Strapping and methods of making the same
An article includes about 85.5 wt % to about 99.85 wt % of a polyester, and about 0.15 wt % to about 4.5 wt % of a polyolefin co-polymer, where the polyolefin co-polymer is polymerized from monomers including about 10 wt % to about 90 wt % of propylene or one or more (meth)acrylates, and about 10 wt % to about 90 wt % of an olefin other than propylene or a (meth)acrylate, where the article is a strapping article.
1. An article comprising:
a polymer blend comprising:
about 85.5 wt % to about 99.85 wt % of a polyester;
about 0.15 wt % to about 4.5 wt % of a polyolefin co-polymer;
optionally about 0.01 wt % to about 10 wt % of a polyamide or a polycarbonate; and
optionally a (meth)acrylate selected from the group consisting of butyl acrylate, methyl acrylate, glycidyl (meth)acrylate, methyl (meth)acrylate, and a combination of any two or more thereof;
wherein:
the polyester has an intrinsic viscosity of 0.83 dl/g, 0.84 dl/g, or 0.85 dl/g;
the polyester is selected from the group consisting of polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, polytetramethylene terephthalate, polycyclohexanedimethylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polyethylene isophthalate, and a combination of any two or more thereof; and
the polyolefin co-polymer is polymerized from monomers comprising:
about 26 wt % to about 90 wt % propylene; and
about 10 wt % to about 74 wt % of the olefin other than propylene
wherein the article is a strapping article free of polyethylene, polypropylene, or mixtures thereof.
2. The article of claim 1 , wherein: the article includes the about 0.01 wt % to about 10 wt % of the polyamide or polycarbonate.
3. The article of claim 1 , wherein the article includes the polyamide, and wherein the polyamide is nylon.
4. The article of claim 1 , wherein the olefin other than propylene is present about 30 wt % to about 60 wt %.
5. The article of claim 1 , wherein the olefin other than propylene is present from 61 wt % to 74 wt %.
6. The article of claim 1 , wherein the polyolefin co-polymer is polymerized from monomers consisting of:
about 26 wt % to about 39 wt % propylene; and
about 61 wt % to about 74 wt % of the olefin other than propylene.
7. The article of claim 1 , wherein the polyolefin co-polymer is polymerized from monomers consisting of:
about 26 wt % to about 39 wt % propylene;
about 61 wt % to about 74 wt % of the olefin other than propylene; and
about 0.1 wt % to about 10 wt % of a diene.
8. The article of claim 1 , wherein the one or more olefins other than propylene is a diene.
9. The article of claim 8 , wherein the diene is ethylidene norbornene (ENB), norbornadiene, oxanorbornadiene, dicyclopentadiene, or a 1,3-diene.
10. The article of claim 1 , wherein the olefin other than propylene is ethylene.
11. A method of manufacturing a strapping article, the method comprising:
forming a mixture comprising:
about 85.5 wt % to about 99.85 wt % of a polyester;
about 0.15 wt % to about 4.5 wt % of a polyolefin co-polymer;
optionally about 0.01 wt % to about 10 wt % of a polyamide or a polycarbonate; and
optionally a (meth)acrylate selected from the group consisting of butyl acrylate, methyl acrylate, glycidyl (meth)acrylate, methyl (meth)acrylate, and a combination of any two or more thereof;
heating the mixture; and
extruding the heated mixture to form the strapping article;
wherein:
the polyester has an intrinsic viscosity of 0.83 dl/g, 0.84 dl/g, or 0.85 dl/g;
the mixture is free of polyethylene, polypropylene, or mixtures thereof;
the polyester is selected from the group consisting of polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, polytetramethylene terephthalate, polycyclohexanedimethylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polyethylene isophthalate, and a combination of any two or more thereof; and
the polyolefin co-polymer is polymerized from monomers comprising:
about 10 wt % to about 90 wt % of propylene; and
about 10 wt % to about 90 wt % of an olefin other than propylene.
12. The method of claim 11 , wherein the strapping article comprises the polyamide, and wherein the polyamide is nylon.
13. The method of claim 11 , wherein the polyolefin co-polymer is polymerized from
about 26 wt % to about 90 wt % propylene; and
about 10 wt % to about 74 wt % of the olefin other than propylene.