초록

In a gypsum board faced with a fibrous mat, for example, a mat of glass filaments adhesively bound together, improvements are realized by the use of a reinforcing binder in the mat.

대표청구항 ▼

[ I claim:] [1.] A gypsum board comprising a gypsum core and a fibrous mat adhered to at least one surface of said core by set gypsum of the core penetrating but part-way through the thickness of the mat such the at least a portion of the outer surface of said mat is substantially free of set gypsum

[ I claim:] [1.] A gypsum board comprising a gypsum core and a fibrous mat adhered to at least one surface of said core by set gypsum of the core penetrating but part-way through the thickness of the mat such the at least a portion of the outer surface of said mat is substantially free of set gypsum, said mat comprising tibers bound together with an adhesive and including also a reinforcing resinous binder on at least said substantially gypsum-free surface of said mat.