Invention Grant
- Patent Title: Polyolefin based elastic compositions, methods of manufacturing thereof and articles comprising the same
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Application No.: US15747917Application Date: 2016-07-21
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Publication No.: US11230641B2Publication Date: 2022-01-25
- Inventor: Jacquelyn A. Degroot , Thor E. Gardarsson , Lisa S. Madenjian
- Applicant: DOW GLOBAL TECHNOLOGIES LLC
- Applicant Address: US MI Midland
- Assignee: DOW GLOBAL TECHNOLOGIES LLC
- Current Assignee: DOW GLOBAL TECHNOLOGIES LLC
- Current Assignee Address: US MI Midland
- Agency: Cantor Colburn LLP
- International Application: PCT/US2016/043317 WO 20160721
- International Announcement: WO2017/019446 WO 20170202
- Main IPC: C08L53/00
- IPC: C08L53/00 ; B32B5/02 ; B32B27/08 ; B32B27/12 ; B32B27/32 ; B32B27/28 ; B32B7/12 ; B32B37/15 ; B29C48/00 ; B29K23/00 ; B29K96/04 ; B29K105/00 ; B29L31/48 ; B32B38/00

Abstract:
Disclosed herein is a film comprising a polymer blend, the polymer blend comprising a first polyolefin elastomer having a weight average molecular weight of 120,000 to 350,000 grams per mole; and a second polyolefin elastomer having a weight average molecular weight of 15,000 to 75,000 grams per mole; wherein the overall melt index of the polymer blend is less than 8 g/10 minutes when measured as per ASTM D1238 at 2.16 kilograms at 190° C. Disclosed herein too is a method of manufacturing a film comprising blending a first polyolefin elastomer having a weight average molecular weight of 120,000 to 350,000 grams per mole; and a second polyolefin elastomer having a weight average molecular weight of 15,000 to 75,000 grams per mole to form a polymer blend; wherein the overall melt index of the polymer blend is less than 8 g/10 minutes when measured as per ASTM D1238 at 2.16 kilograms at 190° C.; and forming the polymer blend into a film.
Public/Granted literature
- US20180223092A1 POLYOLEFIN BASED ELASTIC COMPOSITIONS, METHODS OF MANUFACTURING THEREOF AND ARTICLES COMPRISING THE SAME Public/Granted day:2018-08-09
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