公开(公告)号：WO1996006881A2

公开(公告)日：1996-03-07

申请号：PCT/US1995011006

申请日：1995-08-29

Applicant: DTM CORPORATION

Inventor： DTM CORPORATION ,  DICKENS, Elmer, Douglas, Jr. ,  LEE, Biing, Lin ,  TAYLOR, Glenn, ALfred ,  MAGISTRO, Angelo, Joseph ,  NG, Hendra ,  McALEA, Kevin, P. ,  FORDERHASE, Paul, F.

IPC: C08J03/12

CPC classification number: C08J3/12 ,  B29C41/003 ,  B29C64/153 ,  B29C67/04 ,  B29C2035/0838 ,  B29K2023/00 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2059/00 ,  B29K2067/006 ,  B29K2077/00 ,  B29K2079/00 ,  B29K2995/0094 ,  B33Y10/00 ,  B33Y70/00 ,  C08J9/24 ,  Y10S521/919 ,  Y10S525/902 ,  Y10T428/249958 ,  Y10T428/249986 ,  Y10T428/252

Abstract: A laser-sinterable powder product has been prepared having unique properties which allow the powder to be sintered in a selective laser sintering machine to form a sintered part which is near-fully dense. For most purposes, the sintered part is indistinguishable from another part having the same dimensions made by isotropically molding the powder. In addition to being freely flowable at a temperature near its softening temperature, a useful powder is disclosed that has a two-tier distribution in which substantially no primary particles have an average diameter greater than 180 mu m, provided further that the number average ratio of particles smaller than 53 mu m is greater than 80 %, the remaining larger particles being in the size range from 53 mu m to 180 mu m. A powder with slow recrystallization rates, as evidenced by non-overlapping endothermic and exothermic peaks in their differential scanning calorimetry characteristics for scan rates of on the order of 10 DEG C to 20 DEG C per minute, will also result in sintered parts that are near-fully dense, with minimal dimensional distortion.

Abstract translation: 已经制备了具有独特性质的激光可烧结粉末产品，其允许粉末在选择性激光烧结机中烧结以形成接近完全致密的烧结部分。 对于大多数目的，烧结部分与通过各向同性地成型粉末制成的具有相同尺寸的另一部件是不可区分的。 除了在接近其软化温度的温度下可自由流动外，还公开了一种有用的粉末，其具有两层分布，其中基本上没有一次颗粒的平均直径大于180μm，条件是， 小于53μm的颗粒大于80％，剩余的较大颗粒的尺寸范围为53μm至180μm。 具有缓慢重结晶速率的粉末，其扫描速率在每分钟10℃到20℃的差示扫描量热法特征中不重叠的吸热和放热峰所证明的也将导致接近的烧结部件 非常密集，尺寸变形最小。

公开(公告)号：WO1996000748A1

公开(公告)日：1996-01-11

申请号：PCT/US1995008004

申请日：1995-06-22

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  SCHULZ, Gary, J.

IPC: C08J03/12

CPC classification number: C08J3/12 ,  C08B11/20 ,  C08J2301/28

Abstract: This invention is a process for comminuting a cellulose ether which comprises extruding a hydrated cellulose ether through a plurality of orifices, each orifice having a cross-sectional area of from 7.5 x 10 m to 1 x 10 m , to form an elongated extrudate, and then cutting the elongated extrudate to desired lenght. The high density cellulose ether product is typically cold water dispersible, non-dusty, and free flowing.

