US2025116060A1PendingUtilityA1
Treatment agent for carbon fiber precursor, and carbon fiber precursor
Est. expiryApr 15, 2042(~15.7 yrs left)· nominal 20-yr term from priority
D01F 6/18D01F 11/04D06M 13/2246D06M 13/2243D06M 2200/00D06M 15/53D06M 13/272D06M 13/188D06M 13/148D06M 2200/35D06M 2101/40D06M 13/17D06M 13/256D06M 13/224D06M 13/262
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Claims
Abstract
Disclosed is a carbon fiber precursor treatment agent that contains a smoothing agent (A) and (poly)oxyalkylene derivative (B). The smoothing agent (A) contains an ester compound (A1) of glycerin and a fatty acid containing fatty acid (X). The fatty acid (X) is a fatty acid with 16 to 24 carbon atoms. The proportion of the fatty acid (X), determined by the following mathematical equation, is 50% by mass or more: Proportion of fatty acid (X)=(Total mass of fatty acid with 16 to 24 carbon atoms derived from ester compound (A1) in the carbon fiber precursor treatment agent/Total mass of fatty acid derived from ester compound (A1) in the carbon fiber precursor treatment agent)×100.
Claims
exact text as granted — not AI-modified1 . A carbon fiber precursor treatment agent comprising:
a smoothing agent (A) that contains an ester compound (A1) of glycerin and a fatty acid containing fatty acid (X); and a (poly)oxyalkylene derivative (B), wherein the proportion of the fatty acid (X), determined by the following mathematical equation 1, is 50% by mass or more, and the fatty acid (X) is a fatty acid with 16 to 24 carbon atoms.
Proportion
of
fatty
acid
(
X
)
=
(
Total
mass
of
fatty
acid
with
16
to
24
carbon
atoms
derived
from
ester
compound
(
A
1
)
in
the
carbon
fiber
precursor
treatment
agent
/
Total
mass
of
fatty
acid
derived
from
ester
compound
(
A
1
)
in
the
carbon
fiber
precursor
treatment
agent
)
×
100
[
Mathematical
Equation
1
]
2 . The carbon fiber precursor treatment agent according to claim 1 , wherein the proportion of the fatty acid (X) determined by the mathematical equation 1 is 70% by mass or more.
3 . The carbon fiber precursor treatment agent according to claim 1 , wherein the (poly)oxyalkylene derivative (B) contains a compound obtained by adding an alkylene oxide with 2 to 4 carbon atoms to an ester compound of a monohydric to trihydric alcohol and a monovalent fatty acid with 16 to 24 carbon atoms.
4 . The carbon fiber precursor treatment agent according to claim 1 , wherein when the sum of the contents of the smoothing agent (A) and the (poly)oxyalkylene derivative (B) in the carbon fiber precursor treatment agent is taken as 100% by mass, the carbon fiber precursor treatment agent contains the smoothing agent (A) in an amount of 10% by mass or more and 90% by mass or less and the (poly)oxyalkylene derivative (B) in an amount of 10% by mass or more and 90% by mass or less.
5 . The carbon fiber precursor treatment agent according to claim 1 , further comprising a condensed hydroxy fatty acid (C).
6 . The carbon fiber precursor treatment agent according to claim 5 , wherein when the sum of the contents of the smoothing agent (A), the (poly)oxyalkylene derivative (B), and the condensed hydroxy fatty acid (C) in the carbon fiber precursor treatment agent is taken as 100% by mass, the carbon fiber precursor treatment agent contains the smoothing agent (A) in an amount of 9.9% by mass or more and 89.9% by mass or less, the (poly)oxyalkylene derivative (B) in an amount of 10% by mass or more and 90% by mass or less, and the condensed hydroxy fatty acid (C) in an amount of 0.1% by mass or more and 50% by mass or less.
7 . The carbon fiber precursor treatment agent according to claim 1 , further comprising an ionic component (D).
8 . The carbon fiber precursor treatment agent according to claim 1 , further comprising a condensed hydroxy fatty acid (C) and an ionic component (D).
9 . The carbon fiber precursor treatment agent according to claim 8 , wherein when the sum of the contents of the smoothing agent (A), the (poly)oxyalkylene derivative (B), the condensed hydroxy fatty acid (C), and the ionic component (D) in the carbon fiber precursor treatment agent is taken as 100% by mass the carbon fiber precursor treatment agent contains the smoothing agent (A) in a proportion of 9.9% by mass or more and 89.9% by mass or less, the (poly)oxyalkylene derivative (B) in an amount of 9.9% by mass or more and 89.9% by mass or less, the condensed hydroxy fatty acid (C) in an amount of 0.1% by mass or more and 50% by mass or less, and the ionic component in an amount of 0.1% by mass or more and 10% by mass or less.
10 . A carbon fiber precursor to which the carbon fiber precursor treatment agent according to claim 1 is adhered.Join the waitlist — get patent alerts
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