| 摘要 |
PCT No. PCT/US90/07566 Sec. 371 Date Jun. 7, 1993 Sec. 102(e) Date Jun. 7, 1993 PCT Filed Dec. 20, 1990.A method of producing plasticized partial polyvinyl butyral sheet having a desired level of potential adhesion to glass which comprises: i) providing partial polyvinyl butyral resin having a high affinity for adhesion to glass when in sheet form under laminating conditions of elevated temperature and pressure, ii) mixing the resin with plasticizer to form a heat-shapable formulation, iii) extruding the formulation to form a sheet, and iv) applying a multiplicity of spaced anti-adhesion projections to the surface of the sheet to an extent effective to counteract the high adhesion of the sheet to glass between projections.
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