BPS product and method for preparing BPS product by virtue of bromine chloride method
A bromine chloride method and bromine chloride technology, applied in the field of fine chemicals, can solve the problems of unstable bromination reaction rate, low bromination reaction substitution efficiency, easy yellowing of products during use, and achieve fast reaction rate and Stable, shortened chlorination time, high bromine content effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0042] Embodiment 1: the preparation method of the bromine chloride method of a kind of BPS product
[0043] The preparation method of the bromine chloride method of a kind of BPS product of the present embodiment, comprises the following steps:
[0044] Step 1. Raw material preparation:
[0045] (1) Preparation of anhydrous dichloromethane: put 360g of dichloromethane in a four-necked flask, add 1.5g of phosphorus pentoxide, stir for 5-6 hours, and check that the water content is less than 0.03%;
[0046] (2) Vaporization of liquid chlorine: After the liquid chlorine in the steel cylinder is vaporized by the vaporization pool, it is stored in the buffer tank for future use.
[0047] Step 2, synthetic bromine chloride:
[0048] Add 75g of dichloromethane and 50g of bromine into the four-necked bottle, lower the temperature to -10~-13°C, and then slowly inject 23g of chlorine gas into the four-necked bottle. After the chlorine gas is added, keep the low temperature for 10 min...
Embodiment 2
[0054] Embodiment 2: the preparation method of the bromine chloride method of a kind of BPS product
[0055] Step 1. Raw material preparation:
[0056] (1) Preparation of anhydrous dichloromethane: put 360g of dichloromethane in a four-necked flask, add 1.5g of phosphorus pentoxide, stir for 5-6 hours, and check that the water content is less than 0.03%;
[0057] (2) Vaporization of liquid chlorine: After the liquid chlorine in the steel cylinder is vaporized by the vaporization pool, it is stored in the buffer tank for future use.
[0058] Step 2, synthetic bromine chloride dispersion:
[0059](1) Add 75g of dichloromethane and 50g of bromine into the four-necked bottle, cool down to -10~-13°C, then slowly inject 23g of chlorine gas into the four-necked bottle, after the chlorine gas is added, keep the low temperature and keep warm for 10 minutes , then transferred to the constant pressure dropping funnel with jacket insulation to obtain bromine chloride solution;
[0060]...
Embodiment 3
[0071] Embodiment 3: a kind of BPS product
[0072] The BPS product of Example 2 of the present invention and antimony trioxide are made into a composite flame retardant according to a certain ratio according to a conventional method, and the composite flame retardant is added to engineering plastics, which has good compatibility, is not easy to yellow, and is flame retardant The effect is good. After adding, the flame retardant level reaches the V-0 level standard, and has little effect on the mechanical properties of plastics. details as follows:
[0073] (1) 22% composite flame retardant is added to Pbt, which can reach the UL94V-0 level addition standard;
[0074] (2) 16% compound flame retardant is added to the pet, which can reach the UL94V-0 level addition standard;
[0075] (3) 23% composite flame retardant is added to PA6, which can meet the UL94V-0 standard;
[0076] (4) 14% compound flame retardant is added to PA66, which can reach the UL94V-0 level addition stan...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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