Patent ID: 11877396
Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H  B | IPC C  H

Claim 11:
12. A method for producing a multilayer coreless substrate, comprising laminating the first resin composition layer or the second resin composition layer for the laminate according to claim 1 onto a conductor layer surface; wherein
the first resin composition layer is laminated onto the heat-resistant film layer by gravure coating using a first varnish comprising a first resin composition and a first solvent;
the second resin composition layer is laminated onto the heat-resistant film layer by gravure coating using a second varnish comprising a second resin composition a second solvent;
the first varnish and the second varnish are the same or different;
the amount of the first solvent in the first varnish is in the range of 40 to 400% by mass based on 100% by mass of the first varnish; and
the amount of the second solvent in the second varnish is in the range of 40 to 400% by mass based on 100% by mass of the second varnish.