JPH11269315A - Polyolefin film or sheet processable by high-frequency welder - Google Patents

Polyolefin film or sheet processable by high-frequency welder

Info

Publication number
JPH11269315A
JPH11269315A JP10077390A JP7739098A JPH11269315A JP H11269315 A JPH11269315 A JP H11269315A JP 10077390 A JP10077390 A JP 10077390A JP 7739098 A JP7739098 A JP 7739098A JP H11269315 A JPH11269315 A JP H11269315A
Authority
JP
Japan
Prior art keywords
vinyl acetate
sheet
polyolefin
ethylene
processable
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.)
Withdrawn
Application number
JP10077390A
Other languages
Japanese (ja)
Inventor
Chiaki Tashiro
千秋 田代
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.)
TAKAFUJI KASEI KK
Original Assignee
TAKAFUJI KASEI KK
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 TAKAFUJI KASEI KK filed Critical TAKAFUJI KASEI KK
Priority to JP10077390A priority Critical patent/JPH11269315A/en
Publication of JPH11269315A publication Critical patent/JPH11269315A/en
Withdrawn legal-status Critical Current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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain the subject film or sheet bondable in the whole face when subjected to high-frequency welder processing, causing material failure when stretched, capable of being subjected to welder processing sealing by adding a specific amount of an ethylene-vinyl acetate copolymer to a polyolefin blend. SOLUTION: This film or sheet processable by a high-frequency welder comprises (A) a polyolefin (to be concrete, a low-density to high-density polyethylene and polypropylene) and (B) an ethylene-vinyl acetate copolymer [preferably one having 20-40 wt.% vinyl acetate content] and is obtained by molding a polyolefin blend so that the amount of the component B is an amount to make 5-20 vinyl acetate content in the blend.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は高周波ウエルダー加
工が可能なポリエチレン・ポリプロピレン等のポリオレ
フィンフイルム又はシートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyolefin film or sheet such as polyethylene or polypropylene which can be subjected to high frequency welding.

【０００２】一般にポリエチレン、ポリプロピレン等は
高周波ウエルダー加工が不可能なであった。In general, high-frequency welding has not been possible with polyethylene, polypropylene and the like.

【０００３】[0003]

【課題を解決するための手段】本発明者は、エチレン−
酢酸ビニルコポリマーをポリオレフィンに加えるとポリ
オレフィンフイルム又はシートは高周波ウエルダー可能
であることを発見して本発明に至った。Means for Solving the Problems The present inventors have developed ethylene-
The inventors have found that the addition of a vinyl acetate copolymer to a polyolefin allows the polyolefin film or sheet to be high frequency weldable.

【０００４】すなわち本発明は、配合物中の酢酸ビニル
含有量が５〜２０％なるようにエチレン−酢酸ビニルコ
ポリマーを添加したことを特徴とする高周波ウエルダー
加工が可能なポリオレフィンフイルム又はシートに関す
る。[0004] That is, the present invention relates to a polyolefin film or sheet capable of high-frequency welding, wherein an ethylene-vinyl acetate copolymer is added so that the vinyl acetate content in the composition is 5 to 20%.

【０００５】上記の配合物とはエチレン−酢酸ビニルコ
ポリマーを加えたポリオレフィン配合物を意味する。酢
酸ビニル含有量が少ないエチレン−酢酸ビニルコポリマ
ーを使用する場合、そのコポリマーのポリオレフィンへ
の添加量を多くして、配合物中の酢酸ビニル含量を５〜
２０％となるようにする。又酢酸ビニル含量の多いエチ
レン−酢酸ビニルコポリマーを使用する時は、そのコポ
リマーのポリオレフィンへの添加量を少なくする一般に
酢酸ビニル含量２０〜４０％のエチレン−酢酸ビニルコ
ポリマーが好ましく、そのコポリマーのポリオレフィン
への含有量は１５〜４５％である。[0005] The above-mentioned composition means a polyolefin composition to which an ethylene-vinyl acetate copolymer is added. When using an ethylene-vinyl acetate copolymer having a low vinyl acetate content, the amount of the copolymer added to the polyolefin is increased to increase the vinyl acetate content in the formulation to 5 to 5.
It should be 20%. When an ethylene-vinyl acetate copolymer having a high vinyl acetate content is used, an ethylene-vinyl acetate copolymer having a vinyl acetate content of 20 to 40% is generally preferred to reduce the amount of the copolymer added to the polyolefin. Is 15 to 45%.

