Patents Assigned to Oosaka Yuuki Kagaku Kogyo Kabushiki Kaisha

Water absorbent polymer keeping absorbed water therein in the form of independent grains

Patent number: 5326819

Abstract: A method for the production of water absorbent polymer beads which retain a bead like shape after the absorption of water, wherein the absorbent beads are used in the manufacturing of concrete/mortar.

Type: Grant

Filed: October 9, 1991

Date of Patent: July 5, 1994

Assignee: Oosaka Yuuki Kagaku Kogyo Kabushiki Kaisha

Inventors: Taiji Kanbayashi, Chuzo Kato
Method for the production of fine grain ice and dry clathrate water for manufacturing of concrete/mortar, a method for the production of concrete/mortar by using fine grain ice or dry clathrate water and concrete/mortar products manufactured thereby

Patent number: 5164428

Abstract: Concrete/mortar is manufactured with a small amount of water by using fine polymer particles containing frozen water. The water becomes available when the particles thaw or the particles may be used directly without freezing.

Type: Grant

Filed: February 15, 1990

Date of Patent: November 17, 1992

Assignees: Mitsui Kensetsu Kabushiki Kaisha, Shiiai Kemutekku Kabushiki Kaisha, Oosaka Yuuki Kagaku Kogyo Kabushiki Kaisha

Inventors: Tadashi Okamoto, Toru Sato, Taiji Kanbayashi, Chuzo Kato
Method for the production of concrete/mortar by using dry clathrate water and concrete/mortar products produced thereby

Patent number: 5092933

Abstract: Concrete/mortar is manufactured with a small amount of water by using a dry clathrate water mixture. The dry clathrate water is used in a state wherein the water is impregnated into a water absorbent polymer.

Type: Grant

Filed: March 18, 1991

Date of Patent: March 3, 1992

Assignees: Mitsui Kensetsu Kabushiki Kaisha, Shiiai Kemutekku Kabushiki Kaisha, Oosaka Yuuki Kagaku Kogyo Kabushiki Kaisha

Inventors: Tadashi Okamoto, Toru Sato, Taiji Kanbayashi, Chuzo Kato

Water absorbent polymer keeping absorbed water therein in the form of independent grains

Method for the production of fine grain ice and dry clathrate water for manufacturing of concrete/mortar, a method for the production of concrete/mortar by using fine grain ice or dry clathrate water and concrete/mortar products manufactured thereby

Method for the production of concrete/mortar by using dry clathrate water and concrete/mortar products produced thereby