Flame retardant flexible polyurethane foaming plastic

A soft polyurethane and foam technology, applied in the field of soft polyurethane foam, can solve problems such as excessive smoke, toxic gas, easy migration, etc., achieve environmental protection costs, simplify post-processing processes, and reduce costs

Active Publication Date: 2013-10-23
常熟国和新材料有限公司
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the flame retardants used to make polyurethane foam contain halogens, but due to the defects of easy migration, unsustainable flame retardancy, and more smoke and toxic gases (hydrogen halides) when burning, flame retardants are gradually becoming non-toxic. Halogenation Development

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
  • Flame retardant flexible polyurethane foaming plastic
  • Flame retardant flexible polyurethane foaming plastic
  • Flame retardant flexible polyurethane foaming plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1: the preparation of the hydroxyl polyphosphate used in the present invention

[0055] ① Add 153.5 grams (1 mole) of phosphorus oxychloride to the reaction device (mainly including reaction bottle, stirring device, dropping device, heating temperature control and gas absorption device), and then dropwise add 94 grams of pre-melted phenol (1 mole ), the total dropping time is about 1 hour. After the dropping is completed, react at 70-80°C for 2 hours. During this period, introduce the generated hydrogen chloride into the absorption device equipped with water until the concentration of hydrochloric acid no longer increases;

[0056] ② Slowly add 68.2 grams of ethylene glycol (1.1 moles) into the kettle, dropwise for 0.25 hours, control the temperature of the material at 80-90°C and continue the reaction for 2 hours, during which the generated hydrogen chloride is introduced into the absorption device filled with water , until the concentration of hydrochloric ...

Embodiment 2

[0059] Embodiment 2: the preparation of the hydroxyl polyphosphate used in the present invention

[0060] ① Add 153.5 grams (1 mole) of phosphorus oxychloride to the reaction device (mainly including reaction bottle, stirring device, dropping device, heating and temperature control temperature gas absorption device), and dropwise add 108.1 grams of benzyl alcohol (1 mole). The dropping time is 2 hours. After the dropping is completed, react at 30-40°C for 1 hour, and introduce the generated hydrogen chloride into an absorption device equipped with water until the concentration of hydrochloric acid does not increase any more;

[0061] ② Slowly add 68.2 grams of ethylene glycol (1.1 moles) into the kettle, dropwise for 0.5 hours, control the temperature of the material at 80-90°C and continue the reaction for 2 hours, during which the generated hydrogen chloride is introduced into the absorption device filled with water , until the concentration of hydrochloric acid no longer in...

Embodiment 3

[0064] Embodiment 3: the preparation of organophosphate of the present invention

[0065] ① First add 153.5 grams (1 mole) of phosphorus oxychloride to the reaction device (mainly including reaction flask, stirring device, dropping device, heating and temperature control and gas absorption device), and drop 130.2 grams of octanol (1 mole), The total dropping time is 3 hours. After the dropping is completed, react at 30-40°C for 1.5 hours. During this period, introduce the generated hydrogen chloride into the absorption device equipped with water until the concentration of hydrochloric acid no longer increases;

[0066] ② Then slowly add 152.2 grams of 1,2-propanediol (2 moles) into the kettle, dropwise for 0.75 hours, control the temperature of the material at 80-90°C and continue the reaction for 1 hour, during which time the generated hydrogen chloride is introduced into the tank filled with water absorption device until the concentration of hydrochloric acid no longer incre...

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
hydroxyl valueaaaaaaaaaa
hydroxyl valueaaaaaaaaaa
hydroxyl valueaaaaaaaaaa
Login to view more

Abstract

The invention provides flexible polyurethane foaming plastic with flame resistance. A fire retardant used is a hydrophobic polyphosphoester fire retardant. Thus, properties of the product are guaranteed, and requirements on technology simplification, cost reduction and safe and nontoxic product are met.

Description

technical field [0001] The invention relates to a flexible polyurethane foam, in particular to a flame-retardant flexible polyurethane foam. Background technique [0002] Flexible polyurethane foam is widely used in furniture, auto parts and other fields as cushioning and filling materials. Flame retardants play an important role in reducing fire risks and ensuring the safety of life and property. At present, most of the flame retardants used to make polyurethane foam contain halogens, but due to the defects of easy migration, unsustainable flame retardancy, and more smoke and toxic gases (hydrogen halides) when burning, flame retardants are gradually becoming non-toxic. Halogenated development. [0003] In the process of preparing flame-retardant flexible polyurethane foam plastics in the present invention, a new reactive phosphorus-based flame retardant—hydrophobic polyphosphate is used. In general, polyphosphate is highly hydrophilic, and it is difficult to remove by-p...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C07F9/11C07F9/12C08G101/00
Inventor 徐大勇邹明国毛维友
Owner 常熟国和新材料有限公司
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