| 摘要 |
Described are methods of making a composite cover material for use in a thermoplastic core paint roller, the composite cover material formed by coextruding a smoothly flowing layer comprising a coextrudite comprising polypropylene-based elastomer and a coextrudite comprising polypropylene between a pile material and a roller. Each of coextrudites may comprise calcium carbonate having between 5% and 50% calcium carbonate by weight.
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