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GB890004A - Improvements in or relating to the production of polyester films - Google Patents

Improvements in or relating to the production of polyester films

Info

Publication number
GB890004A
GB890004A GB7832/60A GB783260A GB890004A GB 890004 A GB890004 A GB 890004A GB 7832/60 A GB7832/60 A GB 7832/60A GB 783260 A GB783260 A GB 783260A GB 890004 A GB890004 A GB 890004A
Authority
GB
United Kingdom
Prior art keywords
film
stretch ratio
point
residues
temperature
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
GB7832/60A
Other languages
English (en)
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 GB890004A publication Critical patent/GB890004A/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
    • B29C55/146—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly transversely to the direction of feed and then parallel thereto
    • 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)
GB7832/60A 1959-03-12 1960-03-04 Improvements in or relating to the production of polyester films Expired GB890004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US890004XA 1959-03-12 1959-03-12

Publications (1)

Publication Number Publication Date
GB890004A true GB890004A (en) 1962-02-21

Family

ID=22214768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7832/60A Expired GB890004A (en) 1959-03-12 1960-03-04 Improvements in or relating to the production of polyester films

Country Status (4)

Country Link
BE (1) BE588418A (zh)
DE (1) DE1268818B (zh)
GB (1) GB890004A (zh)
NL (1) NL249286A (zh)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627088A (en) * 1950-03-22 1953-02-03 Du Pont Preparation of oriented coated films
US2823421A (en) * 1952-05-12 1958-02-18 Du Pont Stretching of polyethylene terephthalate film

Also Published As

Publication number Publication date
DE1268818B (de) 1968-05-22
BE588418A (zh)
NL249286A (zh)

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