Scratch and mar resistant propylene polymer composition
First Claim
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1. A process for preparing an injection molding automotive article from a coupled propylene polymer composition comprising the steps of:
- i preparing a coupled propylene polymer composition comprising;
(a) a propylene polymer formed by a reaction of from about 0.01 to 1.0 weight percent of a poly(sulfonyl azide) with a propylene polymer, wherein weight percent is based on the weight of the propylene polymer, and optionally one or more of (b) a polyolefin elastomer, (c) a thermoplastic polymer (d) a filler or (e) a slip agent, and ii injection molding an automotive article.
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Abstract
Disclosed are injection molded automotive articles comprising a coupled propylene polymer composition and optionally a thermoplastic elastomer, a thermoplastic polymer and a filler.
63 Citations
16 Claims
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1. A process for preparing an injection molding automotive article from a coupled propylene polymer composition comprising the steps of:
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i preparing a coupled propylene polymer composition comprising;
(a) a propylene polymer formed by a reaction of from about 0.01 to 1.0 weight percent of a poly(sulfonyl azide) with a propylene polymer, wherein weight percent is based on the weight of the propylene polymer, and optionally one or more of (b) a polyolefin elastomer, (c) a thermoplastic polymer (d) a filler or (e) a slip agent, and ii injection molding an automotive article. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16)
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14. A process for preparing an injection molding automotive article from a coupled propylene polymer composition comprising the steps of:
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i preparing a coupled propylene polymer composition comprising;
(a) from about 30 to about 80 weight percent of a propylene polymer formed by a reaction of from about 0.1 to about 0.6 weight percent based on the weight of the propylene polymer of 4,4′
-diphenyl ether bis(sulfonyl azide) with a propylene polymer,(b) from about 5 to about 20 weight percent of a substantially linear ethylene polymer or linear ethylene polymer, (c) from about 5 to about 20 weight percent of linear low density polyethylene or high density polyethylene (d) from about 10 to about 30 weight percent of calcined talc, uncalcined talc or mixture thereof and (e) from 0 to about 1 weight percent of erucamide, wherein weight percents for (b), (c), (d) and (e) are based on the weight of the coupled propylene polymer composition and ii injection molding an automotive article.
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Specification