Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1983-02-02
1985-04-02
Anderson, Philip
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
264 54, 264237, 264257, 26432812, 264DIG83, 521182, 528176, 528195, C08G 6318, B29C 2500, B29D 2700
Patent
active
045088918
ABSTRACT:
Shaped articles are provided containing a polymer which is capable of exhibiting anisotropy in the melt characterized in that the ratio of the stiffness in any two directions at right angles in the shaped article differs by at least 10%, and preferably by at least 50%, from the ratio in the same two directions for a control sample made from a melt consisting entirely of the polymer in anisotropic form.
These may be obtained by a variety of methods including disturbing the normal flow pattern of flow into a mould by including obstacles to flow in the mould, disturbing the pattern of flow by foaming in the mould, by including fillers or by using polymers capable of existing as a bi-phase anisotropic and isotropic melt and forming shaped articles in which this two-phase disposition is retained.
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Bailey Derrick S.
Cogswell Frederic N.
Griffin Brian P.
Anderson Philip
Imperial Chemical Industries PLC
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