JP2013177630A5 - - Google Patents

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JP2013177630A5
JP2013177630A5 JP2013120263A JP2013120263A JP2013177630A5 JP 2013177630 A5 JP2013177630 A5 JP 2013177630A5 JP 2013120263 A JP2013120263 A JP 2013120263A JP 2013120263 A JP2013120263 A JP 2013120263A JP 2013177630 A5 JP2013177630 A5 JP 2013177630A5
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Japan
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sheet
average cell
cell diameter
extrusion direction
cross
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JP2013120263A
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Japanese (ja)
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JP2013177630A (en
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Priority to JP2013120263A priority Critical patent/JP2013177630A/en
Priority claimed from JP2013120263A external-priority patent/JP2013177630A/en
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Description

本発明は、柔軟で機械的強度に優れ、粘着テープ基材として好適に使用される架橋ポリオレフィン系樹脂発泡シートの製造方法に関する。 The present invention relates to a method for producing a crosslinked polyolefin-based resin foam sheet that is flexible and excellent in mechanical strength and that is suitably used as an adhesive tape substrate.

本発明の目的は、優れた柔軟性及び圧縮回復性を有すると共に、少なくともシート押出方向において優れた引張強さを有し、粘着テープ基材として好適に使用することができる架橋ポリオレフィン系樹脂発泡シートの製造方法を提供することにある。 An object of the present invention is to provide a crosslinked polyolefin resin foam sheet that has excellent flexibility and compression recovery property, and at least excellent tensile strength in the sheet extrusion direction, and can be suitably used as an adhesive tape substrate. It is in providing the manufacturing method of.

本発明の架橋ポリオレフィン系樹脂発泡シートの製造方法は、重合触媒として四価の遷移金属を含むメタロセン化合物を用いて得られたポリエチレン系樹脂を４０重量％以上含有するポリオレフィン系樹脂及び熱分解型発泡剤からなる発泡性樹脂組成物を押出機に供給して溶融混練し押出機から押出して得られた発泡性樹脂シートを架橋させた後に、発泡させながら延伸させることにより、架橋度が５〜６０重量％であり、且つ、シート押出方向の平均気泡径とシート厚さ方向の平均気泡径との比（シート押出方向の平均気泡径／シート厚さ方向の平均気泡径）が２．５〜７であると共に、シート押出方向の平均気泡径とシート幅方向の平均気泡径との比（シート押出方向の平均気泡径／シート幅方向の平均気泡径）が２〜６であるである架橋ポリオレフィン系樹脂発泡シートを製造することを特徴とする。 The method for producing a crosslinked polyolefin resin foamed sheet according to the present invention comprises a polyolefin resin containing 40% by weight or more of a polyethylene resin obtained by using a metallocene compound containing a tetravalent transition metal as a polymerization catalyst, and a pyrolytic foam. After the foamable resin sheet obtained by supplying a foamable resin composition comprising an agent to an extruder, melt-kneading and extruding from the extruder is cross-linked and then stretched while foaming, the degree of cross-linking is 5-60. And the ratio of the average cell diameter in the sheet extrusion direction to the average cell size in the sheet thickness direction (average cell diameter in the sheet extrusion direction / average cell diameter in the sheet thickness direction) is 2.5 to 7 with it, call the ratio of the average cell size of the average cell diameter and the sheet width direction of the sheet extrusion direction (average cell diameter of the average cell diameter / sheet width direction of the sheet extrusion direction) is located at 2-6 Characterized by producing the polyolefin-based resin foam sheet.

上記シート押出方向（ＭＤ）への延伸は、発泡性樹脂シートを発泡させながら行う。 Stretching in the the sheet extrusion direction (MD) is performed while foaming the foamed resin sheet.

