| 摘要 |
874,808. Paper containing composite filaments. OWENS-CORNING FIBERGLAS CORPORATION. Dec. 22,1958 [Dec. 30, 1957], No. 41367/58. Drawings to Specification. Class 96. [Also in Groups IX and XXIII] Composite curly filaments comprising two components made of compatible heat-softenable materials of which at least one is glass, the materials of the respective components having different coefficients of expansion and the components being in eccentric side-by-side abutting relationship, are combined with other fibres, e.g. cotton, in making paper. Preferably the components of the filaments are glasses of different compositions, but they may also be glass and metal, e.g. aluminium, lead, or zinc, or glass and alloys of such metals. |
