CN112250985A - Halogen-free flame-retardant ABS composition and preparation method and application thereof - Google Patents
Halogen-free flame-retardant ABS composition and preparation method and application thereof Download PDFInfo
- Publication number
- CN112250985A CN112250985A CN202011121432.XA CN202011121432A CN112250985A CN 112250985 A CN112250985 A CN 112250985A CN 202011121432 A CN202011121432 A CN 202011121432A CN 112250985 A CN112250985 A CN 112250985A
- Authority
- CN
- China
- Prior art keywords
- halogen
- free flame
- retardant abs
- abs composition
- flame retardant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/5399—Phosphorus bound to nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5317—Phosphonic compounds, e.g. R—P(:O)(OR')2
- C08K5/5333—Esters of phosphonic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a halogen-free flame-retardant ABS composition, which comprises the following components in parts by weight: 43-79.8 parts of ABS resin, 12-25 parts of phosphazene compound, 10-30 parts of phosphoric acid compound and 0.2-2 parts of processing aid. In the formula of the halogen-free flame-retardant ABS composition, the phosphazene compound and the phosphoric acid compound are compounded and exert a synergistic effect, so that the obtained halogen-free flame-retardant ABS composition has the advantages of no halogen of V-0, high technical value of mass production application, excellent mechanical property and good material appearance, and can meet the material technical requirements of various fields of household appliances, electronic and electrical products, office supplies and the like. Meanwhile, the invention also discloses a preparation method and application of the halogen-free flame-retardant ABS composition.
Description
Technical Field
The invention belongs to the technical field of ABS composite materials, and particularly relates to a halogen-free flame-retardant ABS composition, and a preparation method and application thereof.
Background
ABS materials are commonly used as shells of household appliance products, and the products can cause fire due to ignition caused by overheating, electric leakage, aging and the like, thereby causing great threat to the lives of people. The flame-retardant ABS can realize V-0, V-1 and V-2 grades at present, only the V-2 grade can realize halogen-free flame retardance, and the V-0 grade can only realize brominated flame retardance at present, namely, the flame-retardant ABS material has halogen flame retardance and does not have a halogen-free V-0 flame-retardant system. The brominated flame-retardant ABS material can generate large smoke and toxic gas in the combustion process, so that the brominated flame-retardant ABS material can cause great harm to human health, and the halogen-free flame-retardant system has small harmfulness in the combustion process, so that the brominated flame-retardant ABS material is a development trend of future flame-retardant materials and also becomes a research hotspot all the time. With the continuous upgrade of environmental protection laws and regulations, halogen-free flame retardant materials will inevitably replace halogen-containing flame retardant materials in the future, and become a consensus in the material field.
ABS belongs to terpolymer, contains polybutadiene rubber component in the chemical structure, has inflammability, and is difficult to form carbon in the combustion process compared with engineering materials, so that the realization of high-grade flame retardant property has greater technical difficulty, only can realize halogen V-0 or 5VA flame retardant grade at present, does not have halogen-free V-0 flame retardant ABS material which has excellent mechanical property and can meet the application requirement. In the prior art, although the halogen-free V-0 grade can be realized in the flame retardant grade, the halogen-free V-0 flame retardant ABS has some performance defects, such as poor toughness, low glossiness, poor mechanical property and the like, and the research of the halogen-free V-0 flame retardant ABS only stays in the academic research stage and is far away from the industrial application.
Disclosure of Invention
Based on the above, the invention aims to overcome the defects of the prior art and provide a halogen-free flame retardant ABS composition.
In order to achieve the purpose, the invention adopts the technical scheme that: a halogen-free flame-retardant ABS composition comprises the following components in parts by weight: 43-79.8 parts of ABS resin, 12-25 parts of phosphazene compound, 10-30 parts of phosphoric acid compound and 0.2-2 parts of processing aid.
The composite flame retardant adopts the compounding synergism of the phosphazene compound and the phosphate compound, achieves the halogen-free V-0 flame retardant grade under the combined action of two flame retardants, has better appearance and mechanical property and good processing property, and is suitable for the application fields of household appliances, office supplies and the like.
Preferably, the weight ratio of the phosphoric acid compound to the phosphazene compound is: phosphoric acid compound: phosphazene compound (1-1.5): 1. the compounding of the above proportions can achieve better synergistic flame retardant effect.
Preferably, the ABS resin has a relative density of 1.03-1.08g/cm3(ii) a In the ABS resin, the polybutadiene accounts for 12-25% by weight.
