Sulfonation of polybenzoxazole and polybenzothiazole for improve

Details Sulfonation of polybenzoxazole and polybenzothiazole for improve Sulfonation of polybenzoxazole and polybenzothiazole for improve

1991-02-19

1993-06-01

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528179, 528183, 528337, 528342, 528487, C08G 7500, C08G 6300, C08F 600

Patent

active

052161145

ABSTRACT:
A method for sulfonating items comprising polybenzazole polymers is described. These sulfonated polybenzazole items are incorporated into composites containing a matrix resin such as an epoxy resin. The interfacial shear strength of these sulfonated polybenzazole fiber-containing composites is significantly improved over the interfacial shear strength of similar composites containing unsulfonated polybenzazole fibers.

REFERENCES:
patent: 2578063 (1951-12-01), Hackmann
patent: 3556895 (1971-01-01), Mallone et al.
patent: 3617338 (1971-11-01), Caloia et al.
patent: 4051108 (1977-09-01), Helminiak et al.
patent: 4101514 (1978-07-01), Thom
patent: 4263245 (1981-04-01), Tan
patent: 4487735 (1984-12-01), Chenevey et al.
patent: 4533693 (1985-08-01), Wolfe et al.
patent: 4591437 (1986-04-01), Mammone
patent: 4606875 (1986-08-01), Chenevey et al.
patent: 4628067 (1986-12-01), Chen, Sr. et al.
patent: 4634530 (1987-01-01), Kuder et al.
patent: 4663142 (1987-05-01), Cameron et al.
patent: 4673560 (1987-06-01), Masse et al.
patent: 4772678 (1988-09-01), Sybert et al.
patent: 4814399 (1989-03-01), Sansone et al.
patent: 4826502 (1989-05-01), Sansone et al.
patent: 4847350 (1989-07-01), Harris
patent: 4861250 (1989-08-01), Walles et al.
patent: 4868008 (1989-09-01), Marikar et al.
patent: 4898924 (1990-02-01), Chenevey
patent: 4902493 (1990-02-01), Walles et al.
patent: 4912176 (1990-03-01), Alvarez et al.
patent: 4915912 (1990-04-01), Walles et al.
patent: 5086120 (1992-02-01), Tan et al.
Lawrence T. Drzal, et al., "Adhesion of Graphite Fibers to Epoxy Matrices: I. The Role of Fiber Surface Treatment," Journal of Adhesion, 1982, vol. 16, pp. 1-30.

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