GB887950A - Polyolefine film backings for pressure-sensitive adhesive tape - Google Patents
Polyolefine film backings for pressure-sensitive adhesive tapeInfo
- Publication number
- GB887950A GB887950A GB2638259A GB2638259A GB887950A GB 887950 A GB887950 A GB 887950A GB 2638259 A GB2638259 A GB 2638259A GB 2638259 A GB2638259 A GB 2638259A GB 887950 A GB887950 A GB 887950A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- linking
- transverse
- cross
- pressure
- 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
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title 1
- 229920000098 polyolefin Polymers 0.000 title 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- 238000004132 cross linking Methods 0.000 abstract 3
- -1 Polyethylene Polymers 0.000 abstract 2
- 239000012190 activator Substances 0.000 abstract 2
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 abstract 1
- 239000012965 benzophenone Substances 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/04—After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation, e.g. for curing or vulcanising preformed articles
-
- 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
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/008—Wide strips, e.g. films, webs
Landscapes
- Adhesive Tapes (AREA)
Abstract
Polyethylene and polypropylene films are irradiated with ultra-violet light to an extent sufficient to reduce both the transverse and longitudinal elongations. The irradiation effects cross-linking of the polymer molecules of the film. The film may be pre-orientated, preferably longitudinally, so that the transverse elongation, before cross-linking, exceeds, and is preferably at least twice, the longitudinal elongation. Cross-linking may be effected in the presence of an activator sensitive to the ultra-violet radiation, e.g. a ketone, and the film may be impregnated with a solution of the activator (e.g. benzophenone in toluene) and dried prior to irradiation. Coloured films may be similarly treated. The treatment improves the tear properties of the film, especially ease and regularity of transverse tearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2638259A GB887950A (en) | 1959-07-31 | 1959-07-31 | Polyolefine film backings for pressure-sensitive adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2638259A GB887950A (en) | 1959-07-31 | 1959-07-31 | Polyolefine film backings for pressure-sensitive adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB887950A true GB887950A (en) | 1962-01-24 |
Family
ID=10242771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2638259A Expired GB887950A (en) | 1959-07-31 | 1959-07-31 | Polyolefine film backings for pressure-sensitive adhesive tape |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB887950A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2440286A1 (en) * | 1973-08-27 | 1975-03-06 | Nitto Electric Ind Co | PRESSURE SENSITIVE ADHESIVE TAPE |
-
1959
- 1959-07-31 GB GB2638259A patent/GB887950A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2440286A1 (en) * | 1973-08-27 | 1975-03-06 | Nitto Electric Ind Co | PRESSURE SENSITIVE ADHESIVE TAPE |
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