公开(公告)号：US4366269A

公开(公告)日：1982-12-28

申请号：US157191

申请日：1980-06-06

申请人： Koue Ohkawa ,  Shin Fujii ,  Takashi Seino

发明人： Koue Ohkawa ,  Shin Fujii ,  Takashi Seino

IPC分类号： B22C1/22 ,  C08F299/04 ,  C08G63/52 ,  C08L67/06

CPC分类号： C08G63/52 ,  B22C1/2266 ,  C08F299/0478 ,  C08L67/06

摘要： Resin coated foundry sand, using a binder composition comprising 100 parts by weight of a crystalline unsaturated polyester and, as a cross-linking agent, 5 to 30 parts by weight of diallyl phthalate monomer. The binder is a scarcely tacky solid at room temperature but at a temperature somewhat above its softening temperature assumes a fluid state and exhibits a viscosity below about 500 poises. The resin coated sand is prepared by mixing heated foundry sand with the binder composition, with the addition of an organic peroxide which serves as a curing catalyst. Moulds and cores formed of this resin coated sand are high in initial strength but, nevertheless, can easily be disintegrated at the shake-off stage even when a relatively low pouring temperature is employed as in an aluminum alloy casting process.

摘要翻译： 使用包含100重量份结晶不饱和聚酯和作为交联剂的粘合剂组合物的树脂涂层铸造砂5至30重量份邻苯二甲酸二烯丙酯单体。 粘合剂在室温下是几乎不粘的固体，但是在略高于其软化温度的温度下呈现流体状态并且显示低于约500泊的粘度。 通过将加热的铸造砂与粘合剂组合物混合，加入作为固化催化剂的有机过氧化物来制备树脂涂覆的砂。 由该树脂涂覆的砂形成的模具和芯具有初始强度高，但是即使在铝合金铸造工艺中使用相对低的浇注温度的情况下，也可以在脱模阶段容易地分解。

公开(公告)号：US4365047A

公开(公告)日：1982-12-21

申请号：US154908

申请日：1980-05-30

申请人： Koue Ohkawa ,  Shin Fujii ,  Takashi Seino

发明人： Koue Ohkawa ,  Shin Fujii ,  Takashi Seino

IPC分类号： B22C1/22 ,  C08F299/04 ,  C08L67/06

CPC分类号： C08F299/0442

摘要： A crystalline unsaturated polyester composition for binding foundry sand, said composition comprising:(A) 100 parts by weight of an unsaturated polyester resin which is a mixture of 100 parts by weight of a normally solid, substantially tack-free, crystalline unsaturated polyester and 0 to 50 parts by weight of an unsaturated prepolymer or monomer copolymerizable with said unsaturated polyester or both, and(B) 0.1 to 10 parts by weight of a mixture of at least two of (1) a radical polymerization catalyst which requires a temperature of at least 70.degree. C. but below 90.degree. C. to obtain a half-period value of 10 hours, (2) a radical polymerization catalyst which requires a temperature of at least 90.degree. C. but below 110.degree. C. to obtain a half-period value of 10 hours and (3) a radical polymerization catalyst which requires a temperature of at least 110.degree. C. but not exceeding 130.degree. C. to obtain a half-period value of 10 hours.

摘要翻译： 一种用于结合铸造砂的结晶不饱和聚酯组合物，所述组合物包含：（A）100重量份的不饱和聚酯树脂，其是100重量份通常为固体，基本无粘性的结晶不饱和聚酯和0 至50重量份的不饱和预聚物或可与所述不饱和聚酯或两者共聚的单体，和（B）0.1至10重量份的（1）自由基聚合催化剂中的至少两种的混合物，其需要在 至少70℃，但低于90℃，获得10小时的半周期值，（2）自由基聚合催化剂，其需要至少90℃但低于110℃的温度以获得一半 - 周期值为10小时，（3）自由基聚合催化剂，其需要至少110℃但不超过130℃，以获得10小时的半周期值。

