# US 2018/0022906 A1 · Modified polypropylene and polymer blends thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0022906 A1 - Document ID: US20180022906A1 - Status: Published application - Kind: A1 - Application number: 15/544,152 - Filed: 2016-01-15 - Published: 2018-01-25 - Earliest claimed: 2015-01-30 - Assignees: Braskem America, Inc. - Applicants: Braskem America, Inc. - Inventors: Elliot Carnevale; Riley Stevens; Kimberly Miller McLoughlin; William Scott Miller; Michael Robert Stephans; Steven Michael Krupinski - Web page: https://patentgrep.com/patent/US20180022906A1 ## CPC - C08L 23/12: Polypropene - C08J 5/18: Manufacture of films or sheets - C08J 9/0033: {containing sulfur} - C08J 9/0061: {characterized by the use of several polymeric components} - C08K 5/43: Compounds containing sulfur bound to nitrogen - C08J 2201/03: Extrusion of the foamable blend - C08J 2205/00: Foams characterised by their properties - C08J 2323/12: Polypropene - C08J 2323/32: by reaction with phosphorus- or sulfur-containing compounds - C08J 2423/12: Polypropene - C08L 2205/025: containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure - C08L 2205/03: containing three or more polymers in a blend - C08L 2205/035: containing four or more polymers in a blend - C08L 2205/06: having improved processability or containing aids for moulding methods - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract A propylene-based polymer composition is characterized by a melt strength at 190° C. of at least 20 cN, a melt drawability at 190° C. of at least 100 mm/s, and a flexural modulus at room temperature of at least 240,000 psi. The propylene-based polymer composition includes a propylene-based polymer resin having a crystallinity of at least 50% coupled with a poly(sulfonyl azide). ## Claims ### Claim 1 A propylene-based polymer composition comprising: a propylene-based polymer resin having a crystallinity of at least 50%; and a poly(sulfonyl azide); wherein the propylene-based polymer composition has a melt strength at 190° C. of at least 20 cN, a melt drawability at 190° C. of at least 100 mm/s, and a flexural modulus at room temperature of at least 240,000 psi. ### Claim 2 (depends on 1) The propylene-based polymer composition of claim 1, wherein the propylene-based polymer resin is a polypropylene homopolymer. ### Claim 3 (depends on 1) The propylene-based polymer composition of claim 1, wherein the composition comprises 500 ppm to 3000 ppm of the poly(sulfonyl azide), based on the total weight of the composition. ### Claim 4 (depends on 1) The propylene-based polymer composition of claim 1, wherein the composition comprises 1,000 ppm to 2,000 ppm of the poly(sulfonyl azide), based on the total weight of the composition. ### Claim 5 (depends on 1) The propylene-based polymer composition claim 1, wherein the propylene-based polymer resin has a crystallinity in the range of from 60% to 90%. ### Claim 6 (depends on 1) The propylene-based polymer composition claim 1, wherein the propylene-based polymer resin has a crystallinity in the range of from 70% to 80%. ### Claim 7 (depends on 1) The propylene-based polymer composition claim 1, wherein the composition has a melt strength at 190° C. in the range of from 25 cN to 100 cN. ### Claim 8 (depends on 1) The propylene-based polymer composition claim 1, wherein the composition has a heat distortion temperature under a load of 66 psi that is greater than 101° C. ### Claim 9 (depends on 1) The propylene-based polymer composition claim 1, wherein the composition has a melting temperature in the range of from 160° C. to 170° C. ### Claim 10 (depends on 1) The propylene-based polymer composition claim 1, wherein the composition has a ratio of melt strength to melt flow rate (MS/MFR) that is less than 10. ### Claim 11 (depends on 1) The propylene-based polymer composition claim 1, wherein the composition has a ratio of melt strength to melt flow rate (MS/MFR) that is greater than 18. ### Claim 12 (depends on 1) The propylene-based polymer composition claim 1, further comprising a first uncoupled polypropylene homopolymer resin. ### Claim 13 (depends on 12) The propylene-based polymer composition of claim 12, further comprising a second uncoupled polyolefin resin, wherein the second uncoupled polyolefin comprises a polypropylene homopolymer resin or a resin comprising a copolymer of ethylene and at least one C3-C12 cc-olefin comonomer. ### Claim 14 (depends on 13) The propylene-based polymer composition of claim 13, further comprising a third uncoupled polyolefin resin, wherein the third uncoupled polyolefin resin comprises a polypropylene homopolymer resin or a resin comprising a copolymer of ethylene and at least one C3-C12 α-olefin comonomer. ### Claim 15 (depends on 12) The propylene-based polymer composition of claim 12, further comprising an additive. ### Claim 16 (depends on 12) The propylene-based polymer composition of claim 12, further comprising a mineral filler. ### Claim 17 (depends on 12) The propylene-based polymer composition of claim 12, wherein the composition exhibits an Izod impact resistance at room temperature, measured according to ASTM D256-10e1, of greater than or equal to 1.20 ft-lb/in. ### Claim 18 (depends on 12) The propylene-based polymer composition of claim 12, wherein the composition exhibits a melt strength at 190° C. of greater than or equal to 30 cN. ### Claim 19 (depends on 12) The propylene-based polymer composition of claim 12, wherein the composition exhibits a melt drawbility at 190° C. of greater than or equal to 145 mm/s ### Claim 20 (depends on 12) The propylene-based polymer composition of claim 12, wherein the composition comprises 20-80% of the poly(sulfonyl azide)-coupled propylene-based polymer resin by total weight of the composition. ### Claim 21 (depends on 1) The propylene-based polymer composition claim 1, further comprising an uncoupled copolymer resin comprising a copolymer of ethylene and propylene. ### Claim 22 (depends on 1) The propylene-based polymer composition of claim 1, further comprising a coupled copolymer resin comprising a copolymer of ethylene and propylene. ### Claim 23 (depends on 1) A sheet or film comprising the propylene-based polymer composition claim 1. ### Claim 24 (depends on 1) A thermoformed sheet or film comprising the propylene-based polymer composition claim 1. ### Claim 25 (depends on 1) A rigid packaging substrate comprising the propylene-based polymer composition claim 1. ### Claim 26 A propylene-based polymer composition comprising: 1-99% (by total weight of the composition) of a poly(sulfonyl azide)-coupled propylene-based polymer resin, the poly(sulfonyl azide)-coupled propylene-based polymer resin comprising: 90-99% (by total weight of the poly(sulfonyl azide)-coupled propylene-based polymer resin) of a homopolymer propylene resin having a crystallinity of at least 50%; 1-10% (by total weight of the poly(sulfonyl azide)-coupled propylene-based polymer resin) of a copolymer resin comprising a copolymer of ethylene and propylene; and' 1000-2000 ppm (by total weight of the poly(sulfonyl azide)-coupled propylene-based polymer resin) of a poly(sulfonyl azide); and 1-99% (by total weight of the composition) of an uncoupled homopolymer propylene resin; wherein the propylene-based polymer composition has a melt strength at 190° C. of at least 20 cN, a melt drawability at 190° C. of at least 145 mm/s, an Izod impact resistance at room temperature (measured according to ASTM D256-10e1) of greater than or equal to 1.20 ft-lb/in, and a flexural modulus at room temperature of at least 240,000 psi. ### Claim 27 (depends on 26) The propylene-based polymer composition of claim 26, wherein the composition comprises 20-80% (by total weight of the composition) of the poly(sulfonyl azide)-coupled propylene-based polymer resin, and 20-80% (by total weight of the composition) of the uncoupled homopolymer propylene resin.