Resin composition for intake system part for internal...

Details Resin composition for intake system part for internal... Resin composition for intake system part for internal...

2006-10-06

2009-08-11

Kamen, Noah (Department: 3741)

Internal-combustion engines

Intake manifold

Manifold material or composition

C524S528000

Reexamination Certificate

active

07571702

ABSTRACT:
A resin composition for a component of an air intake system of an internal combustion engine including the following components (1), (2), and (3):[Components](1) polypropylene-based resin: 67 to 89 wt %(2) acid-modified polypropylene-based resin: 1 to 3 wt %(3) carbon fiber and graphite powder: 10 to 30 wt %,the relationship between the thickness and the resonance frequency of a test specimen formed of the resin composition satisfying the following expression:in-line-formulae description="In-line Formulae" end="lead"?[Relationship between thickness and resonance frequency]resonance frequency (Hz)≧(98.5×thickness (mm))+15.in-line-formulae description="In-line Formulae" end="tail"?

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