Laminar structure and a hose formed of the laminar structure exh

Details Laminar structure and a hose formed of the laminar structure exh Laminar structure and a hose formed of the laminar structure exh

1998-01-22

2000-08-22

Robinson, Ellis

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428413, 428421, 428422, 138137, 138141, B32B 710, B32B 108, B32B 2706, B32B 2738, F16L 1104

Patent

active

061069140

ABSTRACT:
A laminar structure consisting of at least a first layer (2) formed of a fluoro rubber or a fluoro resin, and a second layer (4) laminated in contact with the first layer and formed of an epichlorohydrin rubber, wherein the improvement comprises; the second layer (4) being formed of a rubber composition which contains 100 parts by weight of an epichlorohydrin rubber material as a base rubber component, 0.1-5 parts by weight of a vulcanizing agent formed of a 2,3-dimercaptoquinoxaline derivative represented by the formula (1), 0.1-5 parts by weight of a salt of 1,8-diazabicyclo(5,4,0)undecene-7 represented by the formula (2), and 1-20 parts by weight of at least one hydrotalcite compound represented by the formula (3), wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent a same one or respective different ones of a hydrogen atom and an alkyl group having 1-4 carbon atoms, X.sup.- represents an acid radical of carboxylic acid or phenolic resin, M.sub.1.sup.2+ represents at least one divalent metal selected from the group consisting of Mg, Ca, Sr and Ba, M.sub.2.sup.2+ represents at least one divalent metal selected from the group consisting of Zn, Cd, Pb and Sn, M.sup.3+ represents a trivalent metal, A.sup.n- represents an n-valent anion, a and b respectively represent a real number from 0 to 10, x represents a+b and a real number from 1 to 4, y represents an integer from 1 to 5, and w represents a real number. ##STR1##

REFERENCES:
patent: 5519079 (1996-05-01), Tomoshige
patent: 5798158 (1998-08-01), Koike et al.
patent: 5958532 (1999-09-01), Krause et al.

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