Lintec Corporation

Tatsuya Tsukida

Tetsuyuki Utagawa

Yoshitomo Ono

Satoshi Kawada

Makoto Inoue

Kouji Tabata

Hiroaki Iwabuchi

Kiyoshi Ishiba

There is disclosed an overlaminating adhesive film comprising a transparent film, an adhesive layer and a release material successively laminated in this order, wherein said release material has a surface contacting with the adhesive layer, said surface having a centerline average surface roughness of 0.5 &#x3bc;m or lower; an adhesive forming said adhesive layer has a pH of 7.2 to 8.5 in a solution state before applied, and is an acrylic emulsion-type adhesive having an average particle size of 200 nm or smaller; and a monomer component used for production of said adhesive includes an alkoxysilane group-containing unsaturated monomer in which each alkoxy group has 1 to 4 carbon atoms, but includes no hydroxy-containing unsaturated monomer. The overlaminating adhesive film of the present invention exhibits a good water resistance and is free from deterioration in its transparency due to lifting or bubbles when laminated on an adherend.

Pressure sensitive adhesive film overlamination

A pressure-sensitive adhesive sheet for a tire that can be favorably attached to tires at low temperature and to tires such as studless tires is provided, as is a method for manufacturing the pressure-sensitive adhesive sheet for a tire. For the pressure-sensitive adhesive sheet for a tire and the method for manufacturing, the pressure-sensitive adhesive sheet for a tire includes a substrate and an adhesive layer, and the adhesive layer includes a hot melt-type adhesive composition and satisfies adhesive characteristics (A) and (B), where (A) loop tack adhesion at 5&#xb0; C. is 14N/25 mm or more, and (B) loop tack adhesion at 40&#xb0; C. is 5N/25 mm or more.

Pressure-sensitive adhesive sheet for tire and method for manufacturing the same

A method for using a rewritable thermal label of the non-contact type which comprises recording and erasing information repeatedly in accordance with a non-contact method on a rewitable thermal label which remains attached to an adherend. The label contains (a) an anchor coat layer comprising a crosslinked resin, (b) a heat-sensitive color development layer, (c) a light absorption and a photo-thermal conversion layer and (d) an adhesive layer. The layers (a), (b), (c) and (d) are laminated on a first face of a substrate successively. The anchor coat layer is placed next to the substrate. The layer (c) is an outermost layer. The adhesive layer is placed on a second face of the substrate.

Method for using a rewritable thermal label

A method for recording and erasure of images using a rewritable thermal label of the non-contact type which enables complete elimination of residual images after the erasure and repeated rewriting. The absorptivity of laser light used for the recording with the surface of the label is 50% or greater, the laser light irradiating the surface of the label for the recording has a wavelength of 700 to 1,500 nm and an amount of energy of irradiation of 5.0 to 15.0 mJ/mm, the product of the amount of energy of irradiation of the laser light and the absorptivity of the laser light during the recording is 3.0 to 14.0 mJ/mm, and the product of the amount of energy of irradiation of the laser light and the absorptivity of the laser light with the surface of the label during the erasure is 1.1 to 3.0 times as great as the corresponding product during the recording.

Method for recording and erasure of images using a rewritable thermal label of a non-contact type

A rewritable thermal label of the non-contact type which comprises an anchor coat layer comprising a crosslinked resin, a heat-sensitive color development layer and a light absorption and photo-thermal conversion layer which are laminated on one face of a substrate successively, the anchor coat layer being placed next to the substrate, and an adhesive layer placed on the other face of the substrate and allows recording and erasure of information repeatedly in accordance with the non-contact method; and a method for using a rewritable thermal label of the non-contact type which comprises recording and erasing information repeatedly in accordance with the non-contact method on the rewritable thermal label which remains attached to an adherend. Information can be recorded and erased repeatedly on the label which remains attached to the adherend and the label can be recycled together with the adherend.

Rewritable thermal label of a non-contact type and method for using the label

Provided is an adhesive sheet for a precision electronic member which generates less amount of gas under high temperature atmosphere and which is suited as a low polluting adhesive sheet for a precision electronic member. The adhesive sheet for a precision electronic member has an adhesive layer comprising an acrylic copolymer obtained by copolymerizing a monomer mixture which comprises alkyl (meth)acrylate having 4 or less carbon atoms in an alkyl group and vinyl acetate in a proportion of 50:50 to 99.5:0.5 in terms of a weight ratio and in which a total content thereof is 80% by weight or more, wherein an amount of gas generated in heating at a temperature of 120&deg; C. for 10 minutes is 1.0 &mgr;g/cm or less in terms of a n-decane amount.

Growing community of inventors

Saitama, Japan

Tatsuya Tsukida