LU504662B1 - A preparation method of unsaturated polyester utensils - Google Patents
A preparation method of unsaturated polyester utensils Download PDFInfo
- Publication number
- LU504662B1 LU504662B1 LU504662A LU504662A LU504662B1 LU 504662 B1 LU504662 B1 LU 504662B1 LU 504662 A LU504662 A LU 504662A LU 504662 A LU504662 A LU 504662A LU 504662 B1 LU504662 B1 LU 504662B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- unsaturated polyester
- parts
- utensils
- anhydride
- acid
- Prior art date
Links
- 229920006305 unsaturated polyester Polymers 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 35
- 229920006337 unsaturated polyester resin Polymers 0.000 claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 28
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 24
- 239000003208 petroleum Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 238000013329 compounding Methods 0.000 claims abstract description 13
- 229920005862 polyol Polymers 0.000 claims abstract description 12
- 150000003077 polyols Chemical class 0.000 claims abstract description 12
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 6
- 238000006482 condensation reaction Methods 0.000 claims abstract description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 54
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 19
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 18
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 18
- LNYYKKTXWBNIOO-UHFFFAOYSA-N 3-oxabicyclo[3.3.1]nona-1(9),5,7-triene-2,4-dione Chemical compound C1=CC(C(=O)OC2=O)=CC2=C1 LNYYKKTXWBNIOO-UHFFFAOYSA-N 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000003786 synthesis reaction Methods 0.000 claims description 9
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 6
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 6
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 6
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 claims description 4
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 claims description 4
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 claims description 3
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 claims description 3
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 3
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 claims description 3
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims description 3
- 239000001361 adipic acid Substances 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 3
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 claims description 3
- 229940018557 citraconic acid Drugs 0.000 claims description 3
- 239000001530 fumaric acid Substances 0.000 claims description 3
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 claims description 3
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 3
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 3
- 229920000166 polytrimethylene carbonate Polymers 0.000 claims description 3
- 235000013772 propylene glycol Nutrition 0.000 claims description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 150000007519 polyprotic acids Polymers 0.000 description 2
- -1 unsaturated polyacid Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/06—Unsaturated polyesters
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- 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 unsaturated polyester utensils. The method involves condensation reaction of a polyol with unsaturated polyacid and saturated polyacid to obtain unsaturated polyester resin. Then, aluminum hydroxide, silicon dioxide, and C5 petroleum resin are added to the unsaturated polyester resin to form a mixture through blending and compounding. The mixture of unsaturated polyester resin is then divided into blocks and subjected to high temperature and high-pressure molding using a mold, resulting in excellent unsaturated polyester utensils. By adding aluminum hydroxide and silicon dioxide to the product, the temperature resistance is improved, mechanical properties are enhanced, and the product becomes microwaveable, high temperature resistant, and resistant to impact.
Description
Description LU504662
Title: APREPARATION METHOD OF UNSATURATED POLYESTER UTENSILS
The present invention relates to the technical field of utensil processing, specifically a method of preparing unsaturated polyester utensils.
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.
The technical problem solved by the present invention is to provide a preparation process for unsaturated polyester and to process it into utensils using unsaturated polyester in order to solve the problems mentioned in the prior art.
According to one aspect of the present invention, the following method is proposed to solve the above technical problem.
A method for preparing unsaturated polyester utensils, characterized by: obtaining unsaturated polyester resin through condensation reaction of polyols, unsaturated polyacids, and saturated polyacids; forming an unsaturated polyester resin composition, wherein the unsaturated polyester resin is mixed and compounded with forming materials; the unsaturated polyester resin composition is cured and molded under high temperature and high pressure to obtain utensils; the utensils are finally polished, cleaned, and packaged.
In some embodiments, the polyols used for the synthesis of unsaturated polyester are one or more of ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, and hexanediol.
In some embodiments, the unsaturated polyacids used for the synthesis of unsaturated polyester are one or more of maleic anhydride, fumaric acid, citraconic acid, and itaconic acid.
