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公开(公告)号：US4452601A
公开(公告)日：1984-06-05
申请号：US360012
申请日：1982-03-19
摘要： An improved process for the thermal stabilization of an acrylic fibrous material or film is provided. A tetrasubstituted phosphonium salt which is capable of promoting the thermal stabilization is incorporated in a solution of the acrylic polymer prior to extruding the same to form a fibrous material or film, and the acrylic fibrous material or film having the tetrasubstituted phosphonium salt incorporated therein is heated in an oxygen-containing atmosphere until a thermally stabilized fibrous material or film is formed which is black in appearance, non-burning when subjected to an ordinary match flame and which is capable of undergoing carbonization. The presence of the tetrasubstituted phosphonium salt has been found to cause the thermal stabilization reaction to proceed at an accelerated rate.
摘要翻译： 提供了一种用于丙烯酸纤维材料或膜的热稳定化的改进方法。 能够促进热稳定化的四取代的鏻盐在挤出之前加入到丙烯酸类聚合物的溶液中以形成纤维材料或膜，并且加入其中掺入四取代鏻盐的丙烯酸纤维材料或膜被加热 在含氧气氛中直到形成外观为黑色的热稳定的纤维材料或膜，当经受普通火焰并且能够进行碳化时不燃烧。 发现四取代鏻盐的存在导致热稳定化反应以加速速率进行。
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12.发明授权Ultraviolet photoinitiator systems utilizing aromatic sulfides and triplet state energizers 失效使用芳香族硫化物和三线态激发剂的紫外线光引发剂体系
公开(公告)号：US4207156A
公开(公告)日：1980-06-10
申请号：US880673
申请日：1978-02-23
CPC分类号： C08F2/50 , Y10S430/106 , Y10S430/114 , Y10S522/904 , Y10T428/31692 , Y10T428/31699
摘要： The preparation of rapidly curable ultraviolet coating compositions utilizing, in addition to standard photoinitiators, an aromatic sulfide is disclosed. Utilized in conjunction with the aromatic sulfide may be a triplet state sensitizer, such as a fused ring aromatic compound.
摘要翻译： 公开了除了标准光引发剂之外还使用芳族硫化物的快速固化的紫外线涂料组合物的制备。 与芳族硫化物结合使用可以是三重状态敏化剂，例如稠环芳族化合物。
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公开(公告)号：US4042476A
公开(公告)日：1977-08-16
申请号：US550383
申请日：1975-02-18
IPC分类号： C08F291/18 , C09D4/00 , C08F8/00 , B01J1/10 , C08L7/00
CPC分类号： C08F291/18 , C08K3/22 , C09D4/00
摘要： There is disclosed a process for utilizing titanium dioxide pigments in ultraviolet coating compositions. Basically, the process involves forming a vinyl aqueous emulsion in the presence of titanium dioxide pigments; precipitating and drying the titanium dioxide-polymeric emulsion and adding the dried precipitate as pigment to an ultraviolet curable coating composition.
摘要翻译： 公开了一种在紫外线涂料组合物中使用二氧化钛颜料的方法。 基本上，该方法包括在二氧化钛颜料存在下形成乙烯基水乳液; 沉淀并干燥二氧化钛聚合物乳液，并将干燥的沉淀物作为颜料加入紫外线固化涂料组合物中。
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14.发明授权Method of applying high adhesion ultraviolet curable coatings and coated articles 失效应用高粘附性紫外线固化涂层和涂层制品的方法
公开(公告)号：US4016334A
公开(公告)日：1977-04-05
申请号：US550337
申请日：1975-02-18
CPC分类号： B05D3/029 , B05D7/546 , B05D3/02 , B05D3/0263 , Y10T428/31692 , Y10T428/31699
摘要： An improved process for applying an ultraviolet curable coating to tin free steel is disclosed in this invention, whereby prior to applying the main ultraviolet curable composition, a thin pre-coating of a monomer containing at least one ultraviolet polymerizable site of alpha beta ethylenic unsaturation and at least two carbonyl groups is first applied to the surface to be coated, to a thickness of at least about 10.sup..sup.-3 microns, and heated at temperatures ranging from 50.degree. to 125.degree. C. for 5-25 minutes. Following this step, an ultraviolet curable coating composition is applied and cured.
摘要翻译： 在本发明中公开了一种将无紫外线固化涂层施加到无锡钢的改进方法，其中在施加主紫外线固化性组合物之前，将包含至少一个αβ烯属不饱和度的紫外线可聚合位点的单体的薄预涂层和 首先将至少两个羰基施加到待涂覆的表面上，至少约10 -3微米的厚度，并在50至125℃的温度下加热5-25分钟。 在该步骤之后，施加和固化紫外线固化涂料组合物。
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公开(公告)号：US5041505A
公开(公告)日：1991-08-20
申请号：US406641
申请日：1989-09-13
摘要： Copolymers of 1,3-dioxolane and 1,3-dioxepane in the form of non-crystalline high molecular weight elastomers having low glass transition temperatures (Tg) are disclosed. Such copolymers are formed by polymerizing from about 40 to about 60 mol percent of 1,3-dioxolane and correspondingly from about 60 to about 40 mol percent of 1,3-dioxepane under substantially anhydrous conditions in the presence of a cationic polymerization catalyst, e.g., a strong Bronsted acid such as trifluoromethanesulfonic acid. Blends of such non-crystalline copolymers with crystalline oxymethylene polymers are also disclosed.
