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US 2013/0260131 A1Published application
Thermoplastic molding preform
OwnerSatoshi SEIKE, Makoto Kibayashi +3inventors
InventorsSatoshi SEIKE, Makoto Kibayashi, Kishio Miwa, Anand Valliyur Rau, Leigh A. Hudson
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Abstract
A thermoplastic molding preform is made of a carbon fiber, which is coated with a sizing at an amount X between 0.05 and 0.30 weight %. The sizing is formed of a heat resistant polymer or a precursor of the heat resistant polymer. The amount X of the sizing is expressed with a following formula: X = W 0 - W 1 W 0 × 100 where W0 is the weight of the carbon fiber with the sizing, and W1 is the weight of the carbon fiber without the sizing.
Claims28
A thermoplastic molding perform, comprising:
- thermoplastic fibers;
- and
- carbon fibers coated with a sizing at an amount X between 0.05 and 0.30 weight %, said sizing being formed of a heat resistant polymer or a precursor of the heat resistant polymer, said amount X being expressed with a following formula:
- X
- =
- W
- 0
- -
- W
- 1
- W
- 0
- ×
- 100
- where W0 is a weight of the carbon fiber with the sizing, and W1 is a weight of the carbon fiber without the sizing.
12 more elements
Dependencies are inferred from the claim text.