LU504653B1 - Method for preparing container from composite material - Google Patents

Method for preparing container from composite material Download PDF

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Publication number
LU504653B1
LU504653B1 LU504653A LU504653A LU504653B1 LU 504653 B1 LU504653 B1 LU 504653B1 LU 504653 A LU504653 A LU 504653A LU 504653 A LU504653 A LU 504653A LU 504653 B1 LU504653 B1 LU 504653B1
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LU
Luxembourg
Prior art keywords
parts
composite material
acid
unsaturated polyester
polyacid
Prior art date
Application number
LU504653A
Other languages
French (fr)
Inventor
Dabing Xie
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Anhui Keshi Ecotech Co Ltd
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Publication of LU504653B1 publication Critical patent/LU504653B1/en

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06Unsaturated polyesters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/52Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/20Compounding polymers with additives, e.g. colouring
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/34Silicon-containing compounds
    • C08K3/36Silica
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
    • C08K7/02Fibres or whiskers
    • C08K7/04Fibres or whiskers inorganic
    • C08K7/14Glass
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/06Unsaturated polyesters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2227Oxides; Hydroxides of metals of aluminium
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The present invention provides a method for preparing utensils using a composite material. The method involves condensation reaction of a polyol, an unsaturated polyacid, and a saturated polyacid to obtain unsaturated polyester resin. The unsaturated polyester resin is mixed with aluminum hydroxide, silicon dioxide, and glass fiber in a reactor according to a specific ratio. After thorough mixing, C5 petroleum resin and a curing agent are added and mixed to form a homogeneous blend. The cured composite material is then cut into small pieces and placed in a mold. The molded material is subjected to high temperature and high-pressure vulcanization using the mold, resulting in the formation of utensils. The addition of aluminum hydroxide and silicon dioxide in the product enhances its temperature resistance and improves its mechanical properties, enabling the product to withstand microwave heating, high temperatures, and impacts. C5 petroleum resin is used as a thickening agent to improve the bonding between the various materials.

Description

! LU504653
Description
Title: A METHOD OF PREPARING UTENSILS FROM COMPOSITE MATERIALS
Technical Field
The present invention relates to the technical field of utensil processing, specifically a method for preparing utensils from composite materials.
Background Art
Currently, the market mainly consists of ceramic and plastic utensils. The advantages and disadvantages of ceramic and plastic utensils are quite apparent. Ceramic utensils are fragile and lack resilience, while existing plastic utensils cannot withstand high temperatures and are not suitable for microwave heating. As a result, there are numerous flaws and inconveniences in their practical usage.
Summary of the Invention Technical Problem
The technical problem addressed by the present invention is to provide a preparation process for unsaturated polyester and to obtain a composite material by mixing unsaturated polyester with other materials. The composite material is then processed into utensils to solve the problems mentioned in the background technology.
Technical Solution
According to one aspect of the present invention, the following method is proposed to solve the above technical problem.
A method for preparing composite material utensils, characterized by the following mass ratios of ingredients: unsaturated polyester resin 35-42 parts, aluminum hydroxide 38-45 parts, silicon dioxide 31-37 parts, C5 petroleum resin 3-6 parts, glass fiber 31-37 parts, curing agent 3- 4 parts, the method comprising the following steps: step 1: mixing and stirring unsaturated polyester resin, aluminum hydroxide, silicon dioxide, and glass fiber in a reactor according to the specified ratios, the reaction temperature is 160- 200°C, and stirring is carried out for 10-15 minutes; step 2: The reactor is cooled to 100-120°C, and a predetermined amount of C5 petroleum resin and curing agent is added to the reactor for mixing and compounding, the compounding time is 10-20 minutes, resulting in a composite material, step 3: the composite material is cut into small pieces, placed into molds, and subjected to high-temperature and high-pressure vulcanization molding; utensils are formed, cooled, and then subjected to polishing, cleaning, inspection, and packaging.
Beneficial Effects
2 LU504653
Compared to the prior art, the beneficial effects of the present invention are as follows: In this application, the unsaturated polyester resin is obtained through a condensation reaction of a polyol, unsaturated polyacid, and saturated polyacid. The unsaturated polyester resin, along with aluminum hydroxide, silica dioxide, and glass fiber, are mixed in a reactor according to a certain ratio. After uniform mixing, C5 petroleum resin and a curing agent are added for further blending.
The cured composite material is then cut into small pieces and placed in a mold. Through high- temperature and high-pressure vulcanization molding using the mold, utensils are produced. By adding aluminum hydroxide and silica dioxide to the product, the temperature resistance and mechanical properties of the product are improved, enabling it to withstand microwave heating, high temperatures, and impact. C5 petroleum resin is used as a thickening agent to enhance the connection between various materials. The use of high-temperature and high-pressure vulcanization molding with a mold improves the appearance glossiness of the utensils, enhances overall strength and quality, prolongs the service life, and facilitates production.
Detailed Description of Embodiments
In order to facilitate a clear understanding of the technical means, creative features, objectives, and effects of the present invention, further explanation is provided.
Embodiment
This embodiment provides a method for preparing utensils using a composite material. The mass ratio of the raw materials is as follows: 35-42 parts of unsaturated polyester resin, 38-45 parts of aluminum hydroxide, 31-37 parts of silica dioxide, 3-6 parts of C5 petroleum resin, 31-37 parts of glass fiber, and 3-4 parts of curing agent. The method includes the following steps:
Step 1: Mix and stir the unsaturated polyester resin, aluminum hydroxide, silica dioxide, and glass fiber in the reactor according to the given ratio. The reaction temperature is 160°C, and stirring is carried out for 10 minutes.
Step 2: Cool down the reactor to 100°C, and add a predetermined amount of C5 petroleum resin and curing agent to the reactor for mixing and compounding. The compounding time is 10 minutes, resulting in a composite material.
Step 3: Cut the composite material into small pieces and place them into molds. The material is then molded through high-temperature and high-pressure vulcanization in the molds to produce the utensils. After cooling, the utensils are removed, polished, cleaned, inspected, and packaged.
The preferred mass ratio of the raw materials is as follows: 38 parts of unsaturated polyester resin, 42 parts of aluminum hydroxide, 35 parts of silicon dioxide, 4 parts of C5 petroleum resin, 36 parts of glass fiber, and 3 parts of curing agent.
The curing agent is a mixture of one or more of the following: aminosulfonic acid amine,
3 LU504653 amino sulfonic acid ethanolamine salt, ethylamine sulfate, and imino bisulfonic acid propanolamine salt.
