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1. 发明授权

US09765172B2 Process for preparing polyoxymethylene 有权
公开(公告)号：US09765172B2
公开(公告)日：2017-09-19
申请号：US14894158
申请日：2014-05-26
申请人： BASF SE
发明人： Laurence Pottie , Juergen Demeter , Marie-Claire Hermant
IPC分类号： C08G2/08 , C08G65/00 , C08G59/02 , C08G2/10 , C08G2/06 , C08G2/18 , C08G2/22 , C08G4/00 , C08L59/04
CPC分类号： C08G2/08 , C08G2/06 , C08G2/10 , C08G2/18 , C08G2/22 , C08G4/00 , C08G59/02 , C08G65/00 , C08L59/04
摘要： The patent application relates to a process for preparing polyoxymethylene by polymerization of a reaction mixture (RG) which comprises at least one formaldehyde source and at least one initiator mixture (IG), wherein the initiator mixture (IG) comprises at least one polymerization initiator and at least one solvent of the general formula (I) R1—O—[—R3—O—]m—R2 (I), where m is 1, 2, 3 or 4; R1 and R2 are each, independently of one another, C3-C6-alkyl; R3 is C1-C5-alkylene.

2. 发明授权

US09217058B2 Acetal metathesis polymerization 有权
标题翻译：乙缩醛复分解聚合
公开(公告)号：US09217058B2
公开(公告)日：2015-12-22
申请号：US14034839
申请日：2013-09-24
申请人： UNVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
发明人： Stephen A. Miller , Alexander G. Pemba
IPC分类号： C08G65/34 , C08G65/00 , C08G2/06 , C08G2/18 , C08G4/00 , C08L59/04
CPC分类号： C08G65/00 , C08G2/06 , C08G2/18 , C08G4/00 , C08L59/04
摘要： A method of preparing a polyacetal comprising polymerization of a mixture comprising a plurality of at least one bis-acetal monomer in the presence of an acid catalyst that promotes the metathesis of the acetal units. The bis-acetal can be formed from an acid catalyzed exchange between a mono-acetal monomer with a diol. The formation of the bis-acetal and the polyacetal can be carried out simultaneously. The diol can be isolated from a biorenewable source and the ultimate polyacetal is a degradable or biodegradable polymer.
摘要翻译：一种制备聚缩醛的方法，包括在促进缩醛单元的复分解的酸催化剂存在下包含多个至少一种双缩醛单体的混合物的聚合。双缩醛可以由单缩醛单体与二醇之间的酸催化交换形成。双缩醛和聚缩醛的形成可以同时进行。二醇可以从生物可再生源分离，最终的聚缩醛是可降解或可生物降解的聚合物。

3. 发明授权

US08119822B2 Ionic liquids in the preparation of POMs 失效
标题翻译：离子液体在制备POM时
公开(公告)号：US08119822B2
公开(公告)日：2012-02-21
申请号：US12440833
申请日：2007-09-07
申请人： Karthikeyan Sharavanan , Kathrin Wissel
发明人： Karthikeyan Sharavanan , Kathrin Wissel
IPC分类号： C08G2/18 , C08L59/04 , C08K3/26
CPC分类号： C08G2/08 , C08G2/06 , C08G2/10
摘要： Process for preparing polyoxymethylenes by polymerization of the monomers a) in the presence of cationically active initiators b) and, if appropriate in the presence of regulators c) and subsequent deactivation d) and discharge from the reactor, wherein at least one ionic liquid is used as initiator b).
摘要翻译：通过单体a）在阳离子活性引发剂存在下制备聚甲醛的方法b）和如果适当时在调节剂c）和随后的失活d）存在下，并且从反应器中排出，其中使用至少一种离子液体作为引发剂b）。

