Patch adhesive and preparation method thereof

By prepolymerizing saturated bio-based polyester polyol with molecular weight between 2000 and 4000 and isocyanate, and environmentally friendly patch adhesives are prepared through bio-based small-molecular diol chain extension and functional acrylate monomer terminal blocking, the problems of poor dry performance and large heat exogenous volume of existing patch adhesives are solved, and environmentally friendly and high-performance patch adhesives are achieved.

CN119662191APending Publication Date: 2025-03-21NANXIONG YALTON CHEM CO LTD
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Patent Information

Application Number
CN202411974949.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

The existing patch adhesive surface has poor dry performance, high heat release during light curing, and the raw materials are derived from petroleum-based, which is not environmentally friendly and difficult to meet the national carbon emission requirements.

Method used

Saturated bio-based polyester polyol with a molecular weight of 2000~4000 and isocyanate were prepolymerized, chain extension was extended by bio-based small molecule diol, and terminal blocked with functional acrylate monomer, photoinitiator and bio-based monomer were added to prepare an environmentally friendly patch glue.

Benefits of technology

It improves the surface dry performance of the patch adhesive, reduces heat release during light curing, ensures painlessness in use, and meets environmental protection standards, meeting special needs of the nail art market.

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Abstract

The invention relates to the field of nail polish glue, in particular to patch glue and a preparation method thereof. The patch adhesive provided by the invention is a non-sticky patch adhesive for LED curing, and is prepared by the following steps: pre-polymerizing saturated bio-based polyester polyol with the molecular weight of 2000-4000 and isocyanate, carrying out chain extension by using bio-based micromolecular alcohol, finally carrying out end capping by using a functional acrylate monomer, and adding a photoinitiator and a bio-based monomer. The patch adhesive can effectively improve the surface drying performance of nail tips and nails, is small in heat release and free of pain during application, meets the special requirements of the manicure market, and meets the environmental protection standard at the same time.
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