New fluoroelastomers endowed with improved processability...

Details New fluoroelastomers endowed with improved processability... New fluoroelastomers endowed with improved processability...

C - Chemistry, Metallurgy

08

F

402/529, 402/533

C08F 2/02 (2006.01) C08F 16/24 (2006.01) C08F 214/22 (2006.01) C08F 214/26 (2006.01)

Patent

CA 2020854

1) Fluoroelastomers characterized by the presence of iodine or bromine atoms at the end of the polymeric chain in an amount equal to or lower than 1 iodine or bromine atom per polymeric chain, and by a bromine content in the chain ranging from 0.05 to 2% by weight referred to the total weight of the monomeric units. Said fluoroelastomers exhibit improved characteristics of processability, particularly as regards the utilization in injection molding processes and the detaching from the molds, as well as of stability to heat. 2) A process for preparing fluoroelastomers containing iodine or bromine atoms at the ends of the polymeric chain, in an amount equal to or lower than 1 iodine or bromine atom per polymeric chain, which process comprises polymerizing mixes of fluorinated monomers (VDF, TFE, HFP, FVE) in bulk in suspension, in aqueous emulsion, or in solution of organic solvents by means of radical starters, in the presence of compounds capable of providing T or Br ions in the polymerization medium and conditions.

Affiliated with

Also associated with

Rating

New fluoroelastomers endowed with improved processability... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with New fluoroelastomers endowed with improved processability..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New fluoroelastomers endowed with improved processability... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1384110