Resources Contact Us Home
Aromatic polyester resin composition and process for production thereof

Image Number 5 for United States Patent #8133955.

An aromatic polyester resin composition, comprising: a melt-kneaded product of 99-70 weight parts of an aromatic polyester resin and 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin, wherein the composition is characterized by a transesterification rate C.sub.TE (%) of 20-60% determined by formula (1) below based on a peak integration ratio of methylene group in polyglycolic acid appearing at .sigma.4.87 ppm with reference to tetramethylsilane according to .sup.1H-NMR measurement: C.sub.TE (%)=(1-I(B)/I(A)).times.100 (1), wherein I (A): a peak integration ratio of the methylene group of the polyglycolic acid main chain with respect to the alkylene group of the aromatic polyester main chain calculated from the components weight ratio; and I (B): a peak integration ratio of the methylene group of polyglycolic acid main chain to the alkylene group of the aromatic polyester main chain in the resin composition. As a result, the aromatic polyester resin composition obtained by adding a relatively small amount of polyglycolic acid resin is provided with a good harmony of gas-barrier property and transparency.

  Recently Added Patents
Non-volatile memory and method having efficient on-chip block-copying with controlled error rate
Case for electronic device
Oil extractor and the preparation method thereof
Monitoring cloud-runtime operations
Information processing apparatus and update information obtainment method
Vehicle battery with cell balancing current paths and method of charging the same
Secure soft SIM credential transfer
  Randomly Featured Patents
Personal computer
Golf putting game apparatus
Method for controlling an absorption system
Distributed cooperative memory for interactive and scalable video-on-demand system
Device for generating an artificial constriction in the gastrointestinal tract
Telescopic shaft
Flash memory having multi-level architecture
Hermetic wafer scale integrated circuit structure
Adsorbent structures for removal of water and fuel contaminants in engine oil
Transponder communication station provided with a transmission coil configuration with three transmission coils