Preferably, the phosphazene compound has the following structural formula:
wherein R is1、R2、R3、R4、R5、R6Are the same, and R1、R2、R3、R4、R5、R6Is selected from-SiH3、--SiCl3、SiHCl2、-SiHO3、-((CH3)5Si)2O、-SiOH2、-NHR、-NH2、-NR2、-NCH、-NO3、-NCO、-N(CH3)、-N2Cl、-C6H5One kind of (1).
More preferably, the phosphazene compound, R1、R2、R3、R4、R5、R6is-C6H5or-NH2. The chemical groups are easy to form active free radicals at high temperature to capture combustible free radicals and inhibit combustion chain reaction.
Preferably, the phosphate compound has the following structural formula:
wherein R is1、R2、R3Are the same, and R1、R2、R3Is selected from-SiH3、-SiCl3、SiHCl2、-SiHO3、-((CH3)5Si)2O、-NHR、-NH2、-NR2、-NCH、-NO3、-NCO、-N(CH3)、-N2Cl、-C2H5、-CH3One kind of (1).
More preferably, R in the phosphate compound1、R2、R3Are all-CH3。
Preferably, the processing aid comprises one or more of an antioxidant, a lubricant, an anti-drip agent;
the antioxidant is selected from one or more of alkyl monophenol antioxidant, alkyl polyphenol antioxidant and thiobisphenol antioxidant; the lubricant is selected from one or more of stearamide lubricants, EBS B50, EB-FF, EBS P400 and WK 1890; the anti-dripping agent is one or more selected from polytetrafluoroethylene compounds, SN80-SA7 and POLY TS 30A.
Meanwhile, the invention also discloses a preparation method of the halogen-free flame-retardant ABS composition, which comprises the following steps:
stirring and mixing all the components at a high speed to obtain a premix; and (3) feeding the premix into a double-screw extruder, extruding, cooling with water, and granulating to obtain the halogen-free flame-retardant ABS composition.
In addition, the invention also discloses application of the halogen-free flame-retardant ABS composition in household appliance products.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, in the formula of the halogen-free flame-retardant ABS composition, through the compounding of the phosphazene compound and the phosphoric acid compound, the phosphazene compound and the phosphoric acid compound play a synergistic effect, the obtained halogen-free flame-retardant ABS composition has no halogen V-0, has the technical value of mass production application, excellent mechanical property and good material appearance, and can meet the material technical requirements in various fields of household appliances, electronic and electrical products, office supplies and the like.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples.
The preparation method of the halogen-free flame-retardant ABS composite material in the embodiment and the comparative example of the invention comprises the following steps:
uniformly mixing all the components in a high-speed stirring mixer to obtain a premix; feeding the premix into a double-screw extruder, extruding, cooling with water, and granulating to obtain the halogen-free flame-retardant ABS composition; wherein the temperature of each section of screw of the double-screw extruder from a feed inlet to a machine head is respectively 80 ℃ in a first area, 160 ℃ in a second area, 180 ℃ in a third area, 190 ℃ in a fourth area, 190 ℃ in a fifth area, 190 ℃ in a sixth area, 180 ℃ in a seventh area, 180 ℃ in an eighth area, 180 ℃ in a ninth area, 200 ℃ in the machine head, the rotating speed of the screw is 350rpm, and the length-diameter ratio of the double-screw extruder is 40: 1.
in the embodiment of the application, the structural formula of the phosphazene compound is as follows:
the structural formula of the phosphate compound is as follows:
the test standards for each property in examples and comparative examples are shown in table 1:
TABLE 1 measurement standards for the respective Properties
The examples and comparative examples of the present invention employ, but are not limited to, the following raw materials:
ABS resin 1: styrene-acrylonitrile-butadiene copolymers; the relative density is 1.04g/cm3The polybutadiene accounts for 18-20 wt%, and the manufacturer is Jilin petrochemical and has a mark of ABS 0215A;
ABS resin 2: styrene-acrylonitrile-butadiene copolymer having a relative density of 1.03g/cm3The polybutadiene accounts for 55-70 wt%, and is prepared from Korea Jinhu and has the trademark of ABS HR 181;
phosphazene compound 1: in the structural formula R1、R2、R3、R4、R5、R6Are all-C6H5The manufacturer is Hubei Yuancheng Sai Chu science and technology company;
phosphazene compound 2: in the structural formula R1、R2、R3、R4、R5、R6Are all-NH2Commercially available;
phosphazene compound 3: in the structural formula R1、R2、R3、R4、R5、R6Are all-N (CH)3) Commercially available;
phosphoric acid compound 1: in the structure of R1、R2、R3Are all-CH3Group, Shanghai Michelin Biochemical technology, Inc.;
phosphoric acid compound 2: in the structure of R1、R2、R3Are all-C2H5Group, bailingwei technologies ltd, beijing;
processing aid: (the weight ratio of the antioxidant to the lubricant to the anti-dripping agent is 1:3:1)
Antioxidant: alkyl monophenol antioxidant Irganox 1076 from Pasteur company is selected;
lubricant: EBS B50, Changzhou Coisal, was selected;
anti-dripping agent: guangzhou entropy energy Inc., SN80-SA 7.
