Sealing composition and seals made by using the same

Details Sealing composition and seals made by using the same Sealing composition and seals made by using the same

2008-01-29

2008-01-29

Woodward, Ana L. (Department: 1711)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S181000, C525S184000

Reexamination Certificate

active

07323515

ABSTRACT:
The invention relates to a sealing composition which comprises a crosslinkable fluoroelastomer, a crosslinking agent for this elastomer and a reinforcing polyimide resin powder; and seals such as O-rings, made by molding the composition into a prescribed shape and crosslinking the molded article. According to the invention, seals free from metals and sulfur can be made from a fluoroelastomer suitable for the production unit for semiconductor devices without a scatter of physical properties within one seal or among seals, and the obtained seals are lowered in the compression set determined ate the same hardness level to cause little permanent set by compression in use, thus having a prolonged service life.

REFERENCES:
patent: 6642300 (2003-11-01), Kawaguchi et al.
patent: 54-57568 (1979-05-01), None
patent: 55-108485 (1980-08-01), None
patent: 5-171132 (1993-07-01), None
patent: 6-49438 (1994-02-01), None
patent: 10-139970 (1998-05-01), None
patent: 2000-119468 (2000-04-01), None
patent: 2000-309704 (2000-11-01), None

Affiliated with

Also associated with

Rating

Sealing composition and seals made by using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sealing composition and seals made by using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealing composition and seals made by using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2775704