Supercharge Your Innovation With Domain-Expert AI Agents!

Low-temperature hot-seal adhesive and preparation method thereof

A low-temperature heat-sealing and resin technology, applied in the direction of adhesives, epoxy glue, adhesive types, etc., can solve the problems that heat-sealing glue cannot meet the requirements, and achieve the effects of high yield, reasonable process, and easy operation

Active Publication Date: 2010-12-15
JIANGSU ZHONGJIN MATAI MEDICINAL PACKAGING
View PDF3 Cites 29 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the case where the packaged medicine is prone to denaturation under high temperature conditions, this type of heat-sealing adhesive cannot meet the requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] A kind of preparation method of above-mentioned low-temperature heat-sealing glue, the technological step of preparation is as follows,

[0036] (1) Put the solvent into the reaction kettle and fully stir;

[0037] (2) Keep stirring, put the auxiliary resin, the main resin, and the surface modifier into the reaction kettle in turn, and raise the temperature to below 60°C, and keep stirring at the temperature for about 1.5 hours;

[0038] (3) Keep stirring, put the plasticizer into the reaction kettle, and stir for 15 to 25 minutes;

[0039] (4) Cooling and filtering to obtain low-temperature heat-sealing glue.

Embodiment 1

[0041] Example 1: In a 1000-liter small reactor with stirring and reflux, add 745 kg of mixed solvents such as butanone and ethyl acetate at 50 ° C; keep stirring, first add 50 kg of vinyl chloride copolymer resin; add after 20 minutes 180kg of plastic polyurethane resin and 20kg of polyester resin; after stirring and refluxing for 1.5 hours, add 5kg of polyol ester, after stirring and refluxing for 20 minutes, cool and filter.

Embodiment 2

[0042] Example 2: In a 1000-liter reactor with stirring and reflux, add 720 kg of mixed solvents such as butanone, butyl acetate, and isopropanol at 50 ° C; keep stirring, and add 60 kg of epoxy resin first; After 20 minutes, add 150 kg of plastic acrylic resin and 50 kg of plastic polyurethane resin; stir and reflux for 1.5 hours, then add 15 kg of citrate, stir and reflux for 15 minutes, then cool and filter.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a low-temperature hot-seal adhesive, which consists of the following raw materials in percentage by weight: 10 to 30 percent of main resin, 5 to 15 percent of auxiliary resin, 0.2 to 3 percent of plasticizer, 0.2 to 1 percent of surface modifier and 60 to 80 percent of solvent. The main resin is one or two of a polyester resin, a plastic polyurethane resin and a plastic acrylic resin with the molecular size of between 15,000 and 25,000; and the auxiliary resin is one of a vinyl chloride copolymer resin, a plastic polyurethane resin and an epoxy resin with the molecular size of between 10,000 and 20,000. The low-temperature hot-seal adhesive has the advantages that: 1, the adhesive has low-temperature hot-seal property, and the hot-seal strength is not lower than that of a common hot-seal adhesive for an aluminum foil; and 2, the adhesive has hot-seal diversification, can seal PVC, PC and PS sheets, and meets the requirement on hot-seal strength.

Description

technical field [0001] The invention relates to an inner layer adhesive used for covering aluminum foil for blister packaging, in particular to a low-temperature heat-sealing adhesive and a preparation method thereof. Background technique [0002] The existing commonly used covering aluminum foil for blister packaging is based on pure aluminum foil, and a protective layer and a printing layer or only a protective layer are attached to the outer surface of the aluminum foil; a printing layer and a heat-sealing adhesive layer are attached to the inner surface of the aluminum foil layer. Or only heat seal adhesive layer. The sealing temperature of this aluminum foil heat-sealing adhesive is 150°C, and generally only PVC sheets can be sealed. For the case where the packaged medicine is prone to denaturation under high temperature conditions, this type of heat-sealing adhesive cannot meet the requirements. Contents of the invention [0003] The technical problem to be solved ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09J167/00C09J175/04C09J133/00C09J127/06C09J163/00B65D65/38
Inventor 周立军伏阳徐根华单宁何建中陈强张红军陈庆文周正中
Owner JIANGSU ZHONGJIN MATAI MEDICINAL PACKAGING
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com