Fragrant furan resin and its preparing process

A furan resin and fragrance technology, which is applied in the field of polymer compound compositions, can solve problems such as unpleasant odor and affect the normal operation of workers, and achieve the effect of being beneficial to wide application and improving the working environment.

Inactive Publication Date: 2002-11-13
DONGYUAN CHEM PLANT HUANTAI SHANDONG PROV
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to a report by Shanxi Gaoping Chemical Co., Ltd. at the end of 2001, the free formaldehyde content of the casting furan

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

Example Embodiment

[0008] Example 1 A furan resin with a fruity fragrance. The resin contains 0.05% n-butyl acetate by weight. The preparation method is to first react formaldehyde and urea under alkaline conditions for urea-formaldehyde reaction, then add furfuryl alcohol for condensation, and then After neutralization, water washing and dehydration, 0.05% by weight n-butyl acetate is added and mixed uniformly. The content of free formaldehyde in the obtained furan resin is less than or equal to 0.4%.

Example Embodiment

[0009] Example 2 A odorless furan resin, the resin contains 1.00% n-propanol by weight, and the preparation method is to add 1.00% n-propanol by weight to the finished liquid furan resin and mix.

Example Embodiment

[0010] Example 3 For furan resin with aromatic odor, formaldehyde and urea are reacted with urea-formaldehyde under alkaline conditions, then furfuryl alcohol is added for condensation, and then after neutralization, washing and dehydration, 0.50% linalool is added by weight ,well mixed.

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

A fragrant furan resin is prepared through reaction of formaldehyde on urea under the action of alkaline catalyst, adding furfuyl alcohol, condensation reaction, neutrolizing, water washing, dewatering, and them mixing with propaneol, n-butaneol, or volatile aromatic substance, and uniformly mixing. This invention eliminates the peculiar odour of furan resin, improves the operation environment, and benefits its popularization.

Description

technical field [0001] The invention belongs to the composition field of polymer compounds obtained by reactions other than carbon-carbon unsaturated bonds, and in particular relates to a furan resin with aromatic smell. Background technique [0002] Furan resin is a general term for thermosetting resins made of furfuryl alcohol or furfural with a furan ring. Furan resin made of furfuryl alcohol has better heat resistance and corrosion resistance, better mechanical strength and electrical insulation, and The source of raw materials is wide, the production process is simple, and it is widely used in casting, anti-corrosion and other industries. The currently used furan resin is mainly synthesized from formaldehyde, urea and furfuryl alcohol. The content of free formaldehyde in it is usually 1.5% to 2.0%. During the manufacture and use, it emits unpleasant odors such as aldehyde and phenol. According to a report by Shanxi Gaoping Chemical Co., Ltd. at the end of 2001, the fre...

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
IPC IPC(8): C08K5/00C08K5/05C08L61/00C08L63/00
Inventor 王卫东
Owner DONGYUAN CHEM PLANT HUANTAI SHANDONG PROV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap