Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Polypropylene fibers having improved heat-shrinkability and tenacity










Image Number 2 for United States Patent #4560734.

Polypropylene fibers having a much improved percentage heat shrinkage and also an improved tenacity are provided, which fibers comprise a polypropylene resin having a density of 0.905 or more, an isotactic pentad ratio of boiling n-heptane-insoluble portion (P.sub.0) of 0.960 or more and a ratio of pentad having two different kinds of configurations (P.sub.2), of 0.002 (0.2%) or less.








 
 
  Recently Added Patents
Snapshots in de-duplication
Method and apparatus for detecting and tracking vehicles
Pharmaceutical dosage form
Circuit device for preventing radiation emission in portable terminal with two cameras
Pet fish burial pod
Pixel structure of a solid-state image sensor employing a charge sorting method
Limit switch
  Randomly Featured Patents
Window with sliding and pivoted panes
Mass flow controller for control purge and managing method of the same
CRC counter normalization
Method for gluing plywood and LVL boards
Ink ribbon cassette for printer
Photoconductor unit with charge roll wiper for an image forming device
Method of manufacturing a fibre reinforced metal matrix composite article
Process for purifying hydrogen fluoride
Method of and apparatus for reproducing audio information, program storage device and computer data signal embodied in carrier wave
Developing device having liquid developer coating members, image forming apparatus, and developing method using the same