In some embodiments, the saturated polyacids used for the synthesis of unsaturated polyester are one or more of phthalic anhydride, isophthalic acid, terephthalic acid, adipic acid,U504662 tetrahydrophthalic anhydride, trimellitic acid, trimellitic anhydride, and pyromellitic acid.
In some embodiments, the forming material is aluminum hydroxide, silicon dioxide, and C5 petroleum resin.
In some embodiments, the polyol is ethylene glycol, the unsaturated polyacid is maleic anhydride, and the saturated polyacid is phthalic anhydride and isophthalic acid anhydride.
In some embodiments, the method for preparing unsaturated polyester utensils comprises the following steps: step 1: quantitatively mix and stir phthalic anhydride, isophthalic acid anhydride, maleic anhydride, and ethylene glycol in a reactor according to the ratio, and heat it up to 160-210°C, reacting until the acid value is less than 55mg KOH/g; step 2: quantitatively add aluminum hydroxide, silica dioxide, and C5 petroleum resin to the reactor for thorough mixing and compounding, ensuring sufficient agitation between the raw materials to obtain an unsaturated polyester resin composition; step 3: subject the unsaturated polyester resin composition to high-temperature and high- pressure vulcanization molding using a mold, wherein the temperature inside the mold is 180- 200°C, and the mold pressure is 100-300 tons, resulting in the curing and forming of the utensils, the utensils are then polished, cleaned, inspected, and packaged.
In some embodiments, the mass fractions of the reaction materials are as follows: 38-45 parts of aluminum hydroxide, 31-37 parts of silica dioxide, 5-7 parts of phthalic anhydride, 8-12 parts of isophthalic acid anhydride, 0.8-1.3 parts of maleic anhydride, 2-4 parts of ethylene glycol, and 3-6 parts of C5 petroleum resin.
In some embodiments, the mass fractions of the raw materials are as follows: 41 parts of aluminum hydroxide, 34 parts of silica dioxide, 6 parts of phthalic anhydride, 10 parts of isophthalic acid anhydride, 1 part of maleic anhydride, 3 parts of ethylene glycol, and 5 parts of
C5 petroleum resin.
In some embodiments, the temperature of the mixed compounding in step 2 is 80-110°C, and the time is 10-20 minutes.
In some embodiments, the average particle size of the aluminum hydroxide is between 1um and 50pm.
Compared to the prior art, the advantageous effects of the present invention are as follows:
In the present invention, unsaturated polyester resin is obtained by polycondensation of a polyol, unsaturated polyacid, and saturated polyacid. Then, aluminum hydroxide, silica dioxide, and C5 petroleum resin are added to the unsaturated polyester resin to form a mixture through blending and compounding. The mixture of unsaturated polyester resin is then cut into blocks and moldebU504662 under high temperature and high pressure using a mold, resulting in excellent unsaturated polyester utensils. By adding aluminum hydroxide and silica dioxide, the temperature resistance of the product is improved, as well as the mechanical properties, enabling the product to be microwaveable, high-temperature resistant, and resistant to impact.
In order to facilitate a clear understanding of the technical means, creative features, objectives, and effects of the present invention, further explanation is provided.
This embodiment provides a method for preparing unsaturated polyester utensils. It involves condensation reaction between polyols, unsaturated polyacids, and saturated polyacids to obtain unsaturated polyester resin. The unsaturated polyester resin is then mixed and compounded with forming materials to obtain an unsaturated polyester resin composition. The composition is subjected to vulcanization molding under high temperature and high pressure to obtain utensils.
Finally, the utensils are polished, cleaned, and packaged.
As for the polyols used in the synthesis of unsaturated polyester, they include one or more of the following: ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, and hexanediol. Among these polyols, ethylene glycol is preferred.
As for the unsaturated polyacid used for the synthesis of unsaturated polyester, it includes one or several of maleic anhydride, fumaric acid, citraconic acid, and itaconic acid. The preferred unsaturated polyacid is maleic anhydride.
As saturated polybasic acids for the synthesis of unsaturated polyester, the following are used: phthalic anhydride, isophthalic acid, terephthalic acid, adipic acid, tetrahydrophthalic anhydride, trimellitic acid, trimellitic anhydride, and phthalic acid anhydride. One or more of these saturated polybasic acids are preferred, with phthalic anhydride and trimellitic anhydride being the preferred ones.
The molding material consists of aluminum hydroxide, silicon dioxide, and C5 petroleum resin.
Aluminum hydroxide and silicon dioxide are added to the unsaturated polyester resin composition to enhance the temperature resistance and impact resistance of the material. C5 petroleum resin is used as an adhesive to improve the bonding between the various materials and to serve as a connecting agent for joining objects.
A method for preparing unsaturated polyester utensils comprises the following steps: step 1: quantitatively mix and stir phthalic anhydride, isophthalic acid anhydride, maleic anhydride, and ethylene glycol in a reactor according to the ratio, and heat it up to 160°C, reacting until the acid value is less than 55mg KOH/g;
step 2: quantitatively add aluminum hydroxide, silica dioxide, and C5 petroleum resin to theU504662 reactor for thorough mixing and compounding, ensuring sufficient agitation between the raw materials to obtain an unsaturated polyester resin composition; step 3: subject the unsaturated polyester resin composition to high-temperature and high- pressure vulcanization molding using a mold, wherein the temperature inside the mold is 180°C, and the mold pressure is 100 tons, resulting in the curing and forming of the utensils, the utensils are then polished, cleaned, inspected, and packaged.
The mass fractions of the aforementioned reaction materials are as follows: 38 parts of aluminum hydroxide, 31 parts of silica dioxide, 5 parts of phthalic anhydride, 8 parts of isophthalic acid anhydride, 0.8 parts of maleic anhydride, 2 parts of ethylene glycol, and 3 parts of C5 petroleum resin.
In step 2 of the process, the temperature for the mixed compounding is 80°C, and the duration is 10 minutes.
The average particle size of the aluminum hydroxide is between 1um and 50pm.
A method for preparing unsaturated polyester utensils comprises the following steps: step 1: quantitatively mix and stir phthalic anhydride, isophthalic acid anhydride, maleic anhydride, and ethylene glycol in a reactor according to the ratio, and heat it up to 170°C, reacting until the acid value is less than 55mg KOH/g; step 2: quantitatively add aluminum hydroxide, silica dioxide, and C5 petroleum resin to the reactor for thorough mixing and compounding, ensuring sufficient agitation between the raw materials to obtain an unsaturated polyester resin composition; step 3: subject the unsaturated polyester resin composition to high-temperature and high- pressure vulcanization molding using a mold, wherein the temperature inside the mold is 190°C, and the mold pressure is 200 tons, resulting in the curing and forming of the utensils, the utensils are then polished, cleaned, inspected, and packaged.
The mass fractions of the aforementioned reaction materials are as follows: 41 parts of aluminum hydroxide, 34 parts of silica dioxide, 6 parts of phthalic anhydride, 10 parts of isophthalic acid anhydride, 1 parts of maleic anhydride, 3 parts of ethylene glycol, and 5 parts of
C5 petroleum resin.
In step 2 of the process, the temperature for the mixed compounding is 100°C, and the duration is 15 minutes.
A method for preparing unsaturated polyester utensils comprises the following steps: step 1: quantitatively mix and stir phthalic anhydride, isophthalic acid anhydride, maleic anhydride, and ethylene glycol in a reactor according to the ratio, and heat it up to 210°C, reacting until the acid value is less than 55mg KOH/g; step 2: quantitatively add aluminum hydroxide, silica dioxide, and C5 petroleum resin to the reactor for thorough mixing and compounding, ensuring sufficient agitation between the rawU504662 materials to obtain an unsaturated polyester resin composition; step 3: subject the unsaturated polyester resin composition to high-temperature and high- pressure vulcanization molding using a mold, wherein the temperature inside the mold is 200°C, 5 and the mold pressure is 300 tons, resulting in the curing and forming of the utensils, the utensils are then polished, cleaned, inspected, and packaged.
