GB1000361A - Improvements in or relating to polyethylene terepthalate films - Google Patents

Improvements in or relating to polyethylene terepthalate films

Info

Publication number
GB1000361A
GB1000361A GB791562A GB791562A GB1000361A GB 1000361 A GB1000361 A GB 1000361A GB 791562 A GB791562 A GB 791562A GB 791562 A GB791562 A GB 791562A GB 1000361 A GB1000361 A GB 1000361A
Authority
GB
United Kingdom
Prior art keywords
film
treatment
subjected
heat treatment
heat
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
GB791562A
Inventor
Hirosuke Yumoto
Kazuya Harada
Masaaki Itoga
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.)
Toray Industries Inc
Original Assignee
Toyo Rayon Co Ltd
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 Toyo Rayon Co Ltd filed Critical Toyo Rayon Co Ltd
Priority to GB791562A priority Critical patent/GB1000361A/en
Publication of GB1000361A publication Critical patent/GB1000361A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor

Abstract

1,000,361. Polyethylene terephthalate films. TOYO RAYON KABUSHIKI KAISHA. Feb. 28, 1962, No. 7915/62. Heading B5B. A polyethylene terephthalate film which has been stretched longitudinally and transversely is subjected to a first heat treatment at 150‹ to 250‹ C. whilst held under tension, the longitudinal and transverse dimensions being maintained substantially constant, and thereafter subjected to a second heat-treatment at 150‹ to 250‹ C. whilst allowing the film to relax along its longitudinal and/or transverse dimensions by from 2 to 30%. The second heat treatment may be carried out at a temperature equal to, or higher than, the temperature of the first heat treatment. If desired, the film may be subjected to a third heat treatment at 150‹ to 250‹ C. Film may be subjected to each heat-treatment for 2-30 sees. Flat film may be treated using a tenter frame, and tubular film may be treated while inflated. Treatment enhances the dimensional stability of the film.
GB791562A 1962-02-28 1962-02-28 Improvements in or relating to polyethylene terepthalate films Expired GB1000361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB791562A GB1000361A (en) 1962-02-28 1962-02-28 Improvements in or relating to polyethylene terepthalate films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB791562A GB1000361A (en) 1962-02-28 1962-02-28 Improvements in or relating to polyethylene terepthalate films

Publications (1)

Publication Number Publication Date
GB1000361A true GB1000361A (en) 1965-08-04

Family

ID=9842240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB791562A Expired GB1000361A (en) 1962-02-28 1962-02-28 Improvements in or relating to polyethylene terepthalate films

Country Status (1)

Country Link
GB (1) GB1000361A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2281208A1 (en) * 1974-08-05 1976-03-05 Du Pont PERFECTED THERMOFIXING PROCESS FOR POLYESTER FILMS
DE2701491A1 (en) * 1976-01-16 1977-07-28 Eastman Kodak Co PROCESS FOR DEVELOPING A VISIBLE IMAGE IN A THERMO-SENSITIVE RECORDING MATERIAL
US4124431A (en) * 1976-03-15 1978-11-07 Stauffer Chemical Company Dimensionally stable, calendered vinyl film
DE2807576A1 (en) * 1978-02-22 1979-08-23 Siemens Ag Electrical plate capacitors having dimensional stability at high temp. - have conductive plates and insulating plates made from same plastics material but of different shrinkage
US4308342A (en) 1980-10-31 1981-12-29 Eastman Kodak Company Dimensionally stabilized imaging element and method
US4347307A (en) 1980-10-31 1982-08-31 Eastman Kodak Company Dimensionally stabilized imaging element and method
US6303067B1 (en) 1998-11-13 2001-10-16 3M Innovative Properties Company Method of stretching films according to an overbias or overstretch stretch profile
US6965474B2 (en) 2003-02-12 2005-11-15 3M Innovative Properties Company Polymeric optical film

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2281208A1 (en) * 1974-08-05 1976-03-05 Du Pont PERFECTED THERMOFIXING PROCESS FOR POLYESTER FILMS
DE2701491A1 (en) * 1976-01-16 1977-07-28 Eastman Kodak Co PROCESS FOR DEVELOPING A VISIBLE IMAGE IN A THERMO-SENSITIVE RECORDING MATERIAL
US4076532A (en) * 1976-01-16 1978-02-28 Eastman Kodak Company Thermosensitive image-forming element and method of processing thereof
US4124431A (en) * 1976-03-15 1978-11-07 Stauffer Chemical Company Dimensionally stable, calendered vinyl film
DE2807576A1 (en) * 1978-02-22 1979-08-23 Siemens Ag Electrical plate capacitors having dimensional stability at high temp. - have conductive plates and insulating plates made from same plastics material but of different shrinkage
US4308342A (en) 1980-10-31 1981-12-29 Eastman Kodak Company Dimensionally stabilized imaging element and method
US4347307A (en) 1980-10-31 1982-08-31 Eastman Kodak Company Dimensionally stabilized imaging element and method
US6303067B1 (en) 1998-11-13 2001-10-16 3M Innovative Properties Company Method of stretching films according to an overbias or overstretch stretch profile
US6965474B2 (en) 2003-02-12 2005-11-15 3M Innovative Properties Company Polymeric optical film

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