TW204359B - Ashless dispersant polymethacrylate polymers - Google Patents

Abstract

A novel polymer useful as an ashless dispersant additive which provides a combination of dispersancy, good cold cranking engine startup, low-temperature viscosity properties and neutral behavior towards fluoropolymer engine seal materials is produced by polymerizing several alkyl methacrylates with a hydroxyaklyl methacrylate while controlling the relative weight ratio of the component monomers to obtain an appropriate carbon atom content in the aklyl side chain protion of the methacrylate backbone polymer to achieve desired additive solubility properties.

Description

Λ 6 Hf; 204359 V. Description of the invention (1) The present invention is about a monomer selected from (a) (L-Cm) alkyl methacrylate and (C ^ -Cm) alkyl acrylate and ( b) Polymers derived from monomers of hydroxy (C · -C6) alkyl methacrylate and hydroxy (Ca-Ce) alkyl acrylate, in which the average number of atoms of algae is about 8 to 14 . The polymer can be added as an ashless dispersant for lubricating oil to provide improved engine cleanliness and low temperature performance without adversely affecting fluoropolymer seals and gasket eaves. This novel polymer is usually dissolved or dispersed in a refined mineral oil for the final addition of mineral or synthetic crude oil. The lubricating oil for internal combustion engines should preferably have a low pour point, good hip flow at low temperature, and good dispersion. The good dispersion clearly reflected by the cleanliness of the engine and the good low temperature performance allow the oil to flow at the lowest operating temperature, which is usually the case when the engine is started. In order to achieve supremacy and other expectations, we must use and add a variety of additives to improve the lubricant. Conventional additives include viscosity index improvers, pour point depressants, and detergent inhibitors, including ashless dispersants, gasification inhibitors, and antiwear agents. Ashless dispersants are mainly metal-free organic compounds, which are inversely proportional to those derived from inorganic metal salts, organic sulfonates, etc. of dispersants or detergent additives. The ashless dispersant is usually composed of a polymerized main chain containing polar functional groups in the side chain. Polar functional groups, generally referred to as nitrogen groups, are necessary to dissolve and suspend dirt and sludge in alkaline oil. Ashless dispersants containing pendant amino ester groups derived from ethylene-propylene terpolymers have been described in U.S. Patent No. 4,002,569. U.S. Patent No. 4,248,725 describes another class of nitrogen-containing ashless dispersants derived from polyisobutylene and other polyolefin backbone polymers functionalized with succinimide derivatives. This paper scale is applicable to the Chinese National Standard (CNS) A4 specifications (210 X 297 public goods) (please first ιν.ι-:. (.? «· 面 之 ·; ± & 作 项 #Fill in. ^ This page) • Installed and ordered. Printed by the Ministry of Economic Affairs Central Standard Resident Employee Consumer Cooperative ¾ 81.9.20,000 A 6 204359 V. Description of the invention (2) Ashless dispersion of nitrogen-containing basic comonomers such as polyisobutylene-based succinimide The composition has certain disadvantages, including sometimes repelling odors, or discoloration of the seals and gaskets made of fluorocarbon polymers such as Vito I »™ elastomers commonly used in automotive engines Or the deterioration of the effectiveness. The launch of small car engines operating at high temperatures implies that the amount of dispersant additives used relative to large engines is increased, and the engine is kept clean, so some commercial krypton dispersant additives The incompatibility of the engine sealing material is improved; the increased use of fi significantly improves the low temperature viscosity, resulting in poor crank engine startability. US Patent No. 3,5 98,7 3 7 shows an alkyl methacrylate Ester with 9 to 23 moles of Dong The poly (alkyl methacrylate) polymer with improved pour point prepared by hydroxyethylation after the copolymerization of methacrylic acid in a certain proportion, wherein the average number of large atoms in the alkyl group is 12.5 to 14.3. Lauryl methacrylate-stearic acid methacrylate copolymer with hydroxyethyl methacrylate having a molecular weight percentage of 23 gram described in US Patent No. 3, 2 4 9, 5 4 5 It can be used in oil products containing bisphenol anti-gasification agent. ^ Another technology to provide dispersant viscosity index improver. Application of polyalkyl (meth) acrylate described in European Patent No. 418610A , Its hold is that 80-95.5% by weight of the copolymer is derived from (C ^ -Cm) alkyl (meth) acrylate and 0.5-20% by weight is derived from (Ca-Ce) alkyl (methyl) Acrylic ester or polyalkyl gasified alkyl (meth) acrylate is derived, and 0-17% by weight is derived from alkyl (meth) acrylic acid. Japanese Patent No. JP 52-018202 is described by 92- 99% (Ci-C,) This paper is again applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 )) ≪ Please read the precautions on the back and write down this page) _Installed and ordered by the Ministry of Economic Affairs, Central Standards Bureau, Employee Consumers " printed by cooperatives 81.9.20,000 204359 Α6 lifi Ministry of Economics, Central Standards Bureau, Employee Consumer Cooperatives, printed five 3. Description of the invention (3) The alkyl methacrylate and 1-8% hydroxy (Ca-C3) alkyl methacrylate polymer and the number average molecular weight (Μη) pseudo 20,000-60,000 are used as machines Poly (methacrylate) polymer for processing oil additives. This polymer additive is not suitable for use as an engine oil additive. The prior art does not mention a substance with comprehensive dispersion power, compatibility with fluoropolymer sealing materials, and good low-temperature performance, and the object of the present invention is to provide a synthesis of the aforementioned qualities. The present invention relates to a polymer derived from the following monomers through polymerization: (a) about 70 to 90 weight; 1% of (L-tU) alkyl methacrylate and) alkyl acrylate Monomer and (b) about 10 to 30% of the replacement of monomers selected from hydroxy (CB-C ·) alkyl methacrylate and hydroxy (C * -C ·) alkyl acrylate, where the main bond is polymerized The number of atoms in the pendant androstane is about 8 to 14 on average. The polymer can be used as an additive for lubricating oil to provide good dispersion and low temperature performance without adversely affecting fluoropolymer seals and gaskets. When this novel polymer is used in lubricating oil, it is usually dissolved or dispersed in the refined mineral lubricating oil for final incorporation into mineral or synthetic crude oil. The various monomers used in the present invention may be a single monomer or a mixture of alkyl groups having different numbers of atoms. (A) Methacrylate and acrylate monomers and (b) Hydroxyalkyl methacrylate and hydroxyalkyl acrylate monomers. The alkyl portion is a major factor in the performance of the polymer of the present invention. . This means that the average number (η) of the main atoms (Cn) of the side chain alkyl and hydroxyalkyl groups of the acrylate or methacrylate backbone polymer needs to be selected to keep the polymer additives in new oil and old Solubility in oil, where the additive is used as a -5- copy of this paper and the general Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) 81.9.20 000 (please first ^ 背 之 注 念 # Item # 為 写 本) 2043 & 9 A6 ΗΓ, printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Instructions for invention (4) sludge dispersants. Generally, when the average Cn is less than 7, the resulting polymer has poor solubility in some crude oils, and the additives cannot fully play the role of dispersants. If the average Cn is significantly greater than the Cie of the engine oil formulation, it will produce poor low temperature fluidity. Low temperature means a temperature below about -5¾. Therefore, the average number of primary atoms of the alkyl group of the acrylate or methacrylate used to prepare the polymer additive is in the range of 8 to 14, preferably about 9 to 12. If the monomers are all acrylates or substantially all acrylates, the average number of sulfon atoms in the side chain alkyl groups of the main male polymer will change to match the solubility parameters of the corresponding methacrylate main polymer. This solubility parameter is well known in the industry. Preferably, the monomer (a) is selected from (C 丨 -C · ») methacrylate and (C ^ -C ·.) Alkyl acrylate, and the monomer (b) is pseudo-selected from the hydroxyl group (“ -C ·) Alkyl methacrylate and hydroxy (Ca-Ce) alkyl acrylate. The alkyl part of both can be linear or branched. With alkyl methacrylate and hydroxyalkyl methacrylate It is preferable to use alkyl methacrylates and acrylates in order to achieve a balanced expected performance relative to good dispersing power and low temperature performance. Therefore, in one embodiment of the present invention, the monomer (a) is generally From (i) about 0 to 20% of alkyl methacrylates or alkyl acrylates, wherein the alkyl group has 1 to 6 large atoms, and mixtures thereof, (ii) about 20 to 90% of alkyl methyl groups Acrylate or alkyl acrylate, wherein the alkyl group has 7 to 15 pour nitrate atoms, and mixtures thereof, and (iii) 0 to 40% of alkyl methacrylate or alkyl acrylate, wherein the alkyl group has 16 Up to 24 phosphorus atoms, and mixtures thereof, and the monomer (b) is composed of 10 to about 30% hydroxyalkyl methacrylate or (please gl? Back note * -pJ / i (Write this page)-Binding · Order-This paper size is applicable to @ 因 家 标准 （CNS) A4 specifications (210 X 297 mm) 81.9.20,000 Employee consumption of the Central Bureau of Standards of the Ministry of Economic Affairs Printed by cooperatives 204359 V. Description of the invention (5) Composed of hydroxyalkyl acrylates, wherein the alkyl group has 2 to 6 値 塪 atoms, and is replaced by one or more hydroxyl groups. All percentages are based on weight, and based on total polymer reset , And the total amount of (i), (ii), (iii) and (b) is equal to 1QQ% of the weight of the polymer. The amount of (i) in the polymer is preferably in the range of 0 to 5%, with 0 % Is preferable; (ii) the amount should be in the range of about 35 to 70%, preferably 50 to 60%; (iii) the amount should be in the range of about 20 to 35%, with 20 to 30% Good; and (b) The amount of 傜 is in the range of about 10 to 20%, preferably 15 to 20%. Monomer (a), that is, alkyl methacrylic acid with an alkyl group having 1 to 6 atoms Ester or alkyl acrylate vinegar, also known as "law-cut" alkyl methacrylate or alkyl acrylate, examples of which are methyl methacrylate (MMA), methyl and ethyl acrylate, propylene methacrylate Ester, methacrylic Butyl ester (BMA) and butyl acrylate (BA), isobutyl methacrylate (IBMA), hexyl methacrylate and cyclohexyl methacrylate, cyclohexyl acrylate and combinations of the Alex. The preferred ones are methyl methacrylate and butyl methacrylate. Monomer (a), an alkyl methacrylate or alkyl acrylate having 7 to 15 primary atoms, also known as "mid-cut" alkyl methacrylate or alkyl acrylate, examples of It is 2-ethylhexyl acrylate (EHA), 2-ethylhexyl methacrylate, octyl methacrylate, decyl methacrylate, isodecyl methacrylate (IDMA, composed of branched (C10) alkyl Composed of a mixture of base isomers), undecyl methacrylate, dodecyl methacrylate (also known as lauryl methacrylate), tridecyl methacrylate, tetradecyl Methacrylate (also known as myristyl methacrylate), pentadecyl methacrylate and combinations of the above. Can also be used · Dodecyl-7- This paper is again applicable to the Chinese National Standard (CNS> A 4 specifications (210 X 297 mm) 81.9.20,000 (please read the precautions on the back and then write this page ) • I installed. Ordered · 204359 A6 ΒΓ > Printed by the Consumers ’Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention Instructions (6)-Pentadecyl Methacrylate (DPMA), which is dodecyl, thirteen A mixture of straight and maleic and tertiary isomers of alkyl, tetradecyl and pentadecyl methacrylates; and lauryl-myristyl S-methacrylate (LMA), which is dodecyl and + A mixture of tetraalkyl methacrylates. The more preferred are lauryl-myristyl methacrylate and isodecyl methacrylate. Single amine (a), that is, an alkyl group with 16 to 24 atoms Alkyl methacrylate or alkyl acrylate, also known as "high-cut" alkyl methacrylate or alkyl acrylate, an example of which is cetyl methacrylate, heptadecyl methyl Acrylate / octadecyl methacrylate, nonadecyl methacrylate, cosyl methacrylate, dioctyl methyl Acrylates and combinations of the above. Can also be used. • Cetyl-Eicosyl Methacrylate (CEMA), which is hexadecyl, octadecyl, cosyl and bisalkyl methacrylate Mixture; and cetyl-octadecyl methacrylate (SMA), which is a mixture of hexadecyl and octadecyl methacrylate. Among them, hexadecyl- dioctyl methacrylic acid Ester and hexadecyl-octadecane methacrylate are the most desirable. The above "mid-cut" and "high-cut" alkyl methacrylate and alkyl acrylate monomers are usually technical grades The long-chain fatty enzymes are made by para-esterification, and the alcohols supplied by this industry are mixtures of alcohols with different yams of alkyl groups having 10 to 15 or 16 to 20 sulfonic atoms. Therefore, based on For the purpose, alkyl methacrylate includes not only different alkyl methacrylate products, but also a mixture of mainly specific alkyl methacrylate and alkyl methacrylate. Use this commercially available alcohol Preparation of acrylate and methacrylate can produce the above LMA, DPMA, SMA and CEMA -8-(Please read the notes on the back of the station before writing this page) This paper is again applicable to the Chinese National Standard (CNS> A 4 specifications (210 X 297 «Centimeter) 81.9.20,000 204359 Λ6Mf. V. Description of the invention (7) Monomer mixture. Examples of monomer (b) Pseudo-alkyl alkyl methacrylate and acrylate monomers with one or more hydroxyl groups, especially pseudo-hydroxy groups appear in the alkyl group It is-address (2-address). Hydroxyalkyl methacrylate and acrylate monomers with substituted alkyl as branched or unbranched (Ca-Ce) alkyl are preferred. The hydroxyalkyl methacrylates and acrylate monomers suitable for the present invention include 2-hydroxyethyl methacrylate (HEMA), 2-hydroxyethyl acrylate, 2-hydroxypropyl methacrylate, 1 -Methyl-2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 1-methyl-2-hydroxyethyl acrylate, 2-hydroxybutyl methacrylate and 2-hydroxybutyl acrylate . Preferably, hydroxyalkyl methacrylate and acrylate single system HEMA, methyl-2-hydroxyethyl methacrylate and 2-hydroxypropyl methacrylate. The mixture of the latter two monomers is commonly referred to as "hydroxypropyl methacrylate" or HPMA, which is the more preferred hydroxyalkyl methacrylate. The preferred monomer of the polymer (a) is composed of monomers (i) derived from one or more of methyl methacrylate, butyl methacrylate and isobutyl