Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Propylene polymers for films










Image Number 10 for United States Patent #6583227.

This invention relates generally to crystalline propylene polymers, to methods for their production and to methods for their use in film applications. Specifically, this invention relates to crystalline propylene polymers comprising both propylene homopolymer and propylene copolymer. The compositions are prepared using metallocene catalyst systems comprising at least two metallocenes in a polymerization process that involves the sequential or parallel polymerization of propylene homopolymer and copolymer using propylene with a small amount of comonomer, preferably ethylene. The polymerization is catalyzed by a dual metallocene catalyst system. The resulting polymers have a broad, bimodal molecular weight distribution. The resulting polymers are excellent for use in the production of biaxially oriented films or non-oriented films. Films prepared with these propylene polymers have a significantly broader processability range and can be evenly stretched at lower temperature compared to films prepared from traditional propylene polymer.








 
 
  Recently Added Patents
Method and apparatus for visual neural stimulation
Scalable packet processing systems and methods
Front cover of an electronic device
System and method for data reconfiguration in an optical communication network
System and method for providing advice to consumer regarding a payment transaction
Signal processing apparatus, display apparatus having the same, and signal processing method
Restore software with aggregated view of content databases
  Randomly Featured Patents
Implant delivery and deployment system and method
Photovoltaic control system
Breech for a repeating rifle and barrel for such a breech
Personal identification and promotional system using personal and medical information
Fork for a lift truck vehicle
System of protecting the edges and construction joints of cast in place concrete slabs
Box unloader
Underground storage tank access/isolation riser assembly, method, and kit
Anti-viral compounds
Two way cushioning trailer hitch