Sichuan Huili Industry Co., Ltd.

Jinzhi Bai

Hui Zhang

Bin Yan

Yan Jiang

Daiqun Yuan

Daiguo Zhao

Wanling Lan

Xinxing Zhu

Xiaocong Pu

Zhongming Li

Shicai Xiao

The present disclosure discloses the composite film of oral liquid pharmaceutical packaging and the preparation method, the composite film comprises a polyester layer, an aluminum foil layer and a heat-sealing layer; the polyester layer and the aluminum foil layer, and the aluminum foil layer and the heat-sealing layer are both bonded with an adhesive agent; the adhesive agent is an aqueous polyurethane prepared from an aqueous polyurethane emulsion, citric acid, acetic acid and zirconium carbonate amine with a mass ratio of 100:1:1:10˜15. The present disclosure adopts carboxylic acid type aqueous polyurethane emulsion, citric acid, acetic acid and zirconium carbonate amine to prepare aqueous polyurethane, the zirconium metal can form stable complex system with citric acid, acetic acid and aqueous polyurethane emulsion, so that aqueous polyurethane emulsion can be demulsified and cured rapidly, shortening curing time, reducing curing temperature.

Composite film of oral liquid pharmaceutical packaging and preparation method

The present invention discloses a process and device for preparing laser PVC. The device includes an upper transmission roller, a support mechanism, a spraying mechanism, an impurity removal mechanism, and a lower transmission roller; the upper transmission roller is disposed above the lower transmission roller, and the two are configured to implement delivery of a PVC film at a station for preparing a laser layer by spraying; the support mechanism is disposed between the upper transmission roller and the lower transmission roller and is in contact with a back surface of the PVC film, and the spraying mechanism is disposed opposite to the support mechanism; and a curing mechanism is disposed in a fitting manner at the coating position; and the impurity removal mechanism is disposed at a front end of the spraying mechanism.

Process and device for preparing laser PVC

The present invention discloses a film for a medicine packaging and a method of preparing the same. The film for the medicine packaging includes a polymer film layer, a graphene composite layer and a light-curable adhesive, wherein the polymer film layer is bonded with a graphene composite layer by a light-curable adhesive, the graphene composite layer includes multiple graphene layers bonded by the light-curable adhesive; and the light-curable adhesive includes a hyperbranched cationic mussel-imitated polymer including a multi-hydroxylbenzoylbenzamide ene amide monomer, a cationic monomer and a photo-responsive monomer. The present invention provides strong adhesion with reduced adhesive layer, allowing greatly increasing the number of the graphene layers in the graphene composite layer without obvious increase in the total thickness and mass. This can meet the requirements of the medicine packaging material, as it obviously lowers the film's permeation to water vapor and oxygen and significantly enhances the tensile strength.

Film for medicine packaging and method of preparing the same

The present invention discloses a hyperbranched cationic mussel-imitated polymer and a method of preparing the same. The hyperbranched polymer disclosed in the present invention has the excellent mussel-imitated non-selective adhesive property, good biocompatibility and adhesive strength adjustability. The method of the present invention includes the following steps: (A) adding an initiator, a RAFT agent and a first reaction mixture to a vessel containing DMF to form a second reaction mixture; (B) stirring the second reaction mixture until homogenous, and introducing argon to a reaction system to remove oxygen in the reaction system; (C) heating and stirring the second reaction mixture to carry out a reaction; (D) after a product with a desired molecular weight being produced, the reaction system being exposed to air and cooled rapidly in a cold water bath to terminate the reaction; and (E) purifying the product to obtain the hyperbranched cationic mussel-imitated polymer.

Hyperbranched cationic mussel-imitated polymer and method of preparing the same

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Sichuan, China

Jinzhi Bai