Paper comprising aromatic polyester and process for producing th

Details Paper comprising aromatic polyester and process for producing th Paper comprising aromatic polyester and process for producing th

1995-06-05

1999-09-21

Czaja, Donald E.

Paper making and fiber liberation

Processes and products

Synthetic fiber

162146, 162138, D21H 1324

Patent

active

059549203

ABSTRACT:
A paper comprises 5 to 100% by weight of a thermotropic aromatic polyester pulp with constituting fibers having an average fiber diameter of at least 0.1 .mu.m and less than 10 .mu.m and substantially no branches, and is obtained by a process which comprises wet forming a paper material comprising 5 to 100% by weight of the above pulp which is obtained from sea-islands fibers comprising an islands component of the thermotropic aromatic polyester and a sea component of another polymer by dissolving or decomposing off the sea component before or after cutting the fibers to an average length of not more than 5 mm. The paper has excellent strength, texture, electric insulation property and like properties.

REFERENCES:
patent: 4330457 (1982-05-01), East et al.
patent: 4395307 (1983-07-01), Kastelic et al.
patent: 4529481 (1985-07-01), Yoshida et al.
patent: 4857148 (1989-08-01), Hawkins
patent: 5021123 (1991-06-01), Sweeny
patent: 5126012 (1992-06-01), Hendren et al.
patent: 5431782 (1995-07-01), Cassat
patent: 5454910 (1995-10-01), Yoon et al.

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