4. 发明申请

US20050131198A1 Polyoxymethylene-made stretched product and production method thereof 审中-公开
标题翻译：聚甲醛拉伸产品及其制备方法
公开(公告)号：US20050131198A1
公开(公告)日：2005-06-16
申请号：US10733774
申请日：2003-12-12
申请人： Hidetoshi Okawa
发明人： Hidetoshi Okawa
IPC分类号： B29C55/00 , B29K59/00 , C08G2/18 , C08G2/20 , C08G2/24 , C08L59/04 , B65D1/00 , C08G16/00
CPC分类号： C08G2/20 , C08G2/18 , C08G2/24 , C08L59/04 , Y10T428/1352
摘要： A stretched product comprising a polyoxymethylene copolymer and having high strength and high elastic modulas is provided. A polyoxymethylene copolymer having a melt index (190° C., load: 2160 g) of from 0.3 to 20 g/10 min and containing, in the polymer chain mainly comprising an oxymethylene repeating unit, a specific oxyalkylene unit in an amount of from 0.5 to 10 mol per 100 mol of the oxymethylene unit is melt-extruded to obtain a rod-like or hollow molded article and then the molded article is stretched under heating, thereby obtaining a stretched product having a sectional area of from 0.003 to 700 mm2.
摘要翻译：提供包含聚甲醛共聚物并具有高强度和高弹性模量的拉伸产品。熔融指数（190℃，负载：2160g）为0.3〜20g / 10分钟的聚甲醛共聚物，在主要由甲醛重复单元构成的聚合物链中含有特定氧化烯单元，熔融挤出0.5〜10摩尔/ 100摩尔的甲醛单元，得到棒状或中空的成型体，然后在加热下拉伸成型品，得到截面积为0.003〜700mm的拉伸制品 ^{2 。}

5. 发明授权

US5844059A Process for preparing polyacetal copolymer 失效
标题翻译：制备聚缩醛共聚物的方法
公开(公告)号：US5844059A
公开(公告)日：1998-12-01
申请号：US791469
申请日：1997-01-27
申请人： Kaoru Yamamoto , Hiroyuki Kanai
发明人： Kaoru Yamamoto , Hiroyuki Kanai
IPC分类号： C08G2/06 , C08G2/10 , C08G2/18 , C08G2/28 , C08G6/00 , C08G2/00
CPC分类号： C08G2/18 , C08G2/06 , C08G2/10 , C08G2/28
摘要： To prepare a thermally very stable polyacetal copolymer containing a very small amount of unstable parts in a high yield according to a simple process wherein an isopolyacid or an acid salt thereof is used as the polymerization catalyst in the copolymerization of trioxane as the principal monomer with a comonomer copolymerizable therewith, and wherein deactivation of the catalyst can be effected simply without fail through contact with a basic gas after polymerization without the necessity for any washing step. In the preparation of a polyacetal copolymer by the copolymerization of trioxane as the principal monomer with a cyclic ether or cyclic formal having at least one carbon--carbon bond as a comonomer, the copolymerization is effected using an isopolyacid or an acid salt thereof as the polymerization catalyst, followed by contact with a basic gas as a deactivator to deactivate the catalyst, and subsequent heat-melting treatment of the resulting crude polymer intact without washing thereof.
摘要翻译：为了制备含有非常少量的不稳定部分的热非常稳定的聚缩醛共聚物，根据简单的方法，其中在三恶烷作为主要单体的共聚合中使用异多酸或其酸盐作为聚合催化剂，可与其共聚的共聚单体，并且其中催化剂的失活可以通过在聚合后与碱性气体接触而简单地进行，而不需要任何洗涤步骤。在通过三恶烷作为主要单体与具有至少一个碳 - 碳键作为共聚单体的环状醚或环状缩甲醛进行共聚制备聚缩醛共聚物时，使用等多酸或其酸性盐作为聚合反应进行共聚催化剂，然后与作为失活剂的碱性气体接触以使催化剂失活，随后对所得粗聚合物进行热熔融处理而不洗涤。

