polypropylène pouvant être obtenus par le procédé, et un procédé de fabrication d'articles à faible émission de composés organiques comprenant une mousse destinée à être utilisée dans des voitures et des emballages alimentaires. Le procédé comprend les étapes de : a) fourniture d'une mousse comprenant une composition de propylène comprenant un homopolymère ou copolymère de propylène à haute résistance à l'état fondu (HMS-PP) ou des combinaisons de ceux-ci, ladite mousse HMS-PP ayant une résistance à l'état fondu d'au moins 25 cN à une vitesse maximale d'au moins 200 mm/s et une température de fusion d'au moins 135 °C et b) la soumission de la mousse HMS-PP à un traitement thermique à une température Tt qui est de préférence comprise entre 5 et 15 °C en dessous de la température de fusion Tm du HMS-PP pendant une durée comprise de préférence entre 1 et 10 minutes.
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)