METHOD FOR THE PRODUCING ANHYDRIDE-CONTAINING VINYL AROMATIC-VINYL CYANIDE COPOLYMERS HAVING REDUCED DIRT PARTICLE CONTENT
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Aug 23, 2012
app pub date -
Oct 25, 2010
filing date -
Oct 29, 2009
priority date (Note) -
Published
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
The present invention relates to processes for preparing copolymers A) with a reduced soil particle content, comprising
- 49.2 to 93.2% by weight of structural units which derive from one or more vinylaromatic monomers (component A1)),6 to 50% by weight of structural units which derive from one or more vinyl cyanides (component A2)),0.8 to 7% by weight of structural units which derive from one or more dicarboxylic anhydrides (component A3)) and0 to 25% by weight of structural units which derive from further copolymerizable monomers (component A4)),where the percentages by weight are each based on the total weight of the structural units which derive from components A1), A2), A3) and A4), and together add up to 100% by weight,by bulk or solution polymerization,it being essential to the invention that the mathematical product of the percentages by weight of the structural units which derive from component A2) and the percentages by weight of the structural units which derive from component A3) in the copolymer A) is in the range from 40%2 by weight to 65%2 by weight.
Loading the Abstract Image...
OK
First Claim
Family
Loading Family data...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully