Acoustical open-cell polyolefins and process for making

Details Acoustical open-cell polyolefins and process for making Acoustical open-cell polyolefins and process for making

C - Chemistry, Metallurgy

08

J

C08J 9/00 (2006.01) B29C 44/56 (2006.01) C08J 9/38 (2006.01)

Patent

CA 2339847

This invention provides an expanded open-cell foam polymer composition comprising at least one linear or modified linear polyolefin, at least 50 % of the cells being open, and the cells having an average size of at least 1 millimeter. It is desirable that the composition have a sound absorption coefficient as determined by ASTM D 1050 at 1,000 Hz which is greater than 0.15. In preferred foams the composition has an airflow resistivity of less than about 800,000 Rayls/m.

L'invention concerne une composition polymère à alvéoles ouvertes expansées comprenant au moins une polyoléfine linéaire ou linéaire modifiée, au moins 50 % des alvéoles ouvertes, et la taille moyenne des alvéoles étant d'au moins 1 millimètre. Il est préférable que la composition ait un coefficient d'absorption de son tel que défini par ASTM D 1050 de 1 000 Hz, supérieur à 0,15. Dans des mousses préférées, la résistance à l'écoulement de l'air de la composition est inférieure à 800 000 Rayls/m environ.

Affiliated with

Also associated with

Rating

Acoustical open-cell polyolefins and process for making does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustical open-cell polyolefins and process for making, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustical open-cell polyolefins and process for making will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1674874