Pressure-sensitive adhesive

Details Pressure-sensitive adhesive Pressure-sensitive adhesive

1988-12-22

1990-04-17

Ivy, C. Warren

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524458, 524504, 524533, 525310, C08F25300, C08L 702

Patent

active

049181289

ABSTRACT:
The pressure-sensitive adhesive of the invention comprises a latex of natural rubber graft-copolymerized with 2 to 10% by weight of styrene and 10 to 25% by weight of methyl methacrylate and a finely divided particulate material having no thermoplasticity such as silica gels and zeolites in an amount of 5 to 30 parts by weight per 100 parts by weight of the natural rubber. The pressure-sensitive adhesive has excellent characteristics in the adhesive bonding, resistance against blocking, frictional behavior, heat resistance and abrasion resistance and also is free from the trouble of decrease in the adhesive bonding strength caused by the transfer of a silicone oil from the roller of printing machines.

REFERENCES:
patent: 2780605 (1957-02-01), Bevilacqua
patent: 3981958 (1976-09-01), Nakashima
Ishikawa, "Polymerizations of Methylmethacrylate and Styrene Initiated with Natural Rubber Latax", Kobunshi Rondunshu, vol. 31 (No. 12) 1974, pp. 733-7.

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