Process for producing oxygen absorbing polyamide resin...

Details Process for producing oxygen absorbing polyamide resin... Process for producing oxygen absorbing polyamide resin...

2005-04-26

2005-04-26

Thexton, Matthew A. (Department: 1714)

Compositions

Reductive bleachant, deoxidant, reductant, or generative

Deoxidant or oxygen scavenging

C524S706000

Reexamination Certificate

active

06884366

ABSTRACT:
In the process for producing an oxygen absorbing polyamide resin composition of the present invention, a diamine component containing 70 mol % or higher of m-xylylenediamine is polycondensed with a dicarboxylic acid component containing 50 mol % or higher of adipic acid in the presence of a phosphorus compound. A compound or complex containing at least one metal selected from the group consisting of transition metals of Group VIII of the Periodic Table, manganese, copper and zinc is added to reaction system either prior to initiation of the polycondensation reaction or during the polycondensation reaction such that a ratio (P/M) of a concentration of phosphorus P (mmol/g) in the phosphorus compound contained in the polyamide resin composition to a concentration of the metal M (mmol/g) in the polyamide resin composition is 0.02 to 1.0.

REFERENCES:
patent: 2705227 (1955-03-01), Stamatoff
patent: 3260697 (1966-07-01), Babler
patent: 3330802 (1967-07-01), Ciceri et al.
patent: 3553161 (1971-01-01), Hermann et al.
patent: 3594346 (1971-07-01), Hermann et al.
patent: 4237034 (1980-12-01), Tomka et al.
patent: 5034252 (1991-07-01), Nilsson et al.
patent: 5302430 (1994-04-01), Ardéchir et al.
patent: 6689437 (2004-02-01), Ubara et al.
patent: 0 301 719 (1989-02-01), None
patent: 0 542 512 (1993-05-01), None
patent: WO 00-058404 (2000-10-01), None
European Search Report dated Jul. 29, 2003 for EP 03 00 4919.

Affiliated with

Also associated with

Rating

Process for producing oxygen absorbing polyamide resin... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing oxygen absorbing polyamide resin..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing oxygen absorbing polyamide resin... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3415460