Sanyo Chemical Industries, Ltd.

San Nopco Limited

Nobuo Hisada

Hiroaki Maeda

Daisuke Nakamura

Yohei Matsumura

Yoshihide Izumi

Yoshiyuki Ueno

Tadashi Yamauchi

Yasushi Nishigakiuchi

Yoshimi Inden

Nami Gyotoku

Tadao Yagyu

Yasuo Kotani

An object of the present invention is to provide an oil-in-water emulsion defoaming agent that is superior in defoaming properties (initial defoaming property and defoaming durability) and stability (emulsion stability). The present invention provides an oil-in-water emulsion defoaming agent including hydrophilic fumed silica (C), wherein an oil phase (A) is emulsified and dispersed in a water phase (B). Preferably, the content of the oil phase (A) is 10 to 50% by weight, the content of the hydrophilic fumed silica (C) is 0.1 to 6% by weight, and the content of the water phase (B) is 44 to 89.9% by weight based on the weight of the oil phase (A), the hydrophilic fumed silica (C), and the water phase (B). The weight ratio (A/C) of the oil phase (A) to the hydrophilic fumed silica (C) is preferably from 2 to 100.

Defoaming agent

The present invention is a defoaming agent comprising a fatty acid amide (A), a base oil (B) that is liquid at 25&#xb0; C., an oil thickening agent (C), and a surfactant (D), wherein the content of the fatty acid amide (A) is 1 to 10% by weight, the content of the base oil (B) that is liquid at 25&#xb0; C. is 71 to 97.9% by weight, the content of the oil thickening agent (C) is 0.1 to 10% by weight, and the content of the surfactant (D) is 1 to 9% by weight based on the weight of the fatty acid amide (A), the base oil (B) that is liquid at 25&#xb0; C., the oil thickening agent (C), and the surfactant (D), and the viscosity (25&#xb0; C.) at a shear rate of 1000 sis 0.1 to 1.0 Pa&#xb7;s.

Method of bleaching pulp with an assistant R2 -O-&lcub;(C2H4O)m/(AO)p&rcub;&mdash;(AO)q &mdash;H or (R3)t &mdash;X&mdash;&lcub;(C2H4O)m/(AO)p&rcub;&mdash;(AO)r &mdash;H

Process for bleaching cellulose pulp with a bleaching assistant having the formula R1-O-&lcub;&lsqb;(C2H4O)m/(AO)n&rcub;&rsqb;-H

A modifier composition useful for the preparation of a modified polymer which includes:

Modifier composition and a modified polymer

A color developer is provided comprising a polyvalent metal salt of a salicylic derivative. The salicylic derivative is made up of ring-substituted salicylic compounds having one, two and three styrene units bonded to salicylic core where at least 25% of the salicylic derivatives are polyvalent metal salts.

Color developers and sheets thereof

Growing community of inventors

Kyoto, Japan

Nobuo Hisada