DRUCKEMPFINDLICHER KLEBSTOFF AUF SILOXANBASIS

Pressure sensitive adhesives which require no cure to develop maximum adhesive properties are obtained from mixtures of (1) from 30 to 70 weight percent of block copolymers of (A) styrenic monomers and (B) polydimethylsiloxane in which the styrenic blocks account for from 5 to 25 percent by weight o...

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Bibliographische Detailangaben
1. Verfasser:	RICHARD HAHN,JAMES
Format:	Patent
Sprache:	ger
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 MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	Pressure sensitive adhesives which require no cure to develop maximum adhesive properties are obtained from mixtures of (1) from 30 to 70 weight percent of block copolymers of (A) styrenic monomers and (B) polydimethylsiloxane in which the styrenic blocks account for from 5 to 25 percent by weight of the total weight of the block copolymer and (2) from 30 to 70 percent by weight based on the total weight of (1) and (2) of a copolymer of Me3SiO.5 and SiO2 units in which the mol ratio of Me3SiO.5 to SiO2 is from 0.6:1 to 0.9:1 and Me is a methyl radical. A typical example of (1) is a block copolymer of styrene and dimethylpolysiloxane.