Mesogen-containing aromatic anhydride compounds

Details Mesogen-containing aromatic anhydride compounds Mesogen-containing aromatic anhydride compounds

1994-02-15

1995-05-02

Krass, Frederick

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528 97, 528 98, 528 99, 528100, 528107, 528109, 528112, 528114, 528361, 528364, 528365, 525502, 525504, 525505, 525508, C08G 5940, C08G 5942, C08G 6500

Patent

active

054120578

ABSTRACT:
Anhydride compounds which contain at least one rodlike mesogenic moiety and at least two anhydride groups per molecule, wherein each of said aromatic anhydride groups is linked to the mesogen via an ester linkage are prepared. These anhydride compounds are useful in curing epoxy resins to provide the cured products with one or more improved properties.

REFERENCES:
patent: 3182073 (1965-05-01), Loncrini
patent: 3183248 (1965-05-01), Hirsch et al.
patent: 3225065 (1965-12-01), Hyde
patent: 5218062 (1993-06-01), Earls et al.
patent: 5227452 (1993-07-01), Earls et al.
patent: 5235006 (1993-08-01), Jones et al.
patent: 5266660 (1993-11-01), Hefner, Jr. et al.
patent: 5266661 (1993-11-01), Earls et al.
patent: 5270404 (1993-12-01), Earls et al.
patent: 5270405 (1993-12-01), Earls et al.
patent: 5270406 (1993-12-01), Earls et al.
"4-Esters of Trimellitic Anhydride" by I. Puskas and E. Fields in Ind Eng. Chem. Prod. Res. Develop, vol. 9, No. 3, pp. 403-407, 1970.

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