Pre-expanded particulate polypropylene-based resin and...

Details Pre-expanded particulate polypropylene-based resin and... Pre-expanded particulate polypropylene-based resin and...

2005-11-18

2011-12-27

Jagannathan, Vasu (Department: 1764)

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

Synthetic resins

Cellular products or processes of preparing a cellular...

C521S056000, C521S142000, C521S060000, C521S057000, C525S240000

Reexamination Certificate

active

08084509

ABSTRACT:
The present invention provides a pre-expanded particulate polyolefin-based resin capable of easily attaining satisfactory secondary expandability, satisfactory surface appearance, and satisfactory dimensional stability even when it is intended to obtain an in-mold expansion molded article having a thin-wall shape. The present invention provides a pre-expanded particulate polypropylene-based resin including a polypropylene-based resin X as a base resin, where the resin X includes a resin mixture of at least a polypropylene-based resin A having a melting point of 140° C. or lower and a polypropylene-based resin B having a melting point of 145° C. or higher, and the resin mixture is modified by an organic peroxide so as to have a melt index of 5 g/10 min or more and less than 20 g/10 min.

REFERENCES:
patent: 4510031 (1985-04-01), Matsumura et al.
patent: 4761431 (1988-08-01), Nakamura
patent: 5763498 (1998-06-01), Knaus
patent: 6166096 (2000-12-01), Ichimura et al.
patent: 6355696 (2002-03-01), Yamaguchi et al.
patent: 2001/0016610 (2001-08-01), Maletzko et al.
patent: 2003/0124335 (2003-07-01), Sasaki et al.
patent: 2004/0249004 (2004-12-01), Coppini et al.
patent: 2005/0113473 (2005-05-01), Wada
patent: 58-145739 (1983-08-01), None
patent: 60-235850 (1985-11-01), None
patent: 10-251437 (1998-09-01), None
patent: 11-209502 (1999-03-01), None
patent: 2000-327825 (2000-11-01), None
patent: 2002-167460 (2002-06-01), None
patent: 2002-275299 (2002-09-01), None
patent: 2003-335892 (2003-11-01), None
patent: 2004-211065 (2004-07-01), None
patent: WO 02/32985 (2002-04-01), None
patent: WO 03/037971 (2003-05-01), None

Affiliated with

Also associated with

Rating

Pre-expanded particulate polypropylene-based resin and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pre-expanded particulate polypropylene-based resin and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pre-expanded particulate polypropylene-based resin and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4269067