Patents Assigned to Wuhan Keda Marble Protective Materials Co., Ltd.
  • Patent number: 9951257
    Abstract: An epoxy caulking adhesive, including: a component A and a component B. The component A at least includes the following components in parts by weight: between 50 and 100 parts of an epoxy resin, between 0 and 100 part(s) of an inorganic filler, between 0 and 20 part(s) of a thickener. The component B at least includes the following components in parts by weight: between 20 and 100 parts of an amine curing agent, between 0 and 150 part(s) of the inorganic filler, and between 0 and 25 part(s) of the thickener. The weight ratio of the component A to the component B is between 1:1 and 10:1. At least one of the inorganic filler and the thickener exists in both the component A and the component B.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: April 24, 2018
    Assignee: WUHAN KEDA MARBLE PROTECTIVE MATERIALS CO., LTD.
    Inventors: Kunwen Du, Kunwu Du, Qiong Lei, Yunfei Wang
  • Patent number: 9453085
    Abstract: An initiator composition, including at least two compounds represented by the chemical formula R—CO—O—O—CO—R and a compound represented by R1—O—O—R2, where R represents a C2-C12 alkyl or a C6-C10 aryl or substituted aryl, and R1 and R2 independently, at each occurrence, represent a C1-C10 alkyl or a C6-C10 aryl.
    Type: Grant
    Filed: September 21, 2014
    Date of Patent: September 27, 2016
    Assignee: WUHAN KEDA MARBLE PROTECTIVE MATERIALS CO., LTD.
    Inventors: Kunwen Du, Kunwu Du, Guofeng Qiu, Panfeng Mao, Liya Wang
  • Patent number: 9371433
    Abstract: An additive for a marble adhesive is disclosed. The additive is selected from the group consisting of R—(C6H4)—CH2OH, R—O—(CH2)2—O—(CH2)2—OH, R—O—CH2—CH(OH)—CH3, R—O—(CH2)2—OH, and a mixture thereof, where R represents hydrogen or alkyl.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: June 21, 2016
    Assignee: WUHAN KEDA MARBLE PROTECTIVE MATERIALS CO., LTD.
    Inventors: Kunwen Du, Kunwu Du
  • Patent number: 9334362
    Abstract: An initiator composition, including: at least two compounds represented by the chemical formula of R—CO—O—O—CO—R and a compound represented by the chemical formula of R1—CO—O—O—R2, where R represents a C2-C12 alkyl or a C6-C10 aryl or substituted aryl, R1 represents a C1-C10 alkyl or a C6-C10 aryl, and R2 represents a C1-C10 alkyl.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: May 10, 2016
    Assignee: WUHAN KEDA MARBLE PROTECTIVE MATERIALS CO., LTD.
    Inventors: Kunwen Du, Kunwu Du, Guofeng Qiu, Panfeng Mao, Liya Wang
  • Patent number: 9062234
    Abstract: An adhesive including at least 100 weight parts of an unsaturated polyester resin suitable for air-drying, between 0 and 5 weight parts of hydrogenated castor oil, between 1 and 20 weight parts of a nano powder, between 10 and 250 weight parts of a filler, and between 1 and 15 weight parts of an anti-shrinking agent.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: June 23, 2015
    Assignee: WUHAN KEDA MARBLE PROTECTIVE MATERIALS CO., LTD.
    Inventors: Kunwen Du, Kunwu Du
  • Patent number: 8937115
    Abstract: An adhesive for filling gaps between stones, the adhesive including at least 100 weight parts of an unsaturated polyester resin suitable for air-drying, between 1 and 5 weight parts of hydrogenated castor oil, between 10 and 250 weight parts of a filler, and between 1 and 15 weight parts of an anti-shrinking agent. The adhesive has good permeability and shrinkage resistance, and high brightness after being polished.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: January 20, 2015
    Assignee: Wuhan Keda Marble Protective Materials Co., Ltd.
    Inventors: Kunwen Du, Ziqiang Xin, Kunwu Du
  • Patent number: 8674003
    Abstract: An adhesive, including: at least 100 weight parts of an unsaturated polyester resin suitable for air-drying, between 0 and 5 weight parts of hydrogenated castor oil, between 1 and 20 weight parts of nano powder, between 0 and 100 weight parts of a filler, and between 1 and 15 weight parts of an anti-shrinking agent.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: March 18, 2014
    Assignee: Wuhan Keda Marble Protective Materials Co., Ltd.
    Inventors: Kunwen Du, Kunwu Du
  • Publication number: 20130338285
    Abstract: An additive for a marble adhesive, including R—(C6H4)—CH3OH, R—O—(CH2)2—O—(CH2)2—OH, R—O—CH2—CH(OH)—CH3, R-O-(CH2)2-OH, or a mixture thereof, where R represents hydrogen or an alkane.
    Type: Application
    Filed: August 26, 2013
    Publication date: December 19, 2013
    Applicant: WUHAN KEDA MARBLE PROTECTIVE MATERIALS CO., LTD.
    Inventors: Kunwen DU, Kunwu DU
  • Patent number: 8563630
    Abstract: A dry adhesive consisting at least of component A and component B. Component A being red in color and consisting of at least an epoxy resin, a coupling agent, an active diluting agent, an inorganic filler, and a red organic paste. Component B being green in color and consisting of at least an organic compound-modified amine as a curing agent, the coupling agent, the inorganic filler, an accelerator, a thickener, the active diluting agent, and a green organic paste. Also provided is a preparation method for the dry adhesive. The dry adhesive has high strength, good weather resistance, and is easy to prepare.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: October 22, 2013
    Assignee: Wuhan Keda Marble Protective Materials Co., Ltd.
    Inventors: Danjiu Sun, Shuangfeng Wu, Yingfan Xiang, Kunwen Du
  • Patent number: 8278369
    Abstract: An epoxy-based antiskid adhesive having component A and component B, the component A having 1) between 20 and 35 parts of an epoxy resin; 2) between 0.5 and 3 parts of a diluting agent; 3) between 1 and 5 parts of silica; 4) between 20 and 60 parts of quartz sand; 5) between 1 and 6 parts of quartz powder; 6) between 1 and 10 parts of an active calcium; and 7) between 1 and 5 parts of triple superphosphate; and the component B having 1) between 20 and 40 parts of an organic compound-modified amine; 2) between 1 and 5 parts of an accelerator; 3) between 0 and 3 parts of a coupling agent; 4) between 5 and 10 parts of silica; 5) between 20 and 50 parts of quartz sand; 6) between 1 and 10 parts of quartz powder; and 7) between 1 and 10 parts of silica fume.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: October 2, 2012
    Assignee: Wuhan Keda Marble Protective Materials Co., Ltd.
    Inventors: Danjiu Sun, Shuangfeng Wu, Yingfan Xiang, Kunwen Du