Toyo Ink Manufacturing Company

Hisamitsu Pharmaceutical Company, Inc.

Toyo Ink Mfg. Co., Ltd.

Yusaku Ide

Keisuke Kaiho

Risaburo Yoshida

Michichika Hikosaka

Takeshi Hirose

Toshimitsu Ikegaya

Takuya Kotani

Kanji Noda

Osamu Shiromaru

Toshio Oshiba

Tsuneo Kawamura

Tetsuya Yamagata

Hirotaka Kida

A process for the production of a &#x3b2; type copper phthalocyanine pigment, comprising dry-milling a crude copper phthalocyanine having a purity of 97 to 100% and a primary crystal diameter of 0.5 to 100 &#x3bc;m at a temperature of 180 to 50&#xb0; C., to prepare an &#x3b1;/&#x3b2; mixed crystal type copper phthalocyanine having an &#x3b1; ratio of 5 to 35%, and treating the dry-milled product with a water-miscible organic solvent, MePc&#x2014;(SONRRRR).&#x2003;&#x2003;(3)

Process for the production of &#x3b2; type copper phthalocyanine pigment and a use thereof

A coated pigment highly surface-modified with a substantially water-insoluble organic surface modifier, produced by preparing a mixture of water and a substantially water-insoluble organic surface modifier, pressurizing the mixture, introducing the mixture into a flow path having a diameter-decreased portion and a turning portion to cause a shear force in the mixture of which the flow is accelerated while the mixture is passing the diameter-decreased portion, mutual collision of the mixture of which the flow has been accelerated or collision of the mixture of which the flow has been accelerated against a wall constituting the flow path, thereby obtaining an aqueous dispersion in which the substantially water-insoluble organic surface modifier is homogeneously dispersed in the water, mixing the aqueous dispersion with the pigment to coat the pigment with the substantially water-insoluble organic surface modifier, and isolating the pigment coated with the substantially-water-insoluble organic surface modifier.

Coated pigment and colorant composition

A process for the production of a .beta.-form copper phthalocyanine having a particle size of 0.005 to 0.2 .mu.m and an aspect ratio of 1 to 3, which comprises the following steps:

Process for the production of .beta.-form copper phthalocyanine pigment

A process for the preparation of a copper phthalocyanine pigment, which comprises dry grinding crude copper phthalocyanine, treating the dry ground crude copper phthalocyanine with an aqueous solution of a mineral acid under such conditions of acid concentration and temperature as not to transform the .beta. form contained in the ground crude copper phthalocyanine into the .alpha. one to thereby carry out the pigmentation and removing the mineral acid from the resulting mixture.

Process for the preparation of copper phthalocyanine pigment

A thermogenic sheet combined poultice comprising a thermogenic composition layer capable of generating heat in the presence of air or oxygen and a heat-stable wet pack composition layer; and a process for the production of the thermogenic sheet combined poultice.

Thermogenic sheet-combined poultices

A thermally diffusible composite comprising a thermally diffusible medicine such as allethrin, a thermogenic composition including an alkali metal sulphide or the like, carbonaceous material or the like and, if desired, a filler such as cellulose. In one embodiment, this invention relates to such a thermally diffusible composite the thermogenic composition or the whole of which is enclosed in an oxygen-impermeable container.

Thermally diffusible composites

A thermogenic composition comprising (1) at least one compound such as an alkali metal sulphide, polysulphide, hydrosulphide, hydrate thereof or mixture thereof, (2) at least one catalytically functional compound such as carbonaceous material or iron carbide and, if desired, (3) at least one filler such as natural or synthetic staple fibers or aluminum oxide.

Growing community of inventors

Tokyo, Japan

Yusaku Ide