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US 4,902,369 AGranted
Method for the processing of liquid crystal polymers
AssigneeUniversity of Delaware
InventorsNadka V. Avramova, Stoyko C. Fakirov
Life of this patent
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Abstract
Described and claimed are a process for preserving the orientation of a liquid crystal polymer/during lamination which comprises carrying out the lamination bonding at a high temperature below the melting point of the polymer and under pressure of up to about 5 MPa.
Claims4
The process of laminating liquid crystal polymer films having a high degree of molecular orientation as formed while maintaining the molecular orientation which comprises:
- cooling the films as formed to a temperature of around 0.degree. C., and thereby freezing the molecular orientation, and
- contacting a multiplicity of said films at a temperature of at least 100.degree. C. but below the melting point of the polymer and at a pressure of about 0.05-5 MPa for about 3-10 hours.
Dependencies are inferred from the claim text.