• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SELF-INCRUSTING MICROPOROUS ELASTOMERIC COMPOSITION FOR USE IN TIRE FILLED WITH POLYURETHANE FOAM, the present invention relates to a self-encrusting microporous elastomeric composition for use in tires on a tire filled with polyurethane foam. The composition consists of component A and component B. Component A comprises polyether polyols, polymeric polyols, a cross-linking agent and / or a chain extender, a foam stabilizer, a catalyst and a foaming agent. Component B is a modified alcohol-isocyanate, in which the NCO-mass content is between 18.0% and 20.0%. The mass mixing ratio between component A and component B is 100: 70 to 100. A microporous elastomer material prepared from this material composition is provided with excellent mechanical properties, and it is allowed to replace an existing regular polyester sole material in the manufacture of the tire filled with polyurethane foam.
    公开号:BR112013029587B1
    申请号:R112013029587-2
    申请日:2012-03-19
    公开日:2021-01-19
    发明作者:Luan Sen；Niu Fugang；Sun QINGFENG；Sun Zhaoren
    申请人:Shandong Dongda Inov Polyurethane Co., Ltd.；
    IPC主号:
    专利说明:

    FIELD OF APPLICATION OF THE INVENTION
    [001] The invention belongs to the field of polyurethane elastomers, characterized in particular by a self-encrusting microporous elastomeric composition for use in a tire filled with polyurethane foam. DESCRIPTION OF THE STATE OF THE TECHNIQUE
    [002] The microcellular integral skin polyurethane elastomer is a polyurethane foam elastomeric material with the surface and core once formed in the foaming process.
    [003] As a new material between the foam and an elastomer, it combines the good mechanical properties of the elastomer and the comfort of the foams, with many advantages, such as: high strength, good toughness, light weight, smooth conductivity in stress compression , resistance to oil or water and excellent resistance to fatigue.
    [004] Its excellent cushioning property allows to gradually replace traditional rubber materials and their use in soft parts in automobiles, such as tire preparation.
    [005] Currently, material B used in the preparation of polyurethane foam tires is mainly semi-prepolyester polyester, that is, the single common polyurethane resin. The microcellular elastomer made from material type B polyester has excellent mechanical properties. The foam material has a high hardness and good elasticity. However, the molecular structure of the polymer contains a large number of polar ester groups. Under the action of alternating voltage, its endogenous heat increases. A high accumulation of heat easily leads to burning and loss of applicability. Therefore, the low temperature performance and dynamic mechanical properties of polyester based polyurethane foam tires are relatively not very good. In addition, due to the easy hydrolysis of ester groups in polyol polyesters, tires in hot and humid conditions are prone to molecular chain cleavage and decomposition. For polyester elastomer materials, the resistance to hydrolysis and fungi is very low.
    [006] Using semi-prepolymer polyether to prepare this microcellular polyurethane elastomer can effectively solve these problems. However, the mechanical properties of the microcellular polyurethane elastomer prepared using conventional semi-prepolymer polyether are very low. Under the same density conditions, the skin's hardness is also very low, making it difficult to achieve the surface hardness and mechanical properties required in polyurethane foam tires. Many patents have described that the microcellular elastomer prepared from a new low unsaturated polyether polyol has better performance. Chinese patent CN 1341132 A reported the use of microcellular polyurethane elastomer in outer and inner sole. Chinese patent CN 1341132 A reported the use of the microcellular polyurethane elastomer in the car armrest, car steering wheel, outer and inner sole. Chinese patent CN 1986592 A reported a way to improve the mechanical properties of the polyether microcellular polyurethane elastomer. However, the vast majority of the microcellular elastomer material mentioned in these patents can be used only for polyurethane inner and outer soles and not for polyurethane foam tires.
    [007] Chinese patent CN 101857670 A claimed the use of polycarbonate polyols made from carbon dioxide and epoxide in the preparation of microcellular elastomer with good mechanical properties. But this is only applicable to the preparation of polyurethane inner sole material. The combination of microcellular polyether elastomer used in polyurethane tires is rarely reported in the literature.