methacrylate, (ii) selected from one Or a variety of 2-ethylhexyl methacrylates, isodecyl methacrylates, dodecyl-pentadecyl methacrylates, and lauryl-mung bean S-based methacrylates, (iii) pseudo Choose from one or more of hexadecyl-octadecyl methacrylate and hexadecyl- methyl methacrylate (please read ¾ the notes on the back and then write this page) Central Bureau of Economic Affairs β Industrial and Consumer Cooperatives Indo-China Propylene 1-Methylbutyl-1-Hydroxymethyl, 2-Acrylate and Ethyl Acrylate Hydroxyacrylic Acid 2-ylacrylic Acid Methyl Propolypropyl or Promethoxyl Hydroxy 2-yl From 2 1 one ~-, the ester hydroxy series acid 2-} acid ene, (b allyl ester methyl propyl methacrylate and ethyl propane, hydroxyethyl ester 2-hydroxyacetic acid, -hydroxyenyl ester 7-Propionyl-2-ylenyl methyl paper standard is applicable to the Chinese S family standard (CNS> A4 specifications (210 X 297 mm) 81.9.20,0 (A6 Printed by the Consumer Consumption Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs BΓ ) _ Fives, Description (8) based acrylate. The preferred polymer monomer (a) is about 50 to 60% lauryl-myristyl methacrylate and about 20 to 30% cetyl-20 Hospital-based methacrylate, and monomer (b) is 10 to about 20%, preferably about 15 to 20% of 2-hydroxypropyl methacrylate and 1-methyl-2-hydroxyethyl methyl A mixture of propionate esters. Another preferred polymer in the polymer (a) is about 80 to 90% of alkyl methacrylate or alkyl acrylate, where the alkyl group has up to 14 bowel atoms , And mixtures thereof, and monomer (b) is 10 to about 20% by weight of alkynyl (Ca-C3) alkyl methacrylate or acrylate and mixtures thereof. Another preferred polymer is monomer Body (a) about 80 to 90% of lauryl-myristyl methacrylate and monomer (b) pseudo 10 to about 20% of 2-hydroxypropyl methacrylate and 1-methyl-2 -A mixture of hydroxyethyl methacrylates. In addition to the average number (η) of the main atoms (Cn) of the maleic and hydroxyalkyl groups of acrylate and methacrylate main male polymers, methacrylic acid Ester and acrylate monomers The original characteristics of the alkyl part are also a major factor in the performance of the polymer of the invention. For example, (C, -Ce) alkyl methacrylate or acrylate, (CT-Cie) alkyl methyl The binding body of acrylate or acrylate and (Cie-ca4) alkyl methacrylate or acrylate can be copolymerized with hydroxyalkyl methacrylate to make the average side atom number of the alkyl side of the polymer about 1 0 In this case, the solubility of polymer additives in new and old oils is well balanced, and the additives are used as a sludge dispersant. In addition, the (C16-C, 4) alkyl methacrylate part of the polymer -10- (first read-note Φ on the back and then fill in this page) 丨 Installation_ Order_ This paper is also applicable to the Chinese national standard (CNS > A 4 specifications (210 X 297 mm > 81,9.20,000 A6 Ministry of Economic Affairs Central Standards Bureau staff consumption 1Ϊ · Cooperative printed ¾ V. Description of the invention (9) Copies of wax and crude oil Interaction of the viscous components leads to the improvement of low-temperature fluidity, such as tackiness. On the other hand, if the single (〇〃) * (“: ·) alkyl methacrylate monohydric system and hydroxyalkyl methacrylic acid The average number of atoms in the alkyl side chain formed by ester copolymerization is about 10, and the resulting polymer additives will have satisfactory oil solubility, but only slightly wax interaction, so even if the two polymers The Cn value is close to the latter, but the latter will not have a significant effect on the low-temperature fluidity W. Therefore, in order to obtain good low-temperature hospitality while maintaining a good solubility balance in the new oil and »oil, the best monomer (a ) A part of 傜 from about 0 to 30, preferably 10 to 30% by weight (Cie-Ca <) alkyl methacrylic acid And (Cie-Ca <) alkyl acrylate, the alkyl part of which is preferably Cle to CaD. Because the high-cut alkyl methacrylate and acrylate are pseudo-muglike, they can be used as pour point depressants In order to change the structure or morphology of the moth body in crude oil at low temperature. The amount of high-cut alkyl methacrylate or acrylate depends on the pending high-cut alkyl methacrylate or acrylate, crude oil The characteristics and expected low temperature characteristics. Generally speaking, the larger the number of atoms in the alkyl part, the more the monomer-like appearance of the monomer, the less the amount of magnesium. Based on the high-cut alkyl methacrylic acid The cool system is in the shape of eels. Excessive dosage will lead to freezing and freezing in crude oil and loss of low-temperature fluidity. The optimal ratio of high-, aid- and lov »-cut alkyl methacrylate depends on the crude oil used in preparation and the The expected performance level. The alkyl atomic weight (Cn) of the balanced formulation is pseudo in the range of about 9 to 12. Generally, the weight average molecular weight (Mw) of the polymerized lubricating oil additive of the present invention is about 20, 000 to 100,000 range (penetrated by the gel (please first Read ^ 1? And; ± * matters again?!? 1? This? 1)-Binding-Order · This paper size is applicable to the national standard (CNS) A 4 specifications (210 X 295 · mm) 81.9. 20,000 2〇43 ^ s Λ6 ΗΓ, printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs: ¾ V. Description of the invention (10.) Chromatographic analysis (GPC) using poly (alkyl methacrylate) quasi-test) ; The Mw is preferably in the range of about 30,000 to 75,000. The MW of the present invention is greater than about 100, the polymer of Q00 will have poorer shear stability than the polymer with lower Mw. If high amounts of polymer halo additives are used to meet the dispersing power requirements of small engines, it will cause excessive embedding of formulated oils. Those who are familiar with this should know that the molecular falsification referred to in this article is related to its conclusive method. For example, the molecular weight measured by GPC can be quite different from the molecular weight calculated by other methods. The molecular weight itself is irrelevant, the important thing is the handling characteristics and performance of the pseudo-polymer additives (dispersion and fluidity under use conditions). The shear stability index (SSI) is directly related to the molecular weight of the polymer, and the loss rate of the viscosity given by the polymer additive under the action of shear force is used as the setting standard. It can be based on ASTM D- 2 6 0 3-9 1 (USA The method specified by the Association for Testing and Materials) sets the shear time to 12.5 minutes and measures the stability of the wave shear force. In general, the higher molecular weight polymer will have a relatively lower maximum molecular weight under high shear conditions, so the higher molecular weight polymer also exhibits the largest SSI value. The range of the polymer of the present invention ranges from 0 to about 25%; the SSI of the preferred polymer ranges from 0 to about 10%. The expected SSI value can be obtained by changing the polymerization inversion conditions, such as the amount of arsenic conversion agent. The polymer of the present invention is prepared by mixing monomers (a) and (b) in the presence of a polymerization initiator, a diluent and an optional chain inverting agent. The reaction is carried out in the inert atmosphere at a temperature of about 60 to 140 ° C, preferably 115 to 1251C, by means of searching and mixing. Usually the reaction will exotherm to the