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Medical soft polychloroethylene plastic without o-benzene series plasticiser

A technology of phthalic plasticizers and soft polyvinyl chloride, which is applied in the field of medical soft polyvinyl chloride plastics without phthalic plasticizers and its production, can solve the problems of DOP dissolution, adverse effects on human body and environment, etc. , to achieve the effect of improving low temperature performance and good compatibility

Inactive Publication Date: 2009-05-20
FOSHAN JINKANGYE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, during the use of medical soft polyvinyl chloride plastics that currently use DOP as a plasticizer, DOP will dissolve and cause adverse effects on the human body and the environment.

Method used

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  • Medical soft polychloroethylene plastic without o-benzene series plasticiser
  • Medical soft polychloroethylene plastic without o-benzene series plasticiser

Examples

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with embodiment.

[0015] The raw material components of the medical soft polyvinyl chloride plastic that does not contain o-phthalic plasticizers are selected and accurately weighed according to the three formulas in the table below.

[0016]

[0017] In the above formulation, the polyvinyl chloride resin is suspension polymerized to obtain PVC with a polymerization degree of 1000, wherein the residual amount of vinyl chloride monomer is less than 1 mg / kg, and the viscosity number of the polyvinyl chloride resin is 50ml / g-160ml / g. The solid plasticizer is ethylene butyl acrylate carboxyl copolymer, ethylene / n-butyl acrylate / carbonmonoxide(E / nBA / CO)copolymer. The stabilizer is a medical-grade powdery or paste-like compound calcium-zinc stabilizer, wherein the mass percentages of calcium and zinc are respectively less than 1.5%. The auxiliary stabilizer is epoxidized soybean oil, its flash point is ...

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Abstract

The invention relates to a medical soft polyvinyl chloride plastic that does not contain a phthalic plasticizer and a manufacturing method thereof. The medical soft polyvinyl chloride plastic comprises the following raw materials: polyvinyl chloride resins, plasticizers, stabilizers, auxiliary stabilizers and lubricants. The medical polyvinyl chloride plastic is characterized in that the plasticizers are divided into solid plasticizers and liquid plasticizers; the mass portions of all the components are as follows: 100 portions of polyvinyl chloride resins, 10 portions to 50 portions of solid plasticizers, 20 portions to 80 portions of liquid plasticizers, 1 portion to 5 portions of stabilizers, 0 portion to 5 portions of accessory stabilizers and 0.1 portion to 2 portions of lubricants. The solid plasticizers are ethylene-butyl acrylate carboxylic copolymers. The liquid plasticizers are one or combination of more than one of tetraoctyl pyromellitate, tetra-2-ethylhexyl pyromellitate, polypropylene adipate, polybutylene sebacate, polydiethylene glycol sebacate and polypropylene glycol ester sebacate. The medical polyvinyl chloride plastic is characterized by little toxicity and side effect and little possibility for the plasticizers to be drawn out.

Description

technical field [0001] The invention relates to a medical soft polyvinyl chloride plastic without phthalic plasticizers and a manufacturing method thereof, in particular to a medical soft polyvinyl chloride without phthalic plasticizers which can be used for disposable medical supplies Plastics and methods of making them. Background technique [0002] For a long time, in the production of soft polyvinyl chloride plastics for medical use, the plasticizers are mainly phthalic products, especially the use of di(2-ethylhexyl) phthalate, DOP for short, but with With the application of DOP in the food and pharmaceutical industry more and more widely, people pay more and more attention to its toxicity. It was found that when people transfused blood stored in polyvinyl chloride plastic bags, DOP products were found in the human body, especially in the lungs. That is to say, during the use of medical soft polyvinyl chloride plastics that currently use DOP as a plasticizer, DOP will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L73/00C08K5/00C08K5/12B29B9/00B29C47/92B29C48/92
CPCB29C48/04
Inventor 李翠丽叶常青杨俊郝勇
Owner FOSHAN JINKANGYE PLASTIC
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