The invention sets the components and performance data in examples 1-10 and comparative examples 1-4, and the specific examples 1-10 and comparative examples 1-4 are shown in table 2:
TABLE 2 Components and Performance data for examples 1-10 and comparative examples 1-4
As can be seen from Table 2, compared with comparative examples 1 to 4, examples 1 to 9 of the present application all had better tensile strength, bending strength, notched Izod impact strength, gloss and vertical burning properties; comparative example 1 does not contain the phosphazene compound and the phosphoric acid compound of the application, comparative examples 2 and 3 only contain one of the phosphazene compound and the phosphoric acid compound, comparative example 4 contains the phosphazene compound and the phosphoric acid compound but the content of the phosphazene compound and the phosphoric acid compound is not in the range of the application, and comparative examples 1 to 4 have tensile strength, bending strength, izod notched impact strength, glossiness and vertical burning performance which are not as good as those of example 1;
comparing examples 1 to 4, it can be seen that in examples 1, 2 and 4, the weight ratio of the phosphoric acid compound to the phosphazene compound is (1 to 1.5): 1, in example 3, the weight ratio of the phosphoric acid compound to the phosphazene compound is not (1-1.5): 1, the tensile strength, flexural strength, notched izod impact strength and gloss in example 3 were all inferior to those in examples 1, 2 and 4.
Example 5 is compared with example 1It is understood that the ABS resin in example 5 does not satisfy the requirement of [ relative density of 1.03 to 1.08g/cm ]3Polybutadiene is 12-25% by weight, and the tensile strength, bending strength and glossiness of the polybutadiene are all different from those of the polybutadiene in example 1.
Comparing examples 6 and 7 with example 1, it can be seen that R in the phosphazene compound of example 7 is1、R2、R3、R4、R5、R6is-N (CH)3) The tensile strength, flexural strength, izod notched impact strength and gloss were all inferior to those of examples 6 and 1.
By comparing example 8 with example 1, it can be seen that R in the phosphoric acid compound in example 8 is1、R2、R3is-C2H5The tensile strength, flexural strength, notched Izod impact strength and gloss were all different from those of example 1.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The halogen-free flame-retardant ABS composition is characterized by comprising the following components in parts by weight: 43-79.8 parts of ABS resin, 12-25 parts of phosphazene compound, 10-30 parts of phosphoric acid compound and 0.2-2 parts of processing aid.
2. The halogen-free flame retardant ABS composition according to claim 1 wherein the weight ratio of the phosphoric acid compound to the phosphazene compound is: phosphoric acid compound: phosphazene compound (1-1.5): 1.
3. the halogen-free flame retardant ABS composition according to claim 1 wherein the ABS resin has a relative density of 1.03 to 1.08g/cm3(ii) a In the ABS resin, the polybutadiene accounts for weight percent12-25％。
4. The halogen-free flame retardant ABS composition according to claim 1 wherein the phosphazene compound has the following structural formula:
wherein R is1、R2、R3、R4、R5、R6Are the same, and R1、R2、R3、R4、R5、R6Is selected from-SiH3、-SiCl3、SiHCl2、-SiHO3、-((CH3)5Si)2O、-SiOH2、-NHR、-NH2、-NR2、-NCH、-NO3、-NCO、-N(CH3)、-N2Cl、-C6H5One kind of (1).
5. The halogen-free flame retardant ABS composition according to claim 4 wherein the phosphazene compound, R1、R2、R3、R4、R5、R6is-C6H5or-NH2。
6. The halogen-free flame retardant ABS composition according to claim 1 wherein the phosphoric acid compound has the following structural formula:
wherein R is1、R2、R3Are the same, and R1、R2、R3Is selected from-SiH3、-SiCl3、SiHCl2、-SiHO3、-((CH3)5Si)2O、-NHR、-NH2、-NR2、-NCH、-NO3、-NCO、-N(CH3)、-N2Cl、-C2H5、-CH3One kind of (1).
