Polyolefin film

A polyolefin, film-based technology, applied in the direction of hydrocarbon copolymer adhesives, film/sheet-like adhesives, adhesive types, etc., can solve the problem of difficult to cause film elongation or deformation, achieve inhibition The effect of excellent adhesion, processability, and good film-forming properties
CN103906818BInactive Publication Date: 2016-01-13TOYOBO CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TOYOBO CO LTD
Publication Date
2016-01-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention addresses the problem of obtaining a self-adhesive surface-protecting film that is highly processing-friendly, and despite adhering to the protected object strongly and being usable on a variety of objects, is not prone to problems such as localized stretching or deformation when unrolled from being stored rolled up. The present invention relates to a polyolefin film characterized by comprising an adhesive layer laminated to one surface of a polypropylene-resin base layer and a release layer laminated to the opposite surface via co-extrusion. This polyolefin film is further characterized in that: the resins constituting the adhesive layer include, at least, a styrene elastomer (consisting primarily of: a block copolymer consisting of styrene-polymer blocks and olefin-polymer blocks; a block copolymer consisting of styrene-polymer blocks and styrene / olefin random-copolymer blocks; and / or hydrogenated versions thereof) and a polyolefin resin; said polyolefin resin constitutes 5-25% of the total weight of the resin components constituting the adhesive layer; the resins constituting the release layer include, at least, a polypropylene resin and a C4+ alpha-olefin (co)polymer; and said C4+ alpha-olefin (co)polymer constitutes at least 5% but less than 25% of the total weight of the resin components constituting the release layer.
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Description

technical field

[0001] The present invention relates to a polyolefin-based film. The polyolefin-based film of the present invention can be used for components such as prism sheets used in optical applications, synthetic resin plates (for example, for building materials), stainless steel plates (for example, for building materials), aluminum plates, decorative plywood, steel plates, glass plates, Home appliances, precision machinery, etc. In addition, the above-mentioned polyolefin-based film can be suitably used for protecting the surface of an automobile body during manufacture, for protecting articles from damage during stacking, storage, transportation, or handling during the manufacturing process, and for protecting articles in the second place. Protects against damage during secondary operations such as bending or pressing. Background technique

[0002] Adhesive films for the purpose of protecting the surface of the covered body have been used in the processing, stora...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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