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
Method and apparatus for detection of LVDT core fallout condition
Information processing apparatus, non-transitory computer-readable recording medium, and information processing method
Sensor apparatus and information processing apparatus
Image forming apparatus with enhanced display of guidance information
Method for producing a flexible composite elastomeric polyurethane skin
Projection screen and projection system having the same
Methods for increasing efficacy of FOLR1 cancer therapy
  Randomly Featured Patents
Accessing virtual disk content of a virtual machine using a control virtual machine
Method for manufacturing inorganic membranes by organometallic chemical vapor deposition
Drive train for overhead cam engine
Integrated circuit devices containing isolated dielectric material
Double-diffused drain CMOS process using a counterdoping technique
Circuits and methods for slew rate control and current limiting in switch-mode systems
Stabilized oily preparation of 1.alpha.-hydroxy-vitamin D and method for manufacturing the same
Image-capturing and data extraction device
Control cabinet with air conditioning device
Modular ink-jet hard copy apparatus and methodology