The invention discloses a high performance plastic magnetic material, comprising a low surface energy layer, a magnetic layer and a printable layer, wherein the magnetic layer and the printable layer are arranged successively on a first side of the low surface energy layer; the low surface energy layer is an organic silicon pressure sensitive adhesive layer. The invention further discloses a preparation method, comprising the following steps: pretreating a magnetic powder with a coupling agent; mixing the pretreated magnetic powder with matrix components and auxiliaries to gain a mixture; extrusion compositing the gained mixture with a printable layer to gain composite paper having the printable layer and a magnetic layer; and applying a low surface energy layer on a side of the magnetic layer, opposite the printable layer. As no UV layer and no adhesive residue, the material of the invention is environmentally friendly and highly reliable.

The invention discloses a high performance plastic magnetic material, comprising a low surface energy layer, a magnetic layer and a printable layer, wherein the magnetic layer and the printable layer are arranged successively on a first side of the low surface energy layer; the low surface energy layer is an organic silicon pressure sensitive adhesive layer. The invention further discloses a preparation method, comprising the following steps: pretreating a magnetic powder with a coupling agent; mixing the pretreated magnetic powder with matrix components and auxiliaries to gain a mixture; extrusion compositing the gained mixture with a printable layer to gain composite paper having the printable layer and a magnetic layer; and applying a low surface energy layer on a side of the magnetic layer, opposite the printable layer. As no UV layer and no adhesive residue, the material of the invention is environmentally friendly and highly reliable.

Provided is an adhesive tape that has satisfactory conformability to a high step of an adherend while maintaining high impact resistance, and has removable performance that enables easy peeling when articles, such as electronic devices, are disassembled. The adhesive tape has an adhesive layer on one side or both sides of a foam base directly or with another layer interposed therebetween. The foam base has a tensile strength of 650 N/cm.sup.2 or more in a flow direction, a compressive strength at 25% of 1000 kPa or less, and a density of 0.35 g/cm.sup.3 to 0.90 g/cm.sup.3.

Provided is an adhesive tape that has satisfactory conformability to a high step of an adherend while maintaining high impact resistance, and has removable performance that enables easy peeling when articles, such as electronic devices, are disassembled. The adhesive tape has an adhesive layer on one side or both sides of a foam base directly or with another layer interposed therebetween. The foam base has a tensile strength of 650 N/cm.sup.2 or more in a flow direction, a compressive strength at 25% of 1000 kPa or less, and a density of 0.35 g/cm.sup.3 to 0.90 g/cm.sup.3.

A curable silicone-(meth)acrylate pressure sensitive composition is curable via hydrosilylation reaction to form a silicone-(meth)acrylate pressure sensitive adhesive with an initial adhesion. When the silicone-(meth)acrylate pressure sensitive adhesive is exposed to actinic radiation, the resulting silicone-(meth)acrylate adhesive has a subsequent adhesion, which is higher than the initial adhesion.

A curable silicone-(meth)acrylate pressure sensitive composition is curable via hydrosilylation reaction to form a silicone-(meth)acrylate pressure sensitive adhesive with an initial adhesion. When the silicone-(meth)acrylate pressure sensitive adhesive is exposed to actinic radiation, the resulting silicone-(meth)acrylate adhesive has a subsequent adhesion, which is higher than the initial adhesion.

An adhesive sheet comprising a base material, a primer layer, and an adhesive layer cured by radiation, arranged in this order. The primer layer comprises a (meth)acrylic polymer having a nitrogen-containing group and a polymer having a polyoxyalkylene group.

An adhesive sheet comprising a base material, a primer layer, and an adhesive layer cured by radiation, arranged in this order. The primer layer comprises a (meth)acrylic polymer having a nitrogen-containing group and a polymer having a polyoxyalkylene group.

The invention described herein generally pertains to a composition that includes a silyl-terminated polymer having silyl groups linked to a polymer backbone via triazole. The silyl-terminated polymer is a reaction product of a functionalized polymer backbone and a functionalized silane. The polymer backbone includes a first functional group, which may be one of an azide or an alkyne. The functionalized silane includes a second functional group may also be one of an azide or an alkyne, but is also different from the first functional group. The functionalized polymer backbone is reacted with the functionalized silane in the presence of a metal catalyst.

The invention described herein generally pertains to a composition that includes a silyl-terminated polymer having silyl groups linked to a polymer backbone via triazole. The silyl-terminated polymer is a reaction product of a functionalized polymer backbone and a functionalized silane. The polymer backbone includes a first functional group, which may be one of an azide or an alkyne. The functionalized silane includes a second functional group may also be one of an azide or an alkyne, but is also different from the first functional group. The functionalized polymer backbone is reacted with the functionalized silane in the presence of a metal catalyst.