DE3476039D1 - Vacuum pinning of molten thermoplastic film to a roughened casting roll - Google Patents

Vacuum pinning of molten thermoplastic film to a roughened casting roll

Info

Publication number
DE3476039D1
DE3476039D1 DE8484307275T DE3476039T DE3476039D1 DE 3476039 D1 DE3476039 D1 DE 3476039D1 DE 8484307275 T DE8484307275 T DE 8484307275T DE 3476039 T DE3476039 T DE 3476039T DE 3476039 D1 DE3476039 D1 DE 3476039D1
Authority
DE
Germany
Prior art keywords
thermoplastic film
molten thermoplastic
casting roll
roughened
pinning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8484307275T
Other languages
German (de)
Inventor
David Edward Heyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DuPont Teijin Films US LP
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority claimed from EP84307275A external-priority patent/EP0179173B2/en
Application granted granted Critical
Publication of DE3476039D1 publication Critical patent/DE3476039D1/en
Expired legal-status Critical Current

Links

DE8484307275T 1984-10-23 1984-10-23 Vacuum pinning of molten thermoplastic film to a roughened casting roll Expired DE3476039D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84307275A EP0179173B2 (en) 1982-08-20 1984-10-23 Vacuum pinning of molten thermoplastic film to a roughened casting roll

Publications (1)

Publication Number Publication Date
DE3476039D1 true DE3476039D1 (en) 1989-02-16

Family

ID=8192787

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484307275T Expired DE3476039D1 (en) 1984-10-23 1984-10-23 Vacuum pinning of molten thermoplastic film to a roughened casting roll

Country Status (1)

Country Link
DE (1) DE3476039D1 (en)

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: DUPONT TEIJIN FILMS U.S.LTD. PARTNERSHIP, WILMINGT