Invention Grant
- Patent Title: Polymer composition
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Application No.: US17424943Application Date: 2020-01-27
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Publication No.: US12202964B2Publication Date: 2025-01-21
- Inventor: John Jamieson , Jari-Jussi Ruskeeniemi , Floran Prades , Noureddine Ajellal , Tua Sundholm , Jouni Purmonen , Angelica Maëlle Delphine Legras , Katja Klimke , Andreas Albrecht
- Applicant: BOREALIS AG
- Applicant Address: AT Vienna
- Assignee: BOREALIS AG
- Current Assignee: BOREALIS AG
- Current Assignee Address: AT Vienna
- Agency: Lowenstein Sandler LLP
- Priority: EP19153953 20190128
- International Application: PCT/EP2020/051900 WO 20200127
- International Announcement: WO2020/156989 WO 20200806
- Main IPC: C08L51/06
- IPC: C08L51/06 ; C08F222/06 ; C08L23/08 ; C09J151/06

Abstract:
The present invention relates to a polymer composition comprising (A) from 60 to 90 wt % of a non-elastomeric polyethylene; (B) from 9.0 to 38 wt % of an elastomer; wherein onto component (A) or components (A) and (B) an acid grafting agent (C) has been grafted in an amount of from 0.01 to 3.0 wt %, all based on the total weight of the polymer composition, and wherein the polymer composition has two distinct peaks and a valley between said peaks in the GPC curve and a Z value, determined from the areas below the two peaks of the GPC curve, of at least −0.3, wherein the Z-value is determined according to formula (I) Z=s/Abs(B−A) (I) wherein Abs(B−A) is the absolute value of (B−A); A=the area, between the tangent parallel to the MW axis going through log M (Min) and the LS15 signal, from log M of 5.1 to log M value where the LS signal is minimum log M (Min), in the log M range between 5.1 and 6; B=the area, between the tangent parallel to the MW axis going through log M (Min) and the LS 15 signal, from log M(Min) to the point where the LS signal is crossed again; and s is the slope between the two peaks of the GPC curve, defined at log M of 5.1 and 6, wherein the GPC curve is defined as the concentration normalized LS 15 signal along the molecular weight of conventional GPC, obtained from the GPC-VISC-LS analysis, a multi-layer structure such as a coated metal pipe, comprising one layer comprising said polymer composition and the use of said polymer composition as adhesive polymer composition and for the production of a multi-layer structure.
Public/Granted literature
- US20220098401A1 POLYMER COMPOSITION Public/Granted day:2022-03-31
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