Glassy sintered body

• US 5,814,572 A
• Filed: 10/10/1997
• Issued: 09/29/1998
• Est. Priority Date: 05/08/1995
• Status: Expired due to Fees

• Current Assignee: Crystal City LLC (Park Hotels & Resorts Inc.)
• Original Assignee: Crystal City LLC (Park Hotels & Resorts Inc.)
• Inventors: Kato, Masami, Hanaoka, Kokichi, Saiki, Kazuo
• Primary Examiner(s): Bell, Mark L.
• Assistant Examiner(s): TROILO, LOUIS
• Application Number:
  US08/948,590
• Time in Patent Office: 354 Days
• Field of Search: 501/32, 501/129, 501/130, 501/131, 501/143, 501/144, 501/141, 501/155, 106/DIG. 4
• US Class Current: 501/32
• CPC Class Codes: C03C 1/00 Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
• CPC Class Codes: C03C 1/002 Use of waste materials, e.g. slags
• CPC Class Codes: C04B 2235/36 Glass starting materials for making ceramics, e.g. silica glass
• CPC Class Codes: C04B 2235/656 characterised by specific heating conditions during heat treatment
• CPC Class Codes: C04B 2235/96 Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
• CPC Class Codes: C04B 33/13 Compounding ingredients C04B33/36, C04B35/71 take precedence ; pigments for ceramics C09C1/0009
• CPC Class Codes: C04B 33/132 Waste materials; Refuse; ResiduesC04B33/16 takes precedence; waste glass C04B33/13
• CPC Class Codes: C04B 33/32 Burning methods
• CPC Class Codes: C04B 35/19 Alkali metal aluminosilicates, e.g. spodumene
• CPC Class Codes: C04B 35/6263 characterised by their solids loadings, i.e. the percentage of solids
• CPC Class Codes: Y02P 40/60 Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
• CPC Class Codes: Y10S 106/04 Bentonite

Abstract

An object of the present invention is to provide a glassy sintered body and to effectively reuse scrapped glass.

The glassy sintered body of the present invention is made by preparing a raw material of the body by adding ceramic clay to glass as a main element so as to adjust the amount of water and kneading the glass and the clay, forming the raw material into a prescribed form, and sintering the formed material.

Claims

1. A glassy sintered body consisting essentially of a sintered raw material,

wherein said raw material is a mixture made by adding 25-30 wt. % of bentonite, which includes 3 wt. % of water, to 70-75 wt. % of a powdery glass crushed into a powder form, kneading said mixture of said powdery glass and said bentonite, and forming said kneaded raw material,

wherein said raw material is sintered at a temperature between 950°

and 1000°

C.

2. A method of manufacturing a glassy sintered body, consisting essentially of the steps of:

adding 25-30 wt. % of bentonite, which includes 3 wt. % water, to 70-75 wt. % of a powdery glass crushed into a powder form, which is a main element;

kneading said powdery glass and said bentonite to make a raw material;

forming said raw material; and

sintering said formed material at a temperature between 950° and

1000°

C.

3. A method of manufacturing a glassy sintered body, comprising the steps of:

adding bentonite to scrapped glass;

kneading said scrapped glass, and said bentonite to make a raw material of 22-25 wt % bentonite and 70-75 wt % of scrapped glass, having 3 wt % of water;

forming said raw material with a press machine; and

sintering said formed material at a temperature between 950°

-1000°

C.