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Coating liquid composition, coating liquid, film-coated rubber plug and preparation method of film-coated rubber plug

A technology of composition and coating liquid, applied in the directions of coating, transportation and packaging, type of packaging items, etc., can solve the problems of weak adhesion of film materials, easy film falling off, etc., achieve low surface friction coefficient, reduce particle size, etc. Effects of contamination, reliable biosecurity and biostability

Pending Publication Date: 2022-06-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a coating liquid composition and a coating liquid composition to overcome the problems of weak film adhesion and easy peeling of the film in the prior art, and the defect that the silicone oil residue will be released from the rubber stopper. Liquid and film-coated rubber stopper and preparation method thereof

Method used

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  • Coating liquid composition, coating liquid, film-coated rubber plug and preparation method of film-coated rubber plug
  • Coating liquid composition, coating liquid, film-coated rubber plug and preparation method of film-coated rubber plug
  • Coating liquid composition, coating liquid, film-coated rubber plug and preparation method of film-coated rubber plug

Examples

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Embodiment approach

[0054] According to a preferred embodiment of the present invention, the conditions for the ultraviolet light curing include: the power of the medium pressure mercury lamp is 300-3000W, the irradiation distance is 10-50cm, and the curing time is 10-360s. The power is 1500-2000W, the irradiation distance is 15-30cm, and the curing time is 30-180s. In the present invention, the ultraviolet light curing can be carried out in an inert atmosphere or an oxygen-containing atmosphere, and in order to reduce the production cost, the ultraviolet light curing is carried out in the air. In this preferred embodiment, the rubber stopper cured by ultraviolet light has a lower surface friction coefficient, and has better anti-ultraviolet, chemical resistance and aging resistance.

[0055] Preferably, the material of the rubber stopper to be sprayed is selected from at least one of isoprene rubber, butyl rubber and halogenated butyl rubber.

[0056] According to the present invention, in step...

Embodiment 1

[0089]The material of the film-coated rubber plug in this embodiment is bromobutyl rubber, which includes preparing a coating liquid composition to obtain a coating liquid, coating the coating liquid on the surface of the cleaned and dried rubber plug, and curing the coating A step of.

[0090] Wherein, the composition of the coating composition is: 100 g of ethyl orthosilicate, 176 g of ethanol, 87 g of water, organosilicon (methyltriethoxysilane and diphenyldimethoxysilane, and methyltriethoxysilane) The weight ratio of silane and diphenyldimethoxysilane is 1:1) 200g, coupling agent (KH-570) 100g, H-type mordenite catalyst (silicon-aluminum molar ratio is 13, cylindrical) 1g, Photoinitiator (2-hydroxy 2-methyl-1-phenyl-1-propyl ketone) 25g.

[0091] The preparation process of the film-coated rubber plug of the present embodiment, the specific steps are as follows:

[0092] (1) Carry out contact reaction with ethyl orthosilicate, ethanol, water, organosilicon, coupling agen...

Embodiment 2-7

[0101] This example is to illustrate the use of the coating liquid composition of the present invention to prepare a coating liquid, and the use of the coating liquid to prepare a film-coated rubber stopper.

[0102] The film-coated composition, the coating solution and the film-coated rubber stopper were prepared in the same manner as in Example 1, except that the components and component contents in the film-coated composition, the components in the coating solution and the The component contents and preparation conditions were changed, as shown in Table 1 and Table 2.

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Abstract

The invention relates to the technical field of medicinal rubber plug production, and discloses a coating liquid composition, a coating liquid, a film-coated rubber plug and a preparation method of the film-coated rubber plug, the composition contains an inorganic silicon precursor, ethanol, water, organic silicon and a coupling agent; wherein the preparation method of the silicon film is an ultraviolet light curing method; relative to 100 parts by weight of the inorganic silicon precursor, the content of the ethanol is 80 to 400 parts by weight, the content of the water is 35 to 150 parts by weight, the content of the organic silicon is 80 to 250 parts by weight, the content of the coupling agent is 60 to 220 parts by weight, and the content of the catalyst is 0.01 to 3 parts by weight. The film-coated rubber plug provided by the invention is low in surface friction coefficient, and the coating on the surface of the film-coated rubber plug does not fall off, so that the film-coated rubber plug has better resistance to common drugs such as chlorpromazine hydrochloride.

Description

technical field [0001] The invention relates to the technical field of production of medicinal rubber stoppers, in particular to a coating liquid composition for a film-coated rubber stopper, a coating liquid and a preparation method thereof, a film-coated rubber stopper and a preparation method thereof. Background technique [0002] In the prior art, the rubber stopper is often siliconized, but the technical defect brought by the siliconization process is that after the medicine is filled, it needs to be sterilized with a stopper, and the residual silicone oil will be released from the rubber stopper and dissolved into the medicine; , Silicification will also cause insoluble particles and visible foreign matter to fail the inspection and be reworked or scrapped. [0003] To this end, domestic and foreign scientists have done a lot of work. [0004] CN105907298A discloses a graft type rubber stopper spraying liquid and a method for treating the surface of the rubber stopper...

Claims

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Application Information

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IPC IPC(8): C09D183/02C08J7/04A61J1/14C08L23/28
CPCC09D183/02C08J7/0427A61J1/14C08J2323/28C08J2483/02
Inventor 李建华安婷婷王镭钟林宋小飞
Owner CHINA PETROLEUM & CHEM CORP
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