Claims
- 1. A container made of synthetic resin and provided at one portion thereof with at least one tightly closable opening, which container has on at least either of the inner and outer surfaces thereof a continuous coating having a gas barrier characteristics comprising low permeability to oxygen and carbon dioxide by the plasma treatment reaction of a mixture of a silicon compound having the general formula I: ##STR10## wherein m denotes an integer of the value of 1 to 5, with a silicon compound having the general formula II: ##STR11## wherein n denotes an integer of the value of 1 to 5 and R.sup.1 and R.sup.2 independently denote an alkyl or alkoxy group having 1 to 4 carbon atoms, a phenyl group, or hydroxyl group, providing that both R.sup.1 and R.sup.2 are not both hydroxyl groups.
- 2. A container made of synthetic resin according to claim 1, wherein the ratio of said silicon compound (II) being from 0.5 to 3 mols per mol of said silicon compound (I).
- 3. A container made of synthetic resin according to claim 1, wherein said container body made of synthetic resin is made of transparent synthetic resin.
- 4. A container made of synthetic resin according to claim 2, wherein said coating is a transparent coating.
- 5. A container made of synthetic resin according to claim 1, wherein said coating has a thickness in the range of 0.01 to 2 .mu.m.
- 6. A container made of synthetic resin according to claim 1, wherein m in said general formula I denotes an integer of the value 1 to 5 and n in said general formula II denotes an integer of the value 1 to 5 and R.sup.1 and R.sup.2 in the same general formula independently denote an alkyl group having 1 to 4 carbon atoms or a hydroxyl group and the ratio of silicon compound (II) being from 1 to 2 mols per mol of said silicon compound (I).
- 7. A container made of synthetic resin according to claim 6, wherein R.sup.1 in said general formula II is an alkyl group having 1 or 2 carbon atoms and R.sup.2 in the same general formula is a hydroxyl group.
- 8. A container made of synthetic resin according to claim 1, wherein said container body is a tubular member made of synthetic resin and having one end thereof closed and the other end thereof opened and said open end of said tubular member is tightly closed with a pierceable plug member.
- 9. A container made of synthetic resin according to claim 8, wherein said container is a vacuum blood collecting vessel.
- 10. A container made of synthetic resin according to claim 8, wherein said container is further subjected to sterilization with radiation.
- 11. A container made of synthetic resin according to claim 10, wherein said radiation is gamma ray.
- 12. A container made of synthetic resin according to claim 8, wherein said tubular member has chemical agent for test held therein.
- 13. A container made of synthetic resin according to claim 12, wherein said chemical agent for test in an oxidative substance.
- 14. A container made of synthetic resin according to claim 13, wherein said oxidative substance is a liquid or gel-like culture medium.
- 15. A container made of synthetic resin according to claim 13, wherein said oxidative substance is an anticoagulant.
- 16. A container made of synthetic resin according to claim 8, wherein said closed space is kept under pressure lower than the atmospheric pressure.
- 17. A container made of synthetic resing according to claim 1, wherein said container body holds a chemical agent therein and has the opening thereof closed to isolate the inner atmosphere from the outer atmosphere.
- 18. A container made of synthetic resin according to claim 17, wherein said chemical agent is an oxidative substance.
- 19. A container made of synthetic resin according to claim 18, wherein said chemical agent is a liquid.
- 20. A container made of synthetic resin according to claim 17, wherein said container body made of synthetic resin is formed of synthetic resin resistant to heat.
- 21. A container made of synthetic resin according to claim 17, wherein said inner atmosphere is formed of a gas inactive to said chemical agent.
- 22. A method for the manufacture of a container made of synthetic resin and provided at one portion thereof with at least one tightly closable opening, which method comprises applying upon at least either of the inner and outer surfaces of the container body a mixed solution consisting of a silicon compound having general formula I: ##STR12## wherein m denotes an integer of the value of 1 to 5, and a silicon compound having the general formula II: ##STR13## wherein n denotes an integer of the value of 1 to 5 and R.sup.1 and R.sup.2 independently denote an alkyl or alkoxy group having 1 to 4 carbon atoms, a phenyl group, or hydroxyl group, providing that both R.sup.1 and R.sup.2 are not both hydroxyl groups, drying the applied layer of said mixed solution, and subsequently subjecting the dried layer to a plasma treatment in the absence of a catalyst and in the presence of the gas of an oxygen atom-containing molecule thereby covering said surface of the container body with a continuous coating having gas barrier characteristics comprising low permeability to oxygen and carbon dioxide.
- 23. A method according to claim 22, wherein the ratio of said silicon compound (II) is from 0.5 to 3 mols per mol of said silicon compound (I).
- 24. A method according to claim 22, wherein said reaction is carried out under a vacuum in the range of 0.01 to 2.0 Torrs.
- 25. A method according to claim 22, wherein the gas of an oxygen atom-containing molecule contains oxygen in a concentration in the range of 20 to 100%.
- 26. A method according to claim 22, wherein the reaction temperature is in the range of 0.degree. to 150.degree. C.
- 27. A method according to claim 22, wherein m in said general formula I denotes an integer of the value of 1 to 5 and n in said general formula II denotes an integer of the value of 1 to 5 and R.sup.1 and R.sup.2 in the same general formula independently denote an alkyl group having 1 to 4 carbon atoms or hydroxyl group and the ratio of silicon compound (II) being from 1 to 2 mols per mol of said silicon compound (I).
- 28. A method according to claim 27, wherein R.sup.1 in said general formula II is an alkyl group having 1 or 2 carbon atoms and R.sup.2 in the same general formula is hydroxyl group.
- 29. A method according to claim 22, wherein said plasma treatment is carried out for a period in the range of 0.1 to 60 minutes.
- 30. A method according to claim 22, wherein said synthetic resin is transparent synthetic resin.
- 31. A method according to claim 22, wherein said mixed solution of silicon compounds is applied on the surface of said container body by virtue of ultrasonic waves.
- 32. A method according to claim 22, wherein said container body made of synthetic resin is washed in advance.
- 33. A method according to claim 32, wherein said washing treatment is carried out in an aqueous solution.
- 34. A method according to claim 33, wherein said washing treatment is carried out by virtue of ultrasonic waves.
- 35. A method according to claim 22, wherein said container body made of synthetic resin is washed in advance and said mixed solution of silicon compounds is applied to the surface of said container body by virtue of ultrasonic waves.
- 36. A method according to claim 35, wherein said washing treatment carried out in an aqueous solution.
- 37. A method according to claim 36, wherein said washing treatment is carried out by virtue of ultrasonic waves.
- 38. A method according to claim 22, wherein said plasma treatment is carried out as split in a plurality of rounds.
- 39. A method according to claim 38, wherein said plasma treatment is carried out as split in two rounds and the container under treatment in cooled between the first and second rounds of the plasma treatment.
Priority Claims (4)
Number |
Date |
Country |
Kind |
59-92933 |
May 1984 |
JPX |
|
59-92934 |
May 1984 |
JPX |
|
59-92935 |
May 1984 |
JPX |
|
59-92936 |
May 1984 |
JPX |
|
Parent Case Info
This is a continuation-in-part of application Ser. No. 731,962, filed May 8, 1985, which is abandoned.
US Referenced Citations (9)
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
731962 |
May 1985 |
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