polymerization temperature of 115-120Ό-1 2- (please read the note on the back & matters on this page to write this page) · —Installation · Order · 丨 Line. This paper size applies to national standards ( CNS) A 4 specifications (210 X 297 mm) 81.9.20,000 A6 H (i 204359 V. Description of the invention (11 ·) degree. The reaction usually takes about 4 to 10 hours until the expected degree of polymerization is reached. It should be understood that the reaction time and temperature depend on the initiator selected and can be changed. The initiator used in this polymerization is any conventional free radicals such as pergasification, hydroperoxides and even krypton initiators. Generated compounds, including acetaldehyde gasification, benzoaldehyde gasification, laurelaldehyde gasification, tertiary butyl gasification isobutyrate, hexamethylene gasification, anisin hydroperoxide, 1,1- Di (tertiary-butyl pervaporation) -3,3,5-trimethyl hexane, azobisisobutyronitrile and tertiary butyl peroctoate. The initiator concentration generally accounts for the total monomer 0.002 5 to 1% by weight, preferably from 0.05 to 0.25%. It is also possible to add a chain conversion agent in the polymerization reaction to control the polymer The preferred conversion agent is an alkyl mercaptan such as lauryl (dodecyl) mercaptan, etc., and the concentration of the chain conversion agent is approximately between 0.1 and 2% by weight. Diluent suitable for polymerization Pseudo aromatic hydrocarbons such as benzene, toluene, xylene, and naphthas, atmospheric hydrocarbons such as ethylene dichloride, esters such as ethyl propionate or butyl acetate, and petroleum or synthetic Lubricant, etc. After polymerization, the polymer component of the resulting polymer solution is between about 50 and 95% by weight. The polymer can be used directly in mineral or synthetic crude oil, or polymer and diluent after isolation The solution can be used in a concentrated state. When used in a concentrated state, an additional diluent (paraffin crude oil) can be used to adjust the polymer to a desired degree. The concentration of the concentrated polymer should be between 30 and 70% by weight. If the concentrate is directly incorporated into the lubricating crude oil, the preferred diluent is any kind of mineral oil, such as -1 3 that is compatible with the final lubricating crude oil.-This paper scale is applicable to the Chinese National Standard (CNS> A4 specifications (210 X 297 )-Installation _ order · line. The Ministry of Economic Affairs Central Standards Bureau employee consumer cooperatives printed 5 · «. 81.9.20,000 A6 ΒΓ > 204359 Fifth, the invention description (1Z) (please note the back of WA-I1 -it item and then 塡Write this page) 100 to 150 neutralizing oil (100N or 150N oil). When the polymer of the present invention is added to lubricating crude oil, no matter it is added. As a pure polymer or in the form of a concentrate, lubricating crude oil The final concentration of the polymer is approximately Q. 5 to 15% by weight, preferably 1 to 8%, depending on the needs of the specific application. Lubricating crude pseudo-mineral oil type (stone pan or naphtha) or synthetic Type (Polyene). Some lubricants contain pour point depressants. However, in the formulation component using the polymer of the present invention, if a part of the hexadecanezide-tallow methacrylate pseudopolymer composition is added, the addition of a separate pour point depressant can be omitted. The polymer of the present invention is evaluated by various performance test methods conventionally used for lubricating oils, and will be described in detail later. Order. The compatibility of the ashless dispersion of the present invention will be compared with those of industrial nitrous ashless dispersants in the VE test, according to the conditions described in ASTM Research Report No. D-2: 1002 at low temperature And the sludge dispersion characteristics of additives under medium temperature operating conditions. The Ministry of Economic Affairs, Central Standard Workers' Consumer Cooperative Printed The composition of the present invention will also be compatible with fluorocarbon polymers, depending on the compatibility of the Vit ο η ™ fluoroelastomer. This test (Example 9, engine seal compatibility test) is used to assess the compatibility of the lubricating oil additive of the present invention with materials such as engine seals and collars. The test is carried out by immersing the seal or gasket material in the fluid containing the tested lubricant additive sample for up to 7 days, and then measuring its elongation characteristics (percent elongation to break or% ELB). The relative acceptance value of% ELB is between zero and -5%, which means neutral, which is compatible with engine seal. The composition of the present invention will undergo a test designed to determine the viscosity properties at high shear rates and low temperatures, the CCS test. In this case, it was split into -14-81.9, 20,000 pieces of paper again applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) A6 ΗΓ printed by the Employee Consumer Cooperative of the Central Standard Rating Bureau of the Ministry of Economic Affairs. Invention description (13.) The viscosity of the oil should be low enough to allow the engine to start fully while providing proper lubrication for all engine parts. The low-temperature shaking chess pseudo-system (CCS) test (Example 10) determines the apparent viscosity of the engine oil under the most difficult conditions of engine shaking and starting, and is carried out according to the method defined by ASTM D- 5 2 9 3-9 2. For example, the SAS 5W-30 grade oil has a CCS viscosity of 35 poise at -25 °, as required by SAE (Association of Automatic Engineers) J300 oil viscosity classification (January 1991). Some ashless dispersants composed of nitrogen-containing additives such as polyisobutane-succinimide type cannot meet the CCS test requirements for high-volume small engines, nor have they passed the engine seal compatibility test (infra ). Since the additives of the present invention provide low CCS viscosity (Example 10), high concentration crude oil with higher viscosity can be used. This high cobalt crude oil can provide a cheaper cost than low crude oil, but it cannot be used as widely as traditional ashless dispersants. Therefore, the polymer of the present invention can provide a wide range of applications of the heavier crude oil in formulated oils, and thus constitute a lower cost, reduce fuel consumption fi and a cleaner engine, because the heavier crude oil is less volatile than low viscosity crude oil , And reduce the generation of piston build-up especially under high temperature operation of diesel engines. The pour point of an oil formulation is an indicator of its relative performance at low temperatures for residual fluids, and is interpreted as the temperature at which the oil body no longer flows. The polymer of the present invention will be evaluated in Example 11 for its pour point drop characteristics. The following examples serve as a further description of the present invention, and are not intended to limit the scope defined in the patent application scope of the present invention. Unless otherwise noted, all ratios and percentages are by weight and all reagents are of good industrial quality. Examples 1 to 7 of the preparation of the polymer of the present invention, and Shi-15-This paper scale is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297) 81.9.20,000 (please read ^-; Face-to-face; 1 note book to write this page). — 装 _ end.

