Hollow fibres of modified poly-(2,6-dimethyl-p-oxy-phenylene)

Details Hollow fibres of modified poly-(2,6-dimethyl-p-oxy-phenylene) Hollow fibres of modified poly-(2,6-dimethyl-p-oxy-phenylene)

1992-06-12

1992-12-29

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 455, 264193, 264196, 264197, 264198, 264150, 521 51, 55 16, C08J 934, D01F 1102, D01F 206

Patent

active

051751968

ABSTRACT:
A hollow fiber of amorphous, hydroxy-ethylated poly-(2,6-dimethyl-p-oxyphenylene) (PPO-OH) with a glass transition temperature (Tg) of from 180.degree. to 200.degree. C. is disclosed, which is formed by a high-density, microporous layer on a macroporous backing, and having an outer diameter comprised within the range of from 450 to 550 .mu.m and an inner diameter comprised within the range of from 250 to 400 .mu.m.
The process for preparing the hollow fibre and the use of said fibre in the processes of separation of gas mixtures are disclosed as well.

REFERENCES:
patent: 3402144 (1968-09-01), Hay
patent: 3442858 (1969-05-01), Hay
patent: 3522326 (1970-07-01), Bostick et al.
Vol. 11, No. 251 (C-440)(2698) Aug. 14, 1987 & JP-A-62 057 915 (Sumitomo Electrical Ind., Ltd.) Mar. 13, 1987 *abstract*.

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