Hollow foam molding and production method therefor

Details Hollow foam molding and production method therefor Hollow foam molding and production method therefor

B - Operations, Transporting

29

C

B29C 49/04 (2006.01) B29C 44/02 (2006.01) B32B 5/20 (2006.01)

Patent

CA 2555549

A method for producing a hollow foam molding having a thin and uniform wall thickness, including extruding a foamable melt containing a polypropylene resin having an equilibrium compliance J eo of 0.5 × 10 -3 to 1.8 × 10 -3 Pa-1 and a swell ratio S w of 2.5 or less and a physical blowing agent through a die to obtain a parison having a softened polypropylene resin foam layer, placing the parison in a mold, and blowing a gas into the parison to obtain a hollow foam molding having a hardened polypropylene resin foam layer with an apparent density of 0.35 to 0.65 g/cm3.

Affiliated with

Also associated with

Rating

Hollow foam molding and production method therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hollow foam molding and production method therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hollow foam molding and production method therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1608064