Reinforcing fibers and production method therefor, and molded article using same
AssigneeKuraray Co., Ltd.
InventorsToru Asada, Daisuke Koda, Shinichi Takemoto, Hiroyuki Kawai, Shuhei Yorimitsu
Life of this patent
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Abstract
Reinforcing fibers containing hydrophilic fibers and an adhesive component, wherein at least a part of the surfaces of the hydrophilic fibers have the adhesive component, the adhesive component contains a modified conjugated diene rubber having a hydrogen-bonding functional group in a part of the conjugated diene rubber, and the number of the hydrogen-bonding functional groups in the modified conjugated diene rubber is 2 to 150 per molecule on average; a method for producing the reinforcing fibers; and a molded article using the reinforcing fibers.
Claims20
Reinforcing fibers, comprising:
- hydrophilic fibers and
- an adhesive component,
- wherein:
- surfaces of the hydrophilic fibers are at least partially covered with the adhesive component,
- the adhesive component comprises a modified conjugated diene rubber having a hydrogen-bonding functional group in a part of the modified conjugated diene rubber, and an emulsifier,
- the number of the hydrogen-bonding functional groups in the modified conjugated diene rubber is from 2 to 150 per molecule on average,
- a melt viscosity measured at 38° C. of the modified conjugated diene rubber is from 0.1 to 4,000 Pa·s, and
- the number-average molecular weight (Mn) of the modified conjugated diene rubber is at least 20,000.
Reinforcing fibers, comprising:
- hydrophilic fibers and
- an adhesive component,
- wherein:
- surfaces of the hydrophilic fibers are at least partially covered with the adhesive component,
- the adhesive component comprises a modified conjugated diene rubber having a hydrogen-bonding functional group in a part of the modified conjugated diene rubber, and an emulsifier,
- the number of the hydrogen-bonding functional groups in the modified conjugated diene rubber is from 2 to 150 per molecule on average, and
- a melt viscosity measured at 38° C. of the modified conjugated diene rubber is from 85 to 4,000 Pa·s.
Reinforcing fibers, comprising:
- hydrophilic fibers and
- an adhesive component,
- wherein:
- surfaces of the hydrophilic fibers are at least partially covered with the adhesive component,
- the adhesive component comprises a modified conjugated diene rubber having a hydrogen-bonding functional group in a part of the modified conjugated diene rubber, and an emulsifier,
- the number of the hydrogen-bonding functional groups in the modified conjugated diene rubber is from 2 to 150 per molecule on average,
- a melt viscosity measured at 38° C. of the modified conjugated diene rubber is from 0.1 to 4,000 Pa·s, and
- an amount of the adhesive component adhered to the reinforcing fibers is 3.8% by mass or less.
Dependencies are inferred from the claim text.