6. 发明授权

US4900783A Acetal copolymers with backbone double bonds and graft copolymers thereof 失效
标题翻译：具有骨架双键的乙缩醛共聚物及其接枝共聚物
公开(公告)号：US4900783A
公开(公告)日：1990-02-13
申请号：US181047
申请日：1988-04-13
申请人： Nan-Loh Yang , Andrew Auerbach , James L. Paul , Rose Pesce , Shian S. Wang
发明人： Nan-Loh Yang , Andrew Auerbach , James L. Paul , Rose Pesce , Shian S. Wang
IPC分类号： C08G65/16 , C07D321/04 , C08F283/06 , C08G2/10 , C08G2/18 , C08G4/00 , C08G65/06 , C08G65/26
CPC分类号： C08G4/00 , C07D321/04 , C08G2/18
摘要： Acetal copolymers of trioxane and 1,3-dioxep-5-ene having a high degree of crystallinity and specific mole percent incorporations of 1,3-dioxep-5-ene are synthesized.The invention also provides a process for producing highly crystalline acetal copolymers by copolymerizing triozane and 1,3-dioxep-5-ene and precipitating the copolymer product from solution.The copolymers show much improved stability against halogen degradation.

7. 发明授权

US4727132A Method of continuous manufacturing of polymers or copolymers of trioxane 失效
标题翻译：连续制造三恶烷的聚合物或共聚物的方法
公开(公告)号：US4727132A
公开(公告)日：1988-02-23
申请号：US861031
申请日：1986-05-08
申请人： Tsuyoshi Minamisawa , Shuichi Chino , Noboru Goto , Masaaki Nakamura
发明人： Tsuyoshi Minamisawa , Shuichi Chino , Noboru Goto , Masaaki Nakamura
IPC分类号： B01J19/20 , C08G2/00 , C08G2/10 , C08G2/18
CPC分类号： C08G2/10 , B01J19/20 , C08G2/18
摘要： A trioxane polymer is continuously produced with a continuous stirring-mixing apparatus. The apparatus includes two mutually parallel rotational shafts, a large number of paddles mounted on each rotational shaft and a barrel having an inside wall surface along the circular surface traced by the respective paddles, as they rotate. Thus, the barrel has a cross-section in the shape of two circles concentric with the two rotational shafts, which overlap each other. The apparatus is also provided with a temperature controlling jacket. In the operation of the apparatus, a material mixture of trioxane, catalyzer, other copolymerizable comonomers, as the case may be, and additives, is continuously fed in through a material supply port located at one end thereof, then, the material mixture is subjected to polymerization or copolymerization reaction, while being stirred by turning the aforementioned rotational shafts in an opposite direction to each other and, thereafter, the polymers or copolymers of trioxane are taken out as fine granules through a discharge port located at the other end thereof. The method is characterized in that at least one set of paddles of a sectional shape which meets a requirement that when a pair of paddles facing each other are turned in different directions around their rotational axes, the clearance between them shall be kept always as narrow as less than 3/100 of the barrel ID, are mounted on each shaft, adjoining each other, and the different direction turning is made in a state such that the clearance between the farthest part from the rotational axis of said paddle and the inside wall of the barrel are always maintained as narrow as less than 3/100 of the barrel ID.
摘要翻译：用连续搅拌混合装置连续生产三恶烷聚合物。该装置包括两个相互平行的旋转轴，安装在每个旋转轴上的大量叶片和当旋转时由相应叶片沿着圆形表面的内壁表面的筒体。因此，筒体具有与两个相互重叠的两个旋转轴同心的两个圆形的横截面。该设备还设置有温度控制护套。在设备的操作中，三恶烷，催化剂，其他可共聚的共聚单体的材料混合物（视情况而定）和添加剂通过位于其一端的材料供给口连续进料，然后将材料混合物进行聚合或共聚反应，同时通过将上述旋转轴彼此相反的方向转动而进行搅拌，此后，通过位于其另一端的排出口将三恶烷的聚合物或共聚物作为细颗粒取出。该方法的特征在于，至少一组截面形状的桨叶满足要求当一对彼此相对的桨叶围绕其旋转轴线在不同方向转动时，它们之间的间隙应保持总是如小于3/100的桶ID，安装在彼此相邻的每个轴上，并且不同的方向转动形成为使得最远部分与所述桨叶的旋转轴线之间的间隙和枪管始终保持在小于桶ID的3/100以下的窄度。

