USE OF ADHESIVE MATERIALS HAVING A HIGH REFRACTIVE INDEX BASED ON ACRYLATE BLOCK COPOLYMERS FOR ADHESION ON OPTICAL TRANSPARENT SUBSTRATES

Pressure-sensitive adhesive material comprising block copolymers based at least partly on (meth)acrylic acid derivatives and containing the unit P(A)-P(B)-P(A), in which at least one of the blocks P(A) has a refractive index (RI) of 1.58 or more, block P(B) has an RI of 1.43 or more and the material...

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Bibliographische Detailangaben
Hauptverfasser:	DOLLASE, Thilo, HUSEMANN, Marc
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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 adhesive material comprising block copolymers based at least partly on (meth)acrylic acid derivatives and containing the unit P(A)-P(B)-P(A), in which at least one of the blocks P(A) has a refractive index (RI) of 1.58 or more, block P(B) has an RI of 1.43 or more and the material itself has an RI of 1.52 or more. Pressure-sensitive adhesive based on at least 50% block copolymer(s), at least one of which is based at least partly on (meth)acrylic acid derivatives and comprises the unit P(A)-P(B)-P(A). Blocks P(A) are homo- or co-polymer blocks with a softening point (ST) of 0 to +175degreesC, derived from monomers of group (A), and block P(B) is a homo- or co-polymer block with an ST of -130 to +10degreesC, derived from monomers (B); P(A) and P(B) are not homogeneously miscible with one another at 25degreesC. Material (I) has a refractive index (RI) of at least 1.52 at 25degreesC, at least one of the blocks P(A) has an RI of at least 1.58 at 25degreesC and block P(B) has an RI of at least 1.43 at 25degreesC.