SELF-ADHESIVE SOFT PVC SHEET

PURPOSE:To provide a self-adhesive soft PVC sheet which adheres firmly even to embossed surfaces with projections and glossy surfaces without causing staining of the adherend, prepared by adding a stabilizer and two types of plasticizers to a specified PVC resin. CONSTITUTION:100pts.wt. PVC resin wi...

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Bibliographische Detailangaben
1. Verfasser:	YAMAKI YOSHITAKA
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a self-adhesive soft PVC sheet which adheres firmly even to embossed surfaces with projections and glossy surfaces without causing staining of the adherend, prepared by adding a stabilizer and two types of plasticizers to a specified PVC resin. CONSTITUTION:100pts.wt. PVC resin with an average degree of polymerization of 800-1,500, 0.5-2.0pts.wt. Ba-Zn stabilizer, 3-5pts.wt. epoxy plasticizer (e.g. epoxidized soybean oil) and 45-65pts.wt. polyester plasticizer with an average molecular weight of 2,000-2,500 (pref. glycol ester of dibasic acid with a molecular weight of 2,200-2,400) are mixed in a Henshel mixer, etc. and the mixture is formed into sheet of desired thickness in a calendering machine heated to a final temperature of 145-180 deg.C. When necessary, a release paper is attached to one side of the sheet. The use of two types of plasticizers makes it possible to attach the sheet even to embossed surfaces with projections and glossy surface of glass plate, steel plate, etc. by the self-adhesive power of the sheet without the need of adhesive or self-adhesive.