Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1993-04-02
1993-12-07
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528126, 528151, 528152, 528153, 528155, 528219, 528220, C08G 802
Patent
active
052684440
ABSTRACT:
Phenylethynyl-terminated poly(arylene ethers) are prepared in a wide range of molecular weights by adjusting monomer ratio and adding an appropriate amount of 4-fluoro-4'-phenylethynylbenzophenone during polymer synthesis. The resulting phenylethynyl-terminated poly(arylene ethers) react and crosslink upon curing for one hour at 350.degree. C. to provide materials with improved solvent resistance, higher modulus and better high temperature properties than the linear, uncrosslinked polymers.
REFERENCES:
patent: 4175175 (1979-11-01), Johnson et al.
patent: 4331798 (1982-05-01), Staniland et al.
patent: 4774314 (1988-09-01), Winslow et al.
patent: 4786694 (1988-11-01), Clendinning et al.
patent: 4931530 (1990-06-01), Fukawa et al.
patent: 5051495 (1991-09-01), Staniland et al.
patent: 5081214 (1992-01-01), Schneller
patent: 5138028 (1992-08-01), Paul et al.
patent: 5194561 (1993-03-01), Fischer et al.
P. M. Hergenrother et al., "Acetylene-Terminated Prepolymers", Encycl. Polym. Sci. Eng. vol. 1, 2nd edition, John Wiley & Sons, Inc. New York, N.Y. (1985), pp. 61-86.
G. Lucotte, et al., "Ethynyl-Terminated Polyethers from New End-Capping Agents. II, End-Chain Funtionalization through Nitro Displacement", J. Polym. Sci., Part A: Polym. Chem., vol. 29, (1991), pp. 897-903.
B. Delfort et al., "Ethynyl-Terminated Polyethers from New End-Capping Agents: Synthesis and Characterization", J. Polym. Sci., Part A: Polym. Chem., vol. 28, (1990), pp. 2451-2464.
Bryant Robert G.
Hergenrother Paul M.
Jensen Brian J.
Acquah S. A.
Helfrich George F.
Kight III John
The United States of America as represented by the Administrator
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