Two/three component compatible polyolefin compounds
A polyolefin compound including: A) at least one thermoplastic olefin copolymer including the reaction product of olefin 1 and olefin 2, wherein: olefin 1 is a C 2 based olefin and olefin 2 is a C 3 to C 8 α-olefin or olefin 1 is a C 3 based olefin and olefin 2 is a C 4 to C 8 α-olefin; B) at least one functional polymer, the functional polymer content in the polyolefin compound being between 1 and 75 weight percent of the combined components A and B; wherein the thermoplastic olefin copolymer and the functional polymer form a co-continuous phase; wherein: a) an 12 melt index of the polyolefin compound is from about 1 to about 15 as measured using ASTM D 1238; b) a Shore A hardness of the polyolefin compound is from about 55 to about 100 as measured using ASTM D2240; c) a flexural modulus of the polyolefin compound is from about 0.8 to about 30 kpsi as measured using ASTM D790.
1. A polyolefin compound comprising:
A) at least one thermoplastic olefin copolymer comprising the reaction product of olefin 1 and olefin 2, wherein:
olefin 1 is a C 2 based olefin and olefin 2 is a C 3 to C 8 α-olefin; or
olefin 1 is a C 3 based olefin and olefin 2 is a C 4 to C 8 α-olefin;
B) at least one functional polymer, the functional polymer content in the polyolefin compound being between 1 and 75 weight percent of the combined components A and B;
C) at least one thermoplastic olefin homopolymer,
wherein the olefin homopolymer forms a dispersed phase;
wherein the thermoplastic olefin copolymer and the functional polymer form a continuous phase;
wherein:
a) an I2 melt index of the polyolefin compound is from about 1 to about 15 g/10 min as measured using ASTM D1238 at 190° C.;
b) a Shore A hardness of the polyolefin compound is from about 55 to about 100 as measured using ASTM D2240;
c) a flexural modulus of the polyolefin compound is from about 0.8 to about 30 kpsi as measured using ASTM D790.
2. The polyolefin compound according to claim 1 , the component B comprising an ethylene vinyl acetate copolymer having a vinyl acetate content of not less than 40 weight percent of the ethylene vinyl acetate copolymer.
3. The polyolefin compound according to claim 1 , the component B comprising a maleic anhydride, amine, or hydroxyl grafted polypropylene or polyethylene.
4. The polyolefin compound according to claim 1 , wherein component B comprises a grafted olefin copolymer comprising an olefin-vinyl acetate-maleic anhydride terpolymer.
5. A composite comprising:
at least one shock absorbing layer comprising a polyolefin compound and at least one non-polyolefin substrate layer, the polyolefin compound comprising:
A) at least one thermoplastic olefin copolymer comprising the reaction product of olefin 1 and olefin 2, wherein:
olefin 1 is a C 2 based olefin and olefin 2 is a C 3 to C 8 α-olefin; or
olefin 1 is a C 3 based olefin and olefin 2 is a C 4 to C 8 α-olefin;
B) at least one functional polymer, the functional polymer content in the polyolefin compound being between 1 and 75 weight percent of the combined components A and B;
C) at least one thermoplastic olefin homopolymer, wherein the olefin homopolymer forms a dispersed phase;
wherein the thermoplastic olefin copolymer and the functional polymer form a continuous phase;
wherein:
a) an I2 melt index of the polyolefin compound is from about 1 to about 15 g/10 min as measured using ASTM D1238 at 190° C.;
b) a Shore A hardness of the polyolefin compound is from about 55 to about 100 as measured using ASTM D2240;
c) a flexural modulus of the polyolefin compound is from about 0.8 to about 30 kpsi as measured using ASTM D790.
6. The composite according to claim 5 , the component B comprising an ethylene vinyl acetate copolymer having a vinyl acetate content of not less than 40 weight percent of the ethylene vinyl acetate copolymer.
7. The composite according to claim 5 , the component B comprising a maleic anhydride, amine, or hydroxyl grafted polypropylene or polyethylene.
8. The polyolefin compound according to claim 5 , wherein component B comprises a grafted olefin copolymer comprising an olefin-vinyl acetate-maleic anhydride terpolymer.
9. A shoe composite having at least one shock absorbing layer comprising the polyolefin compound in claim 1 , and at least one non-polyolefin substrate layer.
10. A car bumper composite having at least one shock absorbing layer comprising the polyolefin elastomer in claim 1 , and at least one non-polyolefin substrate layer.
11. An artificial turf composite having at least one shock absorbing layer comprising a polyolefin elastomer comprising,
A) at least one thermoplastic olefin copolymer comprising the reaction product of olefin 1 and olefin 2, wherein:
olefin 1 is a C 2 based olefin and olefin 2 is a C 3 to C 8 α-olefin; or
olefin 1 is a C 3 based olefin and olefin 2 is a C 4 to C 8 α-olefin;
B) at least one functional polymer, the functional polymer content in the polyolefin compound being between 1 and 75 weight percent of the combined components A and B;
wherein the thermoplastic olefin copolymer and the functional polymer form a continuous phase;
wherein:
a) an I2 melt index of the polyolefin compound is from about 1 to about 15 g/10 min as measured using ASTM D1238 at 190° C.;
b) a Shore A hardness of the polyolefin compound is from about 55 to about 100 as measured using ASTM D2240;
c) a flexural modulus compound is from about 0.8 to about 30 kpsi as measured using ASTM D790; and
at least one non-polyolefin substrate layer.
12. The compound of claim 1 in the form of an adhesive.