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

Non-solvent single-component water-proof asphalt-base polyurethane paint and its preparing process

A polyurethane waterproof and waterproof coating technology, which is applied in polyurea/polyurethane coatings, asphalt coatings, antifouling/underwater coatings, etc., and can solve problems such as unfavorable environmental protection

Inactive Publication Date: 2003-10-15
BEIJING ACAD OF BUILDING ENG
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the polyurethane waterproof coatings in my country are basically two-component solvent-based products, which are very unfavorable to environmental protection.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-solvent single-component water-proof asphalt-base polyurethane paint and its preparing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] In the present invention, the polyurethane prepolymer synthesized by high molecular weight isocyanate and high molecular weight polyether is used as the main material, and auxiliary materials such as petroleum asphalt, solubilizing aid, stone powder, low viscosity oil, plasticizer and catalyst are added A synthetic moisture-curing coating. Since petroleum asphalt and polyurethane are two polymer substances with different polarities, they cannot be directly miscible. In order to ensure that the product is stable and does not delaminate during storage, the two substances, petroleum asphalt and polyurethane, are mixed macroscopically to achieve the purpose of mixing uniformly by adding a solubilizer. The solid powder sedimentation phenomenon that occurs during the storage of the product can be solved by adding light calcium in addition to selecting solid powder with high fineness. Light calcium can absorb a part of the oily substance and suspend it in it, making the mater...

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 non-solvent single-component water-proof asphalt-base polyurethane paint for underground engineering, bathroom and roof is prepared from polyurethane pre-polymer prepared from macro-molecular isocyanate and macro-molecular polyether, petroleum asphalt, dissolving promoter, rock powder, low-viscosity oil, plasticizer and catalyst. Its advantages are no poison and pollution, easy application and high water-proofing effect.

Description

technical field [0001] The invention belongs to the technical field of polyurethane waterproof coating for building industry. Background technique [0002] Polyurethane waterproof coating is a kind of synthetic polymer waterproof coating, which can be divided into two-component type and one-component type. Two-component construction requires weighing the ingredients and adding a certain amount of volatile solvent to the ingredients, followed by vigorous stirring. The use of volatile solvents can easily cause fires and is very detrimental to environmental protection. The one-component polyurethane waterproof coating is relatively easy to construct, does not need to be mixed and stirred, and does not increase viscosity before painting, which has certain advantages. There are many kinds of single-component polyurethane waterproof coatings abroad, and their physical properties are basically the same as those of two-component products. The one-component polyurethane waterproof...

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): C09D5/16C09D175/04C09D195/00
Inventor 方一平李来全
Owner BEIJING ACAD OF BUILDING ENG
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