Process for continuous preparation of a prepolymer based on phenolic resins, oxazolines and epoxides
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 16, 2014
Grant Date -
May 17, 2012
app pub date -
Nov 16, 2011
filing date -
Nov 17, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Process for the continuous preparation of prepolymers based on phenolic resin, an oxazoline component and an epoxide in the presence of a catalyst, including supplying the phenolic resin and the oxazoline component to an extruder in a stream A; a Lewis adduct of boron trifluoride or of aluminum trichloride, or arylsulphonic acids or alkylsulphonic acids, or latent arylsulphonic acids or latent alkylsulphonic acids, in a stream B, and the epoxide in a stream C, the infeed of stream A being situated, as seen in extrusion direction, before the infeed of stream C, these reactants are mixed at a reaction temperature of 120 to 200° C. with a residence time in the extruder of 3 seconds to 15 minutes, and then the product discharge of the extruder is cooled to a temperature of less than 45° C. within from 30 to 60 seconds.
First Claim
Family
International Classification(s)
- B05D:PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
- [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