Winslow F Tinkham

US Patent:

50569961, Oct 15, 1991

Filed:

Feb 25, 1991

Appl. No.:

7/660124

Inventors:

Theodore G. Papastavros - Weston MA
Samuel A. Alexander - Concord MA
Michael D. Benedict - Quincy MA
Vincent Cioffi - Braintree MA
Russell B. Hodgdon - Sudbury MA
Emery Richard - Lynn MA
Winslow F. Tinkham - Ocala FL

Assignee:

Ionics, Incorporated - Watertown MA

International Classification:

B29C 3108

US Classification:

425110

Abstract:

This invention pertains to processes and apparatus for manufacturing supported, solid, polymeric sheets from: (I) liquids containing components reactable to polymers; and (II) one or more indefinitely long, foraminous substrates. A more or less continuous sandwich is formed of such substrate(s) and, faced on each side of the substrates as a group, film extending beyond the lateral edges of the substrate(s), the plane of the sandwich deviating from vertical by not more than about 45 degrees.

US Patent:

51941899, Mar 16, 1993

Filed:

Jun 28, 1991

Appl. No.:

7/722748

Inventors:

Theodore G. Papastavros - Weston MA
Samuel A. Alexander - Concord MA
Michael D. Benedict - Quincy MA
Vincent Cioffi - Braintree MA
Russell B. Hodgdon - Sudbury MA
Emery Richard - Lynn MA
Winslow Tinkham - Ocala FL

Assignee:

Ionics, Incorporated - Watertown MA

International Classification:

B29C 3918

US Classification:

264 22

Abstract:

Process for manufacturing supported, solid, polymeric sheets from: (I) liquids containing components reactable to polymers; and (II) one or more indefinitely long, foraminous substrates. A more or less continuous sandwich is formed of such substrate(s) and, faced on each side of the substrates as a group, film extending beyond the lateral edges of the substrate(s), the plane of the sandwich deviating from vertical by not more than about 45 degrees.