Invention Grant
- Patent Title: Graphics transfers for use in rotational molding
- Patent Title (中): 图形传输用于旋转成型
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Application No.: US10348884Application Date: 2003-01-23
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Publication No.: US07641842B2Publication Date: 2010-01-05
- Inventor: Michael J. Stevenson , Robert A. Reeves
- Applicant: Michael J. Stevenson , Robert A. Reeves
- Applicant Address: US AZ Sedona
- Assignee: Michael J. Stevenson
- Current Assignee: Michael J. Stevenson
- Current Assignee Address: US AZ Sedona
- Agent Robert E. Strauss
- Main IPC: B29C39/12
- IPC: B29C39/12 ; B28B1/20

Abstract:
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.
Public/Granted literature
- US20030132548A1 Graphics transfers for use in rotational molding Public/Granted day:2003-07-17
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