GB953330A - Improvements in polypropylene films - Google Patents
Improvements in polypropylene filmsInfo
- 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
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.
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)
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)
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 |
-
1960
- 1960-03-31 DE DE19601504523 patent/DE1504523A1/en active Pending
- 1960-04-01 GB GB1161360A patent/GB953330A/en not_active Expired
Cited By (5)
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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