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
Motor with power-generation coil module
Apparatus for transmitting and receiving data in a wireless communication system and method thereof
Apparatus and method for weighing an item of mail during transport through a sorting installation and having an anti-vibration device
Magnetic disk and manufacturing method thereof
Load control device
Graphical planner
System and method for document orientation detection
  Randomly Featured Patents
Heat collecting and heat loss preventing apparatus
Hydrofoil device
Display housing for computing device
Electronic component feeding device and electronic component counting apparatus having the same
Plasticized electrode for an alkaline battery
Method of making a rotary drum filter and method of making an annular valve housing for such a drum filter
Fluorinated phenoxypropyl vinyl ether polymer
Flash-clear of ram array using partial reset mechanism
System for snapping a periferal device to a circumferential edge of a pedestal
Variable stroke property engine