Novel film-coated butyl rubber plug

Abstract

Provided is a novel film-coated butyl rubber plug. The novel film-coated butyl rubber plug is prepared from 60-70 parts of brominated butyl rubber, 30-40 parts of calcined kaolin, 3-5 parts of zinc oxide, 89-99 parts of leather, 89-99 parts of phenolic-nitrile rubber copolymers, 66-75 parts of hydrochloric acid, 10-15 parts of ethylenediamine, 100-120 parts of soybean protein, 5-7 parts of urea, 15-20 parts of 50% sodium hydroxide aqueous solution, 40-50 parts of lime water, 400-450 parts of 40% nitric acid aqueous solution, 10-20 parts of floral water, 30-50 parts of flower and plant rhizomes, 5-10 parts of ginseng, 5-10 parts of rhizoma atractylodis macrocephalae, 5-10 parts of rice-grain sprouts, 50-60 parts of water, 5-10 parts of scorched hawthorn fruits, 5-10 parts of medicated leaven, 5-7 parts of radix polygonati officinalis, 9-12 parts of rhizoma arisaematis, 15-18 parts of acorus calamus, 15-18 parts of wood chips and 100-120 parts of tofu water. The novel film-coated butyl rubber plug has the advantages that the rubber plug prepared through the process can make direct contact with medicine, an inner cover of a combined cover can be omitted, puncture force and chip falling probability can be reduced, and besides, cover assembly cost is lowered for a pharmaceutical factory.

Description

Technical field: [0001] The invention relates to the technical field of pharmaceutical rubber manufacturing methods, in particular to a novel butyl rubber-coated rubber stopper. Background technique: [0002] With the development of society, there are more and more types of rubber products used in the medical and health field, such as rubber stoppers for various pharmaceutical bottles, pistons for sterile syringes, sealing rubber seals for injections, hoses, catheters, medical air cushions, sterilization Rubber medical gloves, baby pacifiers, blood transfusion tubes, etc. Ideal medical rubber products not only need to have good physical properties, but also must be non-toxic and chemically inert. In particular, rubber products in the body should have the characteristics of not causing disease, not damaging adjacent tissues, not causing allergies, and having good aging properties. [0003] Under the conditions of high temperature and high pressure, the vulcanization system o...

AI Technical Summary

Problems solved by technology

[0003] Under the conditions of high temperature and high pressure, traditional medical rubber products tend to produce exudates and volatiles that pollute the human body and pharmaceuticals in their vulcanization system, making it difficult to prepare medical rubber products that meet the highest quality standards for pharmaceuticals

Existing medical rubber products and preparation methods thereof have complicated process, poor product environmental protection, weak use safety, and low service life