Patents by Inventor Tatiana Dimitrova

Tatiana Dimitrova 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).

  • Publication number: 20240043689
    Abstract: A one-part room temperature vulcanisable (RTV) silicone composition is provided. The one-part RTV silicone composition comprises a polyorganosiloxane polymer comprising at least two hydrolysable groups per molecule, anhydrous reinforcing filler(s), cross-linker(s), a tin (iv) based condensation catalyst and one or more low molecular weight linear or branched nitrogen containing compounds. The compounds are selected from amidines, guanidines and other alkyl amines and alkyl polyamines. The composition is designed to be storable for at least 6 months at a temperature (T° C.) in a range of between 0° C. and 25° C. inclusive.
    Type: Application
    Filed: December 20, 2021
    Publication date: February 8, 2024
    Inventors: Tatiana DIMITROVA, Anne-Marie VAN STIPHOUDT
  • Publication number: 20230407092
    Abstract: Aqueous silicone emulsion compositions which cure utilising titanium-based reaction products as catalysts, and a process to prepare the same and their uses, are provided. The composition comprises (a) a titanium-based reaction product; (b) one or more silicon containing compounds having at least 2 or at least 3 hydroxyl and/or hydrolysable groups per molecule; (c) one or more surfactants; and (d) water. The titanium-based reaction product (a) is obtained or obtainable from a process comprising the steps of: (i) mixing a first ingredient, an alkoxy titanium compound having from 2 to 4 alkoxy groups with a second ingredient, a linear or branched polydiorganosiloxane having at least two terminal silanol groups per molecule and a viscosity of from 30 to 300,000 mPa·s at 25° C.; (ii) enabling the first and second ingredients to react together by stirring under vacuum to form a reaction product; and (iii) collecting the reaction product of step (ii).
    Type: Application
    Filed: November 16, 2021
    Publication date: December 21, 2023
    Inventors: Frederic GUBBELS, Tatiana DIMITROVA
  • Patent number: 11512237
    Abstract: A room temperature curable sealant/adhesive composition is disclosed. The room temperature curable sealant/adhesive composition comprises: A) one or more organopolysiloxanes; B) a hydrophilic material; C) a cross-linker; D) a titanate catalyst and/or a zirconate catalyst; and E) one or more optional ingredients. A silicone elastomer formed therefrom and related methods are also disclosed. In general, such compositions (upon several hours of contact with water) do not repel water, but rather retain and pick-up water and/or can be wetted by aqueous materials subsequent to exposure.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: November 29, 2022
    Assignee: DOW SILICONES CORPORATION
    Inventors: Tommy Detemmerman, Tatiana Dimitrova, Frederic Gubbels
  • Patent number: 11485936
    Abstract: The present invention relates to fabric care compositions comprising a silicone based material cured via a condensation cure chemistry, and at least one fabric care ingredient, in an acceptable medium. Also disclosed is a process to prepare the fabric care compositions and uses of said fabric care compositions.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: November 1, 2022
    Assignee: Dow Silicones Corporation
    Inventors: Stephane S. Ugazio, Tatiana Dimitrova
  • Patent number: 11359167
    Abstract: The present disclosure relates to fabric-care compositions comprising an uncured silicone based polymer. In particular, the present disclosure relates to fabric-care compositions comprising at least one uncured silicone based polymer; and at least one fabric-care ingredient, optionally in an acceptable medium. Also disclosed are processes to prepare the fabric-care compositions and uses of the fabric-care compositions.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: June 14, 2022
    Assignee: DOW SILICONES CORPORATION
    Inventors: Tatiana Dimitrova, Jonathan Thill, Severine Cauvin
  • Publication number: 20220002563
    Abstract: A mixture curable in the presence of a suitable metallic catalyst to provide an intumescent coating material. The mixture comprises: a siloxane polymer; a cross-linker for cross-linking the siloxane polymer; filler, wherein the filler comprises char reinforcing filler; and an intumescent ingredient. The intumescent ingredient comprises a phosphorus containing compound or a composition comprising a phosphorus containing compound. The mixture comprises 5 to 20% by weight of the phosphorus containing compound or composition comprising a phosphorus containing compound. The intumescent ingredient comprises 10 to 40% by weight expandable graphite.
