GB887950A - Polyolefine film backings for pressure-sensitive adhesive tape - Google Patents

Polyolefine film backings for pressure-sensitive adhesive tape

Info

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
Application number
GB2638259A
Inventor
Derek Wilfred Aubrey
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.)
Adhesive Tapes Ltd
Original Assignee
Adhesive Tapes Ltd
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 Adhesive Tapes Ltd filed Critical Adhesive Tapes Ltd
Priority to GB2638259A priority Critical patent/GB887950A/en
Publication of GB887950A publication Critical patent/GB887950A/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
    • 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.
GB2638259A 1959-07-31 1959-07-31 Polyolefine film backings for pressure-sensitive adhesive tape Expired GB887950A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2440286A1 (en) * 1973-08-27 1975-03-06 Nitto Electric Ind Co PRESSURE SENSITIVE ADHESIVE TAPE

Cited By (1)

* Cited by examiner, † Cited by third party
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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