WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1993020395) APPARATUS TO DRY/HEAT TREAT CONTINUOUS WEB STOCK OF FILM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1993/020395    International Application No.:    PCT/US1993/001725
Publication Date: 14.10.1993 International Filing Date: 03.03.1993
IPC:
B29B 13/06 (2006.01), B29C 35/04 (2006.01), B29C 35/06 (2006.01), B29C 35/08 (2006.01), B29C 37/00 (2006.01), B29C 67/24 (2006.01), B29C 71/02 (2006.01), F26B 13/10 (2006.01)
Applicants: THE DOW CHEMICAL COMPANY [US/US]; 2030 Dow Center, Abbott Road, Midland, MI 48640 (US)
Inventors: DIXIT, Thuan, P.; (US).
LOUKS, Paul, T.; (US)
Agent: BRUMM, Margaret, M.; The Dow Chemical Company, Patent Dept., P.O. Box 1967, Midland, MI 48641-1967 (US)
Priority Data:
07/859,177 27.03.1992 US
Title (EN) APPARATUS TO DRY/HEAT TREAT CONTINUOUS WEB STOCK OF FILM
(FR) APPAREIL DESTINE A SECHER/TRAITER THERMIQUEMENT UNE BANDE CONTINUE DE FILM
Abstract: front page image
(EN)An apparatus (10) for the constrained drying and/or heat treating of a continuous roll of film. This apparatus (10) includes a mechanism (46) which grasps a film (112) by its edges and moves said film (112) through a drying zone, with said mechanism (46) holding said film taut without substantial stretching of said film in the drying zone, and a means (104) to remove the evaporated solvent from said apparatus (10). The apparatus (10) is particularly useful for drying film of polybenzoxazole, polybenzothiazole and copolymers thereof, as well as molecular composite films. A method of drying/heat treating film is also disclosed.
(FR)Appareil (10) destiné à sécher et/ou à traiter thermiquement sous contrainte un rouleau continu de film, comportant un mécanisme (46) qui saisit un film (112) par ses bords et fait avancer ledit film à travers une zone de séchage, ledit mécanisme (46) maintenant le film fortement tendu, mais sans étirement considérable dudit film dans la zone de séchage, et un dispositif (104) permettant d'enlever le solvant évaporé dudit appareil (10). Cet appareil (10) est particulièrement utile pour sécher des films en polybenzoxazole, en polybenzothiazole et en copolymères desdites substances, ainsi que des films composites moléculaires. Un procédé de séchage/traitement thermique des films est également décrit.
Designated States: CA, JP, KR.
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: English (EN)
Filing Language: English (EN)