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 system for acquiring support capability of mobile terminal by base station side system
Liquid crystal display backlight control
Digital microwave radio link with adaptive data rate
Medicament container
Formwork release composition and use thereof
Point-of-sale server and method
LED package with top and bottom electrodes
  Randomly Featured Patents
Coordinate determining device using spatial filters
Intruder detection security system
Connector and connector connecting body
Tamper-indicating closure and container package
Simultaneous data backup in a computer system
Spice grinding and dispensing mill
Narrowboat auxiliary heater and method of controlling same
Information processing apparatus and method
Railway vehicle bogie
Methods and systems for network traffic security