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US Patent 11697719 Method for enhanced bonding of thermoplastic composites

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Patent
Patent
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Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
116977190
Date of Patent
July 11, 2023
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Patent Application Number
168067670
Date Filed
March 2, 2020
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Patent Citations
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US Patent 8702892 Bonding of air-plasma treated thermoplastics
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US Patent 8197938 Adhesion promoter intended for application to a thermoplastic elastomer polymer substrate and corresponding processes for surface treatment and adhesive assembly
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US Patent 8632651 Plasma surface treatment of composites for bonding
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Patent Primary Examiner
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Michael P Wieczorek
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CPC Code
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B29C 65/4805
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B29C 65/4855
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B29C 65/52
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B29C 66/71
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B05D 3/148
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C08J 2371/00
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C08J 5/124
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C08J 7/043
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...

The present disclosure provides a method of enhancing the shelf-life of an activated surface of a thermoplastic material, including: coating at least a portion of a surface of the thermoplastic material with at least one adhesion promoter to provide a coated surface; and treating the coated surface with plasma to provide the activated surface of the thermoplastic material; wherein the activated surface has a contact angle in the range of from about 0 to about 40°; and wherein the presence of the at least one adhesion promoter is effective to maintain the contact angle in the range of from about 0 to about 40° for a time of about 10 days or greater.

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