Melt adhesive contg. block co-polymer - of vinyl:aromatic monomer and butadiene!- isoprene copolymer block, giving heat resistant bond

Melt adhesive is a mixt. of (a) 100 pts. wt. of a non- hydrogenated, linear block copolymer with mol.wt. 30,000-300,000 of formula A-B-A, in which the terminal A blocks form 10-50 wt.% of the block copolymer, each have mol.wt. 5,000-50,000 and are non-elastomeric blocks of a monovinyl-aromatic monom...

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Bibliographic Details
Main Authors DRUSCHKE,.DR.,WOLFGANG, FAHRBACH,.DR.,GERHARD, GROH,.DR.,WOLFGANG
Format Patent
LanguageEnglish
German
Published 30.04.1981
Subjects
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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Summary:Melt adhesive is a mixt. of (a) 100 pts. wt. of a non- hydrogenated, linear block copolymer with mol.wt. 30,000-300,000 of formula A-B-A, in which the terminal A blocks form 10-50 wt.% of the block copolymer, each have mol.wt. 5,000-50,000 and are non-elastomeric blocks of a monovinyl-aromatic monomer, and the block B is an elastomeric (co)polymer of butadiene and/or isoprene in ratio by wt. of 70:30-5:95; (b) 25-300 pts. wt. of a tackifying resin; (c) 5-200 pts.wt. of a rubber extending oil; and opt. (d) the usual additives. Compsn. is esp. used as a pressure-sensitive adhesive for self-bonding materials, e.g. films, labels, floor or wall coverings, and medicinal plasters.
Bibliography:Application Number: DE19792942128