Vehicle front glass
AssigneeSekisui Chemical Co., Ltd.
InventorsHirofumi Kitano, Manabu Matsumoto, Kazuhiko Nakayama
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Abstract
The present invention aims to provide a vehicular windshield having a laminated glass structure in which an interlayer film for laminated glass is interposed between at least a pair of glass plates, which contains few air bubbles remaining between the glass plates and the interlayer film for laminated glass to have an excellent appearance and is less likely to cause ghosting when external rays of light are seen through the vehicular windshield.
Claims6
A vehicular windshield having a laminated glass structure, comprising at least a pair of glass plates and an interlayer film for laminated glass interposed between the pair of glass plates,
- wherein the interlayer film for laminated glass includes a laminate of two or more resin layers and has a plurality of recesses and a plurality of projections on an upper surface and a lower surface, wherein a random pattern of recesses and projections are formed in a first step, and thereafter a regularly arranged pattern of recesses and projections are formed in a second step wherein the regularly arranged pattern of recesses are recesses having a groove shape with a continuous bottom that are regularly arranged adjacently in parallel with one another and the regularly arranged pattern of projections are projections regularly arranged adjacently in parallel with one another,
- the surfaces with the plurality of recesses and the plurality of projections have a groove depth (Rzg) of the recesses having the groove shape with a continuous bottom determined in conformity with JIS B-0601(1994) of 10 to 40 μm, and
- the groove shape with a continuous bottom of the recesses having the groove shape with a continuous bottom on the surfaces of the interlayer film for laminated glass are arranged in a direction that forms an angle of 30° or less relative to a perpendicular direction of the vehicular windshield.
Dependencies are inferred from the claim text.