发明名称 Graphics transfers for use in rotational molding
摘要 This invention is an indicia transfer and method for its use to impart indicia to polyolefin objects during rotational molding. The transfer is a laminate of at least two, and preferably, three coats on a carrier sheet, which is preferably a flexible, transparent polymer sheet. The coats, as successive layers on the carrier sheet are: an optional backing coat of a backing-coat pressure sensitive adhesive, an indicia coat of a colorants in a graphic or alphanumerical array, and a top coat of a pressure sensitive adhesive. The pressure sensitive adhesive used for the backing coat has a transition melting temperature less than the surface temperature of the mold to which the transfer is to be applied while the top-coat pressure sensitive adhesive has a temperature sensitive adhesive which becomes tacky at the demolding temperature to enable transfer of the coats to the interior surface of a rotational mold. All the coats have melting temperatures which are less than the molding temperature to enable transfer and fusing of the transfers into the surface of the molded part.
申请公布号 US7641842(B2) 申请公布日期 2010.01.05
申请号 US20030348884 申请日期 2003.01.23
申请人 STEVENSON MICHAEL J;REEVES ROBERT A 发明人 STEVENSON MICHAEL J.;REEVES ROBERT A.
分类号 B29C39/12;B44C1/17;B28B1/20;B29C37/00;B29C41/04;B29C41/06;B29C41/20;B32B27/00 主分类号 B29C39/12
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