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BE753744A - METHOD AND DEVICE FOR SPREADING POLYMERIC FILMS - Google Patents

METHOD AND DEVICE FOR SPREADING POLYMERIC FILMS

Info

Publication number
BE753744A
BE753744A BE753744A BE753744A BE753744A BE 753744 A BE753744 A BE 753744A BE 753744 A BE753744 A BE 753744A BE 753744 A BE753744 A BE 753744A BE 753744 A BE753744 A BE 753744A
Authority
BE
Belgium
Prior art keywords
polymeric films
spreading
spreading polymeric
films
polymeric
Prior art date
Application number
BE753744A
Other languages
French (fr)
Inventor
G Peet
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of BE753744A publication Critical patent/BE753744A/en

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
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; 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)
BE753744A 1969-07-23 1970-07-22 METHOD AND DEVICE FOR SPREADING POLYMERIC FILMS BE753744A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84414069A 1969-07-23 1969-07-23

Publications (1)

Publication Number Publication Date
BE753744A true BE753744A (en) 1970-12-31

Family

ID=25291925

Family Applications (1)

Application Number Title Priority Date Filing Date
BE753744A BE753744A (en) 1969-07-23 1970-07-22 METHOD AND DEVICE FOR SPREADING POLYMERIC FILMS

Country Status (6)

Country Link
BE (1) BE753744A (en)
CA (1) CA939479A (en)
DE (1) DE2036624C2 (en)
FR (1) FR2055347A5 (en)
GB (1) GB1319320A (en)
NL (1) NL172130C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19546671A1 (en) * 1995-12-15 1997-06-19 Hoechst Trespaphan Gmbh Process for longitudinal stretching in the production of oriented polypropylene films
JP6757520B2 (en) * 2015-02-20 2020-09-23 東レ株式会社 Manufacturing method of microporous plastic film
CN111204036A (en) * 2020-03-16 2020-05-29 福建宏科新材料科技有限公司 A breathable film stretching device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547736A (en) * 1947-08-08 1951-04-03 Polaroid Corp Process for stretching continuous materials such as sheeting and the like
BE573836A (en) * 1957-12-12
GB890005A (en) * 1959-06-23 1962-02-21 Du Pont Improvements in or relating to the stretching of organic polymer film
NL285743A (en) * 1961-11-21
US3243844A (en) * 1964-04-28 1966-04-05 Marshall And Williams Corp Longitudinal web stretching machine
BE669312A (en) * 1964-09-07

Also Published As

Publication number Publication date
NL172130C (en) 1983-07-18
GB1319320A (en) 1973-06-06
DE2036624C2 (en) 1982-02-04
NL7010803A (en) 1971-01-26
DE2036624A1 (en) 1971-02-04
CA939479A (en) 1974-01-08
NL172130B (en) 1983-02-16
FR2055347A5 (en) 1971-05-07

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: E.I. DU PONT DE NEMOURS AND CY

Effective date: 19900722