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AssigneeExxonMobil Chemical Patents Inc.
InventorsPawan Kumar Agarwal, Weiqing Weng, Aspy K. Mehta, Armenag H. Dekmezian, Main Chang, Rajan K. Chudgar, Olivier Jean Georjon, Chon-Yie Lin, Michael C. Chen, Galen C. Richeson, Palanisamy Arjunan
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The co-polymerization reaction of one or more olefin monomers, such as propylene, with α,ω-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of α,ω-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115° C. to 135° C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1° C. to 8° C. More desirably, one of the crystalline populations has a melting point in the range from 152° C. to 158° C. and another crystalline population has a melting point in the range from 142° C. to 148° C.
An article comprising copolymer comprising from 90 to 99.999 weight percent of olefin units, from 0.001 to 2.000 weight percent of α,ω-diene units, wherein the copolymer has a weight average molecular weight in the range from 50,000 to 2,000,000, a melt flow rate in the range from 0.1 dg/min to 100 dg/min, and the copolymer has a first melting point in a first melting point range and a second melting point in a second melting point range and wherein the first melting point range is distinguishable from the second melting point range by a temperature range of from 1° C. to 8° C.
An article comprising a skin layer having a thickness in a range of from 10 μm to 120 μm, formed from a copolymer comprising:
An article comprising a copolymer comprising from 90 to 99.9 weight % propylene, 0.1 to 8 weight % of ethylene or a C4 to C20 alpha-olefin, a C4 to C20 diolefin having an internal olefin, and 0.0001 to 2 weight % of an alpha, omega-diene, wherein the copolymer has an MFR of from 0.1 to 50 dg/min, an Mw of from 50,000 to 2,000,000 and two melting points, one melting point in the range of from 152 to 158° C. and the second melting point in the range of from 142 to 148° C.
An article comprising copolymer comprising from 90 to 99.999 weight percent of olefin units, from 0.001 to 2.000 weight percent of α,ω-diene units, wherein the copolymer has a weight average molecular weight in the range from 50,000 to 2,000,000, a melt flow rate in the range from 0.1 dg/min to 100 dg/min, and the melting temperature of the copolymer minus the crystallization temperature of the polymer is in the range of from 25° C. to 390° C.
An article comprising a skin layer having a thickness in a range of from 10 μm to 120 μm, formed from a copolymer comprising:
An article comprising a copolymer comprising from 90 to 99.9 weight % propylene, 0.1 to 8 weight % of ethylene or a C4 to C20 alpha-olefin, a C4 to C20 diolefin having an internal olefin, and 0.0001 to 2 weight % of an alpha, omega-diene, wherein the copolymer has an NER of from 0.1 to 50 dg/min, an Mw of from 50,000 to 2,000,000 and two melting points, one melting point in the range of from 152 to 158° C. and the second melting point in the range of from 142 to 148° C.
An article comprising a copolymer comprising from 90 to 99.9 weight % propylene, 0.1 to 8 weight % of one or more of ethylene, butene-1, pentene-1, hexene-1, heptene-1,4-methyl-1-pentene, 3-methyl-1-pentene, 4-methyl-1-hexene, 5-methyl-1-hexene, 1-octene, 1-decene, 1-undecene, and 1-dodecene, and 0.0001 to 2 weight % of one or more alpha, omega-diene selected from the group consisting of 1,6-heptadiene, 1,7-octadiene, 1,8-nonadiene, 1,9-decadiene, 1,10-undecadiene, 1,11-dodecadiene, 1,12-tridecadiene, and 1,13-tetradecadiene, wherein the copolymer has an MFR of from 0.1 to 50 dg/min, an Mw of from 50,000 to 1,000,000 and two melting points, one melting point in the range of from 152 to 158° C. and the second melting point in the range of from 142 to 148° C.
An article comprising copolymer comprising from 90 to 99.999 weight percent of olefin units, from 0.001 to 2.000 weight percent of α,ω-diene units, wherein the copolymer has a weight average molecular weight in the range from 50,000 to 2,000,000, a melt flow rate in the range from 0.1 dg/min to 100 dg/min, and the copolymer has a first melting point in the range of 152 to 158° C. and a second melting point in the range of 142° C. to 148° C.
An article formed from a propylene copolymer, said copolymer comprising:
An article, comprising a propylene copolymer, said propylene copolymer comprising propylene and 1,9-decadiene, and said copolymer having:
An article formed from a propylene copolymer, said propylene copolymer comprising:
Dependencies are inferred from the claim text.