A6 BG 2043 ^ 9 5. Description of the invention (14-) Examples 8 to 11 provide performance information of oil formulations containing the polymer of the present invention. Example 1 Using 30.0 parts of cetyl-eicosyl methacrylate (100%, 95% purity), 50.0 parts of lauryl-myristyl methacrylate (100%, 9 8% bluntness), 20.0 parts of hydroxypropyl methacrylate, 1.90 parts of dodecyl mercaptan, 0.29 parts of third butyl peroctoate (third butyl peroxy-2- Ethyl hexanoate) and 10.0 parts of crude larvae (100N oil) to prepare a monomer mixture. Part of the above monomer mixture (30%) is added to a Thermowatch equipped with a thermometer and temperature control, with a nitrogen outlet, 1 «mixer, a water-cooled reflux condenser with a nitrogen inlet, and an additional funnel to control the nitrogen addition of the monomer mixture Wash the flask. Heat the contents of the flask to 105t :, control any exothermic effect by cooling to keep the temperature at 120t: the following; if the exothermic effect does not start at 1Q51C temperature after 5 minutes, slowly heat to 1 1 5-1 2 0 13 Until the heat begins. When the temperature reached 115υ during the exothermic action, the remaining monomer mixture (70 parts) was added uniformly during 60 minutes while cooling to control the exothermic action below 1251C. Keep the temperature at 115-12 ° for another 30 minutes. At this time, an initiator feed of 0.2 parts of tertiary butyl peroctoate dissolved in 8.4 parts of 100 H oil was added to the flask at a temperature of 115-120 * 0 for 60 minutes. . The monomer conversion rate was 98.1% and about 105 parts of 100 ΙΓ oil was added so that the final polymer solid content was 43.5%, the viscosity was 79 centistokes (centistokes) (at 210T) and SSI (12.5 minutes) was 1. 4. -1 6-The size and degree of this paper are compliant with the Chinese home-made standard guide (CNS> Flat 4 specifications (210 X 297 mm) (please read the notes on the iftlf page first and fill out this page). Installation and ordering. Ministry of Economic Affairs Printed by the Central Bureau of Standards for negative labor consumption cooperation *, 81.9.20,000 204359 A6 1 «; Printed by the Central Standards Bureau of the Ministry of Economic Affairs, and printed by the cooperative; 5. Description of the invention (j5.) Example 2 Repeat the steps of Example 1. The only monomer mixture is composed of 30 parts of hexadecyl- arachidyl methacrylate, 60 parts of lauryl-mung bean S-based methacrylate and 10 parts of hydroxypropyl methacrylate Composition. The final monomer conversion rate is 96.8¾, and the final polymer component of the reaction batch is 44.5% after dilution with 100N oil, and the viscosity is 55 centistols (under 210) and 331 (12.5 minutes). It is zero. Example 3 The procedure of Example 1 is repeated, except that the monomer mixture is composed of 30 parts of cetyl-eicosyl methacrylate and 65 parts of lauryl-myristyl methacrylate, It is composed of 5 parts of hydroxypropyl methacrylate and 1.75 parts of dodecyl mercaptan. In addition, after dilution with oil It takes about 30 minutes at 115-1201. The final monomer conversion rate is 96.8%, the final polymer composition of the reaction batch is 47.6%, and the viscosity is 59 centistokes (at 210 ° F). Example 4 Repeated implementation In the procedure of Example 1, the monomer mixture is composed of 30 parts of cetyl-eicosyl methacrylate, 50 parts of lauryl-myristyl methacrylate, and 20 parts of hydroxypropyl methyl Acrylic acid ester, consisting of 0.8 parts of dodecyl mercaptan and 0.17 parts of 100N oil; in addition, 3.05 parts of 100N oil is added to the original In a flask with a 30% mono-acrylic mixture. The final conversion rate of the single wax is 95 * 0%. Example 5 Repeat the steps of Example 1 except that the monomer mixture is composed of 16 parts of 30 parts ： Vi * Bian Xiang Zai 吡 写 本 Π) 丨 Installed and bound paper is again applicable to China ’s Sleepy Family Standard (CNS) A 4 specifications (210 X 297 mm) 81.9.20,000 204353 A6 B6 Ministry of Economic Affairs Central Standards Bureau employee elimination # Cooperative printing «V. Description of the invention (16.) Alkyl-Ethyl methacrylate, 50 parts of lauryl-myristyl methacrylate, 20 parts of hydroxy Methacrylic acid ester • 0.9 parts of dodecyl mercaptan and 0.17 parts of 1 Q 0 N oil; in addition, before adding the rest of the monomer mixture slowly, 3.0 parts The 1Q0N oil was added to the flask with the initial 30¾ single run mixture. The final single conversion rate was 96.7%. The polymer solutions of Examples 4 and 5 were combined and diluted with 1Q0N oil to form a final polymer composition of 45% The viscosity is 229 centistols (at 210T) and SSI (12.5 minutes) is 5.5. Example 6 The procedure of Example 1 was repeated, except that the monomer mixture consisted of 30 parts; ^ hexadecyl-eicosyl methacrylate, 50 parts of lauryl-myristyl methacrylate, 20 parts Composed of hydroxypropyl methacrylate and 0.85 parts of dodecyl mercaptan. The final conversion rate was 95.5%, the final polymer composition of the reaction batch after dilution with 10 ON oil was 45.7%, the viscosity was 513 centistols (at 210T) and the SSI (12.5 minutes) was 8.4. Example 7 Using 31.5 parts of cetyl-eicosyl methacrylate (100% based on 95% purity), 58 parts of isodecyl methacrylate (100% based on 98% purity), A monomer mixture was prepared with 10 parts of methyl methacrylate and 10 parts of hydroxypropyl methacrylate. Then the monomer mixture, 21. 9 parts of 100 K oil and 0.5 5 parts of dodecyl mercaptan were added to a Theraowatch equipped with a thermometer and temperature control, with a nitrogen outlet, stirrer, nitrogen inlet and additional funnel The water-cooled reflux condenser was purged with nitrogen gas in the bottle. Heat the contents of the flask to ll〇t: and keep it at this temperature; after 30 minutes, four kinds of _ 1 8-(please read the note on the back & the entry and then write the book π) 丨 Package · Order- Line · This paper is also applicable to the Chinese National Standard (CNS) Grade 4 specifications (210 X 297 mm) 81.9.20,000 A6 ΙίΓ »20435 ^ V. Description of the invention (17.) The first of the delays caused by the addition of it is added to it The first two contain 1,01-bis (third butyl peroxy group) _3, 3, 5-trimethyl hexane dissolved in 0.012 parts of 0.012 parts of 0.64 parts of 1QON oil. After 30 minutes, a second delayed initiator that is the same as the first delayed initiator is added. After another 30 minutes, add 0.13 parts of 1,1-bis (third butyl peroxy group) dissolved in 1.28 parts of 100 N oil to the third extension of 3,3,5-trimethylcyclohexane Initiator. Thirty minutes after the advance, the fourth delayed initiator, which is the same as the third delayed initiator, is added. The conversion rate of the final package is 96.1%, the final polymer composition of the reaction batch diluted