    Type: Application
    Filed: November 28, 2019
    Publication date: January 6, 2022
    Inventors: Simon Harry Shepherd, Laura Louise Jordan, Anil Naik, Tatiana Dimitrova, Anne-Marie Van Stiphoudt
  • Patent number: 11090253
    Abstract: Cosmetic compositions comprising silicone based materials cured via a condensation cure chemistry are disclosed. In particular, the present disclosure relates to cosmetic compositions comprising a silicone based gel cured via a condensation cure chemistry; and at least one cosmetic ingredient, optionally in a cosmetically acceptable medium. Preparation methods and uses of the cosmetic compositions are also disclosed.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: August 17, 2021
    Assignee: DOW SILICONES CORPORATION
    Inventors: Sylvie Bouzeloc, Tatiana Dimitrova, Charlene Fournier, Frederic Gubbels
  • Publication number: 20210147682
    Abstract: A condensation cure organosiloxane composition is disclosed. The composition may be used as an electrically insulating sealant and/or adhesive. The composition is a silicone elastomer composition comprising: (a) a polydiorganosiloxane having at least two —OH or hydrolysable groups per molecule; (b) a cross-linker which will cross-link polydiorganosiloxane (a); (c) a filler component comprising (i) a maximum of 25% by weight of the composition of calcium carbonate and/or silica, and (ii) an amount of one or more fibrous fillers selected from mineral fibers, bulk fibers, refractory fibers, basalt fibers, or mixtures thereof; (d) a condensation curing catalyst; and optionally (e) one or more additives. Upon cure, the composition provides a silicone elastomer having a volume resistivity which is ?2×1015 ?·cm.
    Type: Application
    Filed: March 15, 2019
    Publication date: May 20, 2021
    Applicant: Dow Silicones Corporation
    Inventors: Tatiana DIMITROVA, Anne-Marie VAN STIPHOUDT
  • Publication number: 20210108114
    Abstract: A room temperature curable sealant/adhesive composition is disclosed. The room temperature curable sealant/adhesive composition comprises: A) one or more organopolysiloxanes; B) a hydrophilic material; C) a cross-linker; D) a titanate catalyst and/or a zirconate catalyst; and E) one or more optional ingredients. A silicone elastomer formed therefrom and related methods are also disclosed. In general, such compositions (upon several hours of contact with water) do not repel water, but rather retain and pick-up water and/or can be wetted by aqueous materials subsequent to exposure.
    Type: Application
    Filed: December 23, 2020
    Publication date: April 15, 2021
    Inventors: Tommy DETEMMERMAN, Tatiana DIMITROVA, Frederic GUBBELS
  • Patent number: 10961392
    Abstract: A condensation cure organosiloxane composition is disclosed. The composition may be used as an electrically insulating sealant and/or adhesive. The composition comprises: (a) a polydiorganosiloxane having at least two —OH or hydrolysable groups per molecule; (b) a cross-linker which will cross-link polydiorganosiloxane (a); (c) a filler component comprising calcium carbonate; (d) a filler treating agent comprising one or more carboxylated liquid organic polymers; (e) a condensation curing catalyst; and optionally (f) one or more additives. Upon cure, the composition provides a silicone elastomer having a volume resistivity which is ?2×1015 ?·cm.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: March 30, 2021
    Assignee: DOW SILICONES CORPORATION
    Inventors: Tatiana Dimitrova, Anne-Marie Van Stiphoudt, Chelsea Quinn
  • Publication number: 20210054202
    Abstract: A condensation cure organosiloxane composition is disclosed. The composition may be used as an electrically insulating sealant and/or adhesive. The composition comprises: (a) a polydiorganosiloxane having at least two —OH or hydrolysable groups per molecule; (b) a cross-linker which will cross-link polydiorganosiloxane (a); (c) a filler component comprising calcium carbonate; (d) a filler treating agent comprising one or more carboxylated liquid organic polymers; (e) a condensation curing catalyst; and optionally (f) one or more additives. Upon cure, the composition provides a silicone elastomer having a volume resistivity which is ?2×1015 ?·cm.
    Type: Application
    Filed: March 15, 2019
    Publication date: February 25, 2021
    Inventors: Tatiana DIMITROVA, Anne-Marie VAN STIPHOUDT, Chelsea QUINN
  • Patent number: 10907401
    Abstract: Improvements in or relating to transparent units (such as glazing units, which may also be referred to as insulating glass units) and their methods of manufacture are disclosed. Each transparent unit comprises first and second panes of transparent material each having an outwardly facing side and an inwardly facing side. Each inwardly facing side is at least partially coated with a reactive interlayer made by the application of a reactive interlayer coating composition