Abstract translation: 本发明是粉碎纤维素醚的方法，其包括通过多个孔挤出水合纤维素醚，每个孔的横截面积为7.5×10 -9 m -2， 6> m 2，以形成细长的挤出物，然后将细长的挤出物切割成所需的长度。 高密度纤维素醚产品通常是冷水可分散的，无尘的和自由流动的。

公开(公告)号：WO1996000747A1

公开(公告)日：1996-01-11

申请号：PCT/US1995007097

申请日：1995-06-05

Applicant: NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION

Inventor： NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION ,  PULETTI, Paul ,  HATFIELD, Stephen

IPC: C08J03/12

CPC classification number: B01J2/30 ,  B01J2/003 ,  C08J3/124

Abstract: Hot melt adhesive masses are provided with a tackless surface by a process which comprises the steps of: a) extruding the hot melt adhesive through an appropriate die orifice; b) spraying the surface of the extruded adhesive with a molten film forming low molecular weight polymer or formulated polymeric material, the material being selected so that it will not appreciably detract from the properties of the adhesive composition when remelted therewith; c) heating the surface of the coated adhesive at a temperature and for a period of time sufficient to remelt the film forming polymer so as to form a continuous coating thereof yet insufficient to appreciably melt the adhesive; and d) cooling the thus coated adhesive mass to a temperature suitable for handling.

Abstract translation: 通过包括以下步骤的方法，将热熔粘合剂块设置成无粘性表面：a）将热熔粘合剂挤出通过适当的模口; b）用形成低分子量聚合物或配制的聚合物材料的熔融膜喷涂挤出的粘合剂的表面，该材料被选择成使得当与其重熔时不会明显地降低粘合剂组合物的性能; c）在足以使成膜聚合物重熔的温度和时间段下加热涂覆的粘合剂的表面，以形成连续的涂层，但不足以明显地熔化粘合剂; 和d）将如此涂覆的粘合剂物料冷却至适于处理的温度。

公开(公告)号：WO1994020566A1

公开(公告)日：1994-09-15

申请号：PCT/US1994001120

申请日：1994-01-31

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  CALLAHAN, Joseph, P., Jr. ,  WEIGEL, Mark, D. ,  ENANOZA, Rudyard, M.

IPC: C08J03/12

CPC classification number: C09J151/00 ,  C08F291/00 ,  C08J3/124 ,  C09J7/38 ,  Y10T428/24826 ,  Y10T428/254 ,  Y10T428/2998 ,  C08F2/22

Abstract: Adhesive beads comprise a core comprising a pressure sensitive adhesive material and an essentially discontinuous organic polymer disposed about the core. The beads are free-flowing at room temperature. Upon application of heat and/or pressure the core is activated and blends with the coating to provide a pressure sensitive adhesive.

Abstract translation: 粘合珠粒包括芯，其包含压敏粘合剂材料和围绕芯部布置的基本上不连续的有机聚合物。 珠在室温下自由流动。 在施加热和/或压力时，芯被激活并与涂层混合以提供压敏粘合剂。

公开(公告)号：WO1993017066A1

公开(公告)日：1993-09-02

申请号：PCT/GB1993000357

申请日：1993-02-19

Applicant: ALLIED COLLOIDS LIMITED ,  JOHNSON, Ian, Michael

Inventor： ALLIED COLLOIDS LIMITED

IPC: C08J03/12

CPC classification number: C08J3/12 ,  A61L15/18 ,  A61L15/60 ,  C08J3/16 ,  C08J2300/14

Abstract: Absorbent particles consisting essentially of zones of polymeric material interconnected by linkages through an effective agglomerating amount of silica or silicate can be made by forming a gel mass by mixing particles of polymeric material with water and an effective agglomerating amount of a silica or silicate, and drying and comminuting the gel mass.

Abstract translation: 基本上由聚合材料区域组成的吸收性颗粒可以通过有效凝聚量的二氧化硅或硅酸盐通过连接相互连接，可以通过将聚合材料的颗粒与水和有效凝聚量的二氧化硅或硅酸盐混合并干燥而形成凝胶块来制备 并粉碎凝胶质量。

公开(公告)号：WO1991014729A1

公开(公告)日：1991-10-03

申请号：PCT/FR1991000232

申请日：1991-03-22

Applicant: SOCIETE D'EXPLOITATION DE PRODUITS POUR LES ... ,  TROUVE, Gérard

Inventor： SOCIETE D'EXPLOITATION DE PRODUITS POUR LES ...

