Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1986-02-28
1987-03-31
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
524600, 524606, 524607, 525417, 525419, 525426, 528322, 528341, 528342, 528345, C08G 8300
Patent
active
046544143
ABSTRACT:
Thermosettable prepolymers or polymers are prepared by reacting (A) the reaction product of (1) a heterocyclic material having one or more rings, at least one nitrogen atom and at least two substituent groups which have at least one reactive hydrogen atom attached to a carbon atom which is attached to a heterocyclic ring such as 2,3,5,6-tetramethylpyrazine; (2) a cycloaliphatic or aromatic carboxylic acid mono- or dianhydride such as pyromellitic dianhydride; and (3) a material containing a polymerizable ethylenically unsaturated group and at least one group selected from (a) a heterocyclic material having one or more rings; at least one nitrogen atom and at least one substituent group which has at least one reactive hydrogen atom attached to a carbon atom which is attached to a heterocyclic ring such as 2-methyl-5-vinyl pyridine or (b) a cycloaliphatic or aromatic carboxylic acid mono- or dianhydride group such as cis-5-norbornene-endo-2,3-dicarboxylic anhydride; with (B) an aqueous or alcoholic solution of a hydroxide, carbonate or bicarbonate of a metal of Groups I-A or II-A, such as sodium hydroxide.
These polymers or prepolymers when subjected to a thermoset condition by heat and pressure or by homopolymerization in the presence of or copolymerization with an N,N'-bis-imide exhibit good char forming properties when subjected to a temperature of 700.degree. C.
REFERENCES:
patent: 3424718 (1969-01-01), Angelo
patent: 3528950 (1970-09-01), Lubowitz
patent: 3562223 (1971-02-01), Bargain et al.
patent: 3808209 (1974-04-01), Donald
patent: 4362860 (1982-12-01), Ratto et al.
patent: 4471107 (1984-09-01), Peake
New Commercial Polymers 1969-1975, by Hans-Georg Elias, Gordon and Breach Science Publishers, New York, 1977, pp. 139-140.
"Nuclear Magnetic Resonance Study of Norbornene End-Capped Polyimides, 1. Polymerization of N-Phenylnadimide", by A. C. Wong and W. M. Ritchey, Macromolecules, 1981, vol. 14, pp. 825-831.
"Nuclear Magnetic Resonance Study of Norbornene End-Capped Polyimides, 2. Solution and Solid-State Carbon-13 Study of 2 NE/MDA and PMR Polymerization", by A. C. Wong, A. N. Garroway and W. M. Ritchey, Macromolecules, 1981, vol. 14, pp. 832-836.
Manly et al in "A Study of the Chemistry of Pyrophthalone and Related Compounds", in J. Org. Chem., 1958, vol. 23, pp. 373-380.
J. Ploquin et al in "Heterocyclic .beta.-Diketoenamines:1. 1,3-Indanediones Substituted at Position 2 with a Nitrogen Heterocycle", J. Heterocyclic Chem., 1980, vol. 17, pp. 961-973.
J. Ploquin et al in "Pyrophthalones II. Synthesis and Pharmacodynamic Activity of .gamma.-Pyrophthalones, Effect of Substituents on the Pyridine Ring", Eur. J. Med. Chem., 1974, vol. 9, pp. 519-525.
J. Ploquin et al in "Reactivity of Methyl Groups During Condensation of 2,4-Lutidine and 2,4,6-Collidine with Phthalic Anhydride", C. R. Acad. Sc. Paris, Dec. 23, 1974, vol. 279, pp. 1149-1152.
Anderson Harold D.
Carter J. G.
The Dow Chemical Company
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