【０００６】配合物中の酢酸ビニル含量が５〜２０％以
外では得られたポリオレフィンは完全に高周波ウエルダ
ー加工できない。[0006] If the vinyl acetate content of the formulation is other than 5 to 20%, the resulting polyolefin cannot be completely high frequency welded.

【０００７】ポリオレフィンとは低密度乃至高密度ポリ
エチレン及びポリプロピレンである。[0007] Polyolefins are low density to high density polyethylene and polypropylene.

【０００８】[0008]

【実施例】試験方法 試験Ｎｏ１〜Ｎｏ７の配合内容でシートの厚みが０．１
５ｍ／ｍの試験片を作成し二枚重ねで高周波ウエルダー
加工を行ない溶着状態を比較した、その結果を表１に示
す。EXAMPLES Test method The thickness of the sheet was 0.1 with the content of Test Nos.
A test piece of 5 m / m was prepared, high frequency welding was performed on two test pieces, and the welded state was compared. The results are shown in Table 1.

【０００９】[0009]

【表１】 [Table 1]

【００１０】[0010]

【効果】配合物中の酢酸ビニル含有量が５〜２０％以内
でのエチレン−酢酸ビニルコポリマーを含むポリエチレ
ン・ポリプロピレンのフイルム又はシートを高周波ウエ
ルダー加工すると全面接着し、引張ると材料破壊を起
す。When a high-frequency welding process is applied to a polyethylene / polypropylene film or sheet containing an ethylene-vinyl acetate copolymer having a vinyl acetate content of 5 to 20% or less in the composition, the whole surface is adhered, and the material is broken when pulled.

【００１１】ウエルダー加工シールはヒートシールに比
べてシール部分の周囲が見栄えが悪くならないという利
点があるが、本発明に従えば、エチレン−酢酸ビニルコ
ポリマーを混入により、ポリオレフィンフイルムのウエ
ルダー加工シールが可能になり、その効果は顕著であ
る。Although the welded seal has the advantage that the appearance of the periphery of the seal portion does not deteriorate compared to the heat seal, according to the present invention, the welded seal of the polyolefin film can be obtained by mixing the ethylene-vinyl acetate copolymer. And the effect is remarkable.

フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０８Ｌ 31:04） Ｂ２９Ｋ 23:00 Continued on the front page (51) Int.Cl. 6 Identification code FI C08L 31:04) B29K 23:00

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 配合物中の酢酸ビニル含有量が５〜２０
％なるようにエチレン−酢酸ビニルコポリマーを添加し
たことを特徴とする高周波ウエルダー加工が可能なポリ
オレフィンフイルム又はシート。1. The composition according to claim 1, wherein the content of vinyl acetate is from 5 to 20.
% Of a polyolefin film or sheet which can be subjected to high frequency welding, wherein an ethylene-vinyl acetate copolymer is added to the film.
JP10077390A 1998-03-25 1998-03-25 Polyolefin film or sheet processable by high-frequency welder Withdrawn JPH11269315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10077390A JPH11269315A (en) 1998-03-25 1998-03-25 Polyolefin film or sheet processable by high-frequency welder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10077390A JPH11269315A (en) 1998-03-25 1998-03-25 Polyolefin film or sheet processable by high-frequency welder

Publications (1)

Publication Number Publication Date
JPH11269315A true JPH11269315A (en) 1999-10-05

Family

ID=13632575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10077390A Withdrawn JPH11269315A (en) 1998-03-25 1998-03-25 Polyolefin film or sheet processable by high-frequency welder

Country Status (1)

Country Link
JP (1) JPH11269315A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10843438B2 (en) 2005-10-24 2020-11-24 Ansell Microgard Limited Chemical barrier fabric

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10843438B2 (en) 2005-10-24 2020-11-24 Ansell Microgard Limited Chemical barrier fabric

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Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20050607