IPC: C08J03/12

CPC classification number: C08J3/12 ,  A61K9/2813 ,  A61K9/2866 ,  C08J2301/02 ,  C09D101/284

Abstract: The object of the present invention is a film-forming product intended for coating solid forms, a method of making it and coated items, the coating of which has been made using this film-forming product. According to the invention, this film-forming product takes the form of homogenous granulated particles capable of dispersing easily in an aqueous or organic solvent and providing a regular, non-matt film and its dry material comprises: at least one non-toxic ingestable film-forming substance in a quantity by weight of between 30 and 95 %; at least one colouring pigment in a quantity by weight of between 5 and 50 %; and possibly at least one plastifier suitable for human consumption in a quantity by weight of 30 % or less.

公开(公告)号：WO1997029148A1

公开(公告)日：1997-08-14

申请号：PCT/US1997001938

申请日：1997-02-06

Applicant: DTM CORPORATION

Inventor： DTM CORPORATION ,  MCALEA, Kevin, P. ,  FORDERHASE, Paul, F. ,  BOOTH, Richard, B.

IPC: C08J03/12

CPC classification number: C08J3/122 ,  B29C64/153 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y70/00 ,  C08J2325/04 ,  C08J2333/06

Abstract: A powder for use in selective laser sintering, from which prototype articles and masters for molds may be formed, is disclosed. The powder is formed by spray drying a polymer emulsion to yield a distribution of particles of substantially spherical shape. The powder is then air classified to remove excessively small particles from the distribution; the powder may also be screened to remove large particles therefrom, as well. The resulting distribution of particles sizes, by volume, preferably has a mean particle size of between about 20 mu and about 50 mu , with preferably less than about 5 % (by volume) of its particles with a size of less than about 15 mu and less than about 2 % (by volume) of its particles with a size of greater than about 75 mu . The powder is subjected to selective laser sintering to produce an article of approximately 55 % to 75 % of theoretical density. The article may be used as a prototype article or part, or as a pattern or master for a mold.

Abstract translation: 公开了用于选择性激光烧结的粉末，其中可以形成用于模具的原型制品和主体。 粉末通过喷雾干燥聚合物乳液形成，以产生基本上为球形的颗粒的分布。 然后将粉末进行空气分类，以从分布中去除过小的颗粒; 也可以筛选粉末以从其中除去大颗粒。 颗粒尺寸（体积）的所得分布优选具有约20至约50μm的平均粒度，优选小于约5％（体积）的其尺寸小于约15μm的颗粒，以及 小于约2％（体积）的尺寸大于约75μm的颗粒。 对粉末进行选择性激光烧结以产生约55％至75％的理论密度的制品。 该物品可以用作原型制品或零件，或用作模具的图案或母版。

公开(公告)号：WO1997017393A1

公开(公告)日：1997-05-15

申请号：PCT/JP1996003238

申请日：1996-11-05

Applicant: DAIKIN INDUSTRIES, LTD. ,  ASANO, Michio ,  TANIGAWA, Shingo ,  SHIMIZU, Tetsuo ,  KAWACHI, Shoji

Inventor： DAIKIN INDUSTRIES, LTD.

IPC: C08J03/12

CPC classification number: C08J3/12 ,  B01J2/12 ,  B01J2/14 ,  C08J2327/18

Abstract: A granulated powder of polytetrafluoroethylene for molding which is lowered in the content of coarse particles; and a process for producing the granulated powder at a high tumbling efficiency while dispensing with the use of organic liquid. A process for producing a granulated powder of polytetrafluoroethylene for molding by tumbling powdered polytetrafluoroethylene in a granulator of inclined-disc and rotary-sidewall type, wherein the granulator is one having the following characteristics: (1) the granulator is composed of a disc inclined against the horizontal plane and a sidewall provided around the disc; (2) the sidewall is formed in a state integrated with the disc and is rotated integrally with the disc; and (3) an agitator is provided eccentrically to the vortex formed by the tumbling of powdered polytetrafluoroethylene or (1) the granulator is composed of a disc inclined against the horizontal plane and a sidewall provided around the disc; (2) the sidewall is formed separately from the disc and is rotated around the disc; and (3) an agitator is provided eccentrically to the vortex formed by the tumbling of powdered polytetrafluoroethylene, and the granulation of powdered polytetrafluoroethylene is conducted by tumbling it in a state wetted with an aqueous solution containing a surfactant.

