| 摘要 |
1,172,550. Laminates. I. GEBEF GI. 29 Nov., 1967 [16 Dec., 1966], No. 54422/67. Heading B5N. [Also in Division C1] A building and insulation body of expanded perlite and/or vermiculite bonded by a composition containing expanded perlite and calcium oxide can be covered on one or more sides with a sheet of synthetic resin film, roofing felt, paper, chipboard, wood or a sheet of aluminium or steel, a mat of glass fibres, or a glass fibre reinforced synthetic resin foil or panel. The body itself can be reinforced by glass fibre fabric or mats or steel wire netting or fabric. |