The mass fractions of the aforementioned reaction materials are as follows: 45 parts of aluminum hydroxide, 37 parts of silica dioxide, 7 parts of phthalic anhydride, 12 parts of isophthalic acid anhydride, 1.3 parts of maleic anhydride, 4 parts of ethylene glycol, and 6 parts of C5 petroleum resin.
In step 2 of the process, the temperature for the mixed compounding is 110°C, and the duration is 20 minutes.
In the present invention, unsaturated polyester resin is obtained by polycondensation of a polyol, unsaturated polyacid, and saturated polyacid. Then, aluminum hydroxide, silica dioxide, and C5 petroleum resin are added to the unsaturated polyester resin to form a mixture through blending and compounding. The mixture of unsaturated polyester resin is then cut into blocks and molded under high temperature and high pressure using a mold, resulting in excellent unsaturated polyester utensils. By adding aluminum hydroxide and silica dioxide, the temperature resistance of the product is improved, as well as the mechanical properties, enabling the product to be microwaveable, high-temperature resistant, and resistant to 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 BU504662 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)
1. À method for preparing unsaturated polyester utensils, characterized by comprising the steps: obtaining unsaturated polyester resin through condensation reaction of polyols, unsaturated polyacids, and saturated polyacids; forming an unsaturated polyester resin composition, wherein the unsaturated polyester resin is mixed and compounded with forming materials; the unsaturated polyester resin composition is cured and molded under high temperature and high pressure to obtain utensils; the utensils are then polished, cleaned, and packaged.
2. The method for preparing unsaturated polyester utensils according to claim 1, characterized in that the polyols used for the synthesis of unsaturated polyester are one or more of ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, and hexanediol.
3. The method for preparing unsaturated polyester utensils according to claim 1, characterized in that the unsaturated polyacids used for the synthesis of unsaturated polyester are one or more of maleic anhydride, fumaric acid, citraconic acid, and itaconic acid.
4. The method for preparing unsaturated polyester utensils according to claim 1, characterized in that the saturated polyacids used for the synthesis of unsaturated polyester are one or more of phthalic anhydride, isophthalic acid, terephthalic acid, adipic acid, tetrahydrophthalic anhydride, trimellitic acid, trimellitic anhydride, and pyromellitic acid.
5. The method for preparing unsaturated polyester utensils according to any one of claims 1 to 4, characterized in that: the polyol is ethylene glycol, the unsaturated polyacid is maleic anhydride, and the saturated polyacid is phthalic anhydride and isophthalic acid anhydride.
6. The method for preparing unsaturated polyester utensils according to claim 5, characterized ihU504662 that: the forming material is aluminum hydroxide, silicon dioxide, and C5 petroleum resin.
7. The method for preparing unsaturated polyester utensils according to claim 6, characterized by comprising the following steps: step 1: quantitatively mix and stir phthalic anhydride, isophthalic acid anhydride, maleic anhydride, and ethylene glycol in a reactor according to the ratio, and heat it up to 160-210°C, reacting until the acid value is less than 55mg KOH/g; step 2: quantitatively add aluminum hydroxide, silica dioxide, and C5 petroleum resin to the reactor for thorough mixing and compounding, ensuring sufficient agitation between the raw materials to obtain an unsaturated polyester resin composition; step 3: subject the unsaturated polyester resin composition to high-temperature and high- pressure vulcanization molding using a mold, wherein the temperature inside the mold is 180- 200°C, and the mold pressure is 100-300 tons, resulting in the curing and forming of the utensils, the utensils are then polished, cleaned, inspected, and packaged.
8. The method for preparing unsaturated polyester utensils according to claim 7, characterized in that the mass fractions of the reaction materials are as follows: 38-45 parts of aluminum hydroxide, 31-37 parts of silica dioxide, 5-7 parts of phthalic anhydride, 8-12 parts of isophthalic acid anhydride, 0.8-1.3 parts of maleic anhydride, 2-4 parts of ethylene glycol, and 3-6 parts of C5 petroleum resin.