    [008] The document CN101165094 has a polyoxypropylene polyol as a cross-linking agent, whereas the stabilizer is B8905 and the foaming agent is water. The cross-linking agent in material A of this patent is glycerin, the stabilizer is the organic foaming agent 8844, and the foaming agent is HCFC-141B (1,1-dichloro-1-fluoroethane). The use of HCFC-141B (1,1-dichloro-1-fluoroethane) as a foaming agent can cause the product to form a strong epidermis and improve the wear resistance of the products. Also, in the present invention, small molecular alcohols are added to material B, which can avoid the disadvantages of the excessive activity of small molecular alcohols in materials A.
    [009] Chinese document CN101781454 describes a composition of low rigidity polyurethane elastomer. The products manufactured with this composition are mainly used for health protection articles, such as low-rigidity insole, non-slip insole, seats, among others. These products have no foams and do not belong to the technical field of microporous elastomers.
    [010] In addition, Chinese document CN1428359 describes a microporous polyurethane polyurethane elastomer with water as a foaming agent. Comparing CN1428359 to the present invention, the polyether used is different and the catalyst is different from the foaming agent. The present patent application also adds the opening agent to material A, which solves the problem of product shrinkage; the composition of material B is different, the content of -NCO is different and the field of application of the products is different. BRIEF DESCRIPTION OF THE INVENTION
    [011] The technical problem to be solved by the present invention is to provide a combination of microcellular elastomers based on polyether used in polyurethane foam tires. Polyurethane foam tires prepared using this composition have excellent mechanical properties, good elasticity, high skin hardness and excellent resistance to hydrolysis and fungal.
    [012] The technical solution of the present invention is as follows: a microcellular elastomer composition of integral skin used in polyurethane foam tires. The composition consists of components A and B, of which: J (1): component A contains polyether polyols, polymer polyols, cross-linking agent and / or chain extender, foam stabilizers, catalysts and blowing agents / breath. Considering the total mass of polyether polyols and polymeric polyols as 100%, the content of polyether polyols is 60 to 90%, while the content of polymer polyols is 10 to 40%. The percentage of other components, compared to the total weight of polyether polyols and polymer polyols is: crosslinking agent and / or chain extender from 10 to 25%, foam stabilizer from 0.2 to 2.5%, catalyst from 0.03 to 1.0%, and blowing agent from 0.01 to 10%; J (2): component B is the modified alcohol-isocyanate. The -NCO content is between 18.0% and 20.0%. The composition of the raw material by weight percentage is as follows: polyether polyether 20-40%; small molecule 0-10% alcohol; 50-70% isocyanate; J (3): mixture of components A and B by weight ratio 100: 70-100 for the preparation of polyurethane foam tires.
    [013] The optimized technical solutions are as follows: the polyether polyol contained in component A is the high primary hydroxyl and low unsaturated polyether polyol. The average numerical molecular weight is 5000 to 8000. The functionality is 2 to 3. The content of the primary hydroxyl is> 65%. The degree of unsaturation is <0.008meq / g.
    [014] The polymer polyol contained in component A is the modified polyether polyol in styrene-acrylonitrile graft. The optimized choice is one or more of Dongda Chemical's production of POP36 / 28 and POP40 (commercial products).
    [015] The cross-linking agents contained in component A are glycerol, trimethylolpropane, pentaerythritol, triethanolamine, diethanolamine or a mixture of those above. The chain extenders are 3,3-dichloro, 4,4-diphenyl-toluene-diamine, 3,5-bis-toluene-diamine, 3,5-diethyl toluene diamine, ethylene glycol, propylene glycol, 1,4 - butanediol, diethylene glycol, dipropylene glycol glycol, 1,3-pentanediol or a mixture of those above. The optimized choice is 1,4-butanediol. Both cross-linking agents and chain extenders can be chosen for use in component A. One or more of the materials described above can be chosen.
    [016] The foam stabilizer in component A is silicone surfactant. The optimized choice is DC3043 (commercial product) from Air Products and Chemicals Co., Ltd. In the U.S. or 8444 (commercial product) from Goldschmidt Chemical Co., Ltd. In Shanghai.
    [017] The catalyst is an organic tin catalyst and / or a tertiary amine catalyst. The optimized choice is one or more of the dibutyl-tin dilaurate, trethyldiamine, bis (dimethyl-aminoethyl) ether, and the delay equilibrium catalyst. The blowing agent is HCFC-141b (1,1-dichloro-1-fluoroethane).
    [018] The polyether polyols contained in component B have the following properties: average numerical molecular weight of 6,000 - 8,000; functionality is 3; the primary hydroxyl content is> 75%; the degree of unsaturation is <0.008meq / g. The small alcohol molecules contained in component B are 1,4-butanediol, 2-methyl-1,3-propylene glycol, diethylene glycol, dipropylene glycol, 1,3-pentanediol or a mixture of those above.
    [019] The optimized quantity is 5% to 10% of the raw material in component B.
    [020] The isocyanate contained in component B is diphenyl methane 4,4-diisocyanate or carbonized carbodiimide modified isocyanate.
    [021] The advantages of this invention are: polyurethane foam tires prepared from the composition of the present invention have excellent mechanical properties, good elasticity and high epidermal hardness. DETAILED DESCRIPTION OF THE INVENTION AND PREFERRED EXAMPLE
    [022] The following examples further illustrate the present invention.
    [023] Example 1: using polyether polyols (EP-330NG by Shandong Dongda Chemical Co., Ltd.) 85 kg, polymeric polyols (POP36 / 28 by Shandong Dongda Chemical Co., Ltd.) 15 kg, 1,4-D12 Kg diol, 7 Kg glycol, 1 Kg glycerol, silicone foam agent 8444 (Goldsschimidt Chemical Co., Ltd. Shanghai) 0.2 Kg, and the tertiary amines and organic tin catalyst (A-33 and T -12) 0.20 Kg and 0.18 Kg, respectively, and a 12 Kg HCFC-141b (1,1-dichloro-1-fluoroethane) blowing agent. Place them in the reactor. Integral mixing at 25 ° C. Remove material, seal and store.
    [024] Using polyether polyols (EP-3600 by Shandong Dongda Chemical Co., Ltd.) 33.45 kg and dipropylene glycol 1.76 kg. Place them in the reactor. Heat to 100 ~ 110 ° C. Vacuum dehydration (-, 09MPa) for 1.5 to 2 hours. Cool between 30 to 50oC.
    [025] Add 61.62 Kg 4.4 - diphenylmethane diisocyanate (pure MDI). Slowly heat up to 80 ~ 85 ° C. Maintain the temperature and reaction for 1.5 to 2 hours. Add 3.17 kg modified carbonized diphenylmethane diisocyanate carbonized. Shake for 0.5 hours. Sampling and testing until the -NCO content reaches 19.8%. Cool to 40 ° C. Remove the seal material and store.
    [026] When used, the temperature of component A is maintained between 25 and 30 ° C, while the temperature of component B is maintained at 30 ~ 40oC. Quickly mix and stir microcellular material A and B, according to the 100: 90 weight ratio. Cast in a centrifugal way to mold and obtain the microcellular elastic polyurethane tire.
    [027] Example 2: using polyether polyols (EP-3600 by Shandong Dongda Chemical Co., Ltd.) 70 kg, polymeric polyols (POP36 / 28 by Shandong Dongda Chemical Co., Ltd.) 30 kg, 1,4-D 10 Kg diol, ethylene glycol 7 Kg, dipropylene glycol 2 Kg, glycerol 1 Kg, silicone foam agent DC3043 (US Air Products and Chemicals Co., Ltd) 0.2 Kg, and the tertiary amines and organic tin catalyst (A-33 and T-12) 0.3 kg and 0.08 kg, respectively, and an HCFC-141b blowing / blowing agent (1,1-dichloro-1-fluoroethane) 12 kg. reactor. Integral mixing at 25 ° C. Remove material, seal and store.
    [028] Using polyether polyols (EP-3600 by Shandong Dongda Chemical Co., Ltd.) 33.67 kg and dipropylene glycol 2.53 kg. Place them in the reactor. Heat to 100 - 110oC. Dehydrate in a vacuum (-0.09Mpa) for 1.5 to 2 hours. Cool between 30 to 50oC.
    [029] Add 60.54 Kg diphenylmethane 4,4-diisocyanate (pure MDI). Slowly heat to 80 ~ 85oC. Maintain the temperature and reaction for 1.5 to 2 hours. Add 3.26 Kg modified carbonized diphenylmethane carbodiimide diisocyanide. Shake for 0.5 hours. Do the sampling and test until the -NCO content reaches 19.0%. Cool to 40oC. Remove material, seal and store.
    [030] When used, the temperature of component A is maintained between 25 and 30oC, while the temperature of component B is maintained at 30 ~ 40oC. Quickly mix and stir microcellular material A and B according to a 100: 90 weight ratio. Cast in a centrifugal way to mold and obtain the microcellular elastic polyurethane tire.
    [031] Contrasting example 1: a material uses the formula of Example 1. Material B uses the unique chemical resin Asahikawa B8090.
    [032] Contrasting example 2: a material uses the formula of Example 1. Material B uses the unique chemical resin Hustman SUPRASEC2614.
    [033] The physical properties of the products in both examples and contrast examples are shown in the table below.

    [034] The table above shows that the microcellular elastomer combination prepared by the present invention is of high performance and can replace the single polyester resin in the preparation of microcellular polyurethane elastomer tires.
    权利要求:
    Claims (5)
    [0001]
    1. SELF-INCRUSTING MICROPOROUS ELASTOMERIC COMPOSITION FOR USE IN TIRE FILLED WITH POLYURETHANE FOAM, a microcellular elastomeric composition of integral skin, characterized by having components A and B, of which: (1) component A contains: polyether polyols, with high content of primary hydroxyl and low unsaturated polyether polyol; the average numerical molecular weight is 5000 to 8000; functionality is 2 to 3; the primary hydroxyl content is> 65%; and the degree of unsaturation is <0.008meq / g; polymer polyols, polyether polyol in modified styrene-acrylonitrile graft; cross-linking agent and / or chain extender, foam stabilizers, catalysts and blowing / blowing agents; considering the total mass of polyether polyols and polymeric polyols as 100%, the content of polyether polyols is 60 to 90%, while the content of polymer polyols is 10 to 40%; the percentage of other components, compared to the total weight of polyether polyols and polymer polyols is: 10-25% cross-linking agent and / or chain extender, 0.2 to 2.5% foam stabilizer, catalyst from 0.03 to 1.0%, and blowing agent from 0.01 to 10%, with the temperature of component A maintained between 25 and 30oC; (2) component B is the modified alcohol-isocyanate; where the -NCO content is between 18.0% and 20.0% and the composition of the raw material by weight percentage is as follows: polyether polyol, 20-40%, with an average numerical molecular weight of 6000 to 8000; functionality is 3; the primary hydroxyl content is> 75%; and the degree of unsaturation is <0.008meq / g; small molecules of alcohol, 5-10% and isocyanate, 50-70%, with 4-diphenylmethane 4,4-diisocyanate or modified carbonized carbodiimide isocyanate; maintaining the temperature of component B at 30-40oC; (3) mixture of component A and B weight ratio of 100: 70-100, in a centrifugal way, in a reactor for integral mixing at 25oC.
    [0002]
    2. SELF-INCRUSTING MICROPOROUS ELASTOMERIC COMPOSITION FOR USE IN TIRE FILLED WITH POLYURETHANE FOAM, according to claim 1, characterized by the cross-linking agents contained in component A being glycerol, trimethylolpropane, pentaerythritol, triethanolamine, or a mixture of those above ; the chain extenders are 3,3-dichloro, 4,4-diphenyl-toluene-diamine, 3,5-bis-toluene-diamine, 3,5-diethyl toluene diamine, ethylene glycol, propylene glycol, 1,4 -butanediol, diethylene glycol, dipropylene glycol glycol, 1,3-pentanediol or a mixture of those above.
    [0003]
    3. SELF-INCRUSTING MICROPOROUS ELASTOMERIC COMPOSITION FOR USE IN TIRE FILLED WITH POLYURETHANE FOAM, according to claim 1, characterized by the foam stabilizer in the component A to be silicone surfactant; the catalyst is an organic tin catalyst and / or the tertiary amine catalyst; the blowing agent is 1,1-dichloro-1-fluoroethane.
    [0004]
    4. SELF-INCRUSTING MICROPOROUS ELASTOMERIC COMPOSITION FOR USE IN TIRE FILLED WITH POLYURETHANE FOAM, according to claim 3, characterized by the catalysts being one or the mixture of dibutyltin dilaurate, tri ethyl ethyl diamine, bis (dimethyl aminoethyl) ether , and the delay equilibrium catalyst.
    [0005]
    5. SELF-INCRUSTING MICROPOROUS ELASTOMERIC COMPOSITION FOR USE IN TIRE FILLED WITH POLYURETHANE FOAM, according to claim 1, characterized by the small alcohol molecules contained in component B being 1,4-butanediol, 2-methyl-1,3- propylene glycol, diethylene glycol, dipropylene glycol, 1,3-pentanediol or a mixture of those above.
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    同族专利:
    公开号 | 公开日
    MY166514A|2018-07-05|
    BR112013029587A2|2016-12-13|
    CN102250313B|2012-09-26|
    CN102250313A|2011-11-23|
    KR101446231B1|2014-10-08|
    KR20130124968A|2013-11-15|
    SG193457A1|2013-10-30|
    WO2013037179A1|2013-03-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2843739C3|1978-10-06|1982-04-22|Bayer Ag, 5090 Leverkusen|Process for the production of substantially homogeneous polyurethane elastomers|
    CN1068347A|1992-08-08|1993-01-27|朱吉如|The compound polyurethane material of non-inflatable vehicle tyre|
    KR100321109B1|1994-07-14|2002-06-20|김평기|Semi-hard polyurethane foam composition forming integral skin foam and integral skin polyurethane foam produced from the same|
    PL187124B1|1995-12-08|2004-05-31|Huntsman Int Llc|Polyurethane elastomers|
    US6031010A|1997-08-11|2000-02-29|Imperial Chemical Industries Plc|Polyurethane foam composition having improved flex fatigue|
    US6100310A|1998-09-25|2000-08-08|Bayer Antwerp N.V.|Process for making microcellular polyurethane elastomers|
    CN1171925C|2001-12-27|2004-10-20|中国科学院山西煤炭化学研究所|Preparation method of polyether polyarethane microporous elastic body|
    CN101165094B|2007-09-29|2011-09-21|山东东大一诺威聚氨酯有限公司|Urethane micro-pore elastomer composite material adapated for insole and preparation method thereof|
    CN101781454B|2009-12-25|2011-12-14|山东东大一诺威聚氨酯有限公司|Low hardness polyurethane elastic body composite|CN102585162A|2011-12-23|2012-07-18|山东东大一诺威聚氨酯有限公司|Microporous polyurethane elastomer compound with excellent dynamic performance and preparation method thereof|
    CN102558485B|2011-12-23|2014-05-07|山东一诺威聚氨酯股份有限公司|Environmentally-friendly polyurethane compound used for manufacturing automotive sound insulation pad and preparation method thereof|
    CN103319685A|2013-05-08|2013-09-25|杭州康诚汽车附件有限公司|Self-skinning polyurethane foam plastic and preparation method thereof|
