A composite material which is elastic, which exhibits a resistive load under deformation which increases with the rate of deformation, which is unfoamed or foamed, comminuted or uncomminuted and which comprises i) a first polymer-based elastic material and ii) a second polymer-based material, differ
A composite material which is elastic, which exhibits a resistive load under deformation which increases with the rate of deformation, which is unfoamed or foamed, comminuted or uncomminuted and which comprises i) a first polymer-based elastic material and ii) a second polymer-based material, different from i), which exhibits dilatancy in the absence of i) wherein ii) is entrapped in a solid matrix of i), the composite material being unfoamed or, when foamed, preparable by incorporating ii) with i) prior to foaming.
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1. A method of protecting a subject from an impact comprising a) providing an impact protection system comprising an unfoamed composite material, the composite material being elastic and exhibiting a resistive load under deformation which increases with a rate of deformation, the composite material
1. A method of protecting a subject from an impact comprising a) providing an impact protection system comprising an unfoamed composite material, the composite material being elastic and exhibiting a resistive load under deformation which increases with a rate of deformation, the composite material comprising (i) a solid matrix comprising a first polymer-based elastic material and (ii) a second polymer-based elastic material different from (i) which exhibits dilatancy in the absence of the first polymer-based elastic material, wherein the second polymer-based elastic material is entrapped in the solid matrix in an intimate admixture; andb) placing the impact protection system on the subject to protect the subject from the impact, wherein the intimate admixture is attainable by mixing together the first polymer-based elastic material and the second polymer-based elastic material in the semi-molten or molten state; and wherein the composite material is associated with a textile layer or is a shaped article in the form of (a) a fiber or (b) a textile or web comprising filaments or fibers. 2. The method of claim 1, wherein the composite material is flexible, conformable, and elastic. 3. The method of claim 1, wherein the composite material is attainable by blending (i) and (ii) together. 4. The method of claim 1, wherein the first polymer-based material comprises ethylene vinyl acetate (EVA) or an olefin polymer. 5. The method of claim 4, wherein the olefin polymer comprises polypropylene or an ethylene polymer. 6. The method of claim 5, wherein the ethylene polymer comprises high pressure polyethylene, low density polyethylene (LDPE), linear low density polyethylene (LLDPE), or high density polyethylene (HDPE). 7. The method of claim 1, wherein the first polymer-based elastic material further comprises an elastomer. 8. The method of claim 7, wherein the elastomer is a natural elastomer. 9. The method of claim 8, wherein the natural elastomer comprises latex rubber. 10. The method of claim 7, wherein the elastomer is a synthetic elastomer. 11. The method of claim 10, wherein the synthetic elastomer comprises a silicone rubber, a polyurethane, a thermoplastic elastomer, or an ethylene propylene (EP). 12. The method of claim 11, wherein the EP comprises ethylene propylene diene monomer (EPDM). 13. The method of claim 11, wherein the thermoplastic elastomer comprises a polyester. 14. The method of claim 1, wherein the second polymer-based elastic material comprises a silicone polymer exhibiting dilatant properties. 15. The method of claim 14, wherein the silicone polymer comprises a borated siloxane polymer. 16. The method of claim 15, wherein the borated siloxane polymer comprises a filled polyborodimethylsiloxane. 17. The method of claim 1, wherein the composite material is comminuted. 18. The method of claim 1, wherein the weight ratio of the second polymer-based elastic material to the first polymer-based material is 4 to 0.25. 19. The method of claim 1, wherein the shaped article is in the form of a fiber. 20. The method of claim 1, wherein the shaped article is a textile or web comprising filaments or fibers. 21. The method of claim 1, wherein the composite material is associated with a textile layer. 22. The method of claim 21, wherein the textile layer comprises a textile having elastic fibers. 23. The method of claim 1, wherein the weight ratio of the second polymer-based elastic material to the first polymer-based elastic material is 4 to 1. 24. A method of protecting a subject from an impact comprising a) providing an impact protection system comprising an unfoamed composite material, the composite material being elastic and exhibiting a resistive load under deformation which increases with a rate of deformation, the composite material comprising (i) a solid matrix comprising a first polymer-based elastic material and (ii) a second polymer-based elastic material different from (i) which exhibits dilatancy in the absence of the first polymer-based elastic material, wherein the second polymer-based elastic material is entrapped in the solid matrix in an intimate admixture; andb) placing the impact protection system on the subject to protect the subject from the impact, wherein the intimate admixture is attainable by mixing together the first polymer-based elastic material and the second polymer-based elastic material in the semi-molten or molten state; and the first polymer-based elastic material comprises high pressure polyethylene, low density polyethylene (LDPE), linear low density polyethylene (LLDPE), or high density polyethylene (HDPE). 25. The method of claim 24, wherein the second polymer-based elastic material comprises a silicone polymer exhibiting dilatant properties. 26. The method of claim 25, wherein the silicone polymer comprises a borated siloxane polymer. 27. The method of claim 26, wherein the borated siloxane polymer comprises a filled polyborodimethylsiloxane. 28. A method of protecting a subject from an impact comprising a) providing an impact protection system comprising an unfoamed composite material, the composite material being elastic and exhibiting a resistive load under deformation which increases with a rate of deformation, the composite material comprising (i) a solid matrix comprising a first polymer-based elastic material and (ii) a second polymer-based elastic material different from (i) which exhibits dilatancy in the absence of the first polymer-based elastic material, wherein the second polymer-based elastic material is entrapped in the solid matrix in an intimate admixture; andb) placing the impact protection system on the subject to protect the subject from the impact, wherein the intimate admixture is attainable by mixing together the first polymer-based elastic material and the second polymer-based elastic material in the semi-molten or molten state; and the first polymer-based elastic material further comprises a natural elastomer. 29. The method of claim 28, wherein the natural elastomer comprises latex rubber. 30. The method of claim 28, wherein the second polymer-based elastic material comprises a silicone polymer exhibiting dilatant properties. 31. The method of claim 30, wherein the silicone polymer comprises a borated siloxane polymer. 32. The method of claim 31, wherein the borated siloxane polymer comprises a filled polyborodimethylsiloxane. 33. A method of protecting a subject from an impact comprising a) providing an impact protection system comprising an unfoamed composite material, the composite material being elastic and exhibiting a resistive load under deformation which increases with a rate of deformation, the composite material comprising (i) a solid matrix comprising a first polymer-based elastic material and (ii) a second polymer-based elastic material different from (i) which exhibits dilatancy in the absence of the first polymer-based elastic material, wherein the second polymer-based elastic material is entrapped in the solid matrix in an intimate admixture; andb) placing the impact protection system on the subject to protect the subject from the impact, wherein the intimate admixture is attainable by mixing together the first polymer-based elastic material and the second polymer-based elastic material in the semi-molten or molten state; and the first polymer-based elastic material further comprises a synthetic elastomer comprising a polyester or ethylene propylene diene monomer (EPDM). 34. The method of claim 33, wherein the synthetic elastomer comprises a polyester. 35. The method of claim 33, wherein the synthetic elastomer comprises EPDM. 36. The method of claim 33, wherein the second polymer-based elastic material comprises a silicone polymer exhibiting dilatant properties. 37. The method of claim 36, wherein the silicone polymer comprises a borated siloxane polymer. 38. The method of claim 37, wherein the borated siloxane polymer comprises a filled polyborodimethylsiloxane.
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