with 100H oil is 53.5%, the viscosity is 772 centistols (at 210T) and the SSI (12.5 pupil) is 12.7. Example 8 The performance of the ashless dispersant of the present invention added to a series of VE tests (engine cleanliness) is shown in Table 1. The sludge value listed in Table 1 refers to the covered sludge on the rocker arm after 10 days (intermediate observation) and the average sludge after 12 days (the target value is 9.0, with 10.0 representing the cleanest engine). Each of the formulations F to Q contains 2-6% of the ashless dispersant additive tested, 10.5% of the industrial DI (detergent inhibitor) specially made for the dispersion viscosity index improver (manufactured and sold by Anioco Chemicals) Amoco PC-8004), 4.6% non-dispersed viscosity index (VI) modifier (Acryloid 70 2 poly (alkyl methacrylate) type manufactured and sold by Rohn and Haas Co), the remaining (79-84% ) It is composed of Shipan crude oil (Exxon 100N oil); in addition, all the ingredients contain 0.01% antifoam solution of DCF-200 silicone fluid manufactured and sold by Dow Corning Corp. Industrial DI groups generally have anti-wear or anti-gasification components such as zinc dialkyl dithiophosphate; such as amber made of polyisobutane-1 9- This paper is generally applicable to China Yuanjia Standard (CNS ) A4 specifications (210 X 297 Gongmeng) < Please read the notes on the back of the merits first and then fill out this book) 丨 installed. Ordered. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 81.9.20,000 ^ 0 4 * 3 ^ 9 Α6 Bfi V. Description of the invention (18.) Bait-free ash-free dispersion of aldimine etc. thin I; detergents such as metal phenates or sulfonates; friction improvement agents such as sulfur-containing organics; And anti-foaming agents such as silicon fluid. The tested ashless dispersant additive has the following composition: F: poly (65LMA / 30CEMA / 5HPMA) G: poly (9MHA / 53IDMA / 29CEHA / 9HPMA) H, J. K: poly (60LMA / 30CEMA / 10HPHA) L : Poly (50LHA / 30CEMA / 20HPMA) Μ, Ν: Poly (50LMA / 30CEMA / 20HPKA) HHA series methylmethacrylate and IDKA series methacrylate isodecyl. The formulation Q Ye uses the industrial nitrogen-containing ashless dispersant additive (Aboco 9250) and the formulation R does not add the ashless dispersant additive control sample; NA means no determination. (Please read ¾ the back of the '; ± & this book and then write down the book Η) _installed · booked · Printed by the Employee Respiratory Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs -20- This paper standard is applicable to China National Standard (CNS) A 4 Specifications (210 X 297 mm) 81,9.20,000 204359 A6 m V. Description of the invention (19.) Table 1 VE test series (engine cleanliness) The ash-free defeat agent sludge formulation is used in% addition. % HPMA (rocker arm covers R 0 3.9 / MA Q 2 096 9.4 / 8.6 Q 2 0% 9.3 / 7.8 F 2 5% 7.5 / HA G 2 996 4.9 / 4.3 Η 2 1096 9 .0 / 7. 9 I 4 1096 9.4 / 6.5 J 6 1096 9. 4/9. 1 L 2 2 0 96 9.6 / 8.7 Μ 3 2 096 9.3 / 8.8 Η 4 2 096 9.4 / 9.2 (Please read the note on the back ¾ (Fill in this page) • Installed. Ordered. #H The Ministry of Economic Affairs Central Standards Bureau staff eliminates the above data printed by the cooperative to show that increasing the amount of HPMA in the ashless dispersant additive itself or increasing the amount of additive used to suspend the HPMA in the formulation When it is increased, the cleanliness of the engine will be improved. The addition of ashless dispersion containing methyl methacrylate (Formulation G) will not show better performance than those without methyl methacrylate. The average number of nitrate atoms in the alkyl side bonds of the polymer is balanced to -21- 'This paper scale is applicable to the Chinese Standard (CNS) A 4 specifications (210 X 297 mm) 81.9.20,000 A6 ΜΓ. Economy Printed by Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry 5. The importance of the invention description (20.) to the expected solubility characteristics of additives. The ashless dispersant of this invention containing 10 to 20% of HPM A (not nitrogen-containing) The formulation and industrial cyanide-containing ashless dispersion formulation Q have similar overall engine cleanliness, but the inventors still have compatibility with Vitori »* fluoropolymer engine sealing materials and as in Example 10 ( Formulation C) has additional advantages such as better low temperature performance. Formulation Q provides desirable engine cleanliness, but is incompatible with fluorine-containing sealing materials as described in Example 9. Example 9 The present invention The composition will accept cyanohydrocarbon polymers such as engine seals and gaskets, especially the Viton ™ fluoroelastomer compatibility test (engine seal material compatibility test). The seal or gasket material will be used during the test Impregnated with ash-free dispersion The additive in the fluid, and the embodiment under similar conditions using a S3A dumb-bell test Η by IS0-37-1977 (E) procedure (International Organization for Standardization (ISO nC45) Development of Technical Committee). The evaluation method is as follows: • Immerse three S3A dumbbell-shaped test pieces made of Viton® fluoroelastomer (AK6) into a test solution in a beaker, and use 80 parts of test solution (volume / volume) for each test piece 9 Test solution (Exxon 150N oil) Contains 4.5-6.7% (by weight) of the tested ashless dispersant composition. Then cover the beaker with a cover glass and place it in the blast tt held at 149-151¾. The sample was left for 7 days under the above conditions, and then taken out to be cooled, and rinsed with hexane to remove residual test liquid. After bending, the specimen is air-dried, and its tensile strength (tensile strength at break or TSB) and elongation at standby (% elongation at break or% ELBh Vi The change of the elongation or tensile strength of the ton ™ gel sample will be the same as -2 2- This paper is again in accordance with the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) 81.9.20.000 (please read first The i ± -fr? -Jt item on the back will be written on this page) Γ-装. Ordered-Printed by the Ministry of Economic Affairs Central Standard Resident Consumer Cooperative. V. Description of invention (21.) The extension of the VitoiP * bullet test sample processed Compared with the tensile strength data, the result is expressed as a percentage: [% ELB (treated)-% ELB (untreated)] X100 =% ELB change [% ELB (untreated)] Similar notation is used for calculation The change in tensile strength at break (% TSB change). The more the% ELB change value becomes negative, the stronger the cohesiveness of the test liquid to the Vito η ™ fluoroelastomer sample. Under the above test conditions, it leads to The original (untreated) 96 ELB value reduction rate of 45% (expressed as% ELB = -45%) is considered to be agglomeration of the sample Very strong, so it is incompatible with Viton ™ fluoroelastomer engine sealing materials.