    CN103304983A|2013-05-31|2013-09-18|苏州市景荣科技有限公司|Acid and alkali resistant polyurethane sole material|
    CN103641979B|2013-12-09|2015-12-02|山东一诺威聚氨酯股份有限公司|Mine polyurethane is from antiskinning composition and preparation method thereof|
    CN103740091B|2014-01-20|2015-11-04|苏州井上高分子新材料有限公司|A kind of foaming wheel polyetherurethane elastic composition and preparation method thereof|
    CN104650309A|2014-01-27|2015-05-27|福建大方海绵科技股份有限公司|Natural plant oil based plant-carried foam cotton and preparation method thereof|
    CN104211892A|2014-08-05|2014-12-17|滁州宝瑞橡胶制品有限公司|Low-density integral skin used for seat|
    CN104262574B|2014-10-11|2016-08-17|淄博德信联邦化学工业有限公司|Polyurethane toy and preparation method thereof|
    CN104497252A|2014-12-11|2015-04-08|淄博德信联邦化学工业有限公司|Polyurethane for making solid tires and preparation method thereof|
    CN105153390B|2015-06-29|2018-03-02|山东一诺威聚氨酯股份有限公司|Environment-protecting polyurethane foaming tire combination material and preparation method thereof|
    CN105001394A|2015-06-29|2015-10-28|山东一诺威聚氨酯股份有限公司|Self-skinning compound material for heat-resistant polyurethane foaming tyre and preparation method thereof|
    CN105294990A|2015-10-23|2016-02-03|芜湖德鑫汽车部件有限公司|Automobile instrument panel protective plate and preparation method thereof|
    CN105440243B|2015-12-31|2018-07-24|山东一诺威聚氨酯股份有限公司|Urethane composition and preparation method thereof for vehicle dormer window cushion pad|
    CN105601873B|2015-12-31|2018-05-25|山东一诺威聚氨酯股份有限公司|Vehicle steering polyurethane combines material and preparation method thereof from skinning|
    CN107417879B|2016-05-24|2020-06-09|北京化工大学|Solution polymerized styrene-butadiene rubber-polyurethane elastomer material for high-performance tire and preparation method thereof|
    CN106928484A|2017-03-30|2017-07-07|厦门领昕轮胎有限公司|One kind is high performance to exempt from inflatable bicycle PU tire production foaming agents|
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    CN107556455A|2017-09-15|2018-01-09|山东诺威聚氨酯股份有限公司|Combination material for polyurethane inflation-free inner tyre and preparation method thereof|
    CN108059704A|2017-12-18|2018-05-22|苏州浩洋聚氨酯科技有限公司|A kind of low density high hardness polyurethane synthetic material|
    CN110157320A|2019-05-31|2019-08-23|上海明辛纳米科技有限公司|A kind of tire nano repairing liquid with self-repair function|
    CN111848903A|2019-10-16|2020-10-30|宁波途锐达休闲用品有限公司|Microporous polyurethane foam material and its production process|
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    法律状态:
    2017-03-14| B08F| Application fees: application dismissed [chapter 8.6 patent gazette]|Free format text: REFERENTE A 5A ANUIDADE. |
    2017-04-04| B08G| Application fees: restoration [chapter 8.7 patent gazette]|
    2018-04-03| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-02-11| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2020-08-11| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2020-12-08| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-01-19| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/03/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    CN201110148612A|CN102250313B|2011-06-03|2011-06-03|Self-skinning microporous elastomer composite for polyurethane foam tire|
    CN201110148612.1|2011-06-03|
    PCT/CN2012/000337|WO2013037179A1|2011-06-03|2012-03-19|Auto-crusting microporous elastomer composition for use in polyurethane foam-filled tire|
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