Nichiban Company Limited

Ge Medical Systems Global Technology Company, LLC

Kazuhiro Kono

Syuji Ichimura

Yoshinaga Tsuzuki

Mikihiro Endo

Kinnosuke Hino

The pressure-sensitive adhesive sheet for surface protection has a three-layered film formed by laminating a layer A, a layer B and a layer C in this order and a pressure-sensitive adhesive layer formed on the layer C; wherein the layer A contains a polyethylene in an amount of at least 60% by weight based on a total weight of the layer A; the layer B contains a polypropylene type polymer in an amount of at least 50% by weight of based on a total weight of the layer B; and the layer C contains a hydrogenated styrene/diene type hydrocarbon copolymer in an amount of at least 10% by weight based on the total weight of the layer C. This sheet has excellent weathering resistance to undergo neither chalking nor fracture in the substrate at peeling, even after a prolonged outdoor exposure, develops less corona odor to enable extended operation of applying it, and can be manufactured inexpensively with reduced manufacturing process, since no anchor coat treating procedure is required.

Surface-protective pressure-sensitive adhesive sheet

In order to allow easy estimation of the operating condition of a magnet by a technician of any skill level, and to allow accurate prediction of a potential failure beforehand, a data processing section is provided for resolving pressure data for a cooling helium gas, level (remaining amount) data for a liquid helium, first temperature data for a first stage of a refrigerator, second temperature data for a second stage of the refrigerator, and third temperature (room temperature) data for an equipment room in which a compressor is placed, as prespecified parameters, into a plurality of elements, using the elements as magnet data, calculating the Mahalanobis distance D of the normalized magnet data, and comparing the calculated Mahalanobis distance D with data stored in a database obtained by developing magnet data in a normal condition into a Mahalanobis reference space to estimate the operating condition.

Failure prediction apparatus for superconductive magnet and magnetic resonance imaging system

The present invention is to provide a pressure-sensitive adhesive sheet for surface protection, which has a substrate containing an ethylene/propylene copolymer and an ethylene/1-butene copolymer in a weight ratio of 60:40 to 90:10, and an adhesive composition for pressure-sensitive adhesive sheets for surface protection, which contains 5 to 30 parts by weight of a rosin resin tackifier based on 100 parts by weight of a blend comprising 50 to 100% by weight of a polyisobutylene and/or a butyl rubber and 50 to 0% by weight of a polybutene.

Surface-protective pressure-sensitive adhesive sheet and pressure-sensitive adhesive composition for surface-protective pressure-sensitive adhesive sheet

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Tokyo, Japan

Kazuhiro Kono