摘要翻译： 公开了具有低玻璃化转变温度（Tg）的非结晶高分子量弹性体形式的1,3-二氧戊环和1,3-二氧杂环庚烷的共聚物。 这种共聚物通过在阳离子聚合催化剂的存在下，在基本上无水的条件下聚合约40至约60mol％的1,3-二氧戊环和相应地约60至约40mol％的1,3-二氧杂环庚烷形成，例如 ，强烈的布朗斯台德酸，如三氟甲磺酸。 还公开了这种非结晶共聚物与结晶甲醛聚合物的共混物。
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16.发明授权
公开(公告)号：US4975520A
公开(公告)日：1990-12-04
申请号：US325424
申请日：1989-03-20
申请人： George L. Collins
发明人： George L. Collins
CPC分类号： C08G16/0256
摘要： A process for producing oxymethylene copolymers and terpolymers is disclosed which involves the non-linear addition of gaseous formaldehyde to a cyclic ether having at least two adjacent carbon atoms (1) and, in the case of a terpolymer, to a mixture of at least one (1) and one monoethylenically unsaturated aliphatic diol formal having at least four carbon atoms in its main chain (2), or to a mixture of (1) with a (2), in the presence of a polymerization initiator at a rate controlled so as to conform to a rate determined by kinetic equations that describe the rate of decomposition of trioxane to formaldehyde during conventional copolymerization of trioxane with a cyclic ether. The process and kinetic equations of the invention are applicable to batch reactions, single stream continuous reactions and dual stream continuous reactions.
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公开(公告)号：US4954400A
公开(公告)日：1990-09-04
申请号：US255569
申请日：1988-10-11
IPC分类号： B32B15/01 , B32B7/12 , B32B17/06 , C08G2/10 , C08G2/18 , C08J5/12 , C09J159/00 , C09J163/00
CPC分类号： C09J159/00 , Y10T428/31515 , Y10T428/3163 , Y10T428/31692 , Y10T428/31895
摘要： There are provided new articles comprising elements having surfaces bonded together with a bonding resin which is an elastomeric copolymer of about 15 to 45 mol %, preferably about 25 to 35 mol % trioxane, about 55 to 85 mol %, preferably about 65 to 75 mol % of 1,3-dioxolane, said mol percents based on the total of trioxane and 1,3-dioxolane, and about 0.005 to 0.15 wt. %, preferably about 0.05 to 0.12 wt. % of 1,4-butanediol diglycidyl ether or butadiene diepoxide as a bifunctional monomer, based on the total weight of copolymer. Preferably, at least one of said surfaces, and more preferably at least two of said surfaces bonded to each other are of a crystalline acetal polymer comprising at least 85 mol % of polymerized oxymethylene units.
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公开(公告)号：US4898925A
公开(公告)日：1990-02-06
申请号：US243381
申请日：1988-09-12
申请人： George L. Collins , Kurt F. Wissbrun , Hongkyu Kim
发明人： George L. Collins , Kurt F. Wissbrun , Hongkyu Kim
CPC分类号： C08G2/18
摘要： There are provided new elastomeric copolymers of about 15 to 45 mol %, preferably about 25 to 35 mol % trioxane, about 55 to 85 mol %, preferably about 65 to 75 mol % of 1,3-dioxolane, said mol percents based on the total of trioxane and 1,3-dioxolane, and about 0.005 to 0.15 wt. %, preferably about 0.05 to 0.12 wt. % of 1,4-butanediol diglycidyl ether or butadiene diepoxide as a bifunctional monomer, based on the total weight of copolymer. The elastomeric copolymers may be prepared by mixing said monomers in a substantially dry state and under an inert atmosphere with a cationic polymerization catalyst, e.g, p-nitrobenzenediazonium tetrafluoroborate. The elastomeric copolymers have a strong interaction with moldable, crystalline acetal polymers comprising at least 85 mol % of polymerized oxymethylene units and may be used as a blending agent with such crystalline acetal polymers or as a bonding agent to improve the adhesiveness of the crystalline acetal polymer to other materials.
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公开(公告)号：US4868329A
公开(公告)日：1989-09-19
申请号：US168565
申请日：1988-03-07
CPC分类号： C07C67/08
摘要： The instant invention involves a process for preparing carboxylic acid esters which comprises coreacting a carboxylic acid and an aliphatic mono or polyol by maintaining one of the reactants in a reactor at elevated temperatures and adding the other reactant to the reactor over a period of time. By employing this process esterification times are significantly reduced.
摘要翻译： 本发明涉及一种制备羧酸酯的方法，该方法包括通过将反应物中的一种在升高的温度下保持在反应器中并在一段时间内将其它反应物加入到反应器中来使羧酸和脂族单或多元醇结合起来。 通过使用该方法，酯化时间显着降低。
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公开(公告)号：US5043118A
公开(公告)日：1991-08-27
申请号：US452166
申请日：1989-12-18
IPC分类号： C04B35/634 , C04B35/80 , C08K3/00 , C08K9/08
CPC分类号： C04B35/6342 , C04B35/634 , C04B35/80 , C08K3/0033 , C08K9/08 , Y10T428/2918 , Y10T428/2933
摘要： An injection moldable ceramic composition is prepared by mixing a sinterable powder, a polyacetal binding agent and silicon carbide whiskers which have been coated with a polyacetal resin.
摘要翻译： 通过将可熔融粉末，聚缩醛粘合剂和已经被聚缩醛树脂涂覆的碳化硅晶须混合来制备注射成型陶瓷组合物。
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