GB953330A - Improvements in polypropylene films - Google Patents

Improvements in polypropylene films

Info

Publication number
GB953330A
GB953330A GB1161360A GB1161360A GB953330A GB 953330 A GB953330 A GB 953330A GB 1161360 A GB1161360 A GB 1161360A GB 1161360 A GB1161360 A GB 1161360A GB 953330 A GB953330 A GB 953330A
Authority
GB
United Kingdom
Prior art keywords
parts
copolymer
sensitive adhesive
acrylic acid
polypropylene film
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
GB1161360A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB953330A publication Critical patent/GB953330A/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
    • B29C55/143—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly parallel to the direction of feed and then transversely 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
    • 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
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Adhesive Tapes (AREA)

Abstract

Pressure-sensitive adhesive tape is made by coating a crystalline polypropylene film which has been biaxially oriented by stretching longitudinally to effect area-type orientation, and transversely, at its natural inherent draw ratio, to effect line-type orientation, with a pressure-sensitive adhesive composition. Examples of such compositions include one comprising 100 parts crude rubber and 75 parts polymerized beta-pinene resin of melting point 115 DEG C. and a zero acid number, e.g. that sold under the Trade Name "Piccolite S-115", and a 20% solids solution in heptane and ethyl acetate of a copolymer of 95,5 parts by weight isooctyl acrylate and 4,5 parts acrylic acid. The latter composition may be coated on paper over a layer of silicone release agent and transferred to the polypropylene film, which is previously primed by a corona discharge treatment. To facilitate unwinding, a low adhesion back size may be used, suitably a copolymer of 60 parts of octadecyl acrylate and 40 parts of acrylic acid.
GB1161360A 1959-04-01 1960-04-01 Improvements in polypropylene films Expired GB953330A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80348059A 1959-04-01 1959-04-01

Publications (1)

Publication Number Publication Date
GB953330A true GB953330A (en) 1964-03-25

Family

ID=25186629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1161360A Expired GB953330A (en) 1959-04-01 1960-04-01 Improvements in polypropylene films

Country Status (2)

Country Link
DE (1) DE1504523A1 (en)
GB (1) GB953330A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384392A (en) * 1980-12-30 1983-05-24 Mobil Oil Corporation Apparatus for the biaxial orientation of a deformable sheet material
FR2586214A1 (en) * 1984-02-20 1987-02-20 Mitsubishi Monsanto Chem PROCESS FOR MANUFACTURING BIAXIALLY STRAINED POLYAMIDE FILMS
EP0240632A2 (en) * 1985-02-04 1987-10-14 Mitsubishi Kasei Polytec Company Heat-shrinkable biaxially drawn polyamide film and process for preparaton thereof
US10738225B2 (en) * 2014-04-02 2020-08-11 Tesa Se Method for joining two webs together with an adhesive tape

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2920514A1 (en) * 1979-05-21 1980-11-27 Unilever Nv DYNAMIC LOADABLE POLYPROPYLENE FILM
JPS5651330A (en) * 1979-10-05 1981-05-08 Toray Ind Inc Polypropylene film
JPS6147234A (en) * 1984-08-13 1986-03-07 Mitsubishi Plastics Ind Ltd Manufacturing method of heat shrinkable polypropylene film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384392A (en) * 1980-12-30 1983-05-24 Mobil Oil Corporation Apparatus for the biaxial orientation of a deformable sheet material
FR2586214A1 (en) * 1984-02-20 1987-02-20 Mitsubishi Monsanto Chem PROCESS FOR MANUFACTURING BIAXIALLY STRAINED POLYAMIDE FILMS
EP0240632A2 (en) * 1985-02-04 1987-10-14 Mitsubishi Kasei Polytec Company Heat-shrinkable biaxially drawn polyamide film and process for preparaton thereof
EP0240632A3 (en) * 1985-02-04 1988-02-03 Mitsubishi Kasei Polytec Company Heat-shrinkable biaxially drawn polyamide film and process for preparaton thereof
US10738225B2 (en) * 2014-04-02 2020-08-11 Tesa Se Method for joining two webs together with an adhesive tape

Also Published As

Publication number Publication date
DE1504523A1 (en) 1969-05-08

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