Expandable polypropylene resin particle and molded object...

Details Expandable polypropylene resin particle and molded object... Expandable polypropylene resin particle and molded object...

2007-11-27

2007-11-27

Zemel, Irina S (Department: 1711)

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

Synthetic resins

Cellular products or processes of preparing a cellular...

C521S059000, C521S134000, C521S142000, C521S143000

Reexamination Certificate

active

10507681

ABSTRACT:
A specific relationship must be met in case of:(a) a structural unit derived from propylene is present in 100 to 85 mole %, and a structural unit derived from ethylene and/or alpha-olefin with 4 to 20 carbons is present in 0 to 15 mole %;(b) a content of a position irregularity unit based on 2, 1-insertion of a propylene monomer unit in all propylene insertions, which is measured by 13C-NMR, is 0.5% to 2.0% and a content of a position irregularity unit based on 1,3-insertion of propylene monomer unit in all propylene insertions, which is measured by 13C-NMR, is 0.005% to 0.4%; and(c) a water vapor transmission rate is Y [g/m2/24 hr] as film and a melting point Tm[° C.] shows specific relationship.

REFERENCES:
patent: 3953558 (1976-04-01), Hatano et al.
patent: 4379859 (1983-04-01), Hirosawa et al.
patent: 4440703 (1984-04-01), Akiyama et al.
patent: 4464484 (1984-08-01), Yoshimura et al.
patent: 4602082 (1986-07-01), Akiyama et al.
patent: 4617323 (1986-10-01), Kuwabara et al.
patent: 4695593 (1987-09-01), Kuwabara et al.
patent: 4704239 (1987-11-01), Yoshimura et al.
patent: 4711287 (1987-12-01), Kuwabara et al.
patent: 4777000 (1988-10-01), Kuwabara et al.
patent: 4840973 (1989-06-01), Kuwabara et al.
patent: 5032620 (1991-07-01), Arai et al.
patent: 5468781 (1995-11-01), Sugano et al.
patent: 5716998 (1998-02-01), Munakata et al.
patent: 5747549 (1998-05-01), Tsurugai et al.
patent: 6034144 (2000-03-01), Shioya et al.
patent: 6051617 (2000-04-01), Sasaki et al.
patent: 6077875 (2000-06-01), Sasaki et al.
patent: 6150427 (2000-11-01), Ito et al.
patent: 6174930 (2001-01-01), Agarwal et al.
patent: 6313184 (2001-11-01), Sasaki et al.
patent: 6355696 (2002-03-01), Yamaguchi et al.
patent: 6451419 (2002-09-01), Tsurugai et al.
patent: 0 790 275 (1997-08-01), None
patent: 0 928 806 (1999-07-01), None
patent: 4-272942 (1992-09-01), None
patent: 6-240041 (1994-08-01), None
patent: 7-118323 (1995-05-01), None
patent: 10-045938 (1998-02-01), None
patent: 2001-172452 (2001-06-01), None
patent: 2002-275325 (2002-09-01), None
patent: 99/28374 (1999-06-01), None
patent: WO 01/32758 (2001-05-01), None
Udo Stehling, et al., “ansa-Zirconocene Polymerization Catalysts with Annelated Ring Ligands-Effects on Catalytic Activity and Polymer Chain Length”, ORGANOMETALLICS, vol. 13, pp. 964-970. Sep. 27, 1993.

Affiliated with

Also associated with

Rating

Expandable polypropylene resin particle and molded object... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expandable polypropylene resin particle and molded object..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable polypropylene resin particle and molded object... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3838964