公开(公告)号：US4417011A

公开(公告)日：1983-11-22

申请号：US474683

申请日：1983-04-01

申请人： Koue Ohkawa ,  Shin Fujii ,  Takashi Seino

发明人： Koue Ohkawa ,  Shin Fujii ,  Takashi Seino

IPC分类号： B22C1/22 ,  C08F299/04 ,  C08G63/54 ,  C08L67/06 ,  C08K3/36

CPC分类号： C08F299/0478 ,  B22C1/2266 ,  C08G63/54 ,  C08L67/06

摘要： A resin composition for bonding of foundry sand, said composition comprising as a resin component a crystalline unsaturated polyester being solid and substantially tack-free at room temperature and having an acid value of 15 to 100, said unsaturated polyester being prepared by polymerizing (A) a dicarboxylic acid component containing 10 to 50 mole % of terephthalic acid, an alkyl terephthalate, isophthalic acid or an alkyl isophthalate and 50 to 90 mole % of fumaric acid and (B) a glycol component containing at least 90 mole % of ethylene glycol, trimethylene glycol, neopentyl glycol, hydrogenated bisphenol A or 2,2-d-(4-hydroxypropoxyphenyl)propane.

摘要翻译： 1.一种用于将铸造砂粘合的树脂组合物，所述组合物包含作为树脂组分的在室温下为固体且基本上无粘性的结晶不饱和聚酯，其酸值为15至100，所述不饱和聚酯通过聚合（A） 含有10〜50摩尔％对苯二甲酸，对苯二甲酸烷基酯，间苯二甲酸或间苯二甲酸烷基酯和50〜90摩尔％的富马酸的二羧酸成分和（B）含有至少90摩尔％乙二醇的二醇成分， 丙二醇，新戊二醇，氢化双酚A或2,2-二 - （4-羟丙氧基苯基）丙烷。

公开(公告)号：US4248974A

公开(公告)日：1981-02-03

申请号：US46308

申请日：1979-06-07

申请人： Shin Fujii ,  Koue Ohkawa ,  Takashi Seino

发明人： Shin Fujii ,  Koue Ohkawa ,  Takashi Seino

IPC分类号： B22C1/02 ,  B22C1/22 ,  C12P19/34

CPC分类号： B22C1/22 ,  B22C1/02

摘要： A binder composition for binding foundry sand particles to form molds and cores in sand mold casting processes which may be aluminum alloy casting processes, comprising a thermosetting resin and powdery zinc carbonate which is dispersed in the resin and, while the molds and cores are heated by the poured molten metal, undergoes thermal decomposition with generation of carbon dioxide gas which aids the molds and cores to become readily disintegratable.

摘要翻译： 一种粘结剂组合物，用于粘结铸造砂粒以在砂模铸造工艺中形成模具和芯，其可以是铝合金铸造工艺，其包括分散在树脂中的热固性树脂和粉末状碳酸锌，并且当模具和芯体被 浇注的熔融金属会产生二氧化碳气体的热分解，这有助于模具和芯体易于分解。

公开(公告)号：US4246165A

公开(公告)日：1981-01-20

申请号：US967541

申请日：1978-12-07

申请人： Shin Fujii ,  Koue Ookawa ,  Takashi Seino

发明人： Shin Fujii ,  Koue Ookawa ,  Takashi Seino

IPC分类号： C08G63/00 ,  B22C1/02 ,  B22C1/22 ,  C08G63/52 ,  C08L67/06

CPC分类号： B22C1/02 ,  B22C1/2266

摘要： A crystalline unsaturated polyester, which is a scarcely tacky solid at room temperature but at a temperature somewhat above its softening temperature assumes a fluid state with a viscosity below about 500 poises, is used as a principal component of a binder for the preparation of a resin coated casting sand for use in shell mold casting of, particularly, aluminum alloys with an aim of facilitating the disintegration of molds and cores. The binder is mixed with a conventional foundry sand at an appropriately elevated temperature in the presence of an organic peroxide as a polymerization catalyst. The binder may preferably contain a cross-linking agent such as diallyl phthalate and optionally a silane as a coupling agent and/or a cross-linking accelerator.

摘要翻译： 结晶不饱和聚酯在室温下稍微高于其软化温度的情况下是几乎不发粘的固体，假定粘度低于约500泊的流体状态用作制备树脂的粘合剂的主要成分 用于特别是铝合金的壳模铸造的涂覆铸造砂，其目的是便于模具和芯的分解。 在作为聚合催化剂的有机过氧化物的存在下，将粘合剂与常规的铸造砂在适当升高的温度下混合。 粘合剂可以优选含有交联剂如邻苯二甲酸二烯丙酯和任选的作为偶联剂的硅烷和/或交联促进剂。