The unsaturated polyester resin is obtained by condensation reaction of polyol with unsaturated polyacid and saturated polyacid. The polyol and saturated polyacid are added to a reactor according to a certain ratio and subjected to condensation reaction at a temperature of 160°C for 5 hours until the acid value is less than 55 mg KOH/g. The temperature is then reduced to 140°C, and unsaturated polyacid is added. The reaction is continued for 3 hours until the acid value is less than 30 mg KOH/g. The mixture is cooled to 100°C, and an active diluent is added.
The polyols used for the synthesis of unsaturated polyester are ethylene glycol, 1,2- propanediol, 1,3-propanediol, 1,4-butanediol, a mixture of neopentyl glycol and hexanediol.
The unsaturated polyacids used for the synthesis of unsaturated polyester are maleic anhydride, fumaric acid, isophthalic acid, and terephthalic acid, or a mixture of one or more of them.
The saturated polyacids used for the synthesis of unsaturated polyester are phthalic anhydride, phthalic acid, isophthalic acid, adipic acid, tetrahydrophthalic anhydride, trimellitic acid, trimellitic anhydride, and pyromellitic acid, or a mixture of one or more of them.
The reactive diluents used for the synthesis of unsaturated polyester are styrene, divinylbenzene, methyl methacrylate, hydroxypropyl methacrylate, or a mixture of one or more of them.
Preferably, the polyol is ethylene glycol, the unsaturated polyacid is maleic anhydride, the saturated polyacids are phthalic anhydride and trimellitic anhydride, and the reactive diluent is styrene.
The average particle size of the aluminum hydroxide is between 1um and 50um.
Embodiment
The present embodiment provides a method for preparing utensils using a composite material. The mass ratio of the raw materials is as follows: 35-42 parts of unsaturated polyester resin, 38-45 parts of aluminum hydroxide, 31-37 parts of silicon dioxide, 3-6 parts of C5 petroleum resin, 31-37 parts of glass fiber, and 3-4 parts of curing agent. The method includes the following steps:
Step 1: Mix and stir unsaturated polyester resin, aluminum hydroxide, silicon dioxide, and glass fiber in a reactor according to the specified ratio. The reaction temperature is 180°C, and stirring is performed for 12 minutes.
Step 2: Cool the reactor to 110°C, and add a specified amount of C5 petroleum resin and curing agent to the reactor for mixing and compounding. The compounding time is 15 minutes, resulting in a composite material.
4 LU504653
Step 3: Cut the composite material into small pieces, place them into a mold, and perform high-temperature and high-pressure vulcanization molding in the mold to obtain utensils. After cooling, remove the utensils and carry out polishing, cleaning, inspection, and packaging.
The preferred mass ratio of the raw materials is as follows: 38 parts of unsaturated polyester resin, 42 parts of aluminum hydroxide, 35 parts of silica dioxide, 4 parts of C5 petroleum resin, 36 parts of fiberglass, and 3 parts of curing agent.
The curing agent mentioned is a mixture of one or several of the following: aminosulfonic acid amine, amino sulfonic acid ethanolamine salt, ethylamine sulfate, and imidazolidine disulfonic acid ethanolamine salt.
The unsaturated polyester resin is obtained through a condensation reaction of polyols, unsaturated polyacids, and saturated polyacids. The polyols and saturated polyacids are added to a reactor in the specified ratio and subjected to a condensation reaction at a temperature of 180°C for 7 hours until the acid value is less than 55 mg KOH/g. The temperature is then lowered to 145°C, and unsaturated polyacids are added. The reaction continues for 4 hours until the acid value is less than 30 mg KOH/g. The mixture is cooled to 105°C, and an active diluent is added.
The polyols used for the synthesis of unsaturated polyester include one or several of the following: ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, and hexanediol.
The unsaturated polyacids used for the synthesis of unsaturated polyester include one or several of the following: maleic anhydride, fumaric acid, citraconic acid, and itaconic acid.
The saturated polyacids used for the synthesis of unsaturated polyester include one or several of the following: phthalic anhydride, isophthalic acid, terephthalic acid, adipic acid, tetrahydrophthalic anhydride, trimellitic acid, trimellitic anhydride, and pyromellitic acid.
The active diluent used for the synthesis of unsaturated polyester includes one or several of the following: vinyltoluene, divinylbenzene, methyl methacrylate, and hydroxypropyl methacrylate.
Preferably, the polyol is ethylene glycol, the unsaturated polyacid is maleic anhydride, the saturated polyacids are phthalic anhydride and trimellitic anhydride, and the active diluent is vinyltoluene.
The average particle size of the aluminum hydroxide is between 1 um and 50 um.
Embodiment
This embodiment provides a method for preparing utensils using a composite material. The mass ratio of the raw materials is as follows: 35-42 parts of unsaturated polyester resin, 38-45 parts of aluminum hydroxide, 31-37 parts of silica dioxide, 3-6 parts of C5 petroleum resin, 31-37 parts of glass fiber, and 3-4 parts of curing agent. The method includes the following steps:
