Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1996-12-16
1999-05-04
Mullis, Jeffrey C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525314, 525315, C08L 900, C08L 4700, C08L 5300
Patent
active
059004657
ABSTRACT:
An adhesive composition suitable for a hot melt adhesive or hot melt pressure-sensitive adhesive, which comprises a block copolymer (a) and a tackifier (b), wherein said block copolymer (a) has at least one polymer block A being a hydrogenated butadiene polymer block having a 1,2-bond content of 20 mol % or less and at least one polymer block B substantially having an olefin polymer structure different from the polymer block A and having a glass transition temperature of -20.degree. C. or less and a heat of crystalline fusion of 8 cal/g or lower, and containing the polymer block A before hydrogenation in an amount of 3 to 80 wt. %.
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Encyclopedia of Polymer Science and Engineering, vol. 1, pp. 548-549, vol. 7, pp. 774-776. J Wiley and Sons, New York, 1987.
Hirayama Yoshio
Maeda Mizuho
Nakata Hiromichi
Nishikawa Makoto
Takamatsu Hideo
Kuraray Co. Ltd.
Mullis Jeffrey C.
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