公开(公告)号：US20140127088A1

公开(公告)日：2014-05-08

申请号：US14128570

申请日：2011-08-18

申请人： Toshiyuki Miyashita ,  Shin Fujii

发明人： Toshiyuki Miyashita ,  Shin Fujii

IPC分类号： F01N3/28 ,  B01J29/85

CPC分类号： F01N3/2803 ,  B01D46/2466 ,  B01D46/247 ,  B01D53/9418 ,  B01D2046/2496 ,  B01J29/85 ,  B01J35/0026 ,  B01J35/04 ,  B01J2229/42

摘要： A honeycomb structure includes honeycomb units which contain silicoaluminophosphate particles and an inorganic binder and are provided with a plurality of cells that extend in the longitudinal direction from a first end surface to a second end surface of the honeycomb structure and are partitioned by cell walls, in which Si/(Al+P) of the silicoaluminophosphate particles is in a range of 0.16 to 0.33 by molar ratio, a thickness of the cell wall is in a range of 0.10 mm to 0.25 mm, a cell density of the cells is in a range of 93 cells/cm2 to 155 cells/cm2, and a ratio R/L of a diameter R of the honeycomb structure to a total length L of the honeycomb structure is 1.0 or more.

摘要翻译： 蜂窝结构体包括含有硅铝磷酸盐颗粒和无机粘合剂的蜂窝单元，并且设置有从蜂窝结构体的第一端面向第二端面在长度方向上延伸的细胞，并且被细胞壁隔开， 硅铝磷酸盐粒子的Si /（Al + P）的摩尔比为0.16〜0.33，细胞壁的厚度在0.10mm〜0.25mm的范围内，细胞的细胞密度为 93个/ cm 2〜155个/ cm 2的范围，蜂窝结构体的直径R与蜂窝结构体的总长度L的比R / L为1.0以上。

公开(公告)号：US4353854A

公开(公告)日：1982-10-12

申请号：US213451

申请日：1980-12-05

申请人： Akira Oyamada ,  Shin Fujii ,  Nobuhiko Okoshi ,  Satoshi Ambe ,  Shigeyoshi Nakagawa

发明人： Akira Oyamada ,  Shin Fujii ,  Nobuhiko Okoshi ,  Satoshi Ambe ,  Shigeyoshi Nakagawa

IPC分类号： B01J35/04 ,  B28B1/00 ,  B28B3/26 ,  B28B11/00 ,  B32B3/12 ,  B32B18/00 ,  C04B35/622 ,  C04B35/632 ,  C04B35/634 ,  C04B35/636 ,  C04B35/638 ,  F01N3/28 ,  F28F21/04 ,  C04B37/00

CPC分类号： C04B35/63408 ,  B01J35/04 ,  B28B1/002 ,  C04B35/632 ,  C04B35/634 ,  C04B35/63416 ,  C04B35/6342 ,  C04B35/63424 ,  C04B35/63472 ,  C04B35/63492 ,  C04B35/636 ,  C04B35/6365 ,  C04B35/638 ,  F01N3/2828 ,  F28F21/04

摘要： A method of producing a large-sized body of a ceramic honeycomb structure, comprising the steps of integrating unfired unit blocks each having a prismatic shape and a honeycomb structure with axial gas passages into a large-sized body by bonding the unit blocks to one another with a bonding agent and firing this body. The unit blocks are formed of a ceramic composition consisting of a powdered ceramic material and completely gasifiable substances, and essential components of the bonding agent are also completely gasifiable substances such as a combination of an organic binder material used in the ceramic composition and a solvent for this binder material. The gasifiable substances present in the large-sized body are completely dissipated by heating before the occurrence of sintering of the ceramic material by firing, so that the fired product is a wholly and homogeneously ceramic body of a honeycomb structure highly resistant to thermal shocks.

摘要翻译： 一种制造陶瓷蜂窝结构体的大型体的方法，其特征在于，包括以下步骤：将具有棱柱形状的未烧结单元块和蜂窝结构体与轴向气体通道组合成大尺寸体， 用粘合剂和烧制本体。 单元块由陶瓷组合物构成，陶瓷组合物由粉末陶瓷材料和完全可气化的物质组成，粘结剂的基本成分也是完全可气化的物质，例如陶瓷组合物中使用的有机粘合剂材料和用于陶瓷组合物的溶剂 这种粘合剂材料。 存在于大型体内的可气化物质通过烧结而在烧结陶瓷材料发生之前通过加热而完全消散，使得烧制品是高度耐热冲击的蜂窝结构体的全部和均匀的陶瓷体。