Step 1: Mix and stir unsaturated polyester resin, aluminum hydroxide, silica dioxide, and
> LU504653 glass fiber in the reactor according to the specified ratio. The reaction temperature is 200°C, and the stirring is performed for 15 minutes.
Step 2: Cool down the reactor to 120°C, and add a predetermined amount of C5 petroleum resin and curing agent to the reactor for mixing and compounding. The compounding time is 20 minutes, resulting in a composite material.
Step 3: Cut the composite material into small pieces and place them in a mold. The material is then molded under high temperature and high pressure in the mold, resulting in the formation of the utensil. After cooling, the utensil is taken out and subjected to polishing, cleaning, inspection, and packaging.
The preferred mass ratio of the raw materials is as follows: 38 parts of unsaturated polyester resin, 42 parts of aluminum hydroxide, 35 parts of silicon dioxide, 4 parts of C5 petroleum resin, 36 parts of glass fiber, and 3 parts of curing agent.
The curing agent mentioned is a mixture of one or more of the following: aminosulfonic acid amine, aminosulfonic acid ethanolamine salt, sulfuric acid ethanolamine, and imidazolidine dithiopropanolamine salt.
The unsaturated polyester resin is obtained through condensation reaction of polyol, unsaturated polyacid, and saturated polyacid. The polyol and saturated polyacid are added to a reactor according to the ratio and subjected to condensation reaction at a temperature of 210°C for 8 hours until the acid value is less than 55 mg KOH/g. The temperature is then lowered to 150°C, and unsaturated polyacid is added and reacted for another 6 hours until the acid value is less than 30 mg KOH/g. The mixture is cooled to 110°C, and an active diluent is added.
The polyols used for unsaturated polyester synthesis include one or more of ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, and hexanediol.
The unsaturated polyacids used for unsaturated polyester synthesis include one or more of maleic anhydride, fumaric acid, itaconic acid, and isophthalic acid.
The saturated polyacids used for unsaturated polyester synthesis include one or more of phthalic anhydride, terephthalic acid, isophthalic acid, adipic acid, tetrahydrophthalic anhydride, trimellitic acid, trimellitic anhydride, and pyromellitic acid.
The active diluents used for unsaturated polyester synthesis include one or more of styrene, divinylbenzene, methyl methacrylate, and hydroxypropyl methacrylate.
Preferably, ethylene glycol is used as the polyol, maleic anhydride is used as the unsaturated polyacid, phthalic anhydride and trimellitic anhydride are used as the saturated polyacids, and styrene is used as the active diluent.
The average particle size of the aluminum hydroxide is between 1 um and 50 um.
In the present invention, unsaturated polyester resin is obtained through a polycondensation
6 LU504653 reaction of polyols, unsaturated polyacids, and saturated polyacids. The unsaturated polyester resin, along with aluminum hydroxide, silica dioxide, and fiberglass, are mixed and stirred in a reactor according to a specific ratio. After achieving a homogeneous mixture, C5 petroleum resin and a curing agent are added for further blending. The resulting cured composite material is then cut into small pieces and placed into molds. The molds undergo high-temperature and high- pressure vulcanization, resulting in the formation of the utensils. The addition of aluminum hydroxide and silica dioxide in the product enhances its temperature resistance and mechanical properties, enabling it to withstand microwave heating, high temperatures, and impact.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. A person skilled in the art should understand that the present invention is not limited by the above embodiments, and that the above embodiments and the description described in the specification only illustrate the principles of the present invention, and that there will be various variations and improvements of the present invention without departing from the spirit and scope of the present invention, which fall within the scope of the claimed protection of the present invention. The claimed scope of protection of the present invention is defined by the appended claims and their equivalents. It should be noted that in this document, the terms relationship such as first and second, if present, are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or sequence between these entities or operations. Further, the terms "includes," "comprises," or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly listed, or that also includes a process, method, article, or apparatus that is intended to be used for the purpose of the process, method, article, or apparatus. elements, or elements that are inherent to such a process, method, article, or apparatus. Without further limitation, the elements defined by the statement "including a ......" do not preclude the existence of additional identical elements in the process, method, article, or apparatus that include said elements.

