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US 2014/0155513 A1Published application
Methods of Forming Compositions and Articles
AssigneeExxonMobil Chemical Patents Inc.
InventorsSunny Jacob, Michael J. Goncy, Peter D. Hartwell, Bruce R. Lundmark
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Abstract
A method for forming a composition comprising a propylene-based polymer and a co-agent is provided. The method comprises introducing a propylene-based polymer to an extruder and introducing the co-agent to the extruder at a position within the extruder where the temperature is from 23° C. to 125° C.
Claims25
A method of forming a composition, comprising:
- introducing to an extruder a propylene-based polymer containing from 5 wt % to 40 wt % of ethylene and/or C4-C20 α-olefins derived units and having a heat of fusion, as determined by DSC, of from 0.5 J/g to 80 J/g;
- introducing to the extruder a co-agent selected from multifunctional acrylates, multifunctional methacrylates, functionalized polybutadiene resins, functionalized cyanurate, allyl isocyanurate, and combinations thereof, wherein the co-agent is introduced at a position within the extruder where the temperature is from 23° C. to 125° C.;
- and
- forming the composition.
1 more element
A method of forming a film, a nonwoven, or a molded article, the method comprising:
- (a) introducing to an extruder (i) a propylene-based polymer containing from 5 wt % to 40 wt % of ethylene and/or C4-C20 α-olefins derived units and having a heat of fusion, as determined by DSC, of from 0.5 J/g to 80 J/g;
- and (ii) an antioxidant selected from hindered phenols, phosphites, hindered amines, and combinations thereof;
- and (iii) a co-agent selected from multifunctional acrylates, multifunctional methacrylates, functionalized polybutadiene resins, functionalized cyanurate, allyl isocyanurate, and combinations thereof;
- where the co-agent is introduced at a position within the extruder where the temperature is from 23° C. to 125° C.;
- (b) forming and extruding a composition comprising the propylene-based polymer, the antioxidant, and the co-agent;
- and
- (c) forming the film, nonwoven, or molded article comprising the composition.
4 more elements
Dependencies are inferred from the claim text.