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Method for adhering polybutadiene molded article, polybutadiene composite molded article manufactured thereby, medical member, and infusion fluid set

A polybutadiene and bonding method technology, applied in the field of medical components and infusion devices, can solve the problems of lack of polarity of RB, insufficient bonding of polar solvent/polar resin, leakage of pipes and pipe joints, etc.

Inactive Publication Date: 2007-01-17
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, RB lacks polarity, and bonding with polar solvents / polar resins may be insufficient depending on the application
[0004] Especially in Japan and the U.S., a pump is sometimes used when infusing a patient with an infusion set. In this case, pressure is applied to the infusion set, so there is a possibility of leakage from, for example, the joint between the tube and the tube joint.

Method used

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  • Method for adhering polybutadiene molded article, polybutadiene composite molded article manufactured thereby, medical member, and infusion fluid set
  • Method for adhering polybutadiene molded article, polybutadiene composite molded article manufactured thereby, medical member, and infusion fluid set
  • Method for adhering polybutadiene molded article, polybutadiene composite molded article manufactured thereby, medical member, and infusion fluid set

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0062] Composition preparation and molding

[0063] The composition used for the polybutadiene molded article of the present invention is composed of the above-mentioned component (A) alone or (A) to (B) components, and the above-mentioned additives etc. are added thereto if necessary, softened by heating, kneaded and molded. The kneading and molding are carried out in a temperature range above the softening temperature and melting temperature of syndiotactic 1,2-polybutadiene, in which moldability is good, and processed into homogeneous molded products (medical members such as pipes). Therefore, the molding temperature is preferably about 90 to 170°C. In order to obtain molded products such as pipes and pipe joints, pressure molding, extrusion molding, injection molding, blow molding, special-shaped extrusion molding, T-shaped die film molding, blown film molding, powder slush molding, rotary molding, etc. Molding, etc., forming into pipes, etc., and pipe joints with pipe co...

Embodiment 1

[0186] Embodiment 1, comparative example 1

[0187] Table 1 shows Example 1 and Comparative Example 1. Example 1 is an example in which ozone treatment was performed on a test piece of RB. It can be seen that at 1720cm -1 Absorption of carbonyl groups is present. It can be seen that the contact angle is improved to 32 degrees due to the endowment of polar groups, it is easy to have affinity with cyclohexanone as a polar solvent, and it can be bonded to polycarbonate as a polar resin, and the adhesive force is fully displayed.

Embodiment 2

[0189] Embodiment 2, comparative example 2

[0190] Table 1 shows Example 2 and Comparative Example 2. Example 2 is an example in which ozone treatment was performed on a test piece of RB. It can be seen that at 1720cm -1 Absorption of carbonyl groups is present. It can be seen that the contact angle is improved to 32 degrees due to the addition of polar groups, it is easy to have affinity with cyclohexanone as a polar solvent, and it can be bonded to transparent ABS as a polar resin, and the adhesive force is fully reflected.

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Abstract

To improve the joining (adhesion) force of a polybutadiene formed article and a polar resin formed article, and to further improve the joining force by selecting (combining) a solvent(s) for these formed articles. A method for adhering a polybutadiene formed article, which comprises (1) the step of reducing the water contact angle of a surface of the polybutadiene formed article by ozone treatment, electron beam treatment, corona discharge treatment, plasma discharge treatment, ultraviolet laser treatment or chemical treatment, and (2) the step of adhering the polybutadiene formed article reduced in the water contact angle to a polar resin formed article.

Description

technical field [0001] The present invention relates to a bonding method for polybutadiene moldings, polybutadiene composite moldings, medical components and infusion devices obtained by the method. technical background [0002] In recent years, polybutadiene represented by syndiotactic 1,2-polybutadiene (RB) has attracted attention as a substitute material for PVC (vinyl chloride resin) that does not use a plasticizer. A medical member in which an RB tube and an RB tube joint are bonded (Patent Document 1: JP-A-2004-321788) and the like have been disclosed. [0003] Solvent joining (bonding) of tubes and tube joints of infusion sets has been commercialized. So far, as the above-mentioned infusion set, a PVC tube / solvent (polar solvent) / polar resin tube joint has been commercialized. However, in recent years, the trend of removing PVC is remarkable, and as mentioned above, research on RB instead of PVC pipes is increasing. However, RB lacks polarity, and bonding using a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/12C08J7/00C08J7/02A61M5/14C08L9/00C09J5/02
CPCB29C65/48B29K2023/083B29C2035/0827B29C65/4895B29L2031/7148B29K2023/18B29C59/16B29K2069/00B29C2059/145C09J2400/226B29C59/14B29C2035/0838C09J5/02B29C65/4845B29C65/484B29C66/534C09J2409/008B29C66/02B29C59/10B29C66/5344A61M5/14B29C66/7212B29C66/71B29C66/73921B29C66/73773B29C66/7392B29C66/7394B29C66/73161Y10T428/31931B29K2307/04B29K2077/00B29K2309/08B29K2023/04B29K2025/04B29K2075/00B29K2027/06B29K2067/00B29K2055/02B29K2033/12B29K2033/08B29K2027/08B29K2009/00C08J5/12C08J7/02C08J7/00
Inventor 古市稔丰田畅之青山彰夫
Owner JSR CORPORATIOON
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