Claims (10)

/ LU504653 CLAIMS
1. A method for preparing composite material utensils, characterized by the following mass ratios of ingredients: unsaturated polyester resin 35-42 parts, aluminum hydroxide 38-45 parts, silicon dioxide 31-37 parts, C5 petroleum resin 3-6 parts, glass fiber 31-37 parts, curing agent 3-4 parts, the method comprising the following steps: step 1: mixing and stirring unsaturated polyester resin, aluminum hydroxide, silicon dioxide, and glass fiber in a reactor according to the specified ratios, the reaction temperature is 160-200°C, and stirring is carried out for 10-15 minutes; step 2: The reactor is cooled to 100-120°C, and a predetermined amount of C5 petroleum resin and curing agent is added to the reactor for mixing and compounding, the compounding time is 10-20 minutes, resulting in a composite material; step 3: the composite material is cut into small pieces, placed into molds, and subjected to high- temperature and high-pressure vulcanization molding; utensils are formed, cooled, and then subjected to polishing, cleaning, inspection, and packaging.
2. The method for preparing composite material utensils according to claim 1, characterized in that the preferred mass ratio of the raw materials is as follows: 38 parts of unsaturated polyester resin, 42 parts of aluminum hydroxide, 35 parts of silicon dioxide, 4 parts of C5 petroleum resin, 36 parts of glass fiber, and 3 parts of curing agent.
3. The method for preparing composite material utensils according to claim 1, characterized in that the curing agent is a mixture of one or several compounds selected from aminosulfonic acid amine, aminosulfonic acid ethanolamine salt, ethanolic acid sulfate, and imidazole disulfonic acid propanolamine salt.
8 LU504653
4. The method for preparing composite material utensils according to claim 1, characterized in that the unsaturated polyester resin is obtained by condensation reaction of polyol with unsaturated polyacid and saturated polyacid; the polyol and saturated polyacid are added to a reactor according to a specified ratio and subjected to condensation reaction at a temperature of 160-210°C for 5-8 hours until the acid value is less than 55 mg KOH/g; the temperature is then lowered to 140-150°C, unsaturated polyacid is added, and the reaction is continued for 3- 6 hours until the acid value is less than 30 mg KOH/g; the mixture is cooled to 100-110°C and an active diluent is added.
5. The method for preparing composite material utensils according to claim 4, characterized in that the polyol used for the synthesis of unsaturated polyester is a mixture of one or several of the following: ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, and hexanediol.
6. The method for preparing composite material utensils according to claim 4, characterized in that the unsaturated polyacid used for the synthesis of unsaturated polyester is a mixture of one or several of the following: maleic anhydride, fumaric acid, citraconic acid, and itaconic acid.
7. The method for preparing composite material utensils according to claim 4, characterized in that the saturated polyacid used for the synthesis of unsaturated polyester is a mixture of one or several of the following: phthalic anhydride, isophthalic acid, terephthalic acid, adipic acid, tetrahydrophthalic anhydride, trimellitic acid, trimellitic anhydride, and pyromellitic acid.
8. The method for preparing composite material utensils according to claim 4, characterized in that the reactive diluent used for the synthesis of unsaturated polyester is a mixture of one or several of the following: styrene, divinylbenzene, methyl methacrylate, and hydroxypropyl methacrylate.
9 LU504653
9. The method for preparing composite material utensils according to any one of claims 4 to 8, characterized in that the polyol is ethylene glycol, the unsaturated polyacid is maleic anhydride, the saturated polyacid is phthalic anhydride and trimellitic anhydride, and the reactive diluent is styrene.
10. The method for preparing composite material utensils according to claim 1, characterized in that the average particle size of the aluminum hydroxide is between 1um and 50um.
LU504653A 2023-03-21 2023-04-04 Method for preparing container from composite material LU504653B1 (en)

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Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132087A (en) * 1977-04-22 1978-11-17 Nippon Shokubai Kagaku Kogyo Co Ltd Low volatile thermosetting resin composition
US4334035A (en) * 1981-03-19 1982-06-08 Mitsubishi Petrochemical Co., Ltd. Unsaturated polyester resin composition
JP2003089710A (en) * 2001-09-18 2003-03-28 Kyocera Chemical Corp Unsaturated polyester resin composition for use in impregnation
JP2004091515A (en) * 2002-08-29 2004-03-25 Kyocera Chemical Corp Highly heat dissipating unsaturated polyester resin composition
JP2011006542A (en) * 2009-06-24 2011-01-13 Showa Denko Kk Unsaturated polyester resin composition and encapsulated motor
CN102643524A (en) * 2012-04-24 2012-08-22 上海昭和高分子有限公司 Unsaturated polyester bulk molding compound as well as method and application thereof
CN108250709A (en) * 2018-01-10 2018-07-06 马斌祥 A kind of processing method of self-lubricating abrasion-resistant type unsaturated polyester die plastic
CN111936537B (en) * 2018-04-12 2023-07-28 日本复合材料株式会社 Unsaturated polyester resin composition, molding material, molded article, and battery pack case for electric vehicle
CN112703214B (en) * 2018-10-19 2023-08-04 日本复合材料株式会社 Unsaturated polyester resin composition, molding material, molded article, and battery pack case for electric vehicle
CN111171243B (en) * 2020-02-26 2023-01-10 巨石集团有限公司 Unsaturated polyester resin for mold pressing and mold pressing intermediate material containing same

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WO2023116949A2 (en) 2023-06-29
LU504662B1 (en) 2023-09-18
WO2023116947A3 (en) 2024-01-04
WO2023116947A2 (en) 2023-06-29
WO2023116949A3 (en) 2024-02-01

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