초록 ▼

A structural laminate comprises at least one planar facing sheet with a rigid foam attached to one surface of the facing sheet. The rigid foam may be any polymeric material which is capable of being foamed. Distributed substantially evenly throughout the foam is a mat of long straight glass fibers a

A structural laminate comprises at least one planar facing sheet with a rigid foam attached to one surface of the facing sheet. The rigid foam may be any polymeric material which is capable of being foamed. Distributed substantially evenly throughout the foam is a mat of long straight glass fibers arranged in layers substantially parallel to the facing sheet. The process for producing this structural laminate comprises the steps of contacting a thin, substantially incompressible yet expansible mat of long straight glass fibers with a foam-forming mixture on each face of the mat, and passing the facing sheets having the mat and the foam-forming mixture there between through the nip of two rotating rolls.

대표청구항 ▼

A process for producing a structural laminate comprising the steps of: I. contacting a thin, substantially incompressible yet expansible mat of glass fibers with a foam-forming mixture, II. positioning a facing sheet on each face of the mat, and III. passing the facing sheets having the mat and the

A process for producing a structural laminate comprising the steps of: I. contacting a thin, substantially incompressible yet expansible mat of glass fibers with a foam-forming mixture, II. positioning a facing sheet on each face of the mat, and III. passing the facing sheets having the mat and the foam-forming mixture therebetween through the nip of two rotating rolls, the mat of glass fibers being further characterized by A. the glass fibers being arranged in layers, B. the glass fibers within each layer being long, straight and substantially parallel, and C. the glass fibers in each layer being at an acute angle to the glass fibers in each next adjacent layer.