Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing polyurethane adhesive in use for rubber tiles

A polyurethane adhesive, rubber floor tile technology, applied in the direction of polyurea/polyurethane adhesive, adhesive, adhesive type, etc., can solve problems such as worker and environmental hazards, complex adhesive synthesis process, etc., and achieve tensile strength and breaking elongation. Long-Rate Performance Improvement Effect

Inactive Publication Date: 2005-11-16
BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, both the synthesis process of the adhesive is more complicated, and the phenol released by pyrolysis causes harm to workers and the environment.

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

Embodiment 1

[0022] The raw materials of the polyurethane adhesive used for rubber floor tiles are prepared according to the following weight percentages:

[0023] Polyether diol 9;

[0024] Polyether triol 78;

[0025] Toluene diisocyanate 13;

[0026] Benzoyl chloride 0.2;

[0027] Dimethylethanolamine 0.15.

[0028] After the ratio of raw materials is selected, the specific production process is carried out:

[0029] First, add polyether diol and polyether triol into the reaction kettle, start stirring, then raise the temperature to 45°C, continue stirring for 20 minutes, and then add 90% of the amount of toluene diisocyanate and benzoyl chloride to react Continue to heat up the mixture in the kettle to 80±2°C and react for 90 minutes, add 10% of the remaining amount of toluene diisocyanate, raise the temperature to 90±2°C, stir for 0.5 hours, cool down to 50°C, add dimethylethanolamine, stir for 20 Minutes, when the content of the isocyanate group in the adhesive is 6%-8%, and the...

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 process for preparing the polyurethane adhesive used for rubber floor tile is disclosed. Said polyurethane adhesive features high tension strength and elongation at break, low content of VOC and no phenol.

Description

Technical field [0001] The invention relates to a production technology category of a polyurethane adhesive, in particular to a production technology category of a polyurethane adhesive used for rubber floor tiles. Background technique [0002] At present, the polyurethane rubber floor tiles produced on the market generally use phenol-blocked polyurethane as the adhesive, which is prepared by rapid high-temperature vulcanization on a vulcanizing machine. The synthetic method of this phenol-blocked polyurethane adhesive is divided into two steps. The specific steps are as follows: the first step is to prepare the adduct of toluene diisocyanate and trimethylolpropane; the second step is to use phenol as a blocking agent to block the adduct of toluene diisocyanate and trihydroxymethane. The isocyanate group of this phenol-blocked polyurethane adhesive has been blocked by the blocking agent, and it will not react with the hydroxyl-containing resin at room temperature. It will ...

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): C09J175/08
Inventor 路国忠
Owner BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com