Abstract translation: 用于成型的聚四氟乙烯的造粒粉末，其粗粒子含量降低; 以及在分配使用有机液体的同时以高翻滚效率生产造粒粉末的方法。 一种用于通过在倾斜盘和旋转侧壁型造粒机中翻转粉状聚四氟乙烯来成型的聚四氟乙烯造粒粉末的方法，其中造粒机是具有以下特征的制粒机：（1）造粒机由斜盘 水平面和围绕盘设置的侧壁; （2）侧壁形成为与盘一体化的状态，并与盘一体旋转; （3）搅拌器偏心地设置成由粉状聚四氟乙烯的翻滚形成的涡流，或（1）造粒机由围绕水平面倾斜的盘和围绕盘设置的侧壁构成; （2）所述侧壁与所述盘分开形成并围绕所述盘旋转; 和（3）将搅拌器偏心地设置在由粉状聚四氟乙烯翻滚形成的涡流上，并且粉状聚四氟乙烯的制粒通过在用含有表面活性剂的水溶液润湿的状态下滚动来进行。

公开(公告)号：WO1997003112A1

公开(公告)日：1997-01-30

申请号：PCT/JP1996001855

申请日：1996-07-04

Applicant: MITSUBISHI RAYON CO., LTD. ,  IKEGAMI, Yukihiro ,  KASAI, Toshihiro

Inventor： MITSUBISHI RAYON CO., LTD.

IPC: C08J03/12

CPC classification number: C08J3/12 ,  C04B24/2641 ,  C04B24/2688 ,  C04B2103/0058 ,  C04B2111/76 ,  C08F265/04 ,  C08F265/06 ,  C08J3/126 ,  C08J2333/12 ,  C08F2/22

Abstract: A powdery material particularly useful as a modifier for cementitious materials. This material is a particulate acrylic polymer of a core-shell structure in which the core is made of an acrylic polymer having a glass transition temperature (Tg) of -20 to +15 DEG C, a weight-average molecular weight of 100,000 to 2,000,000 and an acid value of 25 mgKOH/g or below while the shell is made of an acrylic polymer having a Tg of 50 to 90 DEG C, a weight-average molecular weight of 100,000 to 2,000,000 and an acid value of 30 to 130 mgKOH/g, and which has a mean particle diameter of 200 to 700 nm and a core/shell weight ratio of 30/70 to 80/20 (% by weight).

Abstract translation: 特别用作水泥质材料改性剂的粉状材料。 该材料是核 - 壳结构的颗粒状丙烯酸聚合物，其中芯由玻璃化转变温度（Tg）为-20至+15℃，重均分子量为100,000至2,000,000的丙烯酸聚合物制成 并且酸值为25mgKOH / g以下，而壳由Tg为50〜90℃，重均分子量为100,000〜2000000，酸值为30〜130mgKOH / g的丙烯酸类聚合物构成， g，平均粒径为200〜700nm，核/壳重量比为30/70〜80/20（重量％）。

公开(公告)号：WO1997003111A3

公开(公告)日：1997-01-30

申请号：PCT/GB1996001638

申请日：1996-07-08

Applicant: ALLIED COLLOIDS LIMITED ,  ROSE, Simon, Alexander, Hanson ,  CHAMBERLAIN, Peter

Inventor： ALLIED COLLOIDS LIMITED

IPC: C08J03/12