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US 2011/0214735 A1Published application
Conductive laminated assembly
Assignee3M Innovative Properities Company
InventorsDavid V. Mahoney, Mitchell T. Huang, Richard D. Twigg
Life of this patent
Estimating the term…
Abstract
Provided are conductive laminated assemblies and conductive assembly tapes that are used thereon. The conductive laminated assemblies include a conductive foil, a pressure sensitive adhesive, a conductive element as a part of the foil or in the pressure sensitive adhesive and a conductive substrate. The conductive substrate can be a photovoltaic or solar cell.
Claims22
An article comprising:
- a conductive foil having a first major surface;
- a pressure sensitive adhesive layer in contact with at least a portion of the first major surface of the conductive foil;
- a conductive element comprising a plurality of protrusions in the conductive foil that extend from the first major surface of the conductive foil into the pressure sensitive adhesive layer;
- and
- a conductive substrate in contact with the pressure sensitive adhesive layer,
- wherein the conductive substrate makes electrical contact with at least a portion of the plurality of protrusions, and
- wherein the arrangement of the protrusions does not create any substantially enclosed areas.
4 more elements
An article comprising:
- a conductive foil having a first major surface;
- a pressure sensitive adhesive layer in contact with at least a portion of the first major surface of the conductive foil;
- a conductive element comprising conductive particles disposed in the pressure sensitive adhesive layer and that are in electrical contact with the first major surface of the conductive foil;
- and
- a conductive substrate in contact with the pressure sensitive adhesive layer, wherein the conductive substrate makes electrical contact with at least a portion of the conductive particles,
- wherein the pressure sensitive adhesive comprises the reaction product of acrylic monomers having a boiling point of greater than 140° C., and wherein the pressure sensitive adhesive has a stress relaxation modulus of greater than about 3×104 dynes/cm2 after 100 seconds measured at 100° C.
3 more elements
An article comprising:
- a conductive foil having a first major surface and a second major surface;
- a first pressure sensitive adhesive layer in contact with at least a portion of the first major surface of the conductive foil;
- a first conductive element comprising at least one of:
- (i) a plurality of protrusions in the conductive foil that extend from the first major surface of the conductive foil into the first pressure sensitive adhesive layer;
- or
- (ii) conductive particles disposed in the first pressure sensitive adhesive layer and that are in electrical contact with the first major surface of the conductive foil;
- a second pressure sensitive adhesive layer in contact with at least a portion of the second major surface of the conductive foil;
- a second conductive element comprising at least one of:
- (a) a plurality of protrusions in the conductive foil that extend from the second major surface of the conductive foil into the second pressure sensitive adhesive layer;
- or
- (b) conductive particles disposed in the second pressure sensitive adhesive layer and that are in electrical contact with the second major surface of the conductive foil;
- a first conductive substrate in contact with the first pressure sensitive adhesive layer, wherein the first conductive substrate makes electrical contact with at least a portion of the plurality of protrusions extending from the first major surface of the conductive foil into the first pressure sensitive adhesive layer, the conductive particles disposed in the first pressure sensitive adhesive layer, or both;
- and
- a second conductive substrate in contact with the second pressure sensitive adhesive layer,
- wherein the second conductive substrate makes electrical contact with at least a portion of the plurality of protrusions extending from the second major surface of the conductive foil into the second pressure sensitive adhesive layer, the conductive particles disposed in the second pressure sensitive adhesive layer, or both,
- wherein the arrangement of the plurality of protrusions, if present, does not create any substantially enclosed area, and
- wherein, if conductive particles are present, the first pressure sensitive adhesive and the second pressure sensitive adhesive each comprise the reaction product of acrylic monomers having a boiling point of greater than 140° C., and wherein the pressure sensitive adhesives each have a stress relaxation modulus of greater than about 3×104 dynes/cm2 after 100 seconds measured at 100° C.
14 more elements
A method of making an article comprising:
- providing a conductive foil having a first major surface and, optionally, a plurality of protrusions in the conductive foil that extend from the first major surface of the conductive foil;
- applying a pressure sensitive adhesive layer to the conductive foil wherein the pressure sensitive adhesive, optionally, has conductive particles disposed therein;
- laminating a conductive substrate to the pressure sensitive adhesive layer to form a laminated assembly;
- and
- applying pressure to the laminated assembly so as to provide electrical contact between the conductive foil and the conductive substrate,
- wherein the arrangement of the plurality of protrusions, if present, does not create any substantially enclosed area, and
- wherein, if conductive particles are present, the first pressure sensitive adhesive and the second pressure sensitive adhesive each comprise the reaction product of acrylic monomers having a boiling point of greater than 140° C., and wherein the pressure sensitive adhesives each have a stress relaxation modulus of greater than about 3×104 dynes/cm2 after 100 seconds measured at 100° C.
4 more elements
Dependencies are inferred from the claim text.