EP0916394A2
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EP
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Method of manufacturing modified particles and manufacturing device therefor
Assignee: Sharp Corp
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Filing: 1998-11-12
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Granted: —
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Expires: 2018-11-12
Abstract
Abstract Particles containing a monomer A are exposed to a super-saturated vapor of a monomer B which differs from and is polymerizable with monomer A, thereby condensing monomer B on the surface of the particles. Polymerization of monomer A and monomer B simply and rapidly produces spherical modified particles of uniform diameter.
Inventors
- 👤 Kiyofumi Morimoto
- 👤 Takahiro Horiuchi
- 👤 Shigeaki Tasaka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 13:26
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/60; B01; B01J; B01J2/00; B01J2/006; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/3225; C08G18/3228; C08G69/00; C08G69/48
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
76 words
A method of manufacturing modified particles
which comprises exposing particles to a super-saturated
atmosphere of a modifying agent for
modifying surface properties of the particles, and
condensing the modifying agent on the surface of the
particles, wherein: the particles include a monomer A; the modifying agent comprises a monomer B, which differs from and is polymerizable with monomer A; and monomer A is caused to polymerize with monomer B condensed on the surface of the particles.
Claim 2
Dependent Claim
36 words
A method according to claim 1, further
comprising the preliminary step of exposing core
particles to a super-saturated atmosphere of monomer
A and thereby causing monomer A to condense on the
surface of the core particles.
Claim 3
Dependent Claim
14 words
A method according to claim 1, wherein the
particles are of monomer A alone.
Claim 4
Independent Claim
101 words
A method according to any one of claims 1 to 3,
further comprising the steps of: exposing particles including the polymer of
monomers A and B to a super-saturated vapor of a
monomer C thereby causing monomer C to condense on
the surface of the particles; and exposing the particles with monomer C condensed
on the surface thereof, to a super-saturated vapor
of a monomer D which differs from and is
polymerizable with monomer C, thereby causing
monomer D to condense on the surface of the
particles, and causing polymerization between
monomers C and D on the surface of the particles.
Claim 5
Independent Claim
21 words
A method according to any one of claims 1 to 4,
wherein after polymerization, impurities contained
in the particles are eliminated.
Claim 6
Dependent Claim
14 words
A method according to claim 5, wherein
impurities are eliminated by dissolution in water.
Claim 7
Independent Claim
22 words
A method according to any one of claims 1 to 6,
wherein monomers A and B co-polymerize to form a
cross-linked structure.
Claim 8
Independent Claim
53 words
A method according to any one of claims 1 to 7,
wherein one of monomers A and B includes a compound
having at least two amino or imino groups, and the
other includes a compound having at least two
haloformyl groups, at least two carboxylic anhydride
groups or at least two aldehyde groups.
Claim 9
Independent Claim
28 words
A method according to any one of claims 1 to 7,
wherein one of monomer A and B includes a compound
having two or more sulfonyl halide groups.
Claim 10
Dependent Claim
57 words
A method according to claim 9, wherein the
other of monomers A and B includes a compound having
two or more hydroxyl groups, two or more mercapto
groups, or two or more primary and/or secondary
amino groups, or at least one each of two or more
substituents selected from hydroxyl, mercapto,
primary amino and secondary amino groups.
Claim 11
Independent Claim
63 words
A method according to any one of claims 1 to 7,
wherein one of monomers A and B is a compound Z
having as functional groups two or more halogenated
acyl groups, and the other is a compound Y having as
functional groups two or more hydroxyl groups, two
or more mercapto groups or at least one hydroxyl
group and one mercapto group.
Claim 12
Independent Claim
82 words
A method according to any one of claims 1 to 7,
wherein one of monomers A and B is a compound X
having as functional groups at least two isocyanate
groups or at least two isothiocyanate groups, and
the other is a compound Y having as functional
groups two or more hydroxyl groups, two or more
mercapto groups, two or more primary and/or
secondary amino groups, or at least two functional
groups selected from hydroxyl, mercapto, primary
amino and secondary amino groups.
Claim 13
Independent Claim
26 words
A method according to any one of claims 1 to
12, wherein the step of polymerizing monomers A and
B is repeated a plurality of times.
Claim 14
Dependent Claim
21 words
A method according to claim 13, wherein
different respective monomers are polymerized for at
least two of the plurality of repetitions.
Claim 15
Independent Claim
23 words
A method according to any one of claims 1 to
14, wherein the particles are of a mixture of two or
more substances.
Claim 16
Independent Claim
16 words
A method according to any one of claims 1 to
15, wherein the particles are liquid.
Claim 17
Independent Claim
27 words
A method according to any one of claims 1 to
16, wherein of the monomers A and B, at least
monomer B is liquid at room temperature.
Claim 18
Independent Claim
105 words
A device for manufacturing modified particles,
comprising: a particle introducing section (4, 24), into
which particles containing a monomer A are admitted; a condensing section (2, 26), in which is
formed a super-saturated vapor of a monomer B
differing from and polymerizable with monomer A; and a mixing section (2, 22), which exposes the
particles admitted through the particle introducing
section (4, 24) to the super-saturated vapor of the
monomer B in the condensing section (2, 26), thereby
to cause monomer B to condense on the surface of the
particles, and to cause polymerization between
monomers A and B on the surface of the particles.
Claim 19
Dependent Claim
26 words
A device according to claim 18, further
comprising an impurity eliminating section (50),
which eliminates impurities contained in particles
discharged from the mixing section (2, 22).
References Cited (Backward Citations)
No citation records indexed.
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