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A kind of medical PVC broad-band light-shielding granular material and its preparation method and application

A wide-band, PVC resin technology, applied in the field of light-shielding medical materials, can solve the problems of lower transmittance, easy to be oxidized, and poor light stability of n-octyloxybenzophenone, etc., to ensure the safety of use, Effects of preventing deterioration and denaturation and extending the range of shading

Active Publication Date: 2020-10-02
浙江天原医用材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The patent with the application number CN201510775824.0 reduces the light in the 290-450nm band by adding hindered amine light stabilizers, phenyl salicylate, benzotriazoles and 4-(1-naphthylazo)-1-naphthol At the same time, the transmittance of visible light is improved, but the photodegradation products of phenyl salicylate are harmful, and benzotriazole molecules are easy to migrate
The patent with application number CN201710268575.5 adds ultra-fine zinc oxide, benzotriazole and n-octyloxybenzophenone as light-shielding agents to make PVC have good ultraviolet absorption function, but the added benzotriazole Azole is easy to migrate to the surface, and n-octyloxybenzophenone has poor light stability and is easy to be oxidized

Method used

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  • A kind of medical PVC broad-band light-shielding granular material and its preparation method and application
  • A kind of medical PVC broad-band light-shielding granular material and its preparation method and application
  • A kind of medical PVC broad-band light-shielding granular material and its preparation method and application

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Experimental program
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Effect test

Embodiment approach

[0085] As a preferred embodiment, the antioxidant is n-octadecyl β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate.

[0086] In this application, the Cu-coordination polymer can be used not only as an ultraviolet absorber, but also as a small molecule migration inhibitor to inhibit the migration of small molecules such as plasticizers, benzotriazoles, and 1,2-propanediol. The present applicant found that when the weight part of Cu-coordination polymer is less than 0.05 parts, it is difficult to sufficiently absorb ultraviolet rays and suppress the migration of small molecules. As the content of Cu-coordination polymer increases, the light transmittance of PVC pellets decreases gradually in the range of 260-560nm. However, as the amount of Cu-coordination polymer continues to increase, it will cause decolorization of PVC pellets.

[0087] As a preferred embodiment, the Cu-coordination polymer is made from raw materials containing 4-aminopiperidine and 3,3',5,5'-biphenyltetracarb...

Embodiment 1

[0110] This embodiment 1 provides a novel medical PVC broad-band light-shielding pellet, which includes the following components in parts by weight:

[0111]

[0112] The plasticizer is acetyl tributyl citrate, the heat stabilizer is epoxy soybean oil, the lubricant is amino silicone oil, and the antioxidant is β-(3,5-di-tert-butyl- 4-Hydroxyphenyl)propionic acid n-octadecanyl ester, the ultraviolet absorber is benzotriazole, and the auxiliary agent is 1,2-propanediol.

[0113] The amino silicone oil (model: 8040) was purchased from Jinjinle Chemical.

[0114] The molar ratio of 4-aminopiperidine to 3,3',5,5'-biphenyltetracarboxylic acid in the Cu-coordination polymer is: 0.5:1.

[0115] The 4-aminopiperidine, CAS number: 13035-19-3, was purchased from Bailingwei Technology Co., Ltd.

[0116] The 3,3',5,5'-biphenyltetracarboxylic acid, CAS number: 4371-28-2, was purchased from Bailingwei Technology Co., Ltd.

[0117] The preparation method of the PVC wide-band light-shie...

Embodiment 2

[0122] This embodiment 2 provides a novel medical PVC wide-band light-shielding pellet, which includes the following components in parts by weight:

[0123]

[0124] The plasticizer is acetyl tributyl citrate, the heat stabilizer is epoxy soybean oil, the lubricant is hydroxyl silicone oil, and the antioxidant is β-(3,5-di-tert-butyl- 4-Hydroxyphenyl)propionic acid n-octadecanyl ester, the ultraviolet absorber is benzotriazole, and the auxiliary agent is 1,2-propanediol.

[0125] The hydroxy silicone oil was purchased from Shandong West Asia Chemical Industry Co., Ltd.

[0126] The molar ratio of 4-aminopiperidine to 3,3',5,5'-biphenyltetracarboxylic acid in the Cu-coordination polymer is: 0.5:1.

[0127] The preparation method of the PVC wide-band light-shielding pellets is the same as in Example 1.

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Abstract

The invention relates to the technical field of light-shield medical materials, in particular to novel medical PVC broadband light-shield granules, a preparation method thereof and a medical consumable comprising the same. The novel medical PVC broadband light-shield granules comprise PVC resin, a plasticizer, a heat stabilizer, a lubricant, an ultraviolet absorbent, an antioxidant, an additive and a Cu-coordination polymer; the Cu-coordination polymer is prepared from raw materials comprising 4-aminopiperidine and 3,3',5,5'-biphenylteracarboxylic acid. The novel medical PVC granules can shield light within the band range from 260 to 560 nm; light shield range of conventional medical PVC granules is expanded; light light transmissivity is smaller than 8% within the wave band range; thus, the granules can effectively prevent medicines from deteriorating or degenerating in lighting.

Description

technical field [0001] The invention relates to the technical field of light-shielding medical materials, in particular to a novel medical PVC wide-band light-shielding pellet, a preparation method thereof, and a medical consumable containing the PVC wide-band light-shielding pellet. Background technique [0002] The medical plastic industry has attracted much attention for its high added value, high growth rate and broad market potential. By adopting new plastic materials, medical devices can be made safer and more environmentally friendly. PVC plastic has been used as a medical material for many years. It has chemical corrosion resistance, strong resistance to oxidants, reducing agents and strong acids, and is wear-resistant. It is easy to produce, safe to use, and low in cost. [0003] Clinically, many drugs need to be used under dark conditions. Because of the particularity of the structure of the drug, after being irradiated by ultraviolet light, reactions such as deco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L91/00C08L83/08C08L83/04C08K5/11C08K5/053
CPCC08L27/06C08L2205/035C08L91/00C08L83/08C08K5/11C08K5/053C08L83/04
Inventor 王伟其王恩洪路中伟吴维新
Owner 浙江天原医用材料有限公司
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