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...
Patent
1999-04-06
2000-10-31
Niland, Patrick D.
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...
162135, 1621646, 4284251, 524839, 524840, C08J 300, C08K 320, C08L 7500, D21H 1100, D21H 1300
Patent
active
061404128
ABSTRACT:
A waterproofing agent for ink jet printing paper comprising an aqueous cationic polyurethane resin solution prepared by dispersing or dissolving in water one or more types of cationic polyurethane resins obtained by neutralizing with acid or quaternizing with a quaternizing agent part or all of the tertiary amino groups of a polyurethane molecule obtained by isocyanate polyaddition reaction of a polyol with at least 2 active hydrogen atoms which can react with isocyanate groups and with a weight average molecular weight of 300-5000, a diol, triol, diamine or triamine compound with a tertiary amino group and a weight average molecular weight of less than 300, and an organic isocyanate with at least 2 isocyanate groups.
REFERENCES:
patent: 3971764 (1976-07-01), Schurmann et al.
patent: 4293474 (1981-10-01), Dieterich et al.
patent: 4305858 (1981-12-01), Reischl
patent: 5561187 (1996-10-01), Bechara et al.
Saitoh Tohru
Sasaki Mitsuru
Nicca Chemical Co., Ltd.
Niland Patrick D.
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