Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1988-07-19
1989-12-26
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528126, 528219, 525390, 525394, 525416, 525534, C08G 802
Patent
active
048899097
ABSTRACT:
High-temperature-resistant, thermoplastically processable polyarylene ethers with repeating structural units of the general formula ##STR1## wherein A represents 4,4'- or 4,4"-benzophenone units of the formula ##STR2## with z being 0 or 1, B represents 9,9-bis(4'-phenyl)fluorene units of the formula ##STR3## and C represents 2,2-bis(4-phenyl)propane units of the formula ##STR4## which are linked to one another in etherlike fashion through oxygen atoms, the composition of the polyarylene ethers being determined by m and n, the molar ratio of which ranges from 30:70 to 90:10, and wherein the sequence of the segments containing B or C may be random.
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Hergenrother, Polymer J. vol. 19, (1987), 73-83, (only 78,79 enclosed).
Vinogradova et al., Polymer Science USSR vol. 14, (1972), 2962-2970).
Besecke Sigmund
Knebel Joachim
Schroeder Guenter
Ude Werner
Acquah S. A.
Kight John
Rohm GmbH
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