HOT-MELT TACKY AGENT COMPOSITION

• Main Authors: GOTO MASAHIKO, OYAMA YASUHIKO, TODA TOMOMOTO
• Format: Patent
• Language: English
• Published: 20.12.1989
• Subjects: 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

PURPOSE:To obtain the subject composition having excellent tackiness, etc., to low polar adherend material such as polyolefin resin by subjecting alkyl (meth)acrylate, specific polymerizable polymer, N-vinylpyrrolidone and polar monomer to radical copolymerization in a specific ratio. CONSTITUTION:(A) 100 pts.wt. alkyl (meth)acrylate expressed by formula I (R1 is H or CH3; R2 is 4-10C chainlike hydrocarbon) [e.g., butyl (meth)acrylate], (B) 5-30 pts.wt., preferably 8-15 pts.wt. polymerizable polymer expressed by formula II [R3 is H or CH3; R4 is non-polymerizable polymer having 2000-50000 weight-average molecular weight and >=50 deg.C Tg (preferably PS or polymethyl methacrylate)], (C) 2-25 pts.wt., preferably 5-15 pts.wt. N-vinyl-2-pyrrolidone and (D) 0.2-5 pts.wt., preferably 0.5-2 pts.wt. polar monomer (preferably acrylamide or acrylic acid) are subjected to radical copolymerization to afford the aimed composition.