Polytetrafluoroethylene molding resin and processes

Details Polytetrafluoroethylene molding resin and processes Polytetrafluoroethylene molding resin and processes

1995-10-18

1998-01-27

Lee, Helen

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 59, 525189, 525199, C08J 922, C08J 916

Patent

active

057123152

ABSTRACT:
In this invention a new form of polytetrafluoroethylene has been found to be compression moldable to provide strong molded articles. It is also useful as an additive or strength binder. The new form is a compression molding powder comprised of comminuted, sheared particles of expanded porous polytetrafluoroethylene, said particles having a nudular-microfibrillar structure of irregular shape, and a mean particle size between 5 and 500 micrometers, and having a coating of a thermoplastic fluoropolymer on at least a portion of the particle. By irregular shape is meant that the nodes and fibrils do not have an ordered arrangement. The bulk density is about 0.06 to 0.2 g/cc.

REFERENCES:
patent: 3953412 (1976-04-01), Saito et al.
patent: 3953566 (1976-04-01), Gore
patent: 3981853 (1976-09-01), Manwiller
patent: 4379858 (1983-04-01), Suzuki
patent: 4454249 (1984-06-01), Suzuki et al.
patent: 4714748 (1987-12-01), Hoashi et al.
patent: 4770922 (1988-09-01), Hatakeyama et al.
patent: 4882113 (1989-11-01), Tu et al.
patent: 5071609 (1991-12-01), Tu et al.
patent: 5110527 (1992-05-01), Harada et al.
patent: 5118788 (1992-06-01), Hosokawa et al.
patent: 5156343 (1992-10-01), Sueyoshi et al.
patent: 5242765 (1993-09-01), Naimer et al.

Affiliated with

Also associated with

Rating

Polytetrafluoroethylene molding resin and processes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polytetrafluoroethylene molding resin and processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polytetrafluoroethylene molding resin and processes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-342886