Paper making and fiber liberation – Processes and products – Synthetic fiber
Reexamination Certificate
2005-09-13
2005-09-13
Chin, Peter (Department: 1731)
Paper making and fiber liberation
Processes and products
Synthetic fiber
C162S146000, C162S206000
Reexamination Certificate
active
06942757
ABSTRACT:
A process for producing a paper made essentially of a para-aromatic polyamide and having agglutinate portions, the process including subjecting to papermaking a composition comprising at least one member selected from the group of short fibers, staple fibers, pulp and polymer particles of a para-aromatic polyamide swollen with water, and then drying the resulting wet paper under pressure, preferably after removal of free water attached thereto. The para-aromatic polyamide paper obtained has heat resistance and stiffness and also has a high breaking length. This paper is thus useful as an insulating paper and can also be made useful as a material for composite materials by imparting other functions to the paper.
REFERENCES:
patent: 2999788 (1961-09-01), Winthrop
patent: 3068527 (1962-12-01), Morgan
patent: 3671542 (1972-06-01), Kwolek
patent: 4752355 (1988-06-01), Provost
patent: 4959453 (1990-09-01), Sweeny
patent: 5026456 (1991-06-01), Hesler et al.
patent: 5028372 (1991-07-01), Brierre et al.
patent: 5076887 (1991-12-01), Hendren
patent: 5223094 (1993-06-01), Kirayoglu et al.
patent: 0 572 002 (1993-01-01), None
Abstract of Japanese Patent No. JP3039539 dated Jul. 6, 1989.
Abstract of Japanese Patent No. JP55014167 dated Jul. 17, 1978.
Abstract of Japanese Patent No. JP57017886 dated Jul. 7, 1980.
Abstract of Japanese Patent No. J5 9163-418-A dated Jan. 3, 1983.
International Serarch Report PCT/EP 94/02384 dated Dec. 22, 1994.
Iwama Masanobu
Takahashi Tsutomu
Chin Peter
Oliff & Berridg,e PLC
Teijin Twaron B.V.
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