9. The method for preparing unsaturated polyester utensils according to claim 8, characterized in that the mass fractions of the raw materials are as follows: 41 parts of aluminum hydroxide, 34 parts of silica dioxide, 6 parts of phthalic anhydride, 10 parts of isophthalic acid anhydride, 1 part of maleic anhydride, 3 parts of ethylene glycol, and 5 parts of C5 petroleum resin.
10. The method for preparing unsaturated polyester utensils according to claim 7, characterize:U504662 in that the temperature of the mixed compounding in step 2 is 80-110°C, and the time is 10-20 minutes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310278021.9A CN116515270A (en) | 2023-03-21 | 2023-03-21 | Preparation method of unsaturated polyester vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU504662B1 true LU504662B1 (en) | 2023-09-18 |
Family
ID=86901383
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU504662A LU504662B1 (en) | 2023-03-21 | 2023-03-28 | A preparation method of unsaturated polyester utensils |
| LU504653A LU504653B1 (en) | 2023-03-21 | 2023-04-04 | Method for preparing container from composite material |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU504653A LU504653B1 (en) | 2023-03-21 | 2023-04-04 | Method for preparing container from composite material |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN116515270A (en) |
| LU (2) | LU504662B1 (en) |
| WO (2) | WO2023116947A2 (en) |
Family Cites Families (10)
| 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 |
-
2023
- 2023-03-21 CN CN202310278021.9A patent/CN116515270A/en active Pending
- 2023-03-28 LU LU504662A patent/LU504662B1/en active IP Right Grant
- 2023-03-28 WO PCT/CN2023/084427 patent/WO2023116947A2/en unknown
- 2023-04-04 LU LU504653A patent/LU504653B1/en active IP Right Grant
- 2023-04-04 WO PCT/CN2023/086120 patent/WO2023116949A2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| LU504653B1 (en) | 2023-09-18 |
| CN116515270A (en) | 2023-08-01 |
| WO2023116949A2 (en) | 2023-06-29 |
| WO2023116947A3 (en) | 2024-01-04 |
| WO2023116947A2 (en) | 2023-06-29 |
| WO2023116949A3 (en) | 2024-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4340579A (en) | Process for producing modified alumina hydrate crystals | |
| JP2007154169A (en) | Liquid crystal polyester resin composition and molded product for electronic part | |
| CN1064891C (en) | Bottle from polyester composition and process for producing | |
| LU504662B1 (en) | A preparation method of unsaturated polyester utensils | |
| CN1039603A (en) | Polyester carbonate copolymer and preparation method thereof and the polyester and resin composition that contains this multipolymer | |
| CN116925454B (en) | Paper pulp/polyethylene composite material and preparation method thereof | |
| JP5197553B2 (en) | Liquid crystalline resin composition and molded product thereof | |
| US3479318A (en) | Mouldable polyester compositions containing finely divided pyrophyllite | |
| US3153005A (en) | Solid elastomeric polyester resinous molding compositions and electrical members insulated therewith | |
| KR20140114828A (en) | Polyester resins with particular carbon black as a reheat additive | |
| CN101155873A (en) | Polyester composition with high dimensional stability | |
| IE43948B1 (en) | Thermosetting compositions | |
| JP3553770B2 (en) | Resin composition for reinforcing pipe joints made of vinyl chloride resin | |
| JPS608355A (en) | Unsaturated polyester resin composition | |
| RU2073041C1 (en) | Polymeric composition | |
| JPS604844B2 (en) | Manufacturing method of impact-resistant molding material | |
| JP3218293B2 (en) | Method for producing unsaturated polyester resin | |
| US2959564A (en) | Unsaturated polyester-diallyl isophthalate compositions | |
| JP2007002060A (en) | Thermosetting resin composition for molding and molded article | |
| JP2003012898A (en) | Liquid crystalline polyester resin mixture | |
| JPS62112622A (en) | Sealing resin composition | |
| KR0163946B1 (en) | Process for preparing unsaturated polyester resin for high transparent onyx marble and onyx bmc | |
| SU438285A1 (en) | Polymer putty | |
| JPH02145642A (en) | Resin composition | |
| EP1035168A2 (en) | Plastics composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20230918 |