Patent classifications
C08G65/321
Organic fluorine compound, lubricant, and processing method of magnetic recording medium
According to one aspect of the present invention, an organic fluorine compound is represented by a general formula
(R-π-E-CH.sub.2-A-CH.sub.2-E′).sub.n-π′-G (1B) (where n is an integer of 2 to 5, A is a divalent perfluoropolyether group, π is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E and E′ are each independently an ether bond or an ester bond or a group that is represented by a chemical formula
—O—CH.sub.2CH(OH)CH.sub.2O—
π′ is a group in which n+1 hydrogen atoms are separated from benzene, G is an organic group containing a fullerene skeleton, the n number of groups each of which is represented by a general formula
R-π-E-CH.sub.2-A-CH.sub.2-E′-
may be the same or different, and at least one π among the n number of π is an arylene group).
Organic fluorine compound, lubricant, and processing method of magnetic recording medium
According to one aspect of the present invention, an organic fluorine compound is represented by a general formula
(R-π-E-CH.sub.2-A-CH.sub.2-E′).sub.n-π′-G (1B) (where n is an integer of 2 to 5, A is a divalent perfluoropolyether group, π is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E and E′ are each independently an ether bond or an ester bond or a group that is represented by a chemical formula
—O—CH.sub.2CH(OH)CH.sub.2O—
π′ is a group in which n+1 hydrogen atoms are separated from benzene, G is an organic group containing a fullerene skeleton, the n number of groups each of which is represented by a general formula
R-π-E-CH.sub.2-A-CH.sub.2-E′-
may be the same or different, and at least one π among the n number of π is an arylene group).
RESIN COMPOSITION, PREPREG, LAMINATE AND METAL FOIL-CLAD LAMINATE
An epoxy resin composition, and a prepreg, a laminate, and a metal foil-clad laminate manufactured using same. The epoxy resin composition comprises epoxy resin (A), phenolic curing agent (B), high molecular weight resin (C), and an optional inorganic filler (D), the high molecular weight resin (C) having the structure shown in formula (1), formula (2), formula (3), and formula (4), the weight-average molecular weight being between 100,000 and 200,000, and the content of the epoxy resin (A) containing a naphthalene ring skeleton and the phenolic curing agent (B) containing a naphthalene ring skeleton being 0%. The present epoxy resin composition, and the prepreg, the laminate, and the metal foil-clad laminate manufactured using same have good heat resistance, low modulus, and a low coefficient of thermal expansion. The formulas are:
##STR00001##
Organic fluorine compound, lubricant, and processing method of magnetic recording medium
According to one aspect of the present invention, an organic fluorine compound is represented by a general formula
(R-π-E-CH.sub.2).sub.2-A (1A)
(where A is a divalent perfluoropolyether group, π is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E is an ether bond or an ester bond or a group that is represented by a chemical formula
—O—CH.sub.2CH(OH)CH.sub.2O—
two groups each of which is represented by a general formula
R-π-E-CH.sub.2—
may be the same or different, and at least one n among two π is an arylene group).
Organic fluorine compound, lubricant, and processing method of magnetic recording medium
According to one aspect of the present invention, an organic fluorine compound is represented by a general formula
(R-π-E-CH.sub.2).sub.2-A (1A)
(where A is a divalent perfluoropolyether group, π is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E is an ether bond or an ester bond or a group that is represented by a chemical formula
—O—CH.sub.2CH(OH)CH.sub.2O—
two groups each of which is represented by a general formula
R-π-E-CH.sub.2—
may be the same or different, and at least one n among two π is an arylene group).
METHOD FOR PRODUCING FLUOROPOLYETHER-GROUP-CONTAINING COMPOUND
A method for producing a fluoropolyether group-containing compound, which includesreacting a fluoropolyether group-containing compound (A) represented by the following formula:
X.sup.11—(R.sup.11).sub.n11—R.sup.F1—X.sup.12 (1)
in the presence of a metal catalyst to form a fluoropolyether group-containing compound (B) containing two or more moieties derived from the fluoropolyether group-containing compound (A). Each of the above symbols is as defined in the description.
Fullerene derivative and lubricant
One embodiment of the present invention is a fullerene derivative represented by general formula (1) ##STR00001##
(wherein FLN is a fullerene backbone; each A is independently a monovalent group including a divalent perfluoropolyether group; each R is each independently a hydrogen atom, a hydrocarbon group, or an alkoxycarbonyl group including a divalent perfluoropolyether group; at least one of the 2m R is a hydrocarbon group or an alkoxycarbonyl group including a divalent perfluoropolyether group; m is an integer from 1 to 5; and n is an integer from 1 to 6).
ORGANIC FLUORINE COMPOUND, LUBRICANT, AND PROCESSING METHOD OF MAGNETIC RECORDING MEDIUM
According to one aspect of the present invention, an organic fluorine compound is represented by a general formula
(R--E-CH.sub.2).sub.2-A(1A)
(where A is a divalent perfluoropolyether group, is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E is an ether bond or an ester bond or a group that is represented by a chemical formula
OCH.sub.2CH(OH)CH.sub.2O
two groups each of which is represented by a general formula
R--E-CH.sub.2
may be the same or different, and at least one n among two is an arylene group).
ORGANIC FLUORINE COMPOUND, LUBRICANT, AND PROCESSING METHOD OF MAGNETIC RECORDING MEDIUM
According to one aspect of the present invention, an organic fluorine compound is represented by a general formula
(R--E-CH.sub.2-A-CH.sub.2-E).sub.n--G(1B) (where n is an integer of 2 to 5, A is a divalent perfluoropolyether group, is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E and E are each independently an ether bond or an ester bond or a group that is represented by a chemical formula
OCH.sub.2CH(OH)CH.sub.2O
is a group in which n+1 hydrogen atoms are separated from benzene, G is an organic group containing a fullerene skeleton, the n number of groups each of which is represented by a general formula
R--E-CH.sub.2-A-CH.sub.2-E-
may be the same or different, and at least one among the n number of is an arylene group).
ORGANIC FLUORINE COMPOUND, LUBRICANT, AND PROCESSING METHOD OF MAGNETIC RECORDING MEDIUM
According to one aspect of the present invention, an organic fluorine compound is represented by a general formula
(R--E-CH.sub.2-A-CH.sub.2-E).sub.n--G(1B) (where n is an integer of 2 to 5, A is a divalent perfluoropolyether group, is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E and E are each independently an ether bond or an ester bond or a group that is represented by a chemical formula
OCH.sub.2CH(OH)CH.sub.2O
is a group in which n+1 hydrogen atoms are separated from benzene, G is an organic group containing a fullerene skeleton, the n number of groups each of which is represented by a general formula
R--E-CH.sub.2-A-CH.sub.2-E-
may be the same or different, and at least one among the n number of is an arylene group).