Claims (1)

重合触媒として四価の遷移金属を含むメタロセン化合物を用いて得られたポリエチレン系樹脂を４０重量％以上含有するポリオレフィン系樹脂及び熱分解型発泡剤からなる発泡性樹脂組成物を押出機に供給して溶融混練し押出機から押出して得られた発泡性樹脂シートを架橋させた後に、発泡させながら延伸させることにより、架橋度が５〜６０重量％であり、且つ、シート押出方向の平均気泡径とシート厚さ方向の平均気泡径との比（シート押出方向の平均気泡径／シート厚さ方向の平均気泡径）が２．５〜７であると共に、シート押出方向の平均気泡径とシート幅方向の平均気泡径との比（シート押出方向の平均気泡径／シート幅方向の平均気泡径）が２〜６である架橋ポリオレフィン系樹脂発泡シートを製造することを特徴とする架橋ポリエチレン系樹脂発泡シートの製造方法。 A foamable resin composition comprising a polyolefin resin containing 40% by weight or more of a polyethylene resin obtained using a metallocene compound containing a tetravalent transition metal as a polymerization catalyst and a thermally decomposable foaming agent is supplied to an extruder. Then, after the foamable resin sheet obtained by melt kneading and extruding from an extruder is cross-linked, it is stretched while being foamed, so that the degree of cross-linking is 5 to 60% by weight and the average cell diameter in the sheet extrusion direction And the ratio of the average cell diameter in the sheet thickness direction (average cell diameter in the sheet extrusion direction / average cell diameter in the sheet thickness direction) is 2.5 to 7, and the average cell diameter in the sheet extrusion direction and the sheet width crosslinking, characterized in that the ratio of the average cell diameter direction (average cell diameter of the average cell diameter / sheet width direction of the sheet extrusion direction) to produce a 2-6 der Ru cross-linking a polyolefin resin foam sheet Riechiren based resin foam sheet manufacturing method of.
JP2013120263A 2003-04-11 2013-06-06 Crosslinked polyolefin-based resin foamed sheet and adhesive tape Pending JP2013177630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013120263A JP2013177630A (en) 2003-04-11 2013-06-06 Crosslinked polyolefin-based resin foamed sheet and adhesive tape

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003108164 2003-04-11
JP2003108164 2003-04-11
JP2013120263A JP2013177630A (en) 2003-04-11 2013-06-06 Crosslinked polyolefin-based resin foamed sheet and adhesive tape

Related Parent Applications (1)

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JP2010113151A Division JP5374440B2 (en) 2003-04-11 2010-05-17 Cross-linked polyolefin resin foam sheet and adhesive tape

Publications (2)

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JP2013177630A JP2013177630A (en) 2013-09-09
JP2013177630A5 true JP2013177630A5 (en) 2013-10-17

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JP2010113151A Expired - Lifetime JP5374440B2 (en) 2003-04-11 2010-05-17 Cross-linked polyolefin resin foam sheet and adhesive tape
JP2013120263A Pending JP2013177630A (en) 2003-04-11 2013-06-06 Crosslinked polyolefin-based resin foamed sheet and adhesive tape

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JP2010113151A Expired - Lifetime JP5374440B2 (en) 2003-04-11 2010-05-17 Cross-linked polyolefin resin foam sheet and adhesive tape

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6302289B2 (en) * 2013-09-30 2018-03-28 積水化学工業株式会社 Porous sheet and method for producing the same
WO2015046526A1 (en) 2013-09-30 2015-04-02 積水化学工業株式会社 Crosslinked polyolefin resin foam sheet
JP6224404B2 (en) * 2013-10-07 2017-11-01 株式会社ジェイエスピー Polyethylene resin foam sheet
WO2015146982A1 (en) 2014-03-28 2015-10-01 積水化学工業株式会社 Adhesive tape and method for producing adhesive tape
WO2016093110A1 (en) * 2014-12-08 2016-06-16 Dic株式会社 Adhesive sheet and electronic device
CN113454149B (en) * 2019-03-26 2022-09-06 东丽株式会社 Polyolefin resin foam sheet and method for producing same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03169622A (en) * 1989-11-30 1991-07-23 Sekisui Chem Co Ltd Production of open cell foam of olefin-based resin
JP2914839B2 (en) * 1993-02-09 1999-07-05 積水化学工業株式会社 Laminated composite
JPH09157601A (en) * 1995-12-11 1997-06-17 Sekisui Chem Co Ltd Base material for tacky adhesive type
JPH1045934A (en) * 1996-08-02 1998-02-17 Tosoh Corp Case for containing portable precision equipment
JPH1192583A (en) * 1997-09-24 1999-04-06 Jsp Corp String-, thread or tape-form object having high cushioning property and biodegradability and sheet-form object comprising this
JP2002317065A (en) * 2001-04-18 2002-10-31 Chisso Corp Foam extrusion molded product

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