Patents Assigned to San Fang Chemical Industry Co., Ltd.
  • Publication number: 20110000141
    Abstract: The present invention mainly relates to a polishing pad comprising a base material comprising fibers; a first membrane with low permeability; a two-component paste formed on the upper surface of the first membrane with low permeability for adhering the base material to the first membrane with low permeability; and a polyurethane paste formed on the lower surface of the first membrane with low permeability. A method of polishing a substrate comprising using the polishing pad and a method for manufacturing the polishing pad as described above are also provided. The polishing pad as mentioned above prevents the polishing pad from detaching from the polishing platen or head. The polishing pad is easy to be replaced without leaving residues on the polishing platen or head.
    Type: Application
    Filed: September 16, 2010
    Publication date: January 6, 2011
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih Feng, I-Peng Yao, Lyang-Gung Wang, Yung-Chang Hung
  • Publication number: 20110003536
    Abstract: The present invention mainly relates to a polishing pad and method of producing the same. The polishing pad comprises a base material having a surface for polishing a substrate, wherein the surface comprises a non-woven fabric and an elastomer. The elastomer is embedded into the fabric, and the non-woven fabric comprises a plurality of first long fibers randomly entangled with each other.
    Type: Application
    Filed: September 16, 2010
    Publication date: January 6, 2011
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih Feng, I-Peng Yao, Chen-Hsiang Chao, Yung-Chang Hung
  • Publication number: 20100330334
    Abstract: The present invention relates to an artificial leather and a method for manufacturing the same. According to the method of the invention, an elastic layer is disposed on a surface of a base material, a color pattern layer is disposed on an uneven surface of the elastic layer and a cover layer covers the color pattern layer, so as to form the artificial leather. The elastic layer includes a plurality of sparkling materials. By utilizing the sparkling materials, the color pattern layer and the uneven surface, the artificial leather has a sparkling effect at various angles by showing the gradation of the stacking particles (sparkling materials). In addition, the cover layer can protect the color pattern layer on the elastic layer, so that the color pattern layer has excellent sturdiness against peeling and light.
    Type: Application
    Filed: January 15, 2010
    Publication date: December 30, 2010
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih Feng, Pai-Hsiang Wu, Jung-Ching Chang, Yuan-Fang Tsai, Jui-Che Chang
  • Patent number: 7824249
    Abstract: The present invention relates to a polishing material having polishing particles and a method for making the same. The polishing material having polishing particles includes a base material, a plurality of polishing particles and a polymer elastic body. The base material has a plurality of fibers for defining a plurality of grid-spaces. The polishing particles are distributed in the grid-spaces. The polymer elastic body covers the base material and the polishing particles, whereby, the polishing particles are uniformly distributed on a surface of a polishing workpiece during the polishing process. Furthermore, the base material prevents the polishing particles from contacting the polishing workpiece so as to avoid scratching of the polishing workpiece. Also, the base material provides effects for sweeping the small grinded pieces.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: November 2, 2010
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, I-Peng Yao, Lyang-Gung Wang, Yung-Chang Hung, Chao-Yuan Tsai
  • Patent number: 7794796
    Abstract: In a method for making extensible artificial leather, a substrate is supported on in-extensible woven cloth and firmly located on a coating machine. A highly solid-containing water-based polyurethane resin is coated on the substrate to form a middle layer with tiny open cells. The middle layer is dried, and the woven cloth is removed from the substrate. A superficial layer of polyurethane is attached to the middle layer in a dry process so that the extensible artificial leather is made with excellent strength against peeling, abrasion and dissolution.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: September 14, 2010
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, Chun-Wei Wu, Kun-Lin Chiang, Yung-Ching Huang
  • Patent number: 7789738
    Abstract: The present invention relates to a sheet for mounting a polishing workpiece. The sheet comprises a substrate, a surface layer and a slightly rough layer. The substrate has a surface. The surface layer is located on the surface of the substrate, with no hole structure existing in the interior thereof, and has a surface. The slightly rough layer is located on the surface of the surface layer to carry and mount the polishing workpiece, with no hole structure existing in the interior thereof. Accordingly, when the polishing workpiece contacts the slightly rough layer, the air therebetween is easily vented out via the slightly rough layer, without the phenomenon of air wrapping, which increases the adsorption force between the polishing workpiece and the sheet.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: September 7, 2010
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, I-Peng Yao, Chen-Hsiang Chao
  • Patent number: 7762873
    Abstract: A polishing pad includes a body having a polymer layer and a polishing layer. The polymer layer has opposite first and second faces. The polymer layer includes a plurality of first ultrafine fibers and a polymer bonding the first ultrafine fibers together. The polishing layer is formed on the first face of the polymer layer. The polishing layer includes a plurality of second ultrafine fibers and is free of the polymer. The first and second ultrafine fibers are identical to each other. The second ultrafine fibers have a first concentration of ultrafine fibers by volume higher than 80% a total volume of the polishing layer. The first ultrafine fibers of the polymer layer have a second concentration of ultrafine fibers by volume to a total volume of the polymer layer. The first concentration is higher than the second concentration.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: July 27, 2010
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, Chen-Hsiang Chao, I-Peng Yao
  • Publication number: 20100041294
    Abstract: A core-sheath fiber has a core and a sheath. The core comprises 0.1 to 10 wt % of carbon black pigment particles. The sheath surrounds the core preventing the core from being exposed. Because the carbon black pigment particles are mainly distributed in the core and the core is surrounded by the sheath with little or no carbon black pigment particles, a surface of the core-sheath fiber has low friction and electrical conductivity. Therefore, a lifetime of a punch needle used in machinery to produce a nonwoven is maintained and the nonwoven can undergo high frequency treatment to form artificial leather. Additionally, the sheath has little or no carbon black pigment particles, so the sheath is improved compatibility with polyurethane (PU) used for high frequency treatment.
