Composition for preparing non-yellowing soft polyurethane foam, non-yellowing soft polyurethane foam and preparation method of non-yellowing soft polyurethane foam

A technology of soft polyurethane and polyurethane prepolymer, which is applied in the field of preparation of non-yellowing soft polyurethane foam composition, which can solve problems such as insufficient reactivity and difficulty in determining the curing time, achieve excellent anti-light performance, and improve environmental stability Sex, the effect of avoiding foam collapse

Active Publication Date: 2015-10-14
WANHUA CHEM GRP CO LTD
View PDF11 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method adopts a single-step method for production, and the foaming is basically completed within 2-30 m

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
  • Composition for preparing non-yellowing soft polyurethane foam, non-yellowing soft polyurethane foam and preparation method of non-yellowing soft polyurethane foam
  • Composition for preparing non-yellowing soft polyurethane foam, non-yellowing soft polyurethane foam and preparation method of non-yellowing soft polyurethane foam
  • Composition for preparing non-yellowing soft polyurethane foam, non-yellowing soft polyurethane foam and preparation method of non-yellowing soft polyurethane foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The following embodiments will further illustrate the method provided by the present invention, but the present invention is not limited to the listed embodiments, and should also include any other known changes within the scope of the claims of the present invention.

[0045] Preparation of Aliphatic Polyurethane Prepolymer

[0046] Polyol 1: GEP-560 (polyether polyol, Shanghai Gaoqiao Petrochemical, nominal functionality 3, OH value=56mgKOH / g, EO content about 10.0%)

[0047] Polyol 2: 330N (polyether polyol, Tianjin Sanpec, nominal functionality 3, OH value=36mgKOH / g, EO content about 16.0%, primary hydroxyl content about 75.0%)

[0048] Polyol 3: DL-2000 (polyether polyol, Dongda Bluestar, nominal functionality 2, OH value=56mgKOH / g, nominal molecular mass 2000)

[0049] Polyol 4: DL-1000 (polyether polyol, Dongda Bluestar, nominal functionality 2, OH value=112mgKOH / g, nominal molecular mass 1000)

[0050] Polyol 5: Voranol220-260 (polyether polyol, Dow company, n...

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

PropertyMeasurementUnit
Oh valueaaaaaaaaaa
Functionalityaaaaaaaaaa
Functionalityaaaaaaaaaa
Login to view more

Abstract

The invention relates to a composition for preparing non-yellowing soft polyurethane foam. The composition comprises the following components in parts by weight: 80-150 parts of aliphatic polyurethane prepolymer, 100 parts of isocyanate active mixture, 0.8-3 parts of catalyst system, 2-4 parts of water, 0.8-2 parts of surfactant and 0.5-2 parts of stabilizer. The invention also relates to a method for preparing non-yellowing soft polyurethane foam from the composition. The illumination yellowing grade of the foam prepared from the composition of non-yellowing soft polyurethane foam by the preparation method is at least the 4th grade, and the nitrogen oxide smoking resistance grade is at least the 4th grade.

Description

technical field [0001] The invention relates to a composition for preparing non-yellowing flexible polyurethane foam, non-yellowing flexible polyurethane foam and a preparation method thereof. Background technique [0002] Soft polyurethane foam is widely used in industries such as automobiles, clothing, furniture, packaging and medical treatment due to its soft feel, good elasticity, easy availability of raw materials and simple manufacturing methods, such as car seats, chest pads, shoulder pads, Shoes, mattresses, gift packaging, etc. Generally, flexible polyurethane foam is produced using aromatic polyisocyanate such as toluene diisocyanate (TDI) or diphenylmethane diisocyanate (MDI) as a main raw material. However, the foam made of aromatic polyisocyanate is prone to aging under environmental factors such as light and humidity, and the specific performance is that it is easy to turn yellow, which brings troubles to downstream users in manufacturing and use. This is mai...

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): C08G18/75C08G18/48C08G18/32C08G18/22C08G18/24C08J9/08C08G101/00
CPCC08G18/12C08G18/225C08G18/244C08G18/3206C08G18/3281C08G18/4804C08G18/6674C08G18/6681C08G18/755C08G18/758C08G2110/0008
Inventor 刘振东汪波罗永秀齐旺顺
Owner WANHUA CHEM GRP CO LTD
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