Di-(alken-1-yl)-substituted borinic acids and borinates as oxida

Details Di-(alken-1-yl)-substituted borinic acids and borinates as oxida Di-(alken-1-yl)-substituted borinic acids and borinates as oxida

1989-06-02

1998-01-13

Jordan, Charles T.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C03F 3006, C03F13006, C03F23006

Patent

active

057081050

ABSTRACT:
Resins and carbon-carbon composites are formed from di(alken-1-yl) borinic acids and borinates, either as monomers or as nonpolymerizing additives in a monomer mixture, with the effect of sharply increasing the oxidative stability of the cured product. The compounds have the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are H, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.5 -C.sub.7 cycloalkenyl, aryl, (C.sub.1 -C.sub.6 alkyl)-substituted aryl, (C.sub.2 -C.sub.6 alkenyl)-substituted aryl, or (C.sub.2 -C.sub.6 alkynyl)-substituted aryl, at least one of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 being other than H.

REFERENCES:
STN Registry File; Chemical Abstracts Registry No.: 104503-69-7 and 95011-59-9, Structures attached.
Abstract RN 93223-08-6 (Registry Database Record and Chemical Abstracts Citation).
Fitzer, E., "The Future of Carbon-Carbon Composites," Carbon, 25(2): 163-190 (1987).
Brown, H.C. et al., "Reaction of Representative Alkynes With Monochloroborane Diethyl Etherate. A Simple Convenient Synthesis of Dialkenylchloroboranes via Hydroboration," J. Org. Chem., 38(8): 1617-8 (1973).
Goto, K.S. et al., "A Review of Oxidation Kinetics of Carbon Fiber/Carbon Matrix Composites at High Temperature," Trans. Iron Steel Inst. Japan, 26(7): 597-603 (1986).
Luthra, K.L. et al., "Oxidation of Carbon/Carbon Composites--A Theoretical Analysis," Carbon, 26(2): 217-224 (1988).
McKee, D.W., "The Oxidation of Dispersed Refractory Metal Compounds and Their Behavior as Carbon Oxidation Catalysts," Carbon, 24(3): 331-6 (1986).
McKee, D.W., "Oxidation Behavior of Matrix-Inhibited Carbon/Carbon Composites," Carbon, 26(5): 659-665 (1988).
The STN International document is a printout of a computer search for Chemical Abstracts citations of borinic acids.
105:138657n Silicon carbide base sintered material containing boron as a sintering assistant.

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