Method of making a fluid transmitting porous tube or sheet

Details Method of making a fluid transmitting porous tube or sheet Method of making a fluid transmitting porous tube or sheet

1974-04-22

1976-02-17

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

260 25E, 260 25HA, 264176R, 264209, 264DIG5, 264DIG13, B29D 2700, B29D 2304

Patent

active

039392376

ABSTRACT:
A novel tube or sheet-shaped fluid transmitting porous material containing as a substrate, a polyolefin. Such porous material can be readily produced by subjecting a mixture of a polyolefin, a specific secondary polymer and a decomposition type blowing agent to extrusion moulding. The present porous material has certain unique features in its structure characterized in that there are recurring communications between cell wall openings forming a passage through which a fluid can pass. This porous material has excellent gas and liquid transmitting properties as well as an excellent filtering property and, in addition, is superior in resistance to chemicals and also has mechanical strength. Therefore, the porous material according to this invention is widely applicable in agriculture and industry as well as in the fields of synthetic leather etc.

REFERENCES:
patent: 3207711 (1965-09-01), Spenadel et al.
patent: 3240727 (1966-03-01), Scalari et al.
patent: 3250730 (1966-05-01), Palmer
patent: 3358695 (1967-12-01), Blakey et al.
patent: 3488746 (1970-01-01), Gilbert
patent: 3491032 (1970-01-01), Skochdopole et al.
patent: 3539666 (1970-10-01), Schirmer
patent: 3562369 (1971-02-01), Chopra et al.
patent: 3576931 (1971-04-01), Chopra et al.
patent: 3610509 (1971-10-01), Winstead
patent: 3657165 (1972-04-01), Kawai et al.
patent: 3755208 (1973-08-01), Ehrenfreund
patent: 3810964 (1974-05-01), Ehrenfreund
Bernhardt, Ernest C., Edt. "Processing of Thermoplastic Material," New York, Reinhold, 1959, pp. 214-217, SPE Plastics Engineering Series).
McKelvey, James M., "Polymer Processing," New York, John Wiley and Sons, 1962, pp. 289-295.
Dubois, J. H. and Pribble, W. I., Edt. "Plastics Mold Engineering," revised edition, New York, Reinhold, 1965, pp. 505-512 (SPE Polymer Technology Series).
Harding, R. H., "Morphologies of Cellular Materials," In Resinography of Cellular Plastics, A Symposium presented at the 69th Annular Meeting of the ASTM, Atlantic City, N. J., June 26-July 1, 1966. ASTM Special Technical Publication No. 414, Philadelphia, Pa., ASTM, 1967, pp. 3-9.
Ingram, A. R.; R. R. Cobb; and L. C. Couchot, "The Microscopical Examination of Molded and Extruded Polystyrene Foams," In Resinography of Cellular Plastics, A Symposium presented at the 69th Annual Meeting of the ASTM Atlantic City, N. J., June 26-July 1, 1966, ASTM Special Technical Publication No. 414, Philadelphia, Pa., ASTM, 1967, pp. 53-55; 59-64.
Benning, Calvin J., "Plastic Foams, the Physics and Chemistry of Product Performance and Process Technology," Vol. II, Structure Properties and Applications, New York, Wiley-Interscience, 1969, pp. 11-31; 58-59; 81-93.

Affiliated with

Also associated with

Rating

Method of making a fluid transmitting porous tube or sheet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making a fluid transmitting porous tube or sheet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a fluid transmitting porous tube or sheet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1746848