Antistatic woven coated polypropylene fabric

Details Antistatic woven coated polypropylene fabric Antistatic woven coated polypropylene fabric

1991-02-07

1991-12-10

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

383117, 383108, 428226, 428229, 428257, 428922, B32B 700

Patent

active

050716999

ABSTRACT:
The present invention provides for an anti-static flexible fabric material formed from woven, axially oriented crystalline polypropylene yarn, said fabric further characterized as having a coating of a flexible, thermoplastic polymer on one or both sides of the fabric. Anti-static properties are imparted to the fabric by formulating the thermoplastic coating to contain from about 0.2 to about 8% by weight of a polyol ester (preferably glycerol) of a C.sub.10 to C.sub.28 fatty acid. The polypropylene yarn may optionally itself also contain a lesser amount of the polyol ester of a C.sub.10 to C.sub.28 fatty acid to provide a fabric having even more enhanced anti-static properties. In another embodiment, the polypropylene yarn may additionally have interwoven therewith or in contact therewith at intervals conductive yarns to provide even more enhanced anti-static properties.
A particular advantage of the fabrics of the present invention is that containers constructed therefrom need not be grounded during filling and emptying operations. As static charges are generated, the electrons can flow across the fabric and dissipate or bleed into the atmosphere almost immediately.

REFERENCES:
patent: 3470928 (1969-10-01), Schwartz
patent: 3660150 (1972-05-01), Cooper
patent: 3952128 (1976-04-01), Ogata et al.
patent: 3987231 (1976-10-01), Hochreuter
patent: 4207937 (1980-06-01), Sandeman et al.
patent: 4307144 (1981-12-01), Sanders et al.
patent: 4431316 (1984-02-01), Massey
patent: 4666764 (1987-05-01), Kobayashi et al.
Electronics, Packaging Spur Developments in Antistats, pp. 44-47; Plastics World, Mar. 1989.

Affiliated with

Also associated with

Rating

Antistatic woven coated polypropylene fabric does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antistatic woven coated polypropylene fabric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antistatic woven coated polypropylene fabric will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1039550