Claims
- 1. A method of influencing the orientation of the polymer molecules in a thermotropic melt comprising forming a molten mixture of a polymer capable of forming a thermotropic melt which exhibits anisotropic (liquid crystalline) properties and 0.05% to 5.0% by weight of the mixture of a finely divided magnetically susceptible filler and passing the mixture through a magnetic field prior to or during the formation of a shaped article from the melt.
- 2. A method according to claim 1 wherein the field strength is at least 0.005 Tesla.
- 3. A method according to either of claims 1 or 2 in which the field is applied to a shaped article formed from the mixture over the period during which the article commences solidification from the melt.
- 4. A method according to claim 1 or 2 in which the magnetically susceptible filler is a metal ferrite.
- 5. A composition for uses in the method of any one of claims 1 or 2 comprising a thermoplastic polymer capable of forming a thermotropic melt which exhibits anisotropic (liquid crystalline) properties and from 0.05% to 5.0% by weight of a magnetically susceptible filler.
- 6. A composition according to claim 5 in which the magnetically susceptible filler is selected from barium, calcium, strontium, lead, zinc and magnesium ferrites.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8329957 |
Nov 1983 |
GBX |
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Parent Case Info
This is a continuation of application Ser. No. 665,346 filed Oct. 26, 1984, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0087276 |
Aug 1983 |
EPX |
154707 |
Dec 1980 |
JPX |
857165 |
Aug 1981 |
SUX |
Non-Patent Literature Citations (1)
Entry |
Hackh; Hackh's Chemical Dictionary; McGraw-Hill Book Co. Inc.; 3rd Ed., 1944; p. 847. |
Continuations (1)
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Number |
Date |
Country |
Parent |
665346 |
Oct 1984 |
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