Soft polymer compositions having improved high temperature properties
First Claim
1. A composition comprising a blend and optionally a first component, a second component, or both wherein the composition has a Shore D hardness of less than 50;
- the blend comprises 20 to 50 weight % of at least one crystalline polyolefin and 50 to 80 weight % of at least one ethylene/alkyl (meth)acrylate copolymer, the ethylene/alkyl (meth)acrylate copolymer has a higher melt viscosity than the polyolefin;
the first component is capable of improving the scratch-and-mar properties of the composition; and
the second component includes plasticizer, stabilizer, antioxidant, UV absorber, antistatic agent, dye, pigment or other coloring agent, fluorescent whitening agent, inorganic filler, delustrant, terminating agent, fire-retardant, lubricant, reinforcing agent, foaming or blowing agent, processing aid, slip additive, antiblock agent, release agent, tackifying resin, or combinations of two or more thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed are soft polymer compositions comprising an ethylene/alkyl (meth)acrylate copolymer and a crystalline polyolefin, such as polypropylene homopolymers or polypropylene copolymers, wherein the ethylene/alkyl (meth)acrylate copolymer has a higher melt viscosity than the polyolefin. Also disclosed are such compositions modified by materials that improve the scratch-and-mar properties of the blends, the preparation and use of these compositions in such processes as extrusion and injection molding, and articles made from these compositions.
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Citations
20 Claims
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1. A composition comprising a blend and optionally a first component, a second component, or both wherein
the composition has a Shore D hardness of less than 50; -
the blend comprises 20 to 50 weight % of at least one crystalline polyolefin and 50 to 80 weight % of at least one ethylene/alkyl (meth)acrylate copolymer, the ethylene/alkyl (meth)acrylate copolymer has a higher melt viscosity than the polyolefin;
the first component is capable of improving the scratch-and-mar properties of the composition; and
the second component includes plasticizer, stabilizer, antioxidant, UV absorber, antistatic agent, dye, pigment or other coloring agent, fluorescent whitening agent, inorganic filler, delustrant, terminating agent, fire-retardant, lubricant, reinforcing agent, foaming or blowing agent, processing aid, slip additive, antiblock agent, release agent, tackifying resin, or combinations of two or more thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification