Elastomer seal

Details Elastomer seal Elastomer seal

1994-06-30

1995-10-17

Seccuro, Jr., Carman J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525199, 525194, 525193, 524520, C08L 2716, C08L 2718, C08L 2720, C08L 2704, C08L 2722

Patent

active

054592020

ABSTRACT:
Seals capable of containing corrosive liquid and/or vapor of, e.g., HCFCs, are made of cured blends of (a) CTFE/VF.sub.2 elastomer, (b) chlorine-free fluoroelastomer, and (c) 1 to 20 wt % of hydrocarbon polymer, based on the combined weight of (a) and (b). The blends are homogeneous and coherent wherein the hydrocarbon polymer is not visible at 165.times. magnification as a separate phase within the matrix of the blend of (a) and (b) and the blend is free of internal cracks and voids.

REFERENCES:
patent: 3519703 (1970-07-01), Merkl et al.
patent: 3723577 (1973-03-01), Stivers
patent: 3879044 (1975-04-01), Estes
patent: 4529784 (1985-07-01), Finlay
patent: 4612351 (1986-09-01), Caporiccio
patent: 4948830 (1990-08-01), Martin et al.
patent: 5051479 (1991-09-01), Logothetis et al.
3-M Company, KEL-F Elastomer 3700, Technical Information (Compounding, Valcanization, Fabrication); Date Unknown, pp. 1-6.

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