% ELB changes and% TSB changes between zero to -5¾ and zero to about -15% represent neutral conditions, so they are compatible with engine sealing materials Content.% ELB change and% TSB change value between about -20% and -30%, that is, use a negative value, indicating poor compatibility of the sealing material. The results of% ELB &% TSB are subject to the implementation of the dipping test and The holding support I * used is quite large, and the results of the untreated samples for comparison and the newly impregnated samples should be comprehensively summarized. The ashless dispersant of the present invention and the representative industrial nitrogen-containing ashless dispersion The compatibility of the engine seal material compatibility test of the agent is shown in Table 2. The sample of Vit ο ri ™ fluorine-containing rubber will be immersed in the test solution (Exxon 150N oil) containing the listed additives.% ELB changes and The% TSB change value is expressed as the average value of the three samples tested by each test solution. -23- This paper standard is commonly used in the Sa family standard (CNS) A 4 specifications (210 X 297 mm) 81.9.20,000 < please Read the notes on the back before writing this page) i installed. Ordered · 204359 A6 Bfi 5. Description of the invention (22 ) A-comparative example: 0L0A 1200 (nitrogen-containing, supplied by Chevron Chemicals) B-comparative example: Anoco 9250 (nitrogen-containing, supplied by Amoco Chemicals) C-comparative example: Hitec 646 (nitrogen-containing, supplied by Ethyl Corporation) on List the components of the ashless dispersant full pseudo-industrial detergent inhibitor (DI) kit composition, especially for the basic raw materials of mineral oil. Compositions D and E represent the polymerized ashless dispersant of the present invention. Add thin | (Monomer type and composition) (CEMA series cetyl-icosyl methacrylate, LMA pseudo-lauryl-meatzyl Methacrylate, HPMA (hydroxypropyl methacrylate): D LMA / CEMA / HPMA (60/30/10) E LMA / CEMA / HPMA (5 0/3 0/2 0) Central Bureau of Standards, Ministry of Economic Affairs Employee Consumer Cooperative Print ¾

Ashless dispersant AABBCCDDEE Table 2 Engine seal material compatibility test using%% TSB change -53 -5 3 -5 9 -63 -53 -52 -1 2 -1 1 -1 2 -10 -2 4-% ELB Variation -43 -44 -49 -55 -42 -42 81.9.20,000 (please read the note on the back first ^ then write this page)

Printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A6

Rf> V. Description of the invention (23 ·) Example 1 〇 The performance of the ashless dispersant additive of the present invention is shown in Table 3 in the low-temperature shaking chess pseudo-system (CCS) test. The blend of additives to be tested (industrial nitrogen-containing additives and those of the present invention (non-nitrogen-containing)) is a mixture of thrashing additives, about 5% of non-dispersed VI improver (Acryloid 7 0 2) and push The amount of the following industrial DI kit composition (for the minimum dispersion strength (VE Shitou test), see Example 8) and the calculated amount of Exxon 100N and 150N oil to blend with SAE 5W-30 oil It is made according to the viscosity requirements of the product (according to SAE J300 oil viscosity classification (January 1991)). Prepare the following three formulations according to the aforementioned method, each of which is based on the industrial kit composition used. Formulation A: 6.3% Hitec X-5764 DI kit composition,

Ethyl Corporation manufactures and sells Formulation B: 10.6% 0L0A 8380 A DI set composition,

Chevron Chenical's Formulation C: 10. 5% Amoco PC-80 04 DI set composition, A b 〇c 〇C henica 1 Manufactured and sold in each formulation with different amounts of additional ashless dispersant additives to improve formulation The dispersion force of the substance and the effect of measuring the viscosity of CCS. The ashless dispersant used in the present invention is a poly (50-60 LMA / 30 CEMA / 10-20 HPMA) composition and is listed in Table 3 as the inventor; the formulation A uses 10% HPKA composition And formulations B and C use 20% HPMA. -25- This paper scale is applicable to the Chinese National Standard (CNS) 4 specifications (210 X 297 mm) 81.9.20,000 (please read the notes on the back, and then fill in the VT page) _ _ order. 2〇 4 Lake A6 B (; Fifth, the description of the invention (24.) Table 3 Low-temperature shaking simulation system (CCS) test ashless dispersant preparation type% -25 t CCS viscosity Po A-2 3.8 AH itec 64 6 2 3 0.6 AH itec 646 4 36.4 # AH itec 64 6 6 44.0 # A present invention 2 25.3 A present invention 4 25.8 A present invention 6 2 6.3 B-3 0.7 B 0L0A 1200 2 34.5 B present invention 2 32.4 C 29.4 C Amoco 9 2 5 0 2 33.2 c The present invention 2 3 0.8 (please read the notes before 1n and then fill out this page)-Pack · Order · .4. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs * The viscosity exceeds the specification Specified 3 5 Poise below 2 6 This paper is again in accordance with the Chinese and Western National Standards (CNS) A 4 specifications (210 X 297 mm) 81.9.20,000% Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A6 Ββ V. Description of the invention (25 ·) In the formulations of each group, the use of the ashless dispersant of the present invention and the use of industrial The ashless dispersant found that the inventors will lead to a lower CCS viscosity under the comparison of equal suspension. Example 11 The pour point is pseudo-measured according to the procedure of ASTM D- 9 7-6 6, which is used to reduce the pour point of a specific amount Additive (PPD) additive is added to a crude oil, the resulting processed oil is subjected to temperature cycling in a low-temperature broadcast to determine the pour point in t: Table 4 contains various poly (50-60 LMA / 30 CEKA / 10-20 HPMA) Pour point data (I) of the composition. Table 4 Tack drop (υ)% in PPD HPMA 〇You Exxon 100N 0.15 -21 *% in oil PPD 0.30 -21 # Exxon 6 0 0 N 0.15 -12 *% of oil PPD 0.30 -12 * 10 -33 -36 -24 -27 20 -33 -36 -18 -21 20 -33 -33 -2 1 -24 »Only crude oil (not (Including PPD) The above data shows that the addition of ashless dispersant of the present friend and the use of non-hydroxyalkyl methacrylate containing industrial non-hydroxyalkyl methacrylate in an amount of 0.1 to 0.2% such as Acryloid 156 (manufactured and sold by Roh · and Haas Co.) Compared with the same crude oil, the inventors have the pour point descent ability (12-15D pour point descent). -27- 81.9.20,000 paper size and degree are applicable to China S home sample standards (CNS> A4 specifications (210 X 297 mm)

Claims (1)

