Process for producing cycloolefin resin composition
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 9, 2010
Grant Date -
Dec 27, 2007
app pub date -
Dec 27, 2005
filing date -
Dec 28, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for producing a cycloolefin resin composition comprising a cycloolefin resin and an additive by using a twin-screw extruder is provided, in which loss of the additive caused by volatilization through a vent during kneading is reduced and kneading of resin material with the additive can be sufficiently carried out. When the cycloolefin resin and the additive are kneaded by using a vented twin-screw extruder (10) to produce the cycloolefin resin composition containing the additive, an additive introduction opening (3) is disposed downstream of a vent (2) located nearest to a discharge opening (13) of the twin-screw extruder, and the additive is charged through the additive introduction opening located at a distance from the discharge opening of the twin-screw extruder in the range between longer than 10D and not longer than 30D.
First Claim
Family
International Classification(s)
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- B28C:PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY....
- B29B:PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE ....
- A21C:MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOU....
- B01F:MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
- D01F:CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL....
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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