(19)
(11) EP 3 996 895 A1

(12)

(43) Date of publication:
18.05.2022 Bulletin 2022/20

(21) Application number: 20734982.0

(22) Date of filing: 02.07.2020
(51) International Patent Classification (IPC): 
B29C 48/10(2019.01)
B29C 48/49(2019.01)
B29C 55/28(2006.01)
B29K 23/00(2006.01)
 B29C 48/21(2019.01)
B29C 48/37(2019.01)
B29K 9/06(2006.01)
B29K 25/00(2006.01)
(52) Cooperative Patent Classification (CPC):
B29C 48/10; B29C 48/022; B29C 48/21; B29C 48/37; B29C 48/49; B29K 2009/06; B29K 2023/083; B29K 2025/08; B29C 55/28
(86) International application number:
PCT/EP2020/068708
(87) International publication number:
WO 2021/004898 (14.01.2021 Gazette 2021/02)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 11.07.2019 IT 201900011502

(71) Applicant: Industria Termoplastica Pavese S.p.A.
27100 Pavia (IT)

(72) Inventors:
  • CENTONZE, Massimo
    20090 Segrate (Milano) (IT)
  • BRACCO, Enrico
    27058 Voghera (Pavia) (IT)
  • LANATI, Simonetta
    27040 Mornico Losana (Pavia) (IT)

(74) Representative: Petruzziello, Aldo 
Racheli S.r.l. Viale San Michele del Carso, 4
20144 Milano
20144 Milano (IT)

   


(54) SYSTEM FOR THE PRODUCTION BY BLOWING EXTRUSION OF A FILM CONTAINING AT LEAST ONE LAYER OF HOT-MELT POLYMER AND/OR POLYMER WITH HIGH MELT FLOW INDEX