Poly-1-butene blend adhesives for laminar structure

• Main Author: MOSTERT; SIMON
• Format: Patent
• Language: English
• Published: 16.05.1989
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

A laminar structure comprising a substrate and a hot melt adhesive, wherein said hot melt adhesive comprises: (A) a butene-1 polymer blend of from 10% by weight of 90% by weight of an at least partially crystalline copolymer of butene-1 and ethylene, wherein the ethylene content is from about 1 mole % to about 20 mole % of said copolymer, and from 10% by weight to 90% by weight of a butene-1 homopolymer; (B) from about 20% by weight to about 60% by weight of a substantially non-polar tackifying resin selected from the group consisting of polyterpene and aliphatic resins from C5-C9 hydrocarbon streams or hydrogenated resins thereof with softening points in the range of 70 DEG C. to 130 DEG C.; and (C) from about 0.1 phr to about 0.5 phr of an antioxidizing agent.