^ / Ip Α8 Β8 C8 D8 No. 81108144 Amendment to the Patent Application No. 81108144 patent application 1. A polymer derived from the following polymer polymerization: (a) 70 to 90% by weight of compliance (Ci-Ce < ) Monomers of alkyl methacrylate and (C ^ -Cu) alkyl acrylate, and (b) 10 to 30% by weight of free hydroxyl (C8-Ce) alkyl methyl acrylate and hydroxyl (C 〇- C β) alkyl acrylate monomers, wherein the average number of alkyl atoms in the alkyl range is 8 to 14. 2. The polymer as described in item 1 of the patent scope, in which part of the total weight of the monomers (a) and (b) is zero to 30% by weight of (C16-C ««) alkylmethyl Acrylate, (Cie-Ca <) alkyl acrylate or mixtures thereof. 3. The polymer as described in item 1 of the patent application, in which the number of nitrate atoms of the alkyl group is in the range of 9 to 12 on average. 4. The polymer as described in item 3 of the patent application, in which part of the total weight of (a) and (b) is pseudo 10 to 30% by weight of (Cie-Cae) alkyl methacrylate , (Cle-Cae) alkyl acrylate or a mixture thereof. (Please read the precautions on page f before proceeding with f) Printed by Begung Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. 5. The polymer described in item 4 of the patent scope, in which the monomer (b) is pseudo-selected 2-Hydroxyethyl methacrylate, 2-Hydroxyethyl acrylate, 2-Hydroxypropyl methacrylate, Bumethyl-2-hydroxyethyl methacrylate This paper scale is applicable to National Standard B (CNS) A4 specifications (210 X 297 mm) A8 B8 C8 D8, 2-hydroxypropyl acrylate, methyl-2-hydroxyethyl acrylate, 2-hydroxybutyl methacrylate and 2-hydroxybutyl acrylate. 6. The polymer as described in item 1 of the patent application scope, wherein the single snakehead (a) is composed of the following: (i) 0 to 20% by weight of alkyl methacrylate or alkyl acrylate, wherein Alkyl groups have 1 to 6 sulfon atoms, and mixtures thereof, (ii) 20 to 90% by weight of alkyl methacrylates or alkyl acrylates, wherein the alkyl group has 7 to 15 pour atoms, and mixtures thereof , (Iii) Q to 40% by weight of alkyl methacrylate or alkyl acrylate, in which the alkyl group has 16 to 24 sulfon atoms, and mixtures thereof, and the monomer (b) is from 10 to 30% by weight Hydroxyalkyl methacrylates or acrylates, wherein the alkyl group has 2 to 6 healthy atoms, and is replaced by-or multi-inclined hydroxyl groups, and mixtures thereof, and (i), (ii), (iii ) And (b) constitute the 100% replacement of the polymer. 7. The polymer as described in item 6 of the patent application scope, wherein the polymer is pseudo from 0 to 5% (i), 35 to 70¾ (ii), 25 to 35% (iii) and 10 to 20 % (B). 8. The polymer as described in item 7 of the patent application, wherein the monomer (b) is selected from hydroxy (C 丨 -C *) alkyl methacrylate. 9. The polymer as described in Item 8 of the patent scope, in which the paper size is applicable to the China® National Standard (CNS) A 4 specification (210 X 297 mm) (please read the precautions on the back first OK U-installed-ordered. The average molecular weight of the resuspended A8 B8 C8 D8 compound printed by the K3Γ Industrial and Commercial Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs is in the range of 20, Ο 0 0 to 100,000. 10. If applying for patent No. 9 The polymer described in the item, wherein the polymer compound is composed of 0% (i), 50 to 60% (ii), 20 to 30% (iii) and 15 to 20% (b). 11 . The polymer described in claim 10 of the patent scope, wherein the monomer (b) is selected from 2-hydroxyethyl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl methacrylate Ester, 1-methyl-2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, methyl-2-hydroxyethyl acrylate, 2-hydroxybutyl methacrylate and 2-hydroxybutyl acrylate 12. The polymer as described in Item 10 of the patent scope, wherein the monomer (b) is a mixture of pseudo 2-hydroxypropyl methacrylate and 1-methyl-2-hydroxyethyl methacrylate 13. The polymer as described in item 12 of the patent application scope, in which (ii) l lauryl-myristyl methacrylate and (iii) cetyl-eicosyl methacrylate. 14. The polymer as described in Item 6 of the patent application country, wherein (i) is selected from one or more of methyl methacrylate, butyl methacrylate, and isobutyl methacrylate, (ii) pseudolian from one or A variety of 2-ethylhexyl methacrylate, isodecyl methacrylate, dodecyl-pentadecyl methyl propylene paper standards apply to China National Standard (CNS) A 4 specifications (210 X 297 %) (Please first «read the notes on the back and then do 4? 5 < 0 • 丨 installation • ordering • Printed by the Ministry of Economic Affairs Central Standard WCIC Consumer Cooperative Co., Ltd.% 〇4’ fine A8 B8 C8 D8 Employee of the Central Standards Bureau of the Ministry of Economic Affairs Consumer cooperatives Innu acrylates and lauryl-myristyl methacrylates, (iii) are selected from one or more of cetyl-octadecane methacrylic acid and cetyl-icosyl methyl Acrylate, and (b) pseudo δ from one or more 2-hydroxyethyl methacrylate, 2-hydroxyethyl acrylate , 2-hydroxypropyl methacrylate, 1-methyl-2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 1-methyl-2-hydroxyethyl acrylate, 2-hydroxy Butyl methacrylate and 2-hydroxybutyl acrylate 15. The polymer as described in item 14 of the patent application, wherein the weight average molecular weight of the polymer is in the range of 20,000 to ιοο, οοο. 16. The polymer as described in claim 6 of the patent title, wherein the monomer (a) is composed of 80 to 90% by weight of alkyl methacrylate or alkyl acrylate, wherein the alkyl group has 10 to 14 The dip atoms, and mixtures thereof, and the monomer (b) are composed of 10 to 20% by weight of hydroxy (C, -C8) alkyl methacrylates or acrylates and mixtures thereof. 17. The polymer as described in item 16 of the patent application, wherein the single gambling (a) pseudo-lauryl-myristyl methacrylate and the single «(b) hydroxypropyl methacrylate. 18. A concentrate for lubricating oil, which is composed of 30 to 70% by weight of the polymer described in the first patent application. (Please read the precautions on the back before f) • Packing. Ordering. This paper standard is applicable to China National Standard (CNS) A 4 specifications (210 X 297 public goods) A8 B8 C8 D8 ^ 04359 The agent consists of 30 to 70% by weight of the polymer described in item 6 of the patent application range. 20. The concentrate as described in item 19 of the patent application, wherein the polymer is from 50 to 60% Of lauryl-myristyl methacrylic acid, 20 to 30% of cetyl-icosyl methacrylate, and up to 20% of 2-hydroxypropyl methacrylate and methyl-2-hydroxyethyl It is composed of a mixture of methacrylic acid esters, and its weight average molecular weight is in the range of 20,000 to 100, 0. 0. (Please read the precautions on the back before doing it) Printed by the Central Standard of the Ministry of Economic Affairs The size of the paper used is in accordance with Chinese National Standard (CNS) Grade 4 (210 X 297 mm)