Patents by Inventor Qiangqiang Yan

Qiangqiang Yan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing a solventless polyorganosiloxane pellet and a waterborne dispersion of a silicone pressure sensitive adhesive base
    Patent number: 12116511
    Abstract: A process for preparing a waterborne dispersion of a silicone pressure sensitive adhesive base includes the use of a solventless polyorganosiloxane pellet containing a polyorganosilicate resin and a polyorganosiloxane gum. The waterborne dispersion of the silicone pressure sensitive adhesive base can be combined with a free radical initiator, and dried and cured to form a silicone pressure sensitive adhesive.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: October 15, 2024
    Assignees: Dow Silicones Corporation, Dow Global Technologies LLC
    Inventors: Yunlong Guo, Hongyu Chen, David L. Malotky, Bin Chen, Zhihua Liu, Xiucuo Li, Yan Zhou, Wenjie Chen, Li Ding, Qiangqiang Yan
  • PROCESS FOR PREPARING A SOLVENTLESS POLYORGANOSILOXANE PELLET AND A WATERBORNE DISPERSION OF A SILICONE PRESSURE SENSITIVE ADHESIVE BASE
    Publication number: 20240301250
    Abstract: A process for preparing a waterborne dispersion of a silicone pressure sensitive adhesive base includes the use of a solventless polyorganosiloxane pellet containing a polyorganosilicate resin and a polyorganosiloxane gum. The waterborne dispersion of the silicone pressure sensitive adhesive base can be combined with a free radical initiator, and dried and cured to form a silicone pressure sensitive adhesive.
    Type: Application
    Filed: April 9, 2021
    Publication date: September 12, 2024
    Inventors: Yunlong Guo, Hongyu Chen, David L. Malotky, Bin Chen, Zhihua Liu, Xiucuo Li, Yan Zhou, Wenjie Chen, Li Ding, Qiangqiang Yan
  • AQUEOUS DISPERSION OF POLYISOBUTYLENE AND POLYOLEFIN PARTICLES
    Publication number: 20240301188
    Abstract: The present invention relates to a composition comprising an aqueous dispersion of a) polyisobutylene particles; and b) polyolefin particles, which are polyethylene or polypropylene particles, wherein the weight-to-weight ratio of the polyisobutylene particles to the polyolefin particles is in the range of from 20:80 to 80:20. The composition of the present invention is useful for making coatings on paper or paperboard substrates with excellent moisture barrier and tack properties.
    Type: Application
    Filed: April 15, 2021
    Publication date: September 12, 2024
    Inventors: Hongyu Chen, Yunlong Guo, David L. Malotky, Alan M. Piwowar, Xiaomei Song, Qiangqiang Yan
  • ARTICLE COATED WITH A POLYISOBUTYLENE-POLYOLEFIN FILM
    Publication number: 20240218599
    Abstract: The present invention relates to an article comprising a film affixed to a paper or paperboard substrate, wherein the film comprises a polyisobutylene and a polyolefin wherein the film has a thickness in the range of from about 3 ?m to 20 ?m. The article of the present invention is useful for providing desirable moisture barrier and tack properties.
    Type: Application
    Filed: April 15, 2021
    Publication date: July 4, 2024
    Inventors: Hongyu Chen, Yunlong Guo, David L. Malotky, Alan M. Piwowar, Xiaomei Song, Qiangqiang Yan
  • Aqueous dispersion of a silicone pressure sensitive adhesive base and methods for preparation and use of the dispersion
    Patent number: 11781050
    Abstract: An aqueous dispersion of a silicone pressure sensitive adhesive base can be combined with a curing agent and cured to form a silicone pressure sensitive adhesive. The aqueous dispersion of the silicone pressure sensitive adhesive base includes a bis-hydroxyl-terminated polydiorganosiloxane; a polyorganosilicate resin; cumene; a surfactant; and water. A curing agent such as a peroxide compound or an aminosilane may be combined with the aqueous disperison of the silicone pressure sensitive adhesive base to form a silicone pressure sensitive adhesive composition. A pressure sensitive adhesive article may be formed by a method including coating a surface of a substrate with the silicone pressure sensitive adhesive composition, removing water, and curing the silicon pressure sensitive adhesive composition to form a silicone pressure sensitive adhesive on the surface of the substrate.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: October 10, 2023
    Assignees: DOW GLOBAL TECHNOLOGIES LLC, Dow Silicones Corporation
    Inventors: Qiangqiang Yan, Yunlong Guo, Wenjie Chen, Li Ding, Hongyu Chen, Cheng Shen, Ruihua Lu, Yan Zhou, Zhihua Liu
  • AQUEOUS DISPERSION OF A SILICONE PRESSURE SENSITIVE ADHESIVE BASE AND METHODS FOR PREPARATION AND USE OF THE DISPERSION
    Publication number: 20230193096
    Abstract: An aqueous dispersion of a silicone pressure sensitive adhesive base can be combined with a curing agent and cured to form a silicone pressure sensitive adhesive.
    Type: Application
    Filed: July 21, 2021
    Publication date: June 22, 2023
    Inventors: Qiangqiang Yan, Yunlong Guo, Wenjie Chen, Li Ding, Hongyu Chen, Cheng Shen, Ruihua Lu, Yan Zhou, Zhihua Liu
  • CURABLE SILICONE PRESSURE SENSITIVE ADHESIVE EMULSION AND METHOD FOR ITS PREPARATION
    Publication number: 20230138123
    Abstract: A method for preparing a curable silicone pressure sensitive adhesive emulsion includes preparing a dispersion of benzoyl peroxide and a phenoxy-functional alcohol and thereafter combining the dispersion with the other starting materials of the emulsion.
    Type: Application
    Filed: May 27, 2020
    Publication date: May 4, 2023
    Inventors: Qiangqiang Yan, Yunlong Guo, Wenjie Chen, Li Ding, Peng Gao, Yan Zhou, Zhihua Liu