CHEMICAL COMPOSITION FOR COMBUSTIBLE TIP USED FOR FRICTION MATCHES AND METHOD FOR MANUFACTURING SAME

• US 3,775,198 A
• Filed: 08/14/1972
• Issued: 11/27/1973
• Est. Priority Date: 08/14/1972
• Status: Expired due to Term

• Current Assignee: Hiroshi Hijikata
• Original Assignee: Hiroshi Hijikata
• Inventors: Hijikata, Hiroshi
• Primary Examiner(s): Sebastian, Leland A.
• Application Number:
  US05/280,594
• Time in Patent Office: 470 Days
• Field of Search: 44/42 149/18,85
• US Class Current: 149/18
• CPC Class Codes: C06F 3/00 Chemical features in the manufacture of matches ignition compositions C06B

Abstract

Chemical composition for combustible tip including such inflammable components as vinyl acetate, cellulosic substance and shellac instead of sulfur used in the conventional chemical composition of sulphurated tip so as to effectively obviate production of disgustful fume and poisonous effect on the human body at the time of ignition and inflammation. Also disclosed is a method for manufacturing such chemical composition for combustible tip through development and uniform dispersion of very fine air voids in the composition by active stirring.

Claims

2. Improved chemical composition as claimed in claim 1 comprising from 2.0 to 3.5 percent by weight of said inflammable organic component, from 1.0 to 1.5 percent by weight of aluminum hydroxide and from 0.5 to 2.5 percent by weight of a member selected from the group consisting of starch and sugar.

3. Improved chemical composition of combustible tips as claimed in claim 2 comprising from 0.5 to 1.0 percent by weight of vinyl acetate.

4. Improved chemical composition of combustible tips as claimed in claim 2 comprising from 1.0 to 1.5 percent by weight of cellulosic substance.

5. Improved chemical composition of combustible tips as claimed in claim 2 comprising from 0.5 to 1.0 percent by weight of shellac.

6. Improved chemical composition of combustible tips as claimed in claim 1 further comprising titanium dioxide.

7. Improved chemical composition of combustible tips as claimed in claim 6 wherein the content ratio of said titanium dioxide is in a range from 2.5 to 3.0 percent by weight.

8. Improved chemical composition of combustible tips as claimed in claim 1 further comprising potassium bichromate.

9. Improved chemical composition of combustible tips as claimed in claim 8 where the content ratio of said potassium bichromate is in a range up to 1.0 percent by weight.

10. A method for manufacturing combustible tip friction matches which method comprises, combining glue with potassium chlorate, actively stirring the mixture of glue with potassium chlorate to a spongy mixture, adding inorganic fillers selected from the group consisting of powdered glass and aluminum hydroxide to the spongy Mixture, adding cellulosic substance and shellac to the spongy mixture, adding a member of the group consisting of starch and sugar to the spongy mixture, thereafter adding vinyl acetate to the spongy mixture and stirring the mass to uniform mixture, and applying the resulting mixture to tips of match sticks.

11. The method as claimed in claim 10 wherein the blending ratio of said inflammable organic compound is in the range from 2.0 to 3.5 percent by weight of the finally obtained composition, the blending ratio of said aluminum hydroxide is in a range from 1.0 to 1.5 percent by weight of the finally obtained composition, and the blending ratio of said member of the group consisting of starch and sugar is in a range from 0.5 to 2.5 percent by weight of the finally obtained composition.

12. Method as claimed in claim 11 wherein the blending ratio of said vinyl acetate is in a range from 0.5 to 1.0 percent by weight of the finally obtained, combustible tip composition.

13. Method as claimed in claim 11 wherein the blending ratio of said cellulosic substance is in a range from 1.0 to 1.5 percent by weight of the finally obtained combustible tip composition.

14. Method as claimed in claim 11 wherein the blending ratio of said shellac is in a range from 0.5 to 1.0 percent by weight of the finally obtained combustible tip composition.

15. Method as claimed in claim 10 further comprising adding titanium dioxide together with said inorganic filler.

16. Method as claimed in claim 15 wherein the blending ratio of said titanium dioxide is in a range from 2.5 to 3.0 percent by weight of the finally obtained combustible tip composition.

17. Method as claimed in claim 10 further comprising adding aqueous solution of potassium bichromate to said spongy mixed solution of glue with potassium chlorate after said active stirring.

18. Method as claimed in claim 10 wherein said spongy mixed solution is actively stirred for about 10 minutes so that very fine air voids are developed and uniformly dispersed in the solution.

19. Method as claimed in claim 10 wherein said sugar is added at a stage after addition of said vinyl acetate.