# US 2014/0155513 A1 · Methods of Forming Compositions and Articles > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0155513 A1 - Document ID: US20140155513A1 - Status: Published application - Kind: A1 - Application number: 13/691,252 - Filed: 2012-11-30 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: ExxonMobil Chemical Patents Inc. - Inventors: Sunny Jacob; Michael J. Goncy; Peter D. Hartwell; Bruce R. Lundmark - Web page: https://patentgrep.com/patent/US20140155513A1 ## CPC - C08L 23/16: Ethylene-propylene or ethylene-propylene-diene copolymers - C08F 255/02: on to polymers of olefins having two or three carbon atoms - C08F 255/06: on to ethylene-propylene-diene terpolymers {(C08F255/023 takes precedence)} - C08L 23/12: Polypropene - C08K 5/0025: {Crosslinking or vulcanising agents; including accelerators} - C08K 5/103: with polyalcohols - C08K 5/34924: {containing cyanurate groups; Tautomers thereof} - C08K 5/526: with hydroxyaryl compounds - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## 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. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) The method of claim 1, wherein the co-agent is introduced at a position within the extruder where the temperature is from 50° C. to 100° C. ### Claim 3 (depends on 1) The method of claim 1, wherein the co-agent is introduced to the extruder using a pump selected from a progressive cavity pump, a diaphragm pump, and a peristaltic pump. ### Claim 4 (depends on 3) The method of claim 3, wherein the pump is operated at shear rate of less than 100 sec−1. ### Claim 5 (depends on 1) The method of claim 1, wherein the co-agent is introduced to the extruder downstream of where the propylene-based polymer is introduced to the extruder. ### Claim 6 (depends on 1) The method of claim 1, wherein the co-agent is introduced at a distance within 0.30 L from the feed throat of the extruder where the propylene-based polymer is introduced to the extruder, wherein L is the distance from said feed throat to the end of the extruder. ### Claim 7 (depends on 1) The method of claim 1, wherein the co-agent is introduced is introduced at a distance within 0.15 L from the feed throat of the extruder where the propylene-based polymer is introduced to the extruder, wherein L is the distance from said feed throat to the end of the extruder. ### Claim 8 (depends on 1) The method of claim 1, wherein the extruder is a single screw extruder or a twin screw extruder. ### Claim 9 (depends on 1) The method of claim 1, wherein the propylene-based polymer has a melting point of 100° C. or less. ### Claim 10 (depends on 1) The method of claim 1, wherein the propylene-based polymer has a triad tacticity, as determined by 13C NMR, of from 75% to 99%. ### Claim 11 (depends on 1) The method of claim 1, wherein the propylene-based polymer comprises units derived from at least one of ethylene, butene, hexene, and octene. ### Claim 12 (depends on 1) The method of claim 1, wherein the propylene-based polymer comprises from 0.2 wt % to 24 wt % of one or more diene derived units based on the weight of the propylene-based polymer. ### Claim 13 (depends on 1) The method of claim 1, wherein the propylene-based polymer comprises from 0.5 wt % to 10 wt % of 5-ethylidene-2-norbornene based on the weight of the propylene-based polymer. ### Claim 14 (depends on 1) The method of claim 1, wherein the composition comprises from 0.1 wt % to 15 wt % of the co-agent based on the weight of the composition. ### Claim 15 (depends on 1) The method of claim 1, wherein the co-agent is a multifunctional methacrylate. ### Claim 16 (depends on 1) The method of claim 1 further comprising introducing to the extruder an antioxidant selected from the group consisting of hindered phenols, phosphites, hindered amines, and combinations thereof. ### Claim 17 (depends on 16) The method of claim 16, wherein the antioxidant is introduced to the extruder upstream of where the co-agent is introduced. ### Claim 18 (depends on 16) The method of claim 16, wherein the composition comprises from 0.1 wt % to 5 wt % of the antioxidant based on the weight of the composition. ### Claim 19 (depends on 1) The method of claim 1 further comprising introducing to the extruder at least one of a secondary elastomeric component or a polyolefinic thermoplastic resin. ### Claim 20 (depends on 1) The method of claim 1 further comprising crosslinking the composition using electron beam radiation having an e-beam dosage of about 200 kGy or less. ### Claim 21 (depends on 1) A composition made by the method of claim 1. ### Claim 22 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. ### Claim 23 (depends on 22) The method of claim 22, wherein the co-agent is introduced at a position within the extruder where the temperature is from 50° C. to 100° C. ### Claim 24 (depends on 22) The method of claim 22, wherein the co-agent is introduced using a pump selected from a progressive cavity pump, a diaphragm pump, and a peristaltic pump. ### Claim 25 (depends on 22) The method of claim 22, wherein the composition is not pelletized before being introduced to an apparatus for forming the film, nonwoven, or molded article.