7. The halogen-free flame retardant ABS composition according to claim 6 wherein in the phosphoric acid compound R1、R2、R3is-CH3。
8. The halogen-free flame retardant ABS composition according to claim 1 wherein the processing aid comprises one or more of an antioxidant, a lubricant, an anti-drip agent;
the antioxidant is selected from one or more of alkyl monophenol antioxidant, alkyl polyphenol antioxidant and thiobisphenol antioxidant; the lubricant is selected from one or more of stearamide lubricants, EBS B50, EB-FF, EBS P400 and WK 1890; the anti-dripping agent is one or more selected from polytetrafluoroethylene compounds, SN80-SA7 and POLY TS 30A.
9. The preparation method of the halogen-free flame retardant ABS composition according to any of claims 1 to 8, characterized in that the method comprises the following steps:
stirring and mixing all the components at a high speed to obtain a premix; and (3) feeding the premix into a double-screw extruder, extruding, cooling with water, and granulating to obtain the halogen-free flame-retardant ABS composition.
10. Use of a halogen free flame retardant ABS composition according to any of claims 1 to 8 in household electrical appliances.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011121432.XA CN112250985B (en) | 2020-10-19 | 2020-10-19 | Halogen-free flame-retardant ABS composition and preparation method and application thereof |
| PCT/CN2021/082257 WO2022083057A1 (en) | 2020-10-19 | 2021-03-23 | Halogen-free flame retardant abs composition, preparation method therefor and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011121432.XA CN112250985B (en) | 2020-10-19 | 2020-10-19 | Halogen-free flame-retardant ABS composition and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112250985A true CN112250985A (en) | 2021-01-22 |
| CN112250985B CN112250985B (en) | 2022-06-07 |
Family
ID=74245642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011121432.XA Active CN112250985B (en) | 2020-10-19 | 2020-10-19 | Halogen-free flame-retardant ABS composition and preparation method and application thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112250985B (en) |
| WO (1) | WO2022083057A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022083057A1 (en) * | 2020-10-19 | 2022-04-28 | 金发科技股份有限公司 | Halogen-free flame retardant abs composition, preparation method therefor and use thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044161B (en) * | 2022-06-16 | 2023-11-14 | 金发科技股份有限公司 | Flame-retardant ABS material and preparation method and application thereof |
| CN115181344B (en) * | 2022-07-28 | 2023-08-22 | 金发科技股份有限公司 | High heat-resistant flame-retardant HIPS material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6518336B1 (en) * | 1998-07-14 | 2003-02-11 | Otsuka Chemical Co., Ltd. | Flame-retardent resin compositions compring thermoplastic resin, thermotropic liquid crystal polymer, and hoalogen-free phosphazen compound |
| CN102936416A (en) * | 2012-11-22 | 2013-02-20 | 天津市飞荣达科技有限公司 | Halogen-free flame retardant, and application and polycarbonate composition thereof |
| JP2014221850A (en) * | 2013-05-13 | 2014-11-27 | 三菱エンジニアリングプラスチックス株式会社 | Resin composition for laser direct structuring, resin molding and method of producing resin molding provided with plating layer |
| CN109721768A (en) * | 2018-12-22 | 2019-05-07 | 广州市寅源新材料科技有限公司 | Bittern-free phosphorous-nitrogen composite flame-retardant agent and halogen-free combustion-proof thermoplastic polymer comprising it |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112250985B (en) * | 2020-10-19 | 2022-06-07 | 金发科技股份有限公司 | Halogen-free flame-retardant ABS composition and preparation method and application thereof |
-
2020
- 2020-10-19 CN CN202011121432.XA patent/CN112250985B/en active Active
-
2021
- 2021-03-23 WO PCT/CN2021/082257 patent/WO2022083057A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6518336B1 (en) * | 1998-07-14 | 2003-02-11 | Otsuka Chemical Co., Ltd. | Flame-retardent resin compositions compring thermoplastic resin, thermotropic liquid crystal polymer, and hoalogen-free phosphazen compound |
| CN102936416A (en) * | 2012-11-22 | 2013-02-20 | 天津市飞荣达科技有限公司 | Halogen-free flame retardant, and application and polycarbonate composition thereof |
| JP2014221850A (en) * | 2013-05-13 | 2014-11-27 | 三菱エンジニアリングプラスチックス株式会社 | Resin composition for laser direct structuring, resin molding and method of producing resin molding provided with plating layer |
