Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1992-11-12
1993-09-28
Sellers, Robert E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525481, 525485, 525486, 525488, 525489, 525510, C08L 6302, C08L 6304
Patent
active
052487407
ABSTRACT:
A rodlike mesogenic moiety-containing polythiirane resin is blended with an epoxy resin and when cured with a curing agent is useable in molding applications.
REFERENCES:
patent: 3378522 (1968-04-01), Martin
patent: 4748083 (1988-05-01), Widmer et al.
patent: 4962163 (1990-10-01), Hefner, Jr. et al.
patent: 5024785 (1991-06-01), Hefner, Jr. et al.
patent: 5189117 (1993-02-01), Hefner, Jr.
Bell and Ku, "Epoxy/Episulfide Resins," Crosslinked Epoxies, Walter de Gruyter and Co., New York, NY, 1987, pp. 3-26.
Vecera and Spacek, "Preparation and Reactivity of Thiiranes," Crosslinked Epoxies, Walter de Gruyter and Co., New York, NY, 1987, pp. 73-80.
"Ferroelectric Liquid Crystals and Dopants Containing the Chiral Thiirane Unit, A Comparison With Analogous Oxiranes" by G. Scherowsky and J. Gay, Liquid Crystals, vol. 5, pp. 1253-1258, (1989).
Copending applications Ser. No. 556,607 filed Jul. 13, 1990 by Jimmy D. Earls Paul M. Puckett and Robert E. Hefner, Jr. titled "Curable Compositions Containing Mesogenic Advanced Resin Compositions and Curing Agent Therefore and Cured Products".
Copending application Ser. No. 553,930 filed Jul. 13, 1990 by Jimmy D. Earls, Paul M. Puckett, and Robert E. Hefner, Jr. titled "Advanced Resin Compositions Containing Mesogenic Moieties".
Copending application Ser. No. 297,894 filed Jan. 17, 1989 by Paul M. Puckett, Jimmy D. Earls and Michael B. Cavitt, titled "Dihydroxybenzophenone Oximes, Their Preparation and Rearrangement to the Anilide".
Copending application Ser. No. 380,936 filed Jul. 17, 1989 by Robert E. Hefner, Jr. and Jimmy D. Earls titled "Mesogenic Cyanate Functional Maleimides and Thermosets Thereof".
Copending application Ser. No. 380,938 filed Jul. 17, 1989 (same date as above identified application) by Robert E. Hefner, Jr., Jimmy D. Earls and Paul M. Puckett, titled "Mesogenic Polycyanates and Thermosets Thereof".
Copending application Ser. No. 562,289 filed Aug. 3, 1990 by Robert E. Hefner, Jr. and Jimmy D. Earls, titled "Adducts of Epoxy Resins and Active Hydrogen Containing Compounds Containing Mesogenic Moieties".
Copending application Ser. No. 562,787 filed Aug. 3, 1990 by Robert E. Hefner, Jr. and Jimmy D. Earls, titled "Polymer Modified Adducts of Epoxy Resins and Active Hydrogen Containing Compounds Containing Mesogenic Moieties".
Copending Application Ser. No. 562,182 filed Aug. 3, 1990 by Jimmy D. Earls, Robert E. Hefner, Jr. and Paul M. Puckett titled "Curable Mixtures of Mesogenic Epoxy Resins and Mesogenicpolyamines and Cured Compositions".
Earls Jimmy D.
Hefner, Jr. Robert E.
Sellers Robert E.
The Dow Chemical Company
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