Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1991-07-01
1993-09-14
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
128126, 128128, 128174, 128388, C08G 7500
Patent
active
052450007
ABSTRACT:
Poly(arylene sulfide) polymers containing sulfone, ether and biphenyl groups are prepared by a two step process. In the first step, a diphenol is reacted with either a dihaloaromatic sulfone monomer or a bis(haloarylsulfonyl) biphenyl monomer, or both, in the presence of an alkali metal base and a polar organic compound. In the second step, the reaction mixture above is reacted with a sulfur source, and any monomer which was not employed in the first step, if any. The polymers prepared according to the invention process exhibit increased glass transition temperatures over those of known poly(arylene sulfide) polymers. The structure of repeating units of the polymer can be controlled by varying the sequence of addition of the monomers.
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"Poly(aryl Ethers) by Nucleophilic Chromatic Substitution, I. Synthesis and Properties", Johnson et al., Journal of Polymer Science: Part A-1, vol. 5, pp. 2375-2398 (1967).
Bobsein Rex L.
Efner Howard F.
Geibel Jon F.
Dollar Beverly M.
Kight III John
Phillips Petroleum Company
Truong Duc
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