Foamable olefin thermoplastic elastomer compositions and foamed

Details Foamable olefin thermoplastic elastomer compositions and foamed Foamable olefin thermoplastic elastomer compositions and foamed

1997-03-03

1998-07-28

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 92, 521 97, 521139, 521140, 525232, 525240, C08J 908, C08J 910

Patent

active

057864039

ABSTRACT:
Disclosed is a foamable olefin thermoplastic elastomer composition comprising (A) a partially crosslinked thermoplastic elastomer composition, (B) long-chain branch-containing polypropylene and (C) a foaming agent. The partially crosslinked thermoplastic elastomer composition (A) is obtained by dynamically heat-treating a mixture in the presence of organic peroxide, said mixture comprising specific proportions of a peroxide-crosslinking type olefin copolymer rubber (a), which is an ethylene/.alpha.-olefin copolymer rubber composed of ethylene, an .alpha.-olefin of 3 to 20 carbon atoms and optionally a nonconjugated diene, and a peroxide-decomposition type olefin plastic (b), which is an .alpha.-olefin (co)polymer containing a specific amount of an .alpha.-olefin of 3 to 20 carbon atoms and having a specific MFR. Also disclosed is a foamed product obtained by heating the foamable olefin thermoplastic elastomer composition. From the foamable olefin thermoplastic elastomer composition, a foamed product having an expansion ratio of at least 2 times, being free from surface roughening caused by defoaming, being soft to the touch and showing excellent heat resistance and weathering resistance can be produced with high productivity through simplified steps.

REFERENCES:
patent: 4212787 (1980-07-01), Matsuda et al.

Affiliated with

Also associated with

Rating

Foamable olefin thermoplastic elastomer compositions and 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 Foamable olefin thermoplastic elastomer compositions and foamed , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Foamable olefin thermoplastic elastomer compositions and foamed will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-24142