Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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 providing charging status information to subscriber of communication service
High voltage fast recovery trench diode
Silicon carbide substrate, epitaxial wafer and manufacturing method of silicon carbide substrate
Peered proctoring
Multi-port, gigabit SERDES transceiver capable of automatic fail switchover
Vehicle display system or projection display for a motor vehicle, and calibration method
Image processing apparatus, image forming system, and computer-readable storage medium
  Randomly Featured Patents
Portable hydraulic vise
Gas fire log system with collapsing logs
Directional control device for aircraft
Digital AM transmitter
Apparatus and method for changing the dynamic response of an electromagnetically operated actuator
Injection syringe for medical purposes
Animal head processing apparatus with hog snout puller
Decorative ribbon
Fuel injection system
Method of fabricating semiconductor device