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High-sealing-performance medicinal synthetic-polyisoprene pad and preparation method thereof

A polyisoprene, high-sealing technology, applied in the field of high-sealing pharmaceutical synthetic polyisoprene gasket and its preparation, can solve problems such as liquid leakage, achieve fast vulcanization speed and increase resilience , the effect of smooth combination

Inactive Publication Date: 2017-08-11
CHONGZHOU JUNJIAN PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a high-seal pharmaceutical synthetic polyisoprene gasket and a preparation method thereof, which can effectively solve the problem of drugs produced when using soft bags and upright polypropylene infusion bags. Liquid Leakage Problem

Method used

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  • High-sealing-performance medicinal synthetic-polyisoprene pad and preparation method thereof
  • High-sealing-performance medicinal synthetic-polyisoprene pad and preparation method thereof
  • High-sealing-performance medicinal synthetic-polyisoprene pad and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A high-tightness pharmaceutical synthetic polyisoprene gasket, comprising the following components by weight:

[0031] 100 parts of base rubber, 3.2 parts of soluble sulfur, 0.6 parts of zinc dimethyl dithiocarbamate, 4 parts of zinc oxide and 14.5 parts of talcum powder.

[0032] The preparation method of the above-mentioned high-tightness medicinal synthetic polyisoprene gasket comprises the following steps:

[0033] (1) Mixing of rubber materials: Put the basic rubber in the internal mixer for 3 minutes, add activator and filler to continue the internal mixing for 4 minutes, and then transfer the internally mixed rubber to the open mixer. If it causes scorching, it needs to be cooled on the open mill for 4 minutes, and finally add the vulcanizing agent and vulcanization accelerator, and start the refining for 6 minutes.

[0034] (2) Sheeting: After the mixed rubber material is parked for 4 hours, it is made into a 2mm thick sheet through a roller press;

[0035] (3...

Embodiment 2

[0042] A high-tightness pharmaceutical synthetic polyisoprene gasket, comprising the following components by weight:

[0043] 100 parts of base rubber, 2.8 parts of insoluble sulfur, 0.5 parts of zinc dimethyl dithiocarbamate, 4 parts of zinc oxide and 8 parts of talcum powder.

[0044] The preparation method of the above-mentioned high-tightness medicinal synthetic polyisoprene gasket comprises the following steps:

[0045] (1) Mixing of rubber materials: put the basic rubber in the internal mixer for 4 minutes, add activator and filler to continue the internal mixing for 5 minutes, and then transfer the internally mixed rubber to the open mixer. If it causes scorching, it needs to be cooled on the open mill for 4 minutes, and finally add the vulcanizing agent and vulcanization accelerator, and start the refining for 6 minutes.

[0046] (2) Sheeting: After the mixed rubber material is parked for 4 hours, it is made into a 2mm thick sheet through a roller press;

[0047] (3)...

Embodiment 3

[0054] A high-tightness pharmaceutical synthetic polyisoprene gasket, comprising the following components by weight:

[0055] 100 parts of base rubber, 2.8 parts of insoluble sulfur, 0.6 parts of zinc diethyldithiocarbamate, 4 parts of zinc oxide and 8 parts of light calcium carbonate.

[0056]The preparation method of the above-mentioned high-tightness medicinal synthetic polyisoprene gasket comprises the following steps:

[0057] (1) Mixing of rubber materials: Put the basic rubber in the internal mixer for 4 minutes, add activator and filler to continue the internal mixing for 6 minutes, and then transfer the internally mixed rubber to the open mixer. If it causes scorching, it needs to be cooled on the open mill for 3 minutes, and finally add the vulcanizing agent and vulcanization accelerator, and start the kneading for 6 minutes. After two times, the tablet is removed to complete the rubber mixing;

[0058] (2) Sheeting: After the mixed rubber material is parked for 4 h...

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Abstract

The invention discloses a high-sealing-performance medicinal synthetic-polyisoprene pad. The high-sealing-performance medicinal synthetic-polyisoprene pad comprises, by weight, 100 parts of basic rubber, 2.5-3.5 parts of vulcanizing agent, 0.5-0.8 part of vulcanization accelerator, 3-5 parts of activating agent and 6-15 parts of filling agent. A preparation method of the high-sealing-performance medicinal synthetic-polyisoprene pad includes the steps of firstly, mixing the rubber materials; secondly, discharging a pad material; thirdly, vulcanizing; fourthly, punching; fifthly, performing alkaline extraction; sixthly, pickling; seventhly, performing fine cleaning; eighthly, silicifying. The high-sealing-performance medicinal synthetic-polyisoprene pad and the preparation method thereof have the advantages that the vulcanizing agent and the vulcanization accelerator used by the method are nontoxic, applicable to the medical field and high in safety, and the high-sealing-performance medicinal synthetic-polyisoprene pad is fast in vulcanizing, high in crosslinking degree, good in elasticity and excellent in sealing performance; when 100ml of medicine is respectively added into soft infusion bags (2000 bags) and vertical polypropylene infusion bags (2000 bags), no liquid seeps from medicine adding holes, and sealing requirements in clinical use can be satisfied.

Description

technical field [0001] The invention belongs to the technical field of accessories in polypropylene combined caps for plastic infusion containers, and in particular relates to a high-tightness medicinal synthetic polyisoprene gasket and a preparation method thereof. Background technique [0002] With the widespread use of infusion therapy, the form of infusion packaging has changed from glass packaging to plastic packaging, from open to fully enclosed. Fully-sealed infusion packaging mainly includes soft bags and stand-up polypropylene infusion bags. During the infusion process, the soft bag and the upright polypropylene infusion bag can shrink automatically, and the liquid can be completely discharged under the action of gravity. Because there will be no secondary pollution caused by air entry, they are widely used in the market. However, due to the self-shrinkage of the soft bag and the upright polypropylene infusion bag, the pressure inside the bag is relatively high. Af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08K13/02C08K3/06C08K5/39C08K3/22C08K3/34C08K3/26C08J7/04B29D7/01
CPCB29D7/01C08J7/0427C08J2309/00C08J2483/04C08K3/06C08K3/22C08K3/26C08K3/34C08K5/39C08K13/02C08K2003/2296C08K2003/265C08L2203/02C08L2312/00C08L9/00
Inventor 赵立品何柯向章马百钧佘佑廷梁劲杨艳梅何伟成
Owner CHONGZHOU JUNJIAN PLASTIC CO LTD
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