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GB1480157A - Heat-setting process for polyester film - Google Patents

Heat-setting process for polyester film

Info

Publication number
GB1480157A
GB1480157A GB3251475A GB3251475A GB1480157A GB 1480157 A GB1480157 A GB 1480157A GB 3251475 A GB3251475 A GB 3251475A GB 3251475 A GB3251475 A GB 3251475A GB 1480157 A GB1480157 A GB 1480157A
Authority
GB
United Kingdom
Prior art keywords
stage
heat
film
stretching
setting
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
GB3251475A
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.)
EIDP Inc
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
Publication of GB1480157A publication Critical patent/GB1480157A/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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

1480157 Heat-setting polyester film E I DU PONT DE NEMOURS & CO 4 Aug 1975 [5 Aug 1974] 32514/75 Heading B5B An asymmetrically, biaxially orientated polyethylene terephthalate film is heat set in three stages. The temperature in the first stage is from 150‹ to 250‹ C., in the second stage at least 5‹ C. below the first stage temperature but above the second order transition temperature of the film and in the third stage from 125‹ to 190‹ C. The heat-set film is quenched after the third stage. Preferred features are that the biaxial stretching is produced by firstly stretching longitudinally by up to twice its length, secondly stretching laterally from 3 to 4À5 times its width and thirdly stretching longitudinally again to 4À3 to 4À7 times its length. The film may also be longitudinally stretched by from 0À5 to 6À5% after the second heat-setting stage. The film may be allowed to release during the first setting and after the third.
GB3251475A 1974-08-05 1975-08-04 Heat-setting process for polyester film Expired GB1480157A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49498174A 1974-08-05 1974-08-05

Publications (1)

Publication Number Publication Date
GB1480157A true GB1480157A (en) 1977-07-20

Family

ID=23966747

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3251475A Expired GB1480157A (en) 1974-08-05 1975-08-04 Heat-setting process for polyester film

Country Status (9)

Country Link
JP (1) JPS5141068A (en)
BE (1) BE832116A (en)
CA (1) CA1062429A (en)
DE (1) DE2534983A1 (en)
FR (1) FR2281208A1 (en)
GB (1) GB1480157A (en)
IT (1) IT1040463B (en)
LU (1) LU73146A1 (en)
NL (1) NL7509247A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757629A (en) * 1980-09-25 1982-04-06 Teijin Ltd Manufacture of polyester film
JPS5832489A (en) * 1981-08-20 1983-02-25 日東電工株式会社 Polyester film for printed circuit
WO2017124632A1 (en) 2016-01-20 2017-07-27 江苏美的清洁电器股份有限公司 Vacuum cleaner
CN115447248B (en) * 2022-09-06 2024-02-06 扬州纳力新材料科技有限公司 Composite polymer film, method for producing same, metallized composite polymer film and use

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1000361A (en) * 1962-02-28 1965-08-04 Toyo Rayon Co Ltd Improvements in or relating to polyethylene terepthalate films

Also Published As

Publication number Publication date
BE832116A (en) 1976-02-05
NL7509247A (en) 1976-02-09
IT1040463B (en) 1979-12-20
JPS5141068A (en) 1976-04-06
FR2281208A1 (en) 1976-03-05
FR2281208B1 (en) 1979-06-15
LU73146A1 (en) 1976-03-02
CA1062429A (en) 1979-09-18
DE2534983A1 (en) 1976-02-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee