System and method for producing, preparing, or manufacturing natural rubber-based ABS compositions, powders, substances, and/or additives

A process for producing natural rubber-based acrylonitrile butadiene styrene (ABS) powder. The process comprises introducing a portion of natural rubber, mixing divinylbenzene (DVB) with the portion of natural rubber to produce vulcanized natural rubber, mixing the vulcanized natural rubber with a monomer solution to produce grafted natural rubber, mixing a plurality of grafted polybutadiene rubbers with the grafted natural rubber to produce a latex masterbatch and mixing a coagulant to a portion of the latex masterbatch to produce natural rubber-based ABS powder. By mixing the DVB with the portion of natural rubber, an intermediate step which is required in conventional methods before the polymerization process, can be eliminated. A natural rubber-based acrylonitrile butadiene styrene (ABS) powder produced by the process is also disclosed.

Polybutadiene grafted isoprene rubber, processes for preparing polybutadiene grafted isoprene rubber, mixed compositions and vulcanized forms thereof

Disclosed herein are polybutadiene grafted isoprene rubber, processes for preparing polybutadiene grafted isoprene rubber, mixed compositions and vulcanized forms thereof.

PRESSURE SENSITIVE COMPOSITIONS BASED ON A MODIFIED RUBBER POLYMER AQUEOUS DISPERSION

The invention relates to an aqueous polymer dispersion comprising: 1. An aqueous polymer dispersion comprising a mixture of:a) an aqueous polymer dispersion comprising grafted rubber polymeric particles from rubber polymer being selected from the group consisting of natural and synthetic rubber, [{'sub': 4', '10', 'b1, 'b1) a (meth)acrylate of a linear or branched alcohol in Cto Cor a mixture of such (meth)acrylates, said (meth)acrylate having Tglower than −30° C., and'}, {'sub': 'b2', 'b2) optionally, at least one comonomer having Tghigher than −30° C.,'}], 'b) an aqueous polymer dispersion with polymeric particles of a second polymer comprising monomeric units derived from a monomeric composition b) comprising'}with said grafted rubber polymeric particles being grafted in an aqueous dispersion by a part of said monomeric composition b) as defined above and with the said grafted part of monomeric composition b) on said rubber polymer a) representing from 25 to 50% w/w of the total weight of said monomeric composition b) involved in both grafted polymer a) and in polymer b).2. The dispersions according to claim 1 , wherein said rubber polymer a) is natural rubber.3. The dispersion according to claim 1 , wherein said rubber polymer a) is synthetic rubber and selected from the group consisting of: polyisoprene claim 1 , polybutadiene and their copolymers isoprene-butadiene and from other copolymers of isoprene and of butadiene.4. The dispersion according to wherein a weight proportion of said rubber polymer a) claim 1 , without grafted monomers claim 1 , with respect to the global weight of a) b) claim 1 , represents from 5 to 45%.5. The dispersion according to wherein b1) is selected from the group consisting of: butyl (meth)acrylate claim 1 , 2-ethyl hexyl (meth)acrylate claim 1 , 2-octyl (meth)acrylate claim 1 , isooctyl (meth)acrylate claim 1 , nonyl(meth)acrylate claim 1 , decyl (meth)acrylate claim 1 , and a mixture of at least two or of at least three of said ...

TONER

A toner having a toner particle containing a binder resin and a styrene-acrylic resin, the toner being characterized in that the styrene-acrylic resin is a graft polymer having an aliphatic hydrocarbon compound segment and a styrene-acrylic segment, the styrene-acrylic segment has a specific monomer unit, the melting point of the styrene-acrylic segment is from 30° C. to 80° C., and when the toner is measured using a FT-IR ATR method, the intensity assigned to the styrene-acrylic resin and the intensity assigned to the binder resin satisfy a specific relationship. 2. The toner according to claim 1 , wherein the content ratio of the monomer unit represented by the formula (1) in the styrene-acrylic resin is from 30 mass % to 80 mass %.3. The toner according to claim 1 , wherein the content ratio of the styrene-acrylic segment in the styrene-acrylic resin is from 70 mass % to 95 mass %.4. The toner according to claim 1 , wherein the value of n in the formula (1) is from 20 to 28.5. The toner according to claim 1 , wherein the value of n in the formula (1) is 22.6. The toner according to claim 1 , wherein the content of the styrene-acrylic resin is from 10 parts by mass to 30 parts by mass relative to 100 parts by mass of the binder resin.7. The toner according to claim 1 , wherein the binder resin includes a polyester resin.8. The toner according to claim 7 , whereinthe polyester resin has an alkyl group side chain, andthe number of carbon atoms in the alkyl group is from 10 to 20.9. The toner according to claim 1 , wherein an aliphatic hydrocarbon compound contained in the aliphatic hydrocarbon compound segment is at least one selected from the group consisting of polypropylene and a paraffin wax.10. The toner according to claim 1 , wherein the number-based median diameter (D50) of the toner is from 3.0 μm to 6.0 μm.11. The toner according to claim 1 , wherein the toner particle has a shell formed from the styrene-acrylic resin at a surface thereof.12. The toner ...

Low-VOC Compositions and Methods of Making and Using the Same

Compositions having low quantities of volatile organic compounds (VOCs) and uses thereof are generally disclosed. In some embodiments, the compositions are aqueous compositions, such as aqueous suspensions, suitable for use as coating or paint compositions. In some embodiments, the compositions are aqueous compositions that include, among other components, a film-forming polymer and a coalescing aid. In some embodiments, the coalescing aids are derived from a renewable feedstock. Methods and systems for making such compositions are also disclosed. Novel coalescing aids are also disclosed. 2. (canceled)3. The composition of claim 1 , wherein Ris Calkenyl or Coxyalkenyl claim 1 , each of which is optionally substituted one or more times by —OH.4. The composition of claim 1 , wherein the moiety defined by Rhas exactly two non-conjugated carbon-carbon double bonds.5. The composition of claim 1 , wherein Ris —(CH)—CH═CH—CH—CH claim 1 , —(CH)—CH═CH—CH—CH═CH claim 1 , —(CH)—CH═CH—CH—CH═CH—CH claim 1 , —(CH)—CH═CH—CH—CH═CH—CH—CH claim 1 , —(CH)—CH═CH—CH—CH═CH—CH—CH—CH claim 1 , or a mixture thereof.6. The composition of claim 5 , wherein Ris —(CH)—CH═CH—CH—CH.7. The composition of claim 5 , wherein Ris —(CH)—CH═CH—CH—CH═CH.8. (canceled)9. (canceled)10. (canceled)11. The composition of claim 1 , wherein Ris —(CH)—OH claim 1 , —CH—CH(OH)—CH claim 1 , or —(CH)—OH.12. The composition of claim 1 , wherein the film-forming polymer is a natural latex claim 1 , a synthetic latex claim 1 , or a mixture thereof.13. The composition of claim 12 , where the film-forming polymer is a synthetic latex.14. The composition of claim 13 , where the synthetic latex is an acrylic polymer claim 13 , polyvinyl acetate claim 13 , polyvinyl chloride claim 13 , styrene-butadiene rubber claim 13 , acrylonitrile-butadiene rubber claim 13 , or a mixture thereof.15. The composition of claim 1 , wherein the weight-to-weight ratio of film-forming polymer to coalescing aid ranges from 5:1 to 200:1 claim 1 , ...

High-performance Rubber Damping Material and Method for Preparing the Same

The present disclosure discloses a high-performance rubber damping material and a method for preparing the same, relating to the technical field of damping materials. The method for preparing the high-performance rubber damping material includes: grafting hydroxyethyl methacrylate and lignin to a rubber molecular chain of natural rubber latex through graft copolymerization reaction, so as to obtain a high-performance rubber damping material. This method adopts natural rubber latex as a base material, the hydroxyethyl methacrylate and lignin are grafted to the rubber molecular chain of natural rubber latex through graft copolymerization reaction, to form a semi-interpenetrating network structure.

COMPOUNDS CARRYING NITROGEN-CONTAINING BINDING GROUPS

The invention relates to a compound of formula (I), wherein: A1 and Arepresent, independently of one another, a binding group comprising at least one nitrogen atom; Qand Qrepresent, independently of one another, a linkage group; and x is an integer between 2 and 6, preferably between 3 and 6. The invention also relates to a rubber composition comprising said compound. 124-. (canceled)25. A compound of formula (I){'br': None, 'sub': 1', '1', 'x', '2', '2, 'A-Q-S-Q-A\u2003\u2003(I)'} [{'sub': 1', '2, 'Aand Arepresent, independently of one another, an associative group comprising at least one nitrogen atom,'}, {'sub': 1', '2, 'Qand Qrepresent, independently of one another, a bonding group,'}, 'x is an integer ranging from 3 to 6., 'wherein26. The compound as claimed in claim 25 , wherein Aand Aare identical.27. The compound as claimed in claim 25 , wherein Aand Aare independently selected from the groups consisting of imidazolidinone claim 25 , triazolyl claim 25 , ureyl claim 25 , bisureyl and ureidopyrimidyl.30. The compound as claimed in claim 25 , wherein Qand Qare independently a linear or branched claim 25 , substituted or unsubstituted claim 25 , divalent C1-C24 claim 25 , hydrocarbon-based radical claim 25 , optionally interrupted and/or substituted with one or more nitrogen or oxygen atoms.31. The compound as claimed in claim 25 , wherein x is equal to 4.33. A mixture of different compounds of formula (I){'br': None, 'sub': 1', '1', 'x', '2', '2, 'A-Q-S-Q-A\u2003\u2003(I),'} [{'sub': 1', '2, 'Aand Arepresent, independently of one another, an associative group comprising at least one nitrogen atom,'}, {'sub': 1', '2, 'Qand Qrepresent, independently of one another, a bonding group,'}, 'x is an integer ranging from 2 to 6;, 'whereinthe compounds having different values of x and otherwise being identical,wherein x has a mean value of between 2 and 6.34. A process for preparing a compound as claimed claim 25 , comprising a step of reacting a sulfur-containing ...

RESIN COMPOSITION FOR PLATING, AND PLATED MOLDED ARTICLE

To provide a resin composition for plating and a plated molded article which are excellent in impact resistance and fluidity and which satisfy plating adhesion strength, plating deposition rate and thermal cycle resistance in a well-balanced manner. 1. A resin composition for plating , comprising a polycarbonate resin (A) , a graft copolymer (B) and a copolymer (C) , wherein the resin composition satisfies the following conditions (1) to (5):(1) a content of the polycarbonate resin (A) is 20 to 60% by mass based on 100% by mass of a total of (A), (B) and (C);(2) the graft copolymer (B) is a graft copolymer obtained by graft polymerization of a rubbery polymer and a monomer component comprising an aromatic vinyl-based monomer;(3) the copolymer (C) is a copolymer obtained by polymerization of a monomer component comprising an aromatic vinyl-based monomer and a vinyl cyanide-based monomer;(4) a content of the rubbery polymer is 7 to 20% by mass relative to the resin composition; and(5) a content of an oligomer component is less than 1% by mass relative to the resin composition.2. The resin composition for plating according to claim 1 , wherein the content of the polycarbonate resin (A) is 30 to 50% by mass based on 100% by mass of the total of (A) claim 1 , (B) and (C).3. The resin composition for plating according to claim 1 , wherein the content of the rubbery polymer is 10 to 15% by mass relative to the resin composition.4. The resin composition for plating according to claim 1 , wherein a content of the vinyl cyanide-based monomer forming the copolymer (C) is 30 to 40% by mass relative to the copolymer (C).5. A plated molded article where a molded article obtained by molding the resin composition for plating according to is plated. The present invention relates to a resin composition for plating and a plated molded article which are excellent in impact resistance and fluidity and which satisfy plating adhesion strength, plating deposition rate and thermal cycle ...

Pneumatic tire

A pneumatic tire which offers extremely excellent durability through inclusion of a belt portion composed of a rubber composition having excellent reinforcing properties, high hardness, low heat build-up properties, excellent deterioration resistance, and excellent adhesiveness to steel cords, wherein the rubber composition contains a natural rubber prepared by graft polymerizing a natural rubber latex with a polar group-containing monomer, and solidifying and drying the resulting product. A pneumatic tire which offers excellent rolling resistance through inclusion of a ply coating rubber, squeegee rubber, or tie rubber composed of a rubber composition containing a modified natural rubber prepared by graft polymerizing a natural rubber latex with a polar group-containing monomer, and solidifying and drying the resulting product.

Rubber mixture for lateral rubber and high-strength pneumatic radial tyre

FIELD: chemistry. SUBSTANCE: rubber mixture for lateral rubber contains 35-55 pts.wt filler which contains at least soot with dibutylphthalate absorption coefficient not lower than 105 mg/100 g and nitrogen adsorption specific surface area of not less than 40 m 2 /g per 100 pts.wt rubber component consisting of at least two or more of natural rubber, synthetic polyisoprene rubber and another diene-based synthetic rubber. The rubber mixture additionally contains a curing agent and the amount of said soot in the mixture is between 15 and 55 pts.wt and tan δ at 25°C and total amount of filler in the mixture satisfies the following relationship (I): tan δ/total amount of filler in the mixture ≤ 0.0025 …(I). EFFECT: disclosed rubber mixture has good processability and low hysteresis loss without deterioration of longevity of the side rubber and the pneumatic tyre has low rolling resistance. 4 cl, 3 tbl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 429 251 (13) C2 (51) МПК C08L 7/00 (2006.01) C08L 9/00 (2006.01) C08K 3/04 (2006.01) B60C 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009116234/05, 28.09.2007 (24) Дата начала отсчета срока действия патента: 28.09.2007 (73) Патентообладатель(и): БРИДЖСТОУН КОРПОРЕЙШН (JP) R U Приоритет(ы): (30) Конвенционный приоритет: 29.09.2006 JP 2006-268798 (72) Автор(ы): ООХАРА Масаси (JP) (43) Дата публикации заявки: 10.11.2010 Бюл. № 31 2 4 2 9 2 5 1 (45) Опубликовано: 20.09.2011 Бюл. № 26 (56) Список документов, цитированных в отчете о поиске: JP 2006-183036 А, 13.07.2006. JP 2006152211 А, 15.06.2006. JP 2006-152213 А, 15.06.2006. RU 2088422 С1, 27.08.1997. RU 2225792 С2, 20.03.2004. 2 4 2 9 2 5 1 R U (86) Заявка PCT: JP 2007/069064 (28.09.2007) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.04.2009 (87) Публикация заявки РСТ: WO 2008/047582 (24.04.2008) Адрес для переписки: 103735, Москва, ул.Ильинка, 5/2, ...

一种阻燃hips材料及其制备方法

本发明公开了一种阻燃HIPS材料及其制备方法，包括组份：HIPS树脂79‑91份；溴系阻燃剂2‑8份；辅助阻燃剂3‑7份；其中，所述辅助阻燃剂为1,3,5‑三嗪类化合物。本发明通过溴系阻燃剂和辅助阻燃剂协同复配，有效地减少了溴系阻燃剂的用量，可达到稳定的UL 94（1.5mm）V‑2阻燃等级；与现有的溴系阻燃HIPS相比，具有低卤素含量，低瓦斯气，高性价比，较好的热稳定性，对模具的腐蚀性较轻，可广泛应用于薄壁制件领域，如办公设备，影视多媒体，家用电器领域等。

Modified natural rubber or modified natural rubber latex and rubber composition

Polybutadiene grafted isoprene rubber, preparation method thereof, and vulcanizate and mixed compound therefrom

본 발명은, 폴리부타디엔 그라프트화 이소프렌 고무, 그의 제조 방법, 그 방법으로 제조된 폴리부타디엔 그라프트화 이소프렌 고무, 및 그러한 폴리부타디엔 그라프트화 이소프렌 고무로부터 제조된 가황물과 혼합 컴파운드에 관한 것이다. 상기 폴리부타디엔 그라프트화 이소프렌 고무에 있어서, 폴리부타디엔 그라프트화 이소프렌 고무의 총중량 기준으로 계산하여, 부타디엔 구조 단위의 함량이 0.5∼8중량%이고, 이소프렌 구조 단위의 함량이 92∼99.5중량%이며; 상기 폴리부타디엔 그라프트화 이소프렌 고무의 수평균 분자량이 2×10 5 ∼5×10 5 이고, 분자량 분포가 3∼4이고, 분지화 인자가 0.5∼0.98이고, 시스-1,4-구조의 함량이 95∼99중량%이다. 본 발명에서 제공되는 폴리부타디엔 그라프트화 이소프렌 고무는, 뛰어난 기계적 성질뿐만 아니라, 바람직한 가공성을 가진다. 또한, 본 발명에서 개시되는 제조 방법은 간단하고 제어가 용이하며, 제조된 폴리머의 조성과 분자량을 효율적이고 정확하게 제어할 수 있다. 따라서, 본 발명의 방법은 공업적 응용 분야에 매우 가치있는 방법이다. The present invention relates to a polybutadiene grafted isoprene rubber, a process for producing the same, a polybutadiene grafted isoprene rubber produced by the process, and a vulcanized product and a mixed compound produced from such a polybutadiene grafted isoprene rubber. The polybutadiene grafted isoprene rubber has a butadiene structural unit content of 0.5 to 8% by weight and an isoprene structural unit content of 92 to 99.5% by weight, calculated on the basis of the total weight of the polybutadiene grafted isoprene rubber; And the number average molecular weight of the polybutadiene grafted isoprene rubber 2 × 10 5 ~5 × 10 5, and a molecular weight distribution is 3 or 4, the branching factor is 0.5 to 0.98, the content of cis-1,4-structure 95 to 99% by weight. The polybutadiene grafted isoprene rubber provided in the present invention has not only excellent mechanical properties but also favorable processability. Further, the production method disclosed in the present invention is simple and easy to control, and can efficiently and precisely control the composition and molecular weight of the produced polymer. Therefore, the method of the present invention is a very valuable method for industrial application fields.

接枝聚合物的制备方法

本发明提供了一种接枝聚合物的制备方法，包括：将二烯类橡胶聚合物、包含(甲基)丙烯酸酯类单体和芳香族乙烯基类单体的第一单体混合物和反应性紫外线(UV)稳定剂加入到反应器中并进行聚合以制备复合橡胶聚合物；和将包含(甲基)丙烯酸酯类单体、芳香族乙烯基类单体和乙烯基氰类单体的第二单体混合物接枝聚合到所述复合橡胶聚合物上以制备接枝聚合物，其中，基于100重量份的所述二烯类橡胶聚合物、所述第一单体混合物和所述第二单体混合物的总和，所述反应性UV稳定剂以0.1重量份至2重量份的量加入。

In-situ forming protective film, preparation method and application thereof

本发明公开了一种原位赋型保护膜、制备方法及其应用，方法包括以下步骤：将软段聚合物溶解于溶剂中，获得聚合物溶液；向聚合物溶液中加入硬段聚合物单体，搅拌均匀得到聚合物溶液a1；取热引发剂溶解于溶剂中，得到溶液b1；取去离子水，加入表面活性剂，得到溶液c；将溶液c分成两份；在搅拌的作用下，将溶液a1与溶液b1分别加入溶液c中，得到乳化后的乳液a2和b2；在搅拌的作用下，将乳液a2与b2混合；将混合乳液喷涂于模板上形成均匀的液膜，加热液膜，得到原位赋型保护膜。本发明的保护膜是交联并原位增强的聚合物薄膜，具有较好的抗撕裂性。

Plate application resin combination and plating formed products

本发明提供一种耐冲击性和流动性优异，并且镀敷密合强度、镀敷析出性及冷热循环性的平衡优异的镀敷用树脂组合物及镀敷成形品。本发明提供一种一种镀敷用树脂组合物，其含有聚碳酸酯树脂(A)、接枝共聚物(B)及共聚物(C)，并且满足下述条件(1)～(5)：(1)聚碳酸酯树脂(A)相对于(A)、(B)、(C)总计100质量％的含量为20～60质量％；(2)接枝共聚物(B)是橡胶聚合物与包含芳香族乙烯类单体的单体组分进行接枝聚合而形成的接枝共聚物；(3)共聚物(C)是包含芳香族乙烯类单体和氰化乙烯类单体的单体组分进行聚合而形成的共聚物；(4)橡胶聚合物相对于树脂组合物的含量为7～20质量％；(5)低聚物组分相对于树脂组合物的含量小于1质量％。

High-impact vinylaromatic polymer obtained from a rubber bearing a group which generates a stable free radical

The invention relates to a process for preparing a composition comprising a vinylaromatic polymer matrix and particles of rubber, which comprises a step of polymerizing at least one vinylaromatic monomer in the presence of a rubber comprising a group which generates a stable free radical. The process makes it possible to obtain morphologies other than salami morphologies, such as the labyrinth, onion or capsule morphology, with the aim, for example, of enhancing the gloss of the high-impact vinylaromatic polymer.

Flame-retardant HIPS material and its manufacturing method

본 발명은 난연 HIPS재료 및 그 제조방법에 관한 것으로，HIPS수지79-91중량부;브롬계 난연제 2-8중량부; 보조 난연제 3-7중량부;를 포함하며, 여기서，상기 보조 난연제는 1,3,5-트리아진 화합물이다. 본 발명은 브롬계 난연제와 보조 난연제의 시너지 배합을 통해 브롬계 난연제의 양을 효과적으로 감소시켜, 안정적인 UL 94（1.5mm）V-2 난연 등급에 도달할 수 있으며; 기존 브롬계 난연 HIPS에 비해, 할로겐 함량이 낮고 가스가 적고 비용 성능이 높으며, 양호한 열안정성을 구비하고, 금형에 대한 부식성이 약하며, 사무용 기기, 영화 및 멀티미디어, 가전제품 등과 같은 얇은 벽 부품 분야에 널리 적용될 수 있다.

Elastomer compositions modified by silanes

本发明涉及通过与不饱和硅烷反应而进行的弹性体的改性，产生的改性的弹性体及通过成形和固化改性的弹性体组合物而产生的制品。本发明还涉及不饱和硅烷作为偶联剂在填充的弹性体组合物中的用途。在根据本发明的方法中，硅烷具有式：R”-CH＝CH-C(O)X-Y-SiR a R’ (3-a) (I)或R”-C≡C-C(O)X-Y-SiR a R’ (3-a) (II)，其中R表示可水解基团；R’表示具有1至6个碳原子的烃基；a具有1至3范围内的值且包括端值；Y表示分离键-C(O)X-与Si原子的含有至少一个碳原子的二价有机间隔基键，X选自S或O；且R”表示氢或对-CH＝CH-或-C≡C-键具有吸电子效应的基团。这使硅烷在自由基引发剂的存在下能够有效地与二烯弹性体反应。

Redispersible polymer powder

FIELD: chemistry. SUBSTANCE: invention relates to a redispersible, water-soluble polymer powder based on at least one modified natural latex. The modified natural latex can be obtained by mixing natural latex with at least one radical initiator and/or oxidising agent. The latex can also be obtained by mixing and reacting natural latex with at least one unsaturated olefin monomer and with at least one radical initiator. The polymer powder contains up to about 95 wt % of least one natural latex, about 0 to 50 wt % of at least one protective colloid, about 2 to 70 wt % of at least one filler and/or anti-caking agent, as well as optionally further additives. EFFECT: invention increases looseness of the polymer powder, the powder does not cake over a long period of time at high temperature, compositions containing said polymer powder have high water repellence or low water absorption. 10 cl, 5 tbl, 17 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 501 819 (13) C2 (51) МПК C08L C08L C08C C08C C08C C08J C04B ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C04B (12) ОПИСАНИЕ 7/00 7/02 1/02 19/04 19/28 3/12 26/02 28/02 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011102965/05, 25.06.2009 (24) Дата начала отсчета срока действия патента: 25.06.2009 (73) Патентообладатель(и): АКЦО НОБЕЛЬ Н.В. (NL) R U Приоритет(ы): (30) Конвенционный приоритет: 27.06.2008 EP 08159268.5 27.06.2008 EP 08159286.7 (72) Автор(ы): ВИЛЛИМАНН Хонгли (CH), ВИККИ Ханс (CH), ХАЙНИ Урс (CH), ЦАПФ Александер (CH), КЕЛЛИКЕР Роберт (CH) (43) Дата публикации заявки: 10.08.2012 Бюл. № 22 2 5 0 1 8 1 9 (45) Опубликовано: 20.12.2013 Бюл. № 35 2 5 0 1 8 1 9 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.01.2011 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: GB 439777 А, 13.12.1935. US 20040097622 А1, 20.05.2004. US 1762494 A, 10.06.1930. US 4546132 A, 08.10.1985. US 6391952 B1, 21.05.2002. US 20030032711 A1, ...

High-impact vinylaromatic polymer obtained from a rubber bearing a group which generates a stable free radical

본 발명은 비닐방향족 중합체 매트릭스(matrix) 및 고무 입자를 함유하는 조성물의 제조 방법에 관한 것이고, 상기 방법은 안정한 자유 라디칼을 발생시키는 기를 함유하는 고무의 존재하 하나 이상의 비닐방향족 단량체의 중합 단계를 포함한다. The present invention relates to a process for the preparation of a composition containing a vinylaromatic polymer matrix and rubber particles, the process comprising the step of polymerizing at least one vinylaromatic monomer in the presence of a rubber containing a group that generates stable free radicals. do. 본 발명에 따른 방법은 예를 들어, 내충격성 비닐방향족 중합체의 광택을 강화시킬 목적으로 살라미(salami) 조직 이외의 다른 조직, 예컨대 미로, 양파 또는 캡슐 조직을 수득할 수 있다. The process according to the invention can yield tissues other than salami tissues, such as maze, onion or capsule tissues, for example for the purpose of enhancing the gloss of impact resistant vinylaromatic polymers.

Composition of redispersible polymer powder

FIELD: chemistry. SUBSTANCE: present invention relates to a composition of a water-redispersible polymer powder based on at least one synthetic polymer and at least one natural latex and which is used in compositions of construction materials. The composition of said polymer powder contains at least one water-insoluble synthetic polymer, preferably about up to 90 wt %, at least one modified natural latex, preferably about up to 90 wt %. The natural latex is obtained by mixing and reacting it, in aqueous phase, with at least one radical initiator and/or oxidising agent. The water-insoluble synthetic polymer is obtained using emulsion, suspension, microemulsion and/or inverted emulsion polymerisation. The composition also contains preferably about 0-50 wt % of at least one protective colloid, about 2-50 wt % of at least one filler and/or anti-caking agent. The composition also optionally contains additives. Modified latex, which is subsequently dried, is mixed with the synthetic polymer. The synthetic polymer is added before, during and/or after adding at least one radical initiator and/or oxidising agent. The synthetic polymer is added and/or in form of water-redispersible polymer powder. EFFECT: invention enables to obtain redispersible polymer powder with improved water repellence and reduced water absorption. 15 cl, 4 tbl, 15 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 506 285 (13) C2 (51) МПК C08L C08L C08C C08J C04B C04B 7/00 (2006.01) 7/02 (2006.01) 19/04 (2006.01) 3/12 (2006.01) 24/26 (2006.01) 28/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011102969/05, 25.06.2009 (24) Дата начала отсчета срока действия патента: 25.06.2009 (73) Патентообладатель(и): АКЦО НОБЕЛЬ Н.В. (NL) (43) Дата публикации заявки: 10.08.2012 Бюл. № 22 2 5 0 6 2 8 5 (45) Опубликовано: 10.02.2014 Бюл. № 4 (56) Список документов, цитированных в отчете о поиске: WO 2005118684 A1, 15.12.2005. GB 439777 A, 13.12.1935. DE ...

RUBBER MIX FOR LATERAL RUBBER AND PNEUMATIC RADIAL TIRE OF HIGHER STRENGTH

1. Резиновая смесь для боковой резины шины, отличающаяся тем, что содержит от 35 до 55 мас.ч. наполнителя, по меньшей мере, содержащего сажу, имеющую сорт не ниже, чем FEF, на 100 мас.ч. каучукового компонента, состоящего из, по меньшей мере, одного из натурального каучука, синтетического полиизопренового каучука и другого синтетического каучука на основе диена, ! где количество сажи в смеси, имеющей сорт не ниже, чем FEF, составляет от 15 до 55 мас.ч., и ! гистерезисные потери tan δ при 25°С и общее количество наполнителя в смеси удовлетворяют соотношению следующей формулы (I): ! tan δ / Общее количество наполнителя в смеси ≤0,0025…(I). ! 2. Резиновая смесь по п.1, отличающаяся тем, что натуральный каучук является модифицированным натуральным каучуком и от 40 до 70 мас.% каучукового компонента является модифицированным натуральным каучуком. ! 3. Резиновая смесь по п.1, отличающаяся тем, что синтетический каучук на основе диена является модифицированным синтетическим каучуком на основе диена и от 40 до 70 мас.% каучукового компонента является модифицированным синтетическим каучуком на основе диена. ! 4. Пневматическая радиальная шина повышенной прочности, отличающаяся тем, что используют резиновую смесь по любому из пп.1-3 в боковой резине. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 116 234 (13) A (51) МПК C08L 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2009116234/05, 28.09.2007 (71) Заявитель(и): БРИДЖСТОУН КОРПОРЕЙШН (JP) (30) Конвенционный приоритет: 29.09.2006 JP 2006-268798 (43) Дата публикации заявки: 10.11.2010 Бюл. № 31 (72) Автор(ы): ООХАРА Масаси (JP) (87) Публикация PCT: WO 2008/047582 (24.04.2008) R U (54) РЕЗИНОВАЯ СМЕСЬ ДЛЯ БОКОВОЙ РЕЗИНЫ И ПНЕВМАТИЧЕСКАЯ РАДИАЛЬНАЯ ШИНА ПОВЫШЕННОЙ ПРОЧНОСТИ (57) Формула изобретения 1. Резиновая смесь для боковой резины шины, отличающаяся тем, что содержит от 35 до 55 мас.ч. наполнителя, по меньшей мере, содержащего сажу, ...

Rubber-modified vinyl-based graft copolymer and thermoplastic resin composition comprising the same

본 발명의 고무변성 비닐계 그라프트 공중합체는 고무질 중합체를 포함하는 코어에 단량체 혼합물이 그라프트 중합되어 쉘을 형성한 코어-쉘 구조를 가지며, 상기 단량체 혼합물은 방향족 비닐계 단량체; 시안화 비닐계 단량체; 및 하기 화학식 1로 표시되는 실록산 화합물;을 포함하는 것을 특징으로 한다. 상기 고무변성 비닐계 그라프트 공중합체를 포함하는 열가소성 수지 조성물은 내충격성, 유동성, 외관 특성 등이 우수하다. [화학식 1] 상기 화학식 1에서, R 1 및 R 2 는 각각 독립적으로 탄소수 1 내지 5의 알킬기 또는 탄소수 6 내지 12의 아릴기이고, R 3 및 R 4 는 각각 독립적으로 탄소수 1 내지 15의 알킬렌기이고, R 5 및 R 6 는 각각 독립적으로 수소 원자 또는 탄소수 1 내지 3의 알킬기이며, n의 평균 값은 50 내지 1,000이다.

Method for producing optical member and ultraviolet curable resin composition used in same

[공정 1] 적어도 하나의 광학 기재(1, 2)에 특정의 자외선 경화형 수지 조성물을 도포하여 도포층(5)을 형성하고, 특정의 2개의 파장 범위의 조도비가 규정된 조건에서 자외선 조사하여 경화 부분과 미경화 부분을 갖는 광학 기재(1, 2)를 얻는 공정과, [공정 2] 얻어진 광학 기재(1, 2)의 미경화 부분에 다른 광학 기재(1, 2) 등을 접합하는 공정과, [공정 3] 접합된 광학 기재(1, 2)의 미경화 부분을 자외선 조사에 의해 경화시키는 공정을 포함하는 적어도 2개의 광학 기재(1, 2)가 접합된 광학 부재의 제조 방법. [Step 1] Applying a specific ultraviolet curable resin composition to at least one optical substrate (1, 2) to form the coating layer (5), and cured by irradiating with ultraviolet rays under prescribed conditions in which the illuminance ratio of two specific wavelength ranges is specified. A step of obtaining an optical substrate (1, 2) having a portion and an uncured portion; [Step 2] a step of bonding other optical substrates (1, 2) to the uncured portion of the obtained optical substrate (1, 2); , [Step 3] A method of manufacturing an optical member in which at least two optical substrates (1, 2) are bonded, including a step of curing an uncured portion of the bonded optical substrates (1, 2) by irradiation with ultraviolet rays.

Physical cross-linking agent, high oil absorption material and preparation method thereof

本发明提供了一种物理交联剂、高吸油材料及其制备方法，其采用甲基丙烯酸十二氟庚酯与未硫化的天然橡胶生胶以1:3‑8的用量复配使用，将其作为物理交联剂，并制备了高吸油材料。同时本发明采用悬浮聚合法制备高吸油材料，其中采用二步聚合的方式，提高了聚合反应的稳定性，并在第二步加入物理交联剂，避免了过早地产生大量缠结效应，影响单体聚合反应，造成产品的吸油倍率下降。本发明所制备的高吸油材料具有更加优异的疏水性能，还具备改善的吸油倍率，具有广泛的应用前景。本发明所制备的高吸油材料具有更加优异的疏水性能，还具备改善的吸油倍率，具有广泛的应用前景。

Manufacturing method of optical member and ultraviolet curable resin composition used therefor

［工程１］少なくとも１つの光学基材（１、２）に、特定の紫外線硬化型樹脂組成物を塗布して塗布層（５）を形成し、特定の２つの波長範囲の照度比が規定された条件で紫外線照射し、硬化部分と未硬化部分と有する光学基材（１、２）を得る工程と、［工程２］得られた光学基材（１、２）の未硬化部分に、他の光学基材（１、２）等を貼り合わせる工程と、［工程３］貼り合わせた光学基材（１、２）の未硬化部分を紫外線照射により硬化させる工程と、を含む少なくとも２つの光学基材（１、２）が貼りあわされた光学部材の製造方法。 [Step 1] A specific ultraviolet curable resin composition is applied to at least one optical substrate (1, 2) to form a coating layer (5), and an illuminance ratio between two specific wavelength ranges is defined. The step of obtaining an optical substrate (1, 2) having a cured portion and an uncured portion by irradiating with ultraviolet light under the above-mentioned conditions, [Step 2] other than the uncured portion of the obtained optical substrate (1, 2) A step of bonding the optical base materials (1, 2) and the like, and [Step 3] a step of curing an uncured portion of the bonded optical base materials (1, 2) by ultraviolet irradiation. The manufacturing method of the optical member with which the base material (1,2) was pasted.

Shock aromatic vinyl polymer obtained from a rubber carrying a group that generates a stable free radical

L'invention concerne un procédé de préparation d'une composition comprenant une matrice de polymère vinylaromatique et des particules de caoutchouc, ledit procédé comprenant une étape de polymérisation d'au moins un monomère vinylaromatique en présence d'un caoutchouc comprenant un groupement générateur d'un radical libre stable. Le procédé selon l'invention permet l'obtention de morphologies différentes de celles du salami, comme la morphologie labyrinthe, oignon ou capsule, par exemple dans le but d'augmenter la brillance du polymère vinylaromatique choc. The invention relates to a process for preparing a composition comprising a vinylaromatic polymer matrix and rubber particles, said process comprising a step of polymerization of at least one vinylaromatic monomer in the presence of a rubber comprising a group generating a stable free radical. The method according to the invention makes it possible to obtain morphologies different from those of salami, such as the labyrinth, onion or capsule morphology, for example in order to increase the gloss of the impact vinyl aromatic polymer.

ELASTOMERIC COMPOSITIONS MODIFIED BY SILANES

1. Способ модификации диенового эластомера посредством реакции с олефинненасыщенным силаном, включающим по меньшей мере одну гидролизуемую группу, присоединенную к атому кремния, в присутствии соединения, способного генерировать в диеновом эластомере свободнорадикальные реакционные центры, отличающийся тем, что силан имеет формулуили,в которой R означает гидролизуемую группу; R' означает гидрокарбильную группу, содержащую от 1 до 6 атомов углерода; а составляет от 1 до 3 включительно; Y означает двухвалентную органическую пространственно разделяющую соединительную группу, включающую по меньшей мере один атом углерода, отделяющий соединительную группу -C(O)Х- от атома Si, и R'' означает водород или группу, оказывающую электроноакцепторное действие на -CH=CH- или -С≡С- связь; и X выбран из S и О.2. Способ по п.1, отличающийся тем, что каждая группа R в ненасыщенном силане (I) или (II) представляет собой алкоксигруппу.3. Способ по п.1, отличающийся тем, что ненасыщенный силан (I) или (II) подвергают частичному гидролизу и конденсации с образованием олигомеров.4. Способ по п.1, отличающийся тем, что ненасыщенный силан (I) включает γ-акрилоксипропилтриметоксисилан и/или γ-акрилоксипропилтриэтоксисилан.5. Способ по п.1, отличающийся тем, что ненасыщенный силан (I) включает акрилоксиметилтриметоксисилан и/или акрилоксиметилтриэтоксисилан.6. Способ по п.1, отличающийся тем, что силан получен смешиванием функционализированного вторичной аминогруппой алкоксисилана или меркаптопропилалкоксисилана с полифункционализированным органическим фрагментом, содержащим по меньшей мере 2 акрилоксигруппы.7. Способ по п.6, отличающийся тем, что силан по� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2011 141 342 A (51) МПК C08C 19/25 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2011141342/05, 28.04.2010 (71) Заявитель(и): ДОУ КОРНИНГ КОРПОРЕЙШН (US) Приоритет(ы): (30) Конвенционный приоритет: 30.04.2009 GB 0907448.5; 06.01. ...

Method of producing graft copolymers based on sodium poly(aspartate) and obtained graft copolymers

FIELD: chemistry.SUBSTANCE: present invention relates to a method of producing graft copolymers based on sodium polyaspartate. Described is a method of producing graft copolymers of polyaspartate, involving: providing a certain amount of sodium polyaspartate; adding water to the sodium polyaspartate; mixing the sodium polyaspartate with water to facilitate dissolution of the sodium polyaspartate and formation of a solution; bringing pH of the solution to a value ranging from about 3.0 to about 7.0; adding to said solution ammonium-iron (II) sulphate in an amount ranging from about 0.1 to about 30% of the mass of the solution; bubbling nitrogen through the solution while stirring; adding hydrogen peroxide to the solution in an amount ranging from about 0.1 to about 50% of the mass of the solution; adding to the solution at least one monomer selected from a group consisting of acrylic acid, hydroxymethyl acrylate, hydroxyethyl acrylate, acrylamide methylpropane sulphonic acid, vinyl pyrrolidone, acrylamide diacetone, vinyl sulphonic acid, dimethyl acrylamide, diethyl acrylamide, N-isopropyl acrylamide, isobutyl acrylamide, n-butyl acrylamide, vinyl imidazole, vinyl caprolactam, dimethyl aminomethyl acrylate, dimethyl aminoethyl acrylate and diethyl aminomethyl acrylate before or after adding hydrogen peroxide; further carrying out of the process under a layer of nitrogen while stirring at room temperature; and, optionally, cleaning the obtained polymer and separating the polymer by sublimation drying.EFFECT: obtaining graft copolymers with high output.7 cl, 8 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 485 141 (13) C2 (51) МПК C08F 283/04 C08F 267/00 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011109950/04, 27.08.2009 (24) Дата начала отсчета срока действия патента: 27.08.2009 (73) Патентообладатель(и): НАНОКЕМ СОЛЮШНС, ИНК. (US) (43) Дата публикации заявки: 20.10.2012 Бюл. № 29 2 4 8 5 1 4 ...

A kind of preparation method of the excellent composite modified rubber asphalt of antistrip performance

本发明公开了一种抗剥落性能优异的复合改性橡胶沥青的制备方法，包括下列步骤：将15‑25重量份的轮胎橡胶粉，65‑75重量份的道路石油沥青，在190‑220℃的条件下搅拌，随后加入2‑4重量份的丙烯酸羟丙酯，2‑4重量份的二甲基丙烯酸乙二醇酯，0.3重量份的单质硫作为交联剂，在190‑210℃的温度下，先采用高速剪切机剪切，得到复合改性沥青混合物，保持余温经过静置30min的发育浸润，加入1‑2重量份的邻苯二甲酸二异丙酯，再在180‑200℃的条件下，使用搅拌机匀速搅拌，制备完成复合改性橡胶沥青。本发明的制备方法获得的改性橡胶沥青能够在保持良好高温性能的同时，提高了一般橡胶沥青的抗剥落性能与粘附性。

COMPOUNDS CARRYING ASSOCIATIVE NITROGEN GROUPS

L'invention concerne un composé de formule (I) A1 - Q1 - Sx - Q2 - A2 (I) dans laquelle - A1 et A2 représentent indépendamment l'un de l'autre un groupe associatif comprenant au moins un atome d'azote, - Q1 et Q2 représentent indépendamment l'un de l'autre un groupe de liaison, - x est un nombre entier allant de 2 à 6. L'invention concerne également une composition de caoutchouc comprenant ce composé. The invention relates to a compound of formula (I) A1-Q1-S1-Q2-A2 (I) in which - A1 and A2 represent, independently of one another, an associative group comprising at least one nitrogen atom, - Q1 and Q2 independently of one another are a linking group, - x is an integer from 2 to 6. The invention also relates to a rubber composition comprising this compound.

USE OF A COMBINATION OF TWO TYPES OF WELL-DIFFERENT COUPLING AGENTS, AS A COUPLING SYSTEM (WHITE-ELASTOMERIC CHARGE) IN RUBBER COMPOSITIONS COMPRISING AN INORGANIC LOAD

POLYBUTADIENE ISOPRENE GRAFT RUBBER, PROCESS FOR PREPARING THE SAME, AND VULCANISATE AND MIXTURE COMPOUND THEREOF

La présente invention concerne un caoutchouc d'isoprène greffé de polybutadiène, un procédé de préparation dudit caoutchouc d'isoprène greffé de polybutadiène, un caoutchouc d'isoprène greffé de polybutadiène préparé par le procédé, et un vulcanisat et un mélange préparés à partir du caoutchouc d'isoprène greffé de polybutadiène. Dans le caoutchouc d'isoprène greffé de polybutadiène, calculées sur la base du poids total du caoutchouc d'isoprène greffé de polybutadiène, la teneur en motifs structurels butadiène est de 0,5 à 8 % en poids, la teneur en motifs structurels isoprène est de 92 à 99,5 % en poids ; la masse moléculaire moyenne en nombre du caoutchouc d'isoprène greffé de polybutadiène est de 2 x 10 à 5 x 10 , la distribution des masses moléculaires est de 3 à 4, le facteur de ramification est de 0,5 à 0,98, et la teneur en structure cis-1,4 est de 95 à 99 % en poids. Le caoutchouc d'isoprène greffé de polybutadiène de la présente invention a non seulement des propriétés mécaniques extraordinaires, mais aussi une usinabilité préférable. De plus, le procédé de préparation de la présente invention est simple, facile à contrôler, et peut contrôler efficacement et précisément la composition et la masse moléculaire du polymère préparé. Par conséquent, le procédé a une grande valeur pour une application industrielle. The present invention relates to a polybutadiene grafted isoprene rubber, a process for preparing said polybutadiene grafted isoprene rubber, a polybutadiene grafted isoprene rubber prepared by the process, and a vulcanizate and a mixture prepared from the rubber isoprene grafted polybutadiene. In polybutadiene grafted isoprene rubber, calculated on the basis of the total weight of polybutadiene grafted isoprene rubber, the content of butadiene structural units is 0.5 to 8% by weight, the content of isoprene structural units is from 92 to 99.5% by weight; the number average molecular weight of the grafted isoprene rubber ...

SHOCK VINYLAROMATIC POLYMER OBTAINED FROM A RUBBER CARRIER OF A GROUP GENERATING A STABLE FREE RADICAL

L'invention concerne un procédé de préparation d'une composition comprenant une matrice de polymère vinylaromatique et des particules de caoutchouc, ledit procédé comprenant une étape de polymérisation d'au moins un monomère vinylaromatique en présence d'un caoutchouc comprenant un groupement générateur d'un radical libre stable.Le procédé selon l'invention permet l'obtention de morphologies différentes de celles du salami, comme la morphologie labyrinthe, oignon ou capsule, par exemple dans le but d'augmenter la brillance du polymère vinylaromatique choc. The invention relates to a process for preparing a composition comprising a vinyl aromatic polymer matrix and rubber particles, said process comprising a step of polymerizing at least one vinyl aromatic monomer in the presence of a rubber comprising a group generating. a stable free radical. The process according to the invention makes it possible to obtain morphologies different from those of salami, such as the labyrinth, onion or capsule morphology, for example with the aim of increasing the gloss of the impact vinylaromatic polymer.

PROCESS FOR GRAFTING A NATURAL RUBBER LATEX

Dispersion polymerization process of vinyl monomers

Improved polystyrene

SHOCK VINYLAROMATIC POLYMER OBTAINED FROM A RUBBER CARRIER OF A GROUP GENERATING A STABLE FREE RADICAL

Curable resin composition, adhesive composition, bonded product, speaker and bonding method

본 발명은 중합성 비닐 단량체(1), 중합 개시제(2), 방향족 아민 및/또는 피리딘 유도체(3), β-디케톤 킬레이트 및/또는 β-케토-에스테르(4), 및 인산염(5)를 함유하는 경화성 수지 조성물에 관한 것이다. The present invention relates to polymerizable vinyl monomers (1), polymerization initiators (2), aromatic amines and / or pyridine derivatives (3), β-diketone chelates and / or β-keto-esters (4), and phosphates (5) It relates to curable resin composition containing.

Modified natural rubber or modified natural rubber latex, and rubber composition and pneumatic tire

There are provided a modified natural rubber made from a modified natural rubber latex, in which a polar group-containing monomer is graft-polymerized to natural rubber latex, and a rubber composition comprising such a modified natural rubber and carbon black and/or silica. Also, there are provided a modified natural rubber latex in which a tin-containing monomer or an alkoxysilyl group-containing monomer is graft-polymerized to natural rubber latex and a modified natural rubber made therefrom and a rubber composition comprising such a modified natural rubber.

Method for producing graft copolymer, graft copolymer obtained by the method, rubber composition containing the graft copolymer, and tire

본 발명은 수성 매체 중에 있어서, 중합 제어제의 존재 하에, 천연 고무 및/또는 합성 디엔계 고무로 이루어지는 고무 성분에 라디칼 중합성 단량체를 리빙 라디칼 그래프트 중합시키는 것을 특징으로 하는, 그래프트 공중합체의 제조 방법, 이 방법으로 얻어진 그래프트 공중합체를 함유하는 고무 조성물, 및 상기 고무 조성물을 타이어 부재 중 어느 하나에 사용하여 이루어지는 타이어, 천연 고무 및/또는 합성 디엔계 고무에 라디칼 중합성 단량체, 특히 관능기 함유 라디칼 중합성 단량체를 리빙 라디칼 그래프트 중합시켜 그래프트 공중합체를 효율적으로 제조하는 방법, 이 방법으로 얻어진 그래프트 공중합체를 포함하는, 저발열성 및 내마모성이나 파괴 특성 등이 우수한 고무 조성물, 및 상기 고무 조성물을 타이어 부재 중 어느 하나에 사용하여 이루어지는 상기 성상을 갖는 타이어를 제공하는 것이다. The present invention relates to a method for producing a graft copolymer, which comprises the step of subjecting a rubber component comprising a natural rubber and / or a synthetic diene rubber to a living radical graft polymerization of a radical polymerizable monomer in an aqueous medium in the presence of a polymerization initiator , A rubber composition containing a graft copolymer obtained by this method, and a rubber composition comprising the rubber composition in a tire, a natural rubber and / or a synthetic diene rubber, which is obtained by using the rubber composition in any one of the tire members, and a radically polymerizable monomer, A method for efficiently producing a graft copolymer by living radical graft polymerization of a maleic anhydride monomer, a graft copolymer obtained by the method, and a rubber composition excellent in low heat build-up, abrasion resistance and fracture characteristics, Or < RTI ID = 0.0 > Luer being to provide a tire having the above properties.

Modified natural rubber particle, process for producing the modified natural rubber particle, and modified natural rubber latex

본 발명은 그래프트 공중합된 모노머 중의 탄소의 이중결합을 표면에 갖는 개질 천연고무입자 및 이의 제조 방법을 제공하는 것으로서, 개질 천연고무입자는 천연고무입자 또는 탈단백질화 천연고무입자에, 탄소의 이중결합을 2 이상 갖는 다관능 비닐 모노머가 그래프트 공중합되어 이루어지고, 표면에 그래프트 공중합된 상기 다관능 비닐 모노머 중의 탄소의 이중결합을 가지며, 개질 천연고무입자의 제조방법 중 하나는 탄소의 이중결합을 2 이상 갖는 다관능 비닐 모노머와 포접보호제를 반응시키고, 상기 이중결합 중 하나 이상이 상기 포접보호제에 의해 보호된 포접보호착체를 합성하는 포접보호착체 합성공정, 천연고무입자 또는 탈단백질화 천연고무입자에, 합성한 상기 포접보호착체를 그래프트 공중합시키는 그래프트화 공정 및 수득된 그래프트 공중합체로부터 상기 포접보호제를 제거하는 탈보호공정을 구비하는 것을 특징으로 한다. The present invention provides a modified natural rubber particle having a double bond of carbon in its surface in a graft copolymerized monomer and a process for producing the modified natural rubber particle, The modified natural rubber particles are obtained by graft-copolymerizing natural rubber particles or de-proteinated natural rubber particles with polyfunctional vinyl monomers having at least two carbon-carbon double bonds and graft-copolymerizing two or more carbon atoms in the polyfunctional vinyl monomer graft- One of the methods for preparing modified natural rubber particles is to react a polyfunctional vinyl monomer having at least two double bonds of carbon with an inclusion protective agent and reacting the inclusion protective agent with at least one of the double bonds protected by the inclusion protective agent , A grafting step of graft copolymerizing the above-mentioned inclusion protective complexes with natural rubber particles or de-proteinated natural rubber particles, and a step of removing the inclusion protective agent from the resultant graft copolymer And FIG.

Use of a combination of two types of different coupling agents as coupling system white filler-elastomer in rubber compositions comprising an inorganic filler

본 발명은 하기를 포함하는 고무 조성물에서 무기 - 엘라스토머 충전제 커플링제로서의 유효량의 다관능성 커플링계 (A) 의 용도에 관한 것이다: The present invention relates to the use of an effective amount of a multifunctional coupling system (A) as an inorganic-elastomer filler coupling agent in a rubber composition comprising: (B) 천연 또는 합성 고무와 같은 하나 이상의 엘라스토머; (B) at least one elastomer, such as natural or synthetic rubber; (C) 강화 충전제로서의 무기 충전제; (C) inorganic fillers as reinforcing fillers; (D) 특히 하나 (또는 그 이상) 의 가황제(들) 을 포함하는, 통상 사용되는 구성성분 또는 첨가제 전부 또는 일부. (D) All or part of commonly used constituents or additives, in particular comprising one (or more) vulcanizing agent (s). 상기 용도는 상기 다관능성 커플링계가 하기 성분 (A1) 및 (A2) 의 배합으로 이루어지는 것을 특징으로 한다: The use is characterized in that the multifunctional coupling system consists of a combination of the following components (A1) and (A2): (A1) 은, 하기 화학식 (I) 의 관능화 유기실리시움 화합물로부터 선택되는 하나 이상의 커플링제이다: (A1) is at least one coupling agent selected from functionalized organosilisium compounds of formula (I): [(G 0 ) 3 SiO 1 /2 ] m [(G 0 ) 2 SiO 2 /2 ] n [G 0 Si0 3 /2 ] 0 [SiO 4 /2 ] p [(G 2 ) a (G 1 ) a' (Z-CO-N=N-CO-A)SiO (3-a-a')/2 ] q 기 {식 중, 기호 Z, A, G 0 , G 1 , G 2 , a, a', m, n, o 및 p 는 제 1 항에 정의된 바와 같음]; [(G 0) 3 SiO 1 /2] m [(G 0) 2 SiO 2/2] n [G 0 Si0 3/2] 0 [SiO 4/2] p [(G 2) a (G 1) a ' (Z-CO-N = N-CO-A) SiO (3-a-a') / 2 ] q Group (wherein, symbols Z, A, G 0 , G 1 , G 2 , a, a ', m, n, o and p are as defined in claim 1; (A2) 는, 폴리황화 "대칭" 실란 또는 황화 "비대칭" 실란으로부터 선택되는 하나 이상의 커플링제이고; 상기 다관능성 커플링계 (A) 는 이소프렌 엘라스토머-기재 고무 조성물에 혼입된다. (A2) is at least one coupling agent selected from polysulfide “symmetric” silanes or sulfided “asymmetric” silanes; The multifunctional coupling system (A) is incorporated in an isoprene elastomer-based rubber composition.

Resin modifier

Rubber composition and tire using same

Partially crosslinked elastomeric polymers and process for producing the same

ABSTRACT OF THE DISCLOSURE A partially crosslinked, unsaturated elastomsric polymer of a C4 to C7 isomonoolefin and a C4 to C14 conjugated multiolefin is provided which has a low crosslink density. The partially crosslinked polymer is produced by during an uncrosslinked unsaturated polymer having a low level of chemically bound halogen with a curing agent which reacts only with the halogen. Processes for preparing these partially crosslinked unsaturated polymers are also provided.

Natural rubber-containing thermoplastic resin composition and molded article thereof

본 발명은, 천연 고무 라텍스를 사용하여 번잡한 천연 고무의 탈단백화 처리를 필요로 하지 않고, 내충격성, 유동성 및 색조의 밸런스가 우수한 물성을 가지는 천연 고무 함유 열가소성 수지 조성물을 제공하는 것을 과제로 한다. 그리고 해결 수단은 중량 평균 입자 지름이 0.3~1.2 ㎛의 범위에 있는 천연 고무 10~70 질량% 및 중량 평균 입자 지름이 0.2~0.4 ㎛의 범위에 있는 합성 고무 30~90 질량%로 이루어지는 고무상 중합체(R)에 적어도 방향족 비닐계 단량체를 포함하는 비닐계 단량체 혼합물(a)을 그래프트 중합하여 이루어지는 그래프트 공중합체(A)를 포함하는 천연 고무 함유 열가소성 수지 조성물이며, 천연 고무 입자가, 입자 지름 1.0 ㎛ 이상의 천연 고무 입자를 5 질량% 이상 포함하고, 고무상 중합체(R) 입자에서의 입자 지름 1.0 ㎛ 이상의 입자에서의 내부 그래프트율이 20% 이상인 천연 고무 함유 열가소성 수지 조성물이다. Disclosure of the Invention It is an object of the present invention to provide a natural rubber-containing thermoplastic resin composition which does not require the depolymerization treatment of a complicated natural rubber using a natural rubber latex, and has physical properties excellent in impact resistance, fluidity and color balance do. The solution is prepared by mixing 10 to 70% by mass of a natural rubber having a weight average particle diameter in the range of 0.3 to 1.2 占 퐉 and 30 to 90% by mass of a synthetic rubber having a weight average particle diameter in a range of 0.2 to 0.4 占 퐉. (A) obtained by graft-polymerizing a vinyl monomer mixture (a) containing at least an aromatic vinyl monomer to a rubber (R), wherein the natural rubber particles have a particle diameter of 1.0 占 퐉 By mass or more of the above natural rubber particles and having an internal graft ratio of 20% or more in particles having a particle diameter of 1.0 占 퐉 or more in the rubber-like polymer (R) particle.

Curable resin composition, adhesive composition, bonded product, speaker and bonding method

Modified natural rubber particle, production method thereof, and modified natural rubber latex

A modified natural rubber particle having carbon-carbon double bonds assigned to multifunctional vinyl monomers graft-copolymerized onto the surface of the modified natural rubber particle, which is prepared by graft-copolymerization of multifunctional vinyl monomers having two or more carbon-carbon double bonds onto natural rubber particles or deproteinized natural rubber particles. One of the methods for producing a modified natural rubber particle includes the steps of: forming inclusion complex of the multifunctional vinyl monomers having two or more carbon-carbon double bonds with a guest-protecting agent to protect at least one of the double bonds of the multifunctional vinyl monomers; graft-copolymerizing the resulting inclusion complex onto natural rubber particles or deproteinized natural rubber particles; and deprotecting the protected double bonds by removing the guest-protecting agent from the obtained graft-copolymer.

Redispersible polymer powder

Adhesive sheet

Tire and crosslinkable elastomeric composition

Tire comprising at least one structural element including a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition comprising a crosslinkable elastomeric base comprising at least 30 phr, preferably of from 50 phr to 100 phr, of at least one elastomeric polymer grafted with at least one phenolic resin. Preferably, said structural element is a tire tread band.

Prefabricated part with polymer shell layer and preparation method thereof

本发明公开了一种设有聚合物壳层的预制件及其制备方法。所述设有聚合物壳层的预制件的制备方法包括以下步骤：(1)将软段聚合物溶解于硬段聚合物单体中，搅拌均匀得到聚合物溶液a；(2)另取引发剂溶解于溶剂中，得到溶液b；(3)在搅拌的作用下，将溶液a与b混合；(4)将上述得到的聚合物溶液涂敷于模板上，通过紫外光进行固化形成预聚物；(5)在上述预聚物上浇筑模块材料；(6)将浇筑模块材料的模板加热，待模块材料固化后，脱模得到设有聚合物壳层的预制件。本发明得到的聚合物壳层设于预制件表面为预制件的一部分，在预制件的表面形成造型，对预制件内部材料起到保护的作用。

Pressure sensitive compositions based on a modified rubber polymer aqueous dispersion

The invention relates to an aqueous polymer dispersion which comprises : a) an aqueous polymer dispersion comprising grafted rubber polymeric particles from rubber polymer being selected from natural or synthetic rubber, b) an aqueous polymer dispersion with polymeric particles of a second polymer comprising monomeric units derived from a monomeric composition b) comprising : b1) a (meth)acrylate of a linear or branched alcohol in C4 to C10 or a mixture of such (meth)acrylates, said (meth)acrylate having Tgb1 lower than -30°C, b2) optionally, at least one comonomer having Tgb2 higher than -30°C, with said grafted rubber polymeric particles being grafted in an aqueous dispersion by a part of said monomeric composition b) as defined above. The invention covers also a specific process of preparation of said dispersion, an adhesive composition comprising said dispersion, the use of said dispersion in pressure sensitive adhesives and the resulting adhesive.

Natural rubber, rubber composition comprising natural rubber and method for producing same, and tire

提供一种保持加工性且具有优异的耐断裂性和耐摩耗性的天然橡胶，包以及其橡胶组合物和使用其制备的轮胎。所述天然橡胶特征在于：其为天然胶乳或凝胶化或聚合的天然橡胶，其包括，通过包括在10,000至1,000,000G的离心加速度下离心分离并利用多角度光散射检测器和场流分级设备测量溶液中的可溶组分的橡胶分子量的测量方法测定的，分子量为5,000,000至50,000,000的高分子量组分(P1)15质量％以上和分子量超过50,000,000的超高分子量组分(P2)40质量％以下，并且P1的质量％和P2的质量％之间的关系为1.5×P1的质量％≥P2的质量％。所述天然橡胶用作橡胶组合物和轮胎。

Polymerization of vinyl compounds with rubber

Modified natural rubber particle, process for producing the modified natural rubber particle, and modified natural rubber latex

本发明提供在表面具有被接枝共聚的单体中的碳双键的改性天然橡胶粒子及其制造方法。改性天然橡胶粒子是使天然橡胶粒子或脱蛋白质化天然橡胶粒子与具有二个以上碳双键的多官能乙烯基单体接枝共聚而成的，在其表面具有被接枝共聚的该多官能乙烯基单体中的碳双键。天然橡胶粒子的制造方法之一具有如下工序：包接保护络合物合成工序：使具有二个以上碳双键的多官能乙烯基单体与包接保护剂反应，合成该双键的至少一个被该包接保护剂保护的包接保护络合物；接枝化工序：使天然橡胶粒子或脱蛋白质化天然橡胶粒子与所合成的该包接保护络合物进行接枝共聚；脱保护工序：从所得到的接枝共聚物除去该包接保护剂。

Self-repairing rubber based on Diels-Alder reaction and preparation method thereof

本发明属于橡胶高分子技术领域，涉及一种基于Diels‑Alder反应的自修复橡胶的制备方法，首先将含羟基的乙烯类单体用糠醛进行缩醛改性，然后接枝橡胶，最后添加交联剂双马来酰亚胺，制备具有自修复、可回收的橡胶。本发明将Diels‑Alder反应引入橡胶，使其具有良好的力学性能、耐热性，并具有高的自修复效率；制备方法简单高效、实用性强，易于推广。

USE OF A COMBINATION OF TWO DIFFERENT TYPES OF LUBRICANTS AS A LUBRICATION SYSTEM (WHITE FILLER ELASTOMER) IN POWDER MATERIALS CONTAINING INORGANIC FILLER COMPOSITIONS

Cationic graft-modified natural rubber latex

Low-profile additives based on renewable raw materials

Gegenstand der Erfindung ist die Verwendung von Polymerisaten auf Basis von nachwachsenden Rohstoffen als LPA, dadurch gekennzeichnet, dass die Polymerisate auf Basis von nachwachsenden Rohstoffen erhältlich sind durch radikalisch initiierte Polymerisation von einem oder mehreren ethylenisch ungesättigten Monomeren in Gegenwart von einem oder mehreren nachwachsenden Rohstoffen ausgewählt aus der Gruppe umfassend Kohlenhydrate und Naturkautschuks. The invention relates to the use of polymers based on renewable raw materials as LPA, characterized in that the polymers based on renewable raw materials are obtainable by radical-initiated polymerization of one or more ethylenically unsaturated monomers in the presence of one or more renewable raw materials selected from the group comprising carbohydrates and natural rubber.

Tire and crosslinkable elastomeric composition

一种轮胎，它包括至少一种结构元件，所述结构元件包括通过交联可交联的弹性体组合物而获得的交联弹性体材料，所述可交联的弹性体组合物包括含至少30phr，优选50phr－100phr用至少一种酚醛树脂接枝的至少一种弹性体聚合物的可交联的弹性体基础成分。所述结构元件是轮胎胎面胶。

A kind of preparation method of 3D printing powdered rubber material

本发明涉及一种3D打印用粉末橡胶材料的制备方法，用接枝单体对橡胶胶乳粒子表面接枝一层硬质壳体，有助于橡胶胶乳粉末化，硬质壳体具有隔离作用，防止橡胶粉体间的粘结。添加少量补强剂，可提高橡胶强度，也具有一定隔离作用。无机晶须力学性能优异，强度高，模量高，耐高温、耐腐蚀性、耐磨性优异，膨胀系数低，收缩率小；晶须经偶联剂表面改性后能有效与橡胶胶粒复合。晶须为针状材料，可穿插在球形橡胶粒子之间，提高粉体堆积密度，流动性好，能够满足3D打印对粉体材料的各项要求，制品力学性能优异，收缩率小，精度高。

Thermoplastic resin, method for preparing the same and thermoplastic resin composition comprision the same

본 발명은 열가소성 수지에 관한 것으로, 보다 상세하게는 a) 에틸렌-α-올레핀 고무, b) 비닐 시안 화합물 및 c) 방향족 비닐 화합물을 포함하는 혼합물;과 d) 테르펜;을 포함하여 그라프트 중합된 것을 특징으로 하는 열가소성 수지에 관한 것이다. 본 발명에 따르면 동등 이상의 충격강도 및 광택도를 가지면서도, 착색성 및 내후성이 뛰어난 열가소성 수지, 이의 제조방법 및 이를 포함하는 열가소성 수지 조성물을 제공하는 효과가 있다.

Modified natural rubber particle, process for producing the modified natural rubber particle, and modified natural rubber latex

本发明提供在表面具有被接枝共聚的单体中的碳双键的改性天然橡胶粒子及其制造方法。改性天然橡胶粒子是使天然橡胶粒子或脱蛋白质化天然橡胶粒子与具有二个以上碳双键的多官能乙烯基单体接枝共聚而成的，在其表面具有被接枝共聚的该多官能乙烯基单体中的碳双键。天然橡胶粒子的制造方法之一具有如下工序：包接保护络合物合成工序：使具有二个以上碳双键的多官能乙烯基单体与包接保护剂反应，合成该双键的至少一个被该包接保护剂保护的包接保护络合物；接枝化工序：使天然橡胶粒子或脱蛋白质化天然橡胶粒子与所合成的该包接保护络合物进行接枝共聚；脱保护工序：从所得到的接枝共聚物除去该包接保护剂。

The manufacturing method of optical component and ultraviolet-curing resin composition for the manufacturing method

一种光学构件的制造方法，所述光学构件通过将至少两个光学基材(1、2)贴合而得到，并且该制造方法包括：[工序1]通过在至少一个光学基材(1、2)上涂布特定的紫外线固化型树脂组合物而形成涂布层(5)，并在规定了特定的2个波长范围的照度比的条件下进行紫外线照射，从而得到具有固化部分和未固化部分的光学基材(1、2)的工序；[工序2]将另一个光学基材(1、2)等贴合到工序1中得到的光学基材(1、2)的未固化部分的工序；和[工序3]通过紫外线照射而使贴合后的光学基材(1、2)的未固化部分固化的工序。

Guayule resin multipolymer.

Se describe un m?todo para preparar multipol?meros de resina de guayule con mon?meros metacr?licos, acr?licos, vin?licos y estir?nicos y las composiciones resultantes. Como resultado de la multipolimerizaci?n, se mejoran las propiedades f?sicas y qu?micas de la resina. La ventaja primaria de la multipolimerizaci?n con respecto a mezclas de resina con homopol?meros es que ?sta lleva a un material homog?neo, cuyas propiedades pueden ser reguladas ajustando la proporci?n de la concentraci?n de mon?meros en el material de abastecimiento. Una caracter?stica atractiva es la producci?n de resinas de baja viscosidad con grupos reactivos que pueden competir directamente con olig?meros y macromon?meros utilizados en tintas, revestimientos y adhesivos libres de solventes. El bajo costo de la resina, un subproducto de la extracci?n de hule hipoalerg?nico a partir de guayule y otras plantas que tienen hidrocarburos de hule e hidrocarburos tipo hule provee copol?meros h?bridos de bajo peso molecular que son competitivos en cuanto a costos con los olig?meros de la t?cnica m?s avanzada.

Method for emulsifying AKD (alkyl ketene dimer) by modified natural rubber

本发明提供了一种改性天然橡胶乳化AKD的方法，包括：将天然胶乳稀释后进行加热，得到加热天然胶乳；在加热天然胶乳中加入PVA并混合均匀，得到混合天然胶乳；在混合天然胶乳中加入聚合单体A、聚合单体B、引发剂，搅拌反应一定时间后冷却，得到改性胶乳；将AKD蜡片、松香混合后高温熔融，得到AKD熔融物；将改性胶乳加入到AKD熔融物中，并加入助剂，在高速剪切条件下加入热水，并继续高速剪切20‑60min，冷却后得到改性天然橡胶乳化的的AKD乳液。本发明制备得到的AKD乳液具有良好的储存稳定性，长时间储存液不会出现乳液分层的现象。同时该乳液还具有成膜性好，抗水效果好的优点，可以用于纤维基材料的抗水方面。

A kind of gutta-percha selfreparing gel process for preparing

一种杜仲胶自修复凝胶制备方法，涉及一种自修复凝胶制备方法，本发明方法采用自由基聚合机理，将丙烯酸酯类单体接枝到杜仲胶上，并进一步交联后制得杜仲胶自修复凝胶。首先，配置一定浓度的杜仲胶溶液；然后，向该体系中加入自由基引发剂，同时滴加丙烯酸酯类单体；在一定温度下反应至其分相，继续反应一段时间后产物经洗涤、干燥后制得自修复凝胶。切断的凝胶在60℃下拼接接触3 h，修复效率可达60%以上；接触12h，修复效率达到92%。该自修复凝胶发展了杜仲胶的功能性，提高了材料的安全性和耐久性，对杜仲胶向涂料、粘合剂、生物医药、建筑、传感器、航空航天、海洋工业等应用领域的拓展具有重要促进意义。

Natural rubber, rubber composition comprising natural rubber and method for producing same, and tire

Provided are a natural rubber which maintains processability and is excellent in a breaking resistance and a wear resistance, a rubber composition containing the above natural rubber, and a tire prepared by using the same. The natural rubber of the present invention is obtained by gelatinizing or multi-coupling a natural rubber latex or a natural rubber and comprises 15 % by mass or more of a high molecular weight component, P1, having a molecular weight of 5,000,000 to 50,000,000 and 40 % by mass or less of an ultrahigh molecular weight component, P2, having a molecular weight of exceeding 50,000,000, and the relation between mass% of P1 and mass% of P2 is 1.5 × mass% of P1 ≥ mass% of P2, each measured by the following measuring method, wherein a measuring method for a rubber molecular weight is measured by means of a field flow fractionation equipment with a multi-angle light scattering detector for a soluble part of a centrifuged rubber solution at a centrifugal acceleration of 10,000 to 1,000,000 G.

Polybutadiene grafted isoprene rubber, processes for preparing polybutadiene grafted isoprene rubber, mixed compositions and vulcanized forms thereof

Disclosed herein are polybutadiene grafted isoprene rubber, processes for preparing polybutadiene grafted isoprene rubber, mixed compositions and vulcanized forms thereof.

Natural rubber-containing thermoplastic resin composition and molded article thereof

本発明は、天然ゴムラテックスを使用し、煩雑な天然ゴムの脱蛋白化処理を必要とすることなく、耐衝撃性、流動性および色調のバランスに優れた物性を有する天然ゴム含有熱可塑性樹脂組成物を提供することを課題とする。そして解決手段は重量平均粒子径が０．３〜１．２μｍの範囲にある天然ゴム１０〜７０質量％及び重量平均粒子径が０．２〜０．４μｍの範囲にある合成ゴム３０〜９０質量％からなるゴム状重合体（Ｒ）に少なくとも芳香族ビニル系単量体を含むビニル系単量体混合物（ａ）をグラフト重合してなるグラフト共重合体（Ａ）を含む天然ゴム含有熱可塑性樹脂組成物であって、天然ゴム粒子が、粒子径１．０μｍ以上の天然ゴム粒子を５質量％以上含み、かつ、ゴム状重合体（Ｒ）粒子における粒子径１．０μｍ以上の粒子における内部グラフト率が２０％以上である天然ゴム含有熱可塑性樹脂組成物である。 The present invention uses a natural rubber latex, and does not require a complicated deproteinization treatment of natural rubber, and has a natural rubber-containing thermoplastic resin composition having excellent physical properties such as impact resistance, fluidity and color tone. The issue is to provide goods. The solution means 10 to 70% by mass of natural rubber having a weight average particle size in the range of 0.3 to 1.2 μm and 30 to 90% of synthetic rubber having a weight average particle size in the range of 0.2 to 0.4 μm. % -Containing rubber-like polymer (R) and a natural rubber-containing thermoplastic comprising a graft copolymer (A) obtained by graft polymerization of a vinyl monomer mixture (a) containing at least an aromatic vinyl monomer. A resin composition, wherein the natural rubber particles contain 5% by mass or more of natural rubber particles having a particle diameter of 1.0 μm or more, and the internal diameter of the rubber-like polymer (R) particles is 1.0 μm or more. A natural rubber-containing thermoplastic resin composition having a graft ratio of 20% or more.

Preparation of impact modifiers for thermoplastic resin

내용 없음. No content.

Compounds having a nitrogen-containing linking group

本発明は、式（Ｉ）の化合物に関し、式中、Ａ１及びＡ２は、相互に独立に、少なくとも１個の窒素原子を含む結合基であり；Ｑ１及びＱ２は、相互に独立に、結合基であり、ｘは、２〜６、好ましくは、３〜６の範囲の整数である。本発明はまた、前記化合物を含むゴム組成物にも関する。

Thermoplastic resin composition and molded article formed thereof

A thermoplastic resin composition capable of forming a molded article having a consistent appearance excellent in terms of matte property is provided. A thermoplastic resin composition comprising a vinyl graft polymer (A), a vinyl non-graft polymer (B), and a matting agent (C), wherein a mass ratio (Q1)/(Q2) of a vinyl resin component (Q1) of a chloroform soluble component (Q) of the thermoplastic resin composition, the vinyl resin component (Q1) having a weight-average molecular weight of less than 1,000,000, to a vinyl resin component (Q2) of the chloroform soluble component (Q), the vinyl resin component (Q2) having a weight-average molecular weight of 1,000,000 or more, is 99.5/0.5 to 55/45.

POLYBUTADIENE ISOPRENE GRAFT RUBBER, PROCESS FOR PREPARING THE SAME, AND VULCANISATE AND MIXTURE COMPOUND THEREOF

Preparation method of modified rubber powder

本发明涉及橡胶技术领域，具体涉及一种改性橡胶粉的制备方法，所述改性橡胶粉的制备方法，包括如下步骤：(1)将废旧橡胶粗碎，去除杂质，再粉碎，去除杂质，得到橡胶粉；(2)橡胶粉在微波作用下得到物质A；(3)将物质A加入有机溶剂中，与引发剂、改性剂混合，即得；所述引发剂为过氧化苯甲酰‑N,N‑二甲基苯胺体系与偶氮二异丁酸二甲酯的混合物。本发明具有工艺简单、生产成本低、制备得到的橡胶制品力学性能优异的优点。

PROCESS FOR THE MANUFACTURING OF GRAFT COPOLYMERS

Valeronitrile latex and preparation method thereof

本发明公开了一种戊腈胶乳及其制备方法。所述的戊腈胶乳为一种以脱蛋白天然胶乳、稀释剂、乳化剂、扩散剂、pH值缓冲剂、丙烯腈单体、第二共聚单体、偶联剂、氧化还原引发剂为原料，接枝共聚反应制得的丙烯腈/天然橡胶接枝共聚物乳液。本发明提供的共聚物胶乳具有良好的硫化性能、成膜性、以及物理强度，作为浸渍制品的原料兼顾了天然胶乳和丁腈胶乳的性能优势，进一步拓宽了天然胶乳在医用手套、防护膜材料等医疗卫生领域的应用范围。

Process for the preparation of modified diene rubber

Verfahren zur Herstellung eines modifizierten Dienkautschuks, wobei das Verfahren Umsetzen (A) eines Dienkautschuks mit (B) einer Verbindung, die ein freies Nitroxid-Radikal im Molekül hat, das bei Raumtemperatur und in Gegenwart von Sauerstoff stabil ist, (C) eines organischen Peroxids und (D) eines γ-(Meth)acryloxypropyl-Gruppe-enthaltenden Silans oder eines anderen radikalisch polymerisierbaren Monomers, das eine (Meth)acryloxy-Gruppe hat, in Gegenwart (E) einer Aminverbindung, umfassend eine Monoamin-Verbindung, die durch die allgemeine Formel NR1R2R3 [I]dargestellt wird, worin R1 eine Alkylgruppe mit 1 bis 20 Kohlenstoffatomen oder eine Arylgruppe ist und R2 und R3 jeweils unabhängig ein Wasserstoffatom, eine Alkylgruppe mit 1 bis 20 Kohlenstoffatomen oder eine Arylgruppe sind, oder eine Polyamin-Verbindung, dargestellt durch die allgemeine Formel: (R4)2N(R5N)nR6N(R4)2 [II]worin R4 ein Wasserstoffatom oder eine Alkylgruppe mit 1 bis 6 Kohlenstoffatomen ist, R5 und R6 jeweils unabhängig eine Alkylengruppe mit 1 bis 6 Kohlenstoffatomen sind und n eine ganze Zahl von 0 bis 20 ist, umfasst. A method for producing a modified diene rubber, the method comprising reacting (A) a diene rubber with (B) a compound having a nitroxide free radical in the molecule which is stable at room temperature and in the presence of oxygen, (C) an organic peroxide and (D) a γ- (meth) acryloxypropyl group-containing silane or other radical polymerizable monomer having a (meth) acryloxy group in the presence of (E) an amine compound comprising a monoamine compound represented by the general formula NR1R2R3 [I], wherein R1 is an alkyl group having 1 to 20 carbon atoms or an aryl group, and R2 and R3 are each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or an aryl group, or a polyamine compound by the general formula: (R4) 2N (R5N) n R6N (R4) 2 [II] wherein R4 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R5 and R6 each independently ängig are ...

Method for preparing graft polymer

본 발명은 반응기에 디엔계 고무질 중합체, (메트)아크릴레이트계 단량체 및 방향족 비닐계 단량체를 포함하는 제1 단량체 혼합물 및 반응형 UV 안정제를 투입하고 중합하여 복합 고무질 중합체를 제조하는 단계; 및 상기 복합 고무질 중합체에 (메트)아크릴레이트계 단량체, 방향족 비닐계 단량체 및 시안화 비닐계 단량체를 포함하는 제2 단량체 혼합물을 그라프트 중합하여 그라프트 중합체를 제조하는 단계를 포함하고, 상기 반응형 UV 안정제를 상기 디엔계 고무질 중합체, 상기 제1 단량체 혼합물 및 제2 단량체 혼합물의 합 100 중량부에 대하여 0.1 내지 2 중량부의 함량으로 투입하는 그라프트 중합체의 제조방법에 관한 것이다. The present invention comprises preparing a composite rubbery polymer by introducing a first monomer mixture and a reactive UV stabilizer including a diene-based rubbery polymer, a (meth)acrylate-based monomer and an aromatic vinyl-based monomer into a reactor and polymerizing the same; and preparing a graft polymer by graft polymerization of a second monomer mixture including a (meth)acrylate-based monomer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer on the composite rubbery polymer, It relates to a method for producing a graft polymer in which a stabilizer is added in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the sum of the diene-based rubbery polymer, the first monomer mixture, and the second monomer mixture.

