Abstract:
An elastomeric composition suitable for use in belts like transmission belts may comprise: from 5 to 100 phr of a propylene-α-olefin-diene (PEDM) terpolymer comprising 80 wt% to 97.5 wt% propylene, 2.5 wt% to 20 wt% a-olefin, and 0.5 wt% to 10 wt% diene, said wt% based on the weight of the PEDM terpolymer, and wherein the PEDM terpolymer has (a) Mooney viscosity (ML(1+4)) of 1 MU to 60 MU, (b) melt flow rate of 0.5 g/min to 100 g/min, and (c) a weight average molecular weight to n-average molecular weight (Mw/Mn) ratio of 1.5 to 3.0; and from 60 to 95 phr of an ethylene-based copolymer comprising 0 wt% to 95 wt% ethylene, 0 wt% to 10 wt% of one or more dienes, and 5 wt% to 60 wt% C3 to C12 α-olefin, said wt% based on the total weight of the ethylene -based copolymer.
Abstract:
본 발명은 유기전자장치용 접착필름 및 이를 포함하는 유기전자장치용 봉지재에 관한 것으로서, 보다 상세하게는 유기전자장치에 수분, 불순물 등의 불량원인 물질이 접근하지 못하도록 제거 및 차단하고, 수분이 제거될 때 발생할 수 있는 층간 박리현상이 일어나지 않는 동시에 내습성 및 내열성이 우수한 효과가 있는 유기전자장치용 접착필름 및 이를 포함하는 유기전자장치용 봉지재에 관한 것이다.
Abstract:
A high performance hot melt adhesive composition with higher heat stress and higher adhesion values at lower temperatures than a conventional hot melt adhesive is provided. Smaller quantities of the high performance hot melt may be used to provide similar performances as conventional hot melt adhesives.
Abstract:
The teachings herein are directed at multi-layer films, tie layer compositions for multi- layer films and related methods, and to polymeric adhesive compositions and methods for manufacturing polymeric adhesive compositions. The tie layer composition preferably adhere to polypropylene, and more preferably adheres to both polyethylene and polypropylene. The tie layer preferably includes a propylene based elastomer. The tie layer includes one or more thermoplastic polyolefins. The tie layer composition may include a grafted polyolefin, e.g., having one or more functional grafts. The polymeric adhesive compositions preferably adhere to both polypropylene surfaces and to polyethylene surfaces. The polymeric adhesive composition preferably comprises a minority amount (i.e., less than about 40 weight percent) of a propylene based elastomer polymer and a majority amount (i.e., greater than about 55 weight percent) of an ethylene containing polymer. Preferred methods for manufacturing the polymeric adhesive composition avoids thermal processing (e.g., a cycle of heating above the melting temperature and cooling below the crystallization temperature) of at least a portion (or even all) of the ethylene containing polymer after removing from a polymerization reactor and before compounding with the propylene based elastomer.
Abstract:
The present disclosure provides an adhesive composition. The adhesive composition includes: A) a propylene based plastomer or elastomer (PBPE) comprising up to 15 wt % units derived from ethylene and having (i) a Koenig B-value less than 1.0; (ii) a total unsaturation per mole of propylene from 0.010% to 0.030%; (iii) a density from 0.860 g/cc to 0.890 g/cc; (iv) a melt viscosity at 177°C from 1,000 mPa.s to 15,000 mPa.s; and (v) a weight average molecular weight from 20,000 to 50,000 g/mole.
Abstract:
Provided a composition comprising the following components: A) an olefin-based polymer; B) an anhydride and/or carboxylic acid functionalized olefin-based interpolymer comprising the following properties: i) a melt viscosity, at 190°C, less than, or equal to, 10,000 cP, and ii) a density from 0.900 to 0.950 g/cc.