Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1990-12-27
1993-01-19
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528392, C08G 6702
Patent
active
051807971
ABSTRACT:
A polyketone having a molecular weight greater than 1,000 and containing 0.01 to 50 mole percent carbonyl groups is contacted directly with an organic peroxyacid to produce a polyester. The polyketone is in a single homogenous phase during the oxidation process and may be in either solid or liquid form.
In a preferred embodiment, a molten polyketone is contacted with an organic peroxyacid in a reactive extrusion process to produce polyester pellets.
REFERENCES:
patent: 4192942 (1990-03-01), Mainord
patent: 4929711 (1990-05-01), Chang et al.
patent: 4957997 (1990-09-01), Chang et al.
"Free-Radical Ring Opening Polymerization" by William J. Bailey et al., in J. Macromol. Sci.-Chem., A21(13 & 14), pp. 1611-1639 (1984) describes free-radical ring opening polymerizations of heterocyclic compounds.
"Synthesis of Biodegradable Polyethylene" by William J. Bailey and Benjamin Gapud, in Polymer Stabilization and Degradation, based on a symposium sponsored by the Division of Polymer Chemistry at the 187th Meeting of the American Chemical Society, St. Louis, Mo., Apr. 9-12, 1984, Peter P. Klemchuk, Ed., pp. 423-431 (1985) describes forming biodegradable copolymers of ethylene and 2-methylene-1, 3-dioxepane by free radical polymerization.
"Synthesis of Functionally-Terminated Oligomers by Free Radical Ring-Opening Polymerization" by William J. Bailey in J. Macromol. Sci.-Chem., A21(8 & 9), pp. 979-995 (1984).
"The Use of Free Radical Ring-Opening Polymerization for the Synthesis of Reactive Oligomers" by William J. Bailey, et al. in Am. Chem. Soc. Div. Poly. Chem. Preprints, 25 (1) 142 (1984).
"Baeyer-Villiger Reaction in the Solid State" by Fumio Toda, Minoru Yagi, and Koji Kiyoshige in J. Chem. Soc., Chem. Commun., 1988 pp. 958-959.
Austin Richard G.
Patton Tad L.
Anderson Harold D.
Bell Catherine L.
Exxon Chemical Patents Inc.
Kurtzman Myron B.
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