COMPOUNDS CONTAINING ASSOCIATED NITROGEN-CONTAINING GROUPS

Low-VOC compositions and methods of making and using the same

Compositions having low quantities of volatile organic compounds (VOCs) and uses thereof are generally disclosed. In some embodiments, the compositions are aqueous compositions, such as aqueous suspensions, suitable for use as coating or paint compositions. In some embodiments, the compositions are aqueous compositions that include, among other components, a film-forming polymer and a coalescing aid. In some embodiments, the coalescing aids are derived from a renewable feedstock. Methods and systems for making such compositions are also disclosed. Novel coalescing aids are also disclosed.

Curable resin composition, adhesive, bound product, speaker and binding method

Natural rubber-containing thermoplastic resin composition and molded article thereof

The present invention addresses the problem of providing a natural rubber-containing thermoplastic resin composition which uses a natural rubber latex and has physical properties achieving excellent balance among impact resistance, fluidity and color tone, without requiring a complicated deproteinization process for natural rubbers. A solution of the problem is a natural rubber-containing thermoplastic resin composition which contains a graft copolymer (A) that is obtained by graft polymerizing a vinyl monomer mixture (a), which contains at least an aromatic vinyl monomer, to a rubber polymer (R) that is formed of 10-70% by mass of a natural rubber having a weight average particle diameter within the range of 0.3-1.2 ?m and 30-90% by mass of a synthetic rubber having a weight average particle diameter within the range of 0.2-0.4 ?m. This natural rubber-containing thermoplastic resin composition is characterized in that: the natural rubber particles contain natural rubber particles having particle diameters of 1.0 ?m or more in an amount of 5% by mass or more; and the inner graft rate of the rubber polymer (R) particles having particle diameters of 1.0 ?m or more is 20% or more.

System and method for producing, producing or producing ABS compositions, powders, natural rubber-based substances and / or additives

Ein Verfahren zum Produzieren von Acrylnitril-Butadien-Styrol-(ABS-)Pulver auf Naturkautschukbasis. Das Verfahren umfasst das Einführen eines Anteils Naturkautschuk, das Mischen von Divinylbenzol (DVB) mit dem Anteil Naturkautschuk, um vulkanisierten Naturkautschuk zu produzieren, das Mischen des vulkanisierten Naturkautschuks mit einer Monomerlösung, um gepfropften Naturkautschuk zu produzieren, das Mischen einer Mehrzahl gepfropfter Polybutadienkautschuke mit dem gepfropften Naturkautschuk, um einen Latex-Masterbatch zu produzieren und das Zumischen eines Koaguliermittels zu einem Anteil des Latex-Masterbatch, um ABS-Pulver auf Naturkautschukbasis zu produzieren. Durch das Mischen des DVB mit dem Anteil Naturkautschuk kann ein Zwischenschritt, der bei herkömmlichen Verfahren vor dem Polymerisationsvorgang erforderlich ist, eliminiert werden. Ein Acrylnitril-Butadien-Styrol-(ABS-)Pulver auf Naturkautschukbasis, das durch das Verfahren produziert wird, ist ebenfalls offenbart.

Use of a combination of two types of different coupling agents as coupling system (white filler-elastomer) in rubber compositions comprising an inorganic filler

The invention concerns the use of an efficient amount of a polyfunctional coupling system (A) as inorganic-elastomer filler coupling agent in rubber compositions including: (B) at least one elastomer such as natural or synthetic rubber; (C) an inorganic filler as reinforcing filler; (D) all or part of the constituents or additives normally used including in particular one (or more) vulcanizing agent(s). Said use is characterized in that: the polyfunctional coupling system consists in combining the following ingredients (A1) and (A2): (A1) is at least one coupling agent selected among the functionalized organosilicium compounds of following formula (I): [(G0)3SiO1/2]m [(G0)2SiO2/2]n [G0SiO3/2]o [SiO4/2]p [(G2)a(G1)a'(Z-CO-N=N-CO-A )SiO(3-a-a')/2]q, wherein the symbols Z, A, G0, G1, G2, a, a', m, n, o, p and q are such as defined in Claim 1; (A2) is at least one coupling agent selected among either polysulphurated 'symmetric' silanes, or sulphurated 'asymmetric' silanes; said polyfunctional coupling system (A) is incorporated in isoprene elastomer-based rubber compositions.

Patent FR2304628B3

Curable epoxy resin composition

A curable epoxy resin composition containing a modified polymer (A) modified with a TEMPO derivative having a nitroxide radical with an epoxy reactive group in the molecule thereof, an epoxy resin (B) and an epoxy curing agent (C).

Guayule resin multipolymer

A method for preparing multipolymers of guayule resin with methacrylic, acrylic, vinyl and styrenic monomers and the resultant compositions are disclosed. As a result of the multipolymerization, the physical and chemical properties of the resin are improved. The primary advantage of multipolymerization over mixtures of resin with homopolymers is that it leads to a homogeneous material, the properties of which can be regulated by adjusting the ratio of the concentration of monomers in the feed. One attractive feature is the production of low viscosity resins with reactive groups that can compete directly with oligomers and macro-monomers used in solventless inks, coatings and adhesives. The low cost of the resin, a byproduct from the extraction of hypoallergenic rubber from guayule and other plants bearing rubber or rubber- like hydrocarbons provides for hybrid low molecular weight copolymers that are cost competitive with state-of-the-art oligomers.

Herstellung von schlagfesten vinylaromatischen polymer aus einem kautschuk mit einer gruppe zur erzeugung eines freien, stabilen radikal

一种增韧剂、制备方法及其在pvc材料中的应用

本发明公开了一种增韧剂、制备方法及其在PVC材料中的应用，属于高分子材料技术领域。增韧剂的制备方法包括如下步骤：将弹性体、引发剂、交联剂在交联单体中溶胀；将步骤S1溶胀后的产物共聚反应，即得所述增韧剂；交联单体为甲基丙烯酸甲酯、丙烯酸甲酯、丙烯酸乙酯、甲基丙烯酸乙酯、丙烯酸丁酯或苯乙烯中的一种或几种；弹性体和交联单体的重量比为(0.3～3)：1；溶胀时间为1‑24h，溶胀温度为25‑80℃；共聚反应温度为60‑120℃，共聚时间为20‑100min，剪切速率为10‑100rpm。本发明所制备的增韧剂对PVC硬质管材有显著的增韧作用，而且同时对PVC的拉伸强度几乎不会产生显著的负面影响。

一种橡胶型锂电池用压敏胶胶带

本发明属于锂电池封装技术领域，公开了一种橡胶型锂电池用压敏胶胶带，包括PET基材层、离型层和压敏胶层，所述压敏胶胶带的制备方法包括以下步骤：S1、将PET基材一侧表面进行电晕处理形成粗糙的上胶面；S2、将离型剂涂布在PET基材的光滑面，烘烤固化得到离型层；S3、将压敏胶均匀地涂布于PET基材的上胶面，烘烤固化得到胶粘层；S4、通过设备冷却后收卷、裁切后得到所述压敏胶胶带成品。本发明压敏胶胶带离型层具有良好表面性能、脱模性能及阻隔性能，胶粘层以天然橡胶和丁苯橡胶共混物为主体材料，并与极性单体交联改性后，提高压敏胶的初粘性和剥离强度，同时橡胶型压敏胶受到锂电池电解液影响较小，在电解液中仍然保持优异的性能。

一种防水型吸水膨胀橡胶的制备方法

本发明提供了一种防水型吸水膨胀橡胶的制备方法，步骤如下：将丙烯酰胺氢氧化钾溶液水解，加甲壳素黄原酸酯、去离子水、过硫酸钾溶液和N,N’‑亚甲基双丙烯酰胺溶液加热反应；加入含有烷基酚聚氧乙烯醚的环己烷溶液中，升温反应；过滤烘干；在低温等离子处理装置中处理得多孔吸水微球；将天然胶乳、蔗糖脂肪酸酯、秸秆纤维素、纳米硅溶胶和亚硫酸氢钠搅拌；加丙烯酸钠溶液、过硫酸钾溶液和N,N’‑亚甲基双丙烯酰胺溶液反应；烘干；转移至开炼机中，包辊后依次加硬脂酸、氧化锌、促进剂DM、防老剂RD、补强剂、多孔吸水微球、硫磺，混炼均匀；硫化即得。本法所制备的防水型吸水膨胀橡胶具有非常好的吸水性能，重复利用性好，力学性能佳。

一种高力学性能、高粘接性能、可回收的橡胶

本发明公开了一种羧基化橡胶粉及高力学性能、高粘接性能、可回收的橡胶，其中橡胶是由下述重量份的原料制备而成：羧基化橡胶粉5‑100份，环氧化天然橡胶50‑200份，填料5‑100份，交联剂0.5‑10份，催化剂0.5‑10份；所述羧基化橡胶粉是橡胶粉加含自由基引发剂的有机溶剂溶胀，再加入到含羧基烯烃单体的水溶液中反应，反应完全后干燥得到的粉末。本发明用经羧基化的废旧橡胶制备得到的橡胶，由于交联网络的拓扑可转变，表现出了可回收特性和强粘接性能，具有多种应用前景，实现了废旧橡胶粉的高值化应用。

一种废胶粉的甲基丙烯酸甲酯聚合接枝改性工艺

本发明涉及一种废胶粉的甲基丙烯酸甲酯聚合接枝改性工艺，具体步骤包括：将废轮胎胶粉分散在水中，加入一定量的引发剂和表面改性剂，恒温搅拌1‑12小时，温度为50‑90℃，引发剂用量占胶粉质量的1.7％‑10％，表面改性剂用量为胶粉质量的1％‑300％。将接枝胶粉作为沥青改性剂通过湿法改性工艺制备胶粉改性沥青，以调控改性沥青性能。该方法操作简单，成本低廉，并且能够有效调控胶粉改性沥青的针入度、延度、软化点等主要性能。

镀敷用树脂组合物与镀敷成形品

本发明提供一种耐冲击性和流动性优异，并且镀敷密合强度、镀敷析出性及冷热循环性的平衡优异的镀敷用树脂组合物及镀敷成形品。本发明提供一种一种镀敷用树脂组合物，其含有聚碳酸酯树脂(A)、接枝共聚物(B)及共聚物(C)，并且满足下述条件(1)～(5)：(1)聚碳酸酯树脂(A)相对于(A)、(B)、(C)总计100质量％的含量为20～60质量％；(2)接枝共聚物(B)是橡胶聚合物与包含芳香族乙烯类单体的单体组分进行接枝聚合而形成的接枝共聚物；(3)共聚物(C)是包含芳香族乙烯类单体和氰化乙烯类单体的单体组分进行聚合而形成的共聚物；(4)橡胶聚合物相对于树脂组合物的含量为7～20质量％；(5)低聚物组分相对于树脂组合物的含量小于1质量％。

Reifen und vernetzbare elastomere zusammensetzung