8. 发明授权

US4587033A Polymeric acetal carboxylate compositions 失效
标题翻译：聚合缩醛羧酸盐组合物
公开(公告)号：US4587033A
公开(公告)日：1986-05-06
申请号：US627262
申请日：1984-07-02
申请人： David R. Dyroff , Yueting Chou
发明人： David R. Dyroff , Yueting Chou
IPC分类号： C08G2/14 , C08G2/18 , C08G2/28 , C11D7/16 , C08G2/30
CPC分类号： C08G2/14 , C08G2/18 , C08G2/28
摘要： Solid phase compositions having improved storage stability comprising polymeric acetal carboxylates in intimate admixture with a basic additive and a method of producing such admixtures are disclosed. The compositions are useful as builders in detergent formulations.
摘要翻译：公开了具有改进的储存稳定性的固相组合物，包括与碱性添加剂紧密混合的聚合缩醛羧酸盐和制备这种混合物的方法。组合物可用作洗涤剂配方中的助洗剂。

9. 发明授权

US4399272A Process for producing polyacetal copolymers 失效
标题翻译：生产聚缩醛共聚物的方法
公开(公告)号：US4399272A
公开(公告)日：1983-08-16
申请号：US204085
申请日：1980-11-04
申请人： Hisaya Sakurai , Minoru Hamada , Kazuhiko Matsuzaki , Muneaki Aminaka
发明人： Hisaya Sakurai , Minoru Hamada , Kazuhiko Matsuzaki , Muneaki Aminaka
IPC分类号： C08G2/22 , C08G2/24 , C08G2/38 , C08G4/00 , C08G2/18
CPC分类号： C08G2/38 , C08G2/22 , C08G2/24 , C08G4/00
摘要： A process for producing a polyacetal copolymer, which comprises copolymerizing formaldehyde and a compound selected from the group consisting of alkylene oxides, poly(alkylene oxides), cyclic formals and poly (cyclic formals) in the presence of a Lewis acid and an anionic polymerization catalyst with the exception of metal chelate compounds.
摘要翻译：一种制备聚缩醛共聚物的方法，其包括在路易斯酸和阴离子聚合催化剂存在下使甲醛和选自环氧烷烃，聚（环氧烷烃），环状缩醛和聚（环状缩甲醛）的化合物共聚合金属螯合物除外。

10. 发明授权

US4380620A Process for preparing polyoxymethylenes 失效
标题翻译：聚甲醛制备方法
公开(公告)号：US4380620A
公开(公告)日：1983-04-19
申请号：US293213
申请日：1981-08-12
申请人： Kazuhiko Matsuzaki , Minoru Hamada , Hisaya Sakurai
发明人： Kazuhiko Matsuzaki , Minoru Hamada , Hisaya Sakurai
IPC分类号： C08G2/04 , C08G2/08 , C08G2/18 , C08G65/26
CPC分类号： C08G65/2603 , C08G2/04 , C08G2/08 , C08G2/18
摘要： In a process for preparing polyoxymethylenes by polymerizing formaldehyde in the presence of an anionic polymerization catalyst, the use of a polyhydric alcohol having at least three alcoholic hydroxyl groups in the molecule permits the preparation of polyoxymethylenes which have desired molecular weights along with improved melt fluidity and which are excellent in processability.
摘要翻译： PCT No.PCT / JP80 / 00307 Sec。 371日期1981年8月12日 102（e）日期1981年8月12日PCT提交1980年12月16日PCT公布。第WO81 / 01712号公报日期：1981年6月25日。在阴离子聚合催化剂存在下通过聚合甲醛制备聚氧化甲烯的方法中，在分子中使用具有至少三个醇羟基的多元醇允许制备具有所需分子重量以及改善的熔体流动性，并且加工性能优异。

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