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Medicinal halogenated butyl rubber gasket

A halogenated butyl rubber and gasket technology, applied in the field of chemical materials, can solve the problems of increased cost and the risk of puncture and chipping, high cost, complicated production process, etc., and achieves improved drug safety, easy operation, and high product qualification rate. Effect

Inactive Publication Date: 2017-12-15
应城市恒天药业包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pharmaceutical synthetic gasket is usually produced using polyisoprene rubber as the raw material, but polyisoprene rubber cannot directly contact the medicine, and must be used in conjunction with a plastic composite cover, which increases the cost and the risk of puncture and chipping. In the production process of synthetic isoprene gaskets, the post-treatment of conventional gaskets requires silicification. The purpose of silicification is to coat a layer of silicon film on the surface of the gasket to facilitate the packing and capping of the gasket. The production process is complicated. ,higher cost

Method used

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  • Medicinal halogenated butyl rubber gasket
  • Medicinal halogenated butyl rubber gasket
  • Medicinal halogenated butyl rubber gasket

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] A preparation method of a pharmaceutical halogenated butyl rubber gasket as described above, comprising the following steps:

[0022] Step (1): Add the halogenated butyl rubber into the internal mixer and mix for 1-1.5 minutes, then add the active agent, softener and colorant and mix for 1 minute, then add the filler and mix for 2-3 minutes, and finally add the cross-linking agent Mixing agent for 1 to 1.5 minutes, wherein the mixing temperature is 110°C to 150°C and the mixing pressure is 0.4 to 0.6MPa during the entire mixing process; after the mixing is completed, the material is discharged at a temperature of 130 to 140°C;

[0023] Step (2): put the rubber material discharged from the internal mixer into the open mixer, and thinly pass it at 50-60°C for 5-8 minutes, and let it stand for 12-24 hours;

[0024] Step (3): Vulcanize the thinned rubber material to form a sheet, and then go through edge removal, cleaning and packaging to make a finished product.

[0025] ...

Embodiment 1

[0026] Example 1: Pharmaceutical halobutyl rubber gasket

[0027] The raw material of this embodiment consists of:

[0028] Halogenated butyl rubber: brominated butyl rubber, 54 parts; among them, brominated butyl rubber has a viscosity-average molecular weight of 80,000, a Mooney viscosity of ML 1+8 (125°C) 40-70, and a degree of unsaturation of 0.1-3.0 mol%. , The weight content of bromine element is 0.5%-3.0%.

[0029] Filler: a mixture of clay, barium sulfate, white carbon black, and calcium carbonate, 39 parts;

[0030] Cross-linking agent: sulfur, 0.18 parts;

[0031] Active agent: metal oxide, 3 parts;

[0032] Softener: a mixture of silicone oil, vaseline, white oil and polyethylene wax, 2.22 parts;

[0033] Coloring agent: titanium dioxide and carbon black, 1.6 parts.

[0034] The preparation method of this pharmaceutical halogenated butyl rubber gasket is:

[0035] (1) Measure each component raw material by formula;

[0036] (2) Mixing: Control the temperature...

Embodiment 2

[0039] Example 2: Pharmaceutical Halogenated Butyl Rubber Gaskets

[0040] The raw material of this embodiment consists of:

[0041] Halogenated butyl rubber: brominated butyl rubber, 54 parts; among them, brominated butyl rubber has a viscosity-average molecular weight of 80,000, a Mooney viscosity of ML 1+8 (125°C) 40-70, and a degree of unsaturation of 0.1-3.0 mol%. , The weight content of bromine element is 0.5%-3.0%.

[0042] Filler: a mixture of clay, barium sulfate, white carbon black, and calcium carbonate, 39 parts;

[0043] Cross-linking agent: sulfur, 0.15 parts;

[0044] Active agent: metal oxide, 3 parts;

[0045] Softener: a mixture of silicone oil, vaseline, white oil and polyethylene wax, 2.65 parts;

[0046] Coloring agent: titanium dioxide and carbon black, 1.2 parts.

[0047] The preparation method of the pharmaceutical halogenated butyl rubber gasket is the same as in Example 1.

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Abstract

The invention discloses a medicinal halogenated butyl rubber gasket. The medicinal halogenated butyl rubber gasket is prepared from the following raw materials in percentage by weight: 40% to 60% of halogenated butyl rubber, 30% to 50% of a filling agent, 0.1% to 0.5% of a cross-linking agent, 2% to 5% of an activating agent, 2% to 5% of a softening agent and 1% to 3% of a coloring agent. The medicinal halogenated butyl rubber gasket disclosed by the invention can be in direct contact with drugs so that the puncturing probability and the dust falling probability are reduced and the production cost is low.

Description

technical field [0001] The invention belongs to the technical field of chemical materials, and more specifically relates to a pharmaceutical halogenated butyl rubber gasket. Background technique [0002] Pharmaceutical synthetic gasket is a rubber-like elastomer product with a certain shape and size, which is used for bottle mouth seals of plastic and glass products. The pharmaceutical synthetic gasket is usually produced using polyisoprene rubber as the raw material, but polyisoprene rubber cannot directly contact the medicine, and must be used in conjunction with the plastic composite cover, which increases the cost and the risk of puncture and chipping. In the production process of synthetic isoprene gaskets, the post-treatment of conventional gaskets requires siliconization. The purpose of siliconization is to coat a layer of silicon film on the surface of the gasket to facilitate the packing and capping of the gasket. The production process is complicated. ,higher cost...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08L23/06C08L91/06C08L83/04C08K3/34C08K3/30C08K3/36C08K3/26C08K3/06C08K3/22C08K3/04
CPCC08L23/283C08K2003/2241C08K2003/265C08K2003/3045C08L2205/02C08L2205/035C08L23/06C08L91/06C08L83/04C08K3/346C08K3/30C08K3/36C08K3/26C08K3/06C08K3/22C08K3/04
Inventor 王伟胡飞龙庚求
Owner 应城市恒天药业包装有限公司