Resin composition and manufacturing method therefor

• US 20020028873A1
• Filed: 01/11/2001
• Published: 03/07/2002
• Est. Priority Date: 07/05/2000
• Status: Active Grant

• Current Assignee: Katsuhisa Masumoto
• Original Assignee: Katsuhisa Masumoto
• Inventors: Masumoto, Katsuhisa
• Granted Patent: US 6,562,898 B2
• Time in Patent Office: Days
• US Class Current: 524/580
• CPC Class Codes: C08K 3/18 Oxygen-containing compounds, e.g. metal carbonyls

Abstract

The present invention relates to resin composition with superior antioxidant properties, mechanical strength and insulating properties. A mixture of a thermoplastic resin in pellet or granular form and water is heated under pressure at a subcritical condition of the water to melt the thermoplastic resin, and the melted resin is cooled.

Claims

1. A resin composition, wherein a mixture of a thermoplastic resin in pellet or granular form and water is melted using heat and pressure under a subcritical condition of the water, and the melted resin is cooled.

2. The resin composition of claim 1, wherein the water is natural unchanged water.

3. The resin composition, of claim 1, wherein the water is purified water or distilled water containing antioxidizing substances produced by groups of effective microorganisms.

4. The resin composition of claim 1, wherein the water is purified water or distilled water.

5. The resin composition according to claim 1, wherein the thermoplastic resin is polyethylene or polypropylene.

6. The resin composition according to claim 1, wherein the melted resin is cooled using cold water with impurities removed.

13. The resin composition of claim 3, wherein the composition is used to insulate and rustproof electrical wiring.

14. The resin composition of claim 3, wherein the composition is used to line pipes so that the pipes remain free of rust.

7. A method for manufacturing a resin composition comprising a first stage wherein a thermoplastic resin in pellet or granular form is mixed and stirred in water, a second stage wherein the mixture is heated under a subcritical condition of the water and the thermoplastic resin is melted, and a third stage wherein the melted resin obtained in the second stage is cooled.

8. The method for manufacturing a resin composition according to claim 7, wherein the water is natural unchanged water.

9. The method for manufacturing a resin composition according to claim 7, wherein the water is purified water or distilled water containing antioxidizing substances produced by groups of effective microorganisms.

10. The method for manufacturing a resin composition according to claim 7, wherein the water is purified water or distilled water.

11. The method according to claim 7, wherein the melted resin obtained in the second stage is cooled using cold water with impurities removed.

12. The method for manufacturing a resin composition according to claim 7, wherein the thermoplastic resin is polyethylene or polypropylene.