Patent ID: 8877106
Filing Date: 2014-11-04
Classification: B29C,B29K,D06N

Abstract:
1. A double conveyor device for forming a phenolic resin foam plate, comprising: upper-side and lower-side conveyors for rolling a resin composition comprising at least a phenolic resin, a foaming agent and a curing agent, and forming the phenolic resin foam plate by conveying the resin composition while heating; a resin composition feeding unit for feeding the resin composition comprising the phenolic resin between the upper-side and lower-side conveyors; and surface material feeding units for feeding an air-permeable and flexible surface material between the upper-side conveyor and resin composition, and between the lower-side conveyor and the resin composition, respectively, wherein surfaces of the upper-side and lower-side traveling conveyors have apertures, the aperture area ratio of the apertures being 20% or more and 80% or less.