| CN109721768A (en) * | 2018-12-22 | 2019-05-07 | 广州市寅源新材料科技有限公司 | Bittern-free phosphorous-nitrogen composite flame-retardant agent and halogen-free combustion-proof thermoplastic polymer comprising it |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022083057A1 (en) * | 2020-10-19 | 2022-04-28 | 金发科技股份有限公司 | Halogen-free flame retardant abs composition, preparation method therefor and use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112250985B (en) | 2022-06-07 |
| WO2022083057A1 (en) | 2022-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112250985B (en) | Halogen-free flame-retardant ABS composition and preparation method and application thereof | |
| Chen et al. | Performance of intumescent flame retardant master batch synthesized through twin-screw reactively extruding technology: effect of component ratio | |
| CN101845197B (en) | High-performance halogen-free flame retardant ABS modified resin and preparation method thereof | |
| CN107286563B (en) | Intumescent flame retardant for ABS electrical switch outer cover and preparation and application thereof | |
| EP2505607B1 (en) | Thermoplastic ABS resin compositions having flame retardancy | |
| CN106700525B (en) | A kind of HI high impact halogen-free flameproof POK/PA alloy material | |
| CN103724968A (en) | High-heat-resistant high-rigidity halogen-free flame-retardant scratch-resistant PC-ABS (polycarbonate-acrylonitrile-butadiene-styrene) alloy material and preparation method thereof | |
| CN112679545B (en) | Melamine-based nitrogen-phosphorus-containing compound, preparation method and application thereof, and flame-retardant epoxy resin composition thereof | |
| CN112457623B (en) | High-impact-resistance and yellowing-resistance flame-retardant ABS material and preparation method thereof | |
| CN115322488B (en) | Flame-retardant polypropylene composite material and preparation method and application thereof | |
| CN115304913B (en) | Reinforced flame-retardant hypophosphite/nylon composite material with high glow wire ignition temperature and preparation method thereof | |
| CN102702612B (en) | High-flow precipitation-resistant halogen-free flame-retardant polypropylene composite material and preparation method thereof | |
| CN112143223A (en) | Low-toxicity low-smoke halogen-free flame-retardant high-temperature-resistant nylon material and preparation method and application thereof | |
| CN113817263A (en) | Halogen-free flame-retardant polypropylene composition and preparation method and application thereof | |
| CN111635587A (en) | High-reinforcement, low-fuming, halogen-free and environment-friendly flame-retardant polypropylene material and preparation method thereof | |
| CN103740038A (en) | High-glossiness halogen-free flame-retardant ABS material and preparation method thereof | |
| CN115011078A (en) | Flame-retardant environment-friendly PET plastic and preparation method thereof | |
| CN108912642B (en) | Antistatic, low-smoke, halogen-free and flame-retardant PC/ABS alloy material and preparation process thereof | |
| CN104371207A (en) | Flame retardant material and preparation method thereof | |
| CN112608580A (en) | Flame-retardant ABS composition and preparation method and application thereof | |
| CN106633752B (en) | Halogen-free flame-retardant PC/ABS alloy material and preparation method and application thereof | |
| CN108976754B (en) | Antistatic flame-retardant composite material and preparation method and application thereof | |
| CN115716985B (en) | Halogen-free flame-retardant polyurethane elastomer and preparation method thereof | |
| CN114213761B (en) | High-gloss low-precipitation flame-retardant polypropylene composition and preparation method and application thereof | |
| CN114656777A (en) | Phosphate glass synergistic flame-retardant polyamide capable of being prepared at low temperature and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211220 Address after: 510663 Guangzhou science and Technology Development Zone, Guangdong, China, 33 Applicant after: KINGFA SCI. & TECH. Co.,Ltd. Applicant after: Liaoning Baolai New Material Co.,Ltd. Address before: 510663 Guangzhou science and Technology Development Zone, Guangdong, China, 33 Applicant before: KINGFA SCI. & TECH. Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Guangzhou science and Technology Development Zone, Guangdong, China, 33 Patentee after: KINGFA SCI. & TECH. Co.,Ltd. Patentee after: Liaoning Jinfa Technology Co.,Ltd. Address before: 510663 Guangzhou science and Technology Development Zone, Guangdong, China, 33 Patentee before: KINGFA SCI. & TECH. Co.,Ltd. Patentee before: Liaoning Baolai New Material Co.,Ltd. |