(19)
(11) EP 3 910 022 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A3)

(48) Corrigendum issued on:
27.04.2022 Bulletin 2022/17

(88) Date of publication A3:
26.01.2022 Bulletin 2022/04

(43) Date of publication:
17.11.2021 Bulletin 2021/46

(21) Application number: 21160156.2

(22) Date of filing: 02.03.2021
(51) International Patent Classification (IPC): 
C08L 23/16(2006.01)
C08J 5/18(2006.01)
C08L 23/08(2006.01)
(52) Cooperative Patent Classification (CPC):
C08L 23/16; C08L 23/0823; C08J 5/18; C08J 2323/08; C08J 2423/16; C08J 2323/16; C08J 2491/00
 
C-Sets:
  1. C08L 23/16;
  2. C08L 23/16;
  3. C08L 23/0823;

(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: 24.03.2020 JP 2020052225

(71) Applicant: SUMITOMO CHEMICAL COMPANY LIMITED
Chuo-ku Tokyo 104-8260 (JP)

(72) Inventors:
  • KUROKAWA, Ryosuke
    Ichihara-shi, Chiba 299-0195 (JP)
  • HIRAGUCHI, Yukari
    Ichihara-shi, Chiba 299-0195 (JP)

(74) Representative: Winter, Brandl - Partnerschaft mbB 
Alois-Steinecker-Straße 22
85354 Freising
85354 Freising (DE)

   


(54) THERMOPLASTIC ELASTOMER COMPOSITION


(57) There is provided a thermoplastic elastomer composition capable of maintaining patterns and shapes such as embossing even after subjected to processing at relatively severe conditions such as vacuum molding, attaining excellent processability, and giving excellent outer appearance to a molded product molded therefrom.
A thermoplastic elastomer composition comprising (A) ethylene rubber by 10 to 90wt%, and (B) propylene polymer by 10 to 90wt%, where a total amount of the thermoplastic elastomer composition is 100wt%,
in which a pressed sheet obtained by press-molding the thermoplastic elastomer composition under molding conditions has a sink-in temperature of 115°C or higher, where the sink-in temperature is measured based on JIS K7196-1991 as a temperature measured when a pressure load sinks in from a sheet surface by 100 µm, and the molding conditions are such that the thermoplastic elastomer composition is hot press molded at a temperature of 200°C with a maximum pressure of 10 MPa for 5 min, and thereafter cold press molded at a temperature of 23°C with a maximum pressure of 10 MPa for 5 min, so as to prepare the pressed sheet.