• 专利标题:   Double-sided tape comprises e.g. release paper, sea-island type nylon film layer, first graphene printed layer, second graphene printed layer, graphene heat-generating film strip, copper strip, and first pressure-sensitive adhesive layer.
  • 专利号:   CN110105892-A
  • 发明人:   SUN X
  • 专利权人:   PINGHU BOCHUN ADHESIVE TECHNOLOGY CO LTD
  • 国际专利分类:   C08F220/14, C08F220/18, C08F220/20, C08F220/56, C08J009/10, C08L023/08, C09J011/08, C09J133/08, C09J007/29, C09J007/38
  • 专利详细信息:   CN110105892-A 09 Aug 2019 C09J-007/29 201972 Pages: 21 Chinese
  • 申请详细信息:   CN110105892-A CN10399000 14 May 2019
  • 优先权号:   CN10399000

▎ 摘  要

NOVELTY - Double-sided tape comprises a release paper arranged in order from bottom to top, the upper and lower sides of a sea-island type nylon film layer are respectively printed with a first graphene printed layer and a second graphene printed layer. The first graphene printed layer and the second graphene printed layer each having multiple spaced graphene heating film strips. The extending direction of the graphene heat-generating film strip forms a certain angle with the extending direction of the double-sided tape on the surface of the graphene heat-generating film strip, and the two sides of the double-sided tape extending direction are respectively plated with a same copper strip film strip, all the graphene heating film strips are connected in parallel by the copper strip, and a parallel circuit is formed after being energized. A part of the first pressure-sensitive adhesive layer is impregnated into the first ethylene-vinyl acetate (EVA) rubber foam layer. USE - Used as double-sided tape. ADVANTAGE - The double-sided tape has electrical loss of viscosity, uniformity in adhesive, strong adhesion, large peeling force, high peel strength, and high tensile strength. DETAILED DESCRIPTION - Double-sided tape comprises a release paper arranged in order from bottom to top, the upper and lower sides of a sea-island type nylon film layer are respectively printed with a first graphene printed layer and a second graphene printed layer. The first graphene printed layer and the second graphene printed layer each having multiple spaced graphene heating film strips. The extending direction of the graphene heat-generating film strip forms a certain angle with the extending direction of the double-sided tape on the surface of the graphene heat-generating film strip, and the two sides of the double-sided tape extending direction are respectively plated with a same copper strip film strip, all the graphene heating film strips are connected in parallel by the copper strip, and a parallel circuit is formed after being energized. A part of the first pressure-sensitive adhesive layer is impregnated into the first ethylene-vinyl acetate (EVA) rubber foam layer. A portion of the second pressure-sensitive adhesive layer is impregnated into the second EVA rubber-plastic foam layer. The component of sea-island type nylon film layer is nylon resin, and the component is easily hydrolyzable polyester resin, where the amount of sea-island type nylon film layer is 65-70%, and the remaining amount of sea component. An INDEPENDENT CLAIM is also included for preparing double-sided tape comprising (a) forming the first graphene printed layer and a second graphene printed layer on the upper and lower surfaces of the island-type nylon film layer, and then on the surface of the graphene heat-generating film strip, locating at both sides of the direction in which the double-sided tape extends, performing copper plating to forming a copper-plated film strip , connecting the all of the graphene heat-generating film strips are in parallel by the copper-plated film strip, forming a parallel circuit after power-on to form a printed film, (b) soaking the printing film in liquid reduction, performing reduction treatment, and washing away part of the surface of the easily hydrolyzable polyester resin, (c) coating the EVA rubber foaming slurry on the upper surface of the printed film after the reduction treatment, performing foaming to form a first EVA rubber foam layer, coating the EVA rubber foaming slurry on the lower surface of the printed film after the reduction treatment, performing foaming to form a second EVA rubber foam layer, and (d) uniformly mixing the pressure sensitive adhesive with the room temperature blocked isocyanate in a mass ratio of 100:3.6-5.5, coating on the first EVA rubber foam layer, drying, forming a first pressure sensitive adhesive layer, applying a pressure sensitive adhesive to the second EVA rubber foam layer, drying, forming second pressure sensitive adhesive layer , coating surface of the first pressure-sensitive adhesive layer with a release paper at 55-65 degrees C, and aging for 36-56 hours.