Method for and apparatus for preparing multi-cellular foamed...

B - Operations – Transporting – 29 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

18/663

B29C 67/20 (2006.01)

Patent

CA 1214910

ABSTRACT OF THE DISCLOSURE A method for preparing a multi-cellular foamed board of thermoplastic resin which comprises forming under pressure in a die a thermoplastic resin melt containing a foaming agent to give the resin melt a shape of a flat board having a broad width compared with a thickness thereof, extruding the resin melt from the die having the convex forward end with a middle portion in the width direction thereof protruding the greatest toward the extruding direction, introducing thus extruded resin melt immediately into a moulding passage having a concave end engaging with the said convex forward end of the die, allowing the resin melt to expand in the thickness direction at the portion adjacent to and extending along the concave end of the passage, and thereafter allowing the resin melt to expand in both the thickness and width directions of the board in the passage.

446174

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method for and apparatus for preparing multi-cellular foamed... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for and apparatus for preparing multi-cellular foamed..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for and apparatus for preparing multi-cellular foamed... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1185753

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.