    Type: Application
    Filed: October 10, 2008
    Publication date: February 18, 2010
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih FENG, Chih-Yi LIN, Jui-Peng TUNG, Gao-Long YANG, Szu-Wei HUANG, Ti-Shun YEH, Kuo-Hsin CHIEN
  • Patent number: 7629554
    Abstract: The present invention relates to a sheet for mounting a polishing workpiece. The sheet comprises a substrate and a surface layer. The substrate has a surface. The surface layer is located on the surface of the substrate, with no hole structure existing in the interior thereof, and has a plurality of through holes. Accordingly, when the polishing workpiece contacts the surface layer, the air therebetween is vented to the substrate via the through holes and then is easily vented out, without the phenomenon of air wrapping, which increases the adsorption force between the polishing workpiece and the sheet, thereby improving the polishing effect of the polishing workpiece.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: December 8, 2009
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, I-Peng Yao, Chen-Hsiang Chao
  • Publication number: 20090288761
    Abstract: The present invention relates to a composite with thermo-formability, a method for making the same and a method for making a casing with a texture on the surface thereof. The composite includes a PU medium layer, a thermo-formable resin layer, a base layer and a surface layer. The thermo-formable resin layer is disposed on the PU medium layer, and includes polyol. The base layer is disposed on the thermo-formable resin layer. The surface layer is disposed on the base layer. As a result, the composite has good stability after thermoforming, and plastic can be injected into the composite, so a PC film is unnecessary. Moreover, the composite may be adhered to a substrate directly or after thermoforming.
    Type: Application
    Filed: April 3, 2009
    Publication date: November 26, 2009
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih Feng, I-Peng Yao, Ko-Feng Wang, Kai-Feng Kang, Chun-Yi Kuo
  • Publication number: 20090291268
    Abstract: A resin surface layer and a method of fabricating the same, and a composite having the resin surface layer and a method of fabricating the same, are provided. The method of fabricating the resin surface layer includes: (a) providing a base, made of a resin and including a plurality of additive particles randomly distributed in the base, wherein the additive particles are selected from a group consisting of pigments, dyes, colorants, coloring matters, and pearl powders; (b) moving the base constantly, and providing a magnetic field generating device to generate an exterior magnetic field that has an uneven distribution of magnetic field intensity, and is applied to the base to change the orientation of the additive particles, so that the additive particles are arranged in a predetermined form; and (c) drying the base to make a surface of the base exhibit a visual effect of 3D texture. Thus, the visual effect of any 3D texture can be achieved by controlling the orientation of the additive particles.
    Type: Application
    Filed: January 27, 2009
    Publication date: November 26, 2009
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih Feng, Pai-Hsiang Wu, Chien-Chia Huang, Chin-Shih Wang
  • Publication number: 20090258578
    Abstract: The present invention relates to a polishing pad and method for making the same. In the invention, a liquid-state polymer material is directly formed on the surface of a base material, and then the liquid-state polymer material is solidified to form a flat grinding layer. Whereby, the polishing pad has high unity and flatness. The grinding layer has attenuated structures and a plurality of holes, thus increasing the storage ability of polishing particles distributed in a polishing liquid. In addition, the polishing pad has high compression ratio, so the polishing pad can compactly contact a polishing workpiece, and will not scratch the surface of the polishing workpiece scratched. Therefore, the polishing effect and quality will be improved.
    Type: Application
    Filed: September 11, 2008
    Publication date: October 15, 2009
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih Feng, Chun-Ta Wang, Yung-Chang Hung, I-Peng Yao
  • Publication number: 20090252949
    Abstract: The present invention relates to a composite sheet for mounting a workpiece and a method for making the same. The composite sheet includes a buffer layer and an adsorption layer. The buffer layer has a plurality of continuous pores. The adsorption layer is located on the buffer layer for adsorbing a workpiece, and the compression ratio of the buffer layer is higher than that of the adsorption layer. Thereby, due to low hardness, good adsorption effect, and high compression ratio, the composite sheet of the present invention has good buffer effect.
