The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2012
Filed:
Jun. 30, 2010
William W. Rowley, Chagrin Falls, OH (US);
Richard T. Seman, Newbury, OH (US);
William W. Rowley, Chagrin Falls, OH (US);
Richard T. Seman, Newbury, OH (US);
Mercury Plastics, Inc., Middlefield, OH (US);
Abstract
A process is described for injection overmolding a second polymer onto a crosslinked profile of a first polymer comprising the steps of: heating at least a portion of the crosslinked profile (previously crosslinked to at least approximately 65%) to a temperature which raises the temperature of a skin of said portion of the crosslinked profile from a first temperature to a second higher temperature (e.g., 112-269° F.) for a duration sufficient to heat the crosslinked portion to the second temperature, the crosslinked profile having been crosslinked from a method selected from the group consisting of radiation and silane; inserting at least a portion of the heated portion at least partially into a mold which defines an overmolding profile; injection molding the second polymer over at least a portion of the heated portion of the crosslinked profile into the void of the mold; and crosslinking the second polymer. The affixation between the heated portion of the crosslinked profile and the second crosslinked polymer passing a hot burst pressure test applicable to an intended end use for said combination at 180° F. without any visible separation between the first and second profiles after the test.