    Type: Application
    Filed: June 4, 2009
    Publication date: October 8, 2009
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih Feng, I-Peng Yao, Lyang-Gung Wang, Zong-Yao Ku
  • Publication number: 20090252876
    Abstract: The present invention relates to a sheet for mounting a polishing workpiece. The sheet comprises a substrate and a surface layer. The substrate has a surface. The surface layer is located on the surface of the substrate, with no hole structure existing in the interior thereof, and has a surface and a slightly rough layer. The slightly rough layer is located on the surface of the surface layer to carry and mount the polishing workpiece, with no hole structure existing in the interior thereof. Accordingly, when the polishing workpiece contacts the slightly rough layer, the air therebetween is easily vented out via the slightly rough layer, without the phenomenon of air wrapping, which increases the adsorption force between the polishing workpiece and the sheet.
    Type: Application
    Filed: June 10, 2009
    Publication date: October 8, 2009
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih Feng, I-Peng Yao, Chen-Hsiang Chao
  • Patent number: 7556555
    Abstract: The present invention mainly relates to a polishing pad comprising a base material comprising fibers; a membrane with low permeability; and a buffer layer formed between the base material and an upper surface of the membrane with low permeability and embedded into the fibers of the base material. A method of polishing a substrate comprising using the polishing pad and a method for manufacturing the polishing pad as described above are also provided.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: July 7, 2009
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, I-Peng Yao, Lyang-Gung Wang, Yung-Chang Hung
  • Publication number: 20090061155
    Abstract: A resin surface layer and a method of fabricating the same, and a composite having the resin surface layer and a method of fabricating the same are provided. The method of fabricating the resin surface layer includes: (a) providing a base, made of a resin and including a plurality of additive particles randomly distributed in the base; (b) changing the orientation of the additive particles to arrange the additive particles in a predetermined form; and (c) drying the base to make a surface of the base exhibit a visual effect of 3D texture. Thus, the visual effect of any 3D texture can be achieved by controlling the orientation of the additive particles.
    Type: Application
    Filed: December 19, 2007
    Publication date: March 5, 2009
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih FENG, Pai-Hsiang WU, Chien-Chia HUANG, Cheng-Chi WU, Chih-Shih WANG
  • Publication number: 20090051081
    Abstract: A method for producing microfine fibers having low resistance to deformation and high elasticity in accordance with the present invention comprises acts of: (a) providing polymer A and polymer B; (b) melting polymer A and polymer B to make a filament; (c) drawn the filament to make a staple fiber; (d) entangling the staple fiber to form a non-woven; (e) impregnating the non-woven with a impregnating agent; and may further comprise the acts of (f) using polyurethane impregnating the nonwoven with the impregnating agent or without the impregnating agent; (g) coagulating the non-woven with dimethylformamide (DMF); (h) washing the non-woven with hot water; (i) impregnating the non-woven with a treatment agent; (j) abrading the non-woven to attain a split type mirofine fiber substrate; and (k) bonding a coating to the microfine fiber substrate. Therefore, the method can attain an artificial leather product having low resistance to deformation and high elasticity.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 26, 2009
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih FENG, Chih-Yi LIN, Gao-Long YANG, Szu-Wei HUANG, Ming-Hsiung LIANG, Jong-Shy LIN, Yuan-Chih LAN
  • Patent number: 7494697
    Abstract: There is provided a method for splitting a split type conjugate fiber. The method includes four steps. Firstly, there is provided a first polymer with crystallization of 40% to 95% and a second polymer with crystallization of 1% to 25%. Secondly, a conjugate fiber is made of the first and second polymers by conjugate spinning. Thirdly, the conjugate fiber is submerged in water so that the conjugate fiber contains water. Finally, the conjugate fiber is heated and split into fine fibers.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: February 24, 2009
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Lung-Chuan Wang, Chung-Chih Feng, Kuo-Kuang Cheng, Ta-Min Cheng, Chih-Yi Lin, Kuan-Hsiang Chang, Gao-Long Yang
  • Publication number: 20080299879
    Abstract: The present invention mainly relates to a polishing pad comprising a base material comprising fibers; a membrane with low permeability; a two-component paste formed on the upper surface of the membrane with low permeability for adhering the base material to the membrane with low permeability; and a polyurethane paste formed on the lower surface of the membrane with low permeability. A method of polishing a substrate comprising using the polishing pad and a method for manufacturing the polishing pad as described above are also provided. The polishing pad as mentioned above prevents the polishing pad from detaching from the polishing platen or head. The polishing pad is easy to be replaced without leaving residues on the polishing platen or head.
    Type: Application
    Filed: May 29, 2007
    Publication date: December 4, 2008
    Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.
    Inventors: Chung-Chih Feng, I-Peng Yao, Lyang-Gung Wang, Yung-Chang Hung, Kun-Cheng Sung
  • Publication number: 20080200105
    Abstract: The present invention relates to a carrier film for mounting a polishing workpiece. The carrier film comprises a surface substrate and a buffer substrate. The surface substrate comprises holes, and the material of the surface substrate comprises elastomer. The buffer substrate comprises holes, and the material of the buffer substrate comprises the elastomer. The surface substrate and the buffer substrate are adhered with adhesive comprising the elastomer. A method for making the carrier film is also provided. When polishing, the carrier film provides a good buffer property to conduct and release down force applied on the polishing workpiece.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 21, 2008
    Applicant: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, I-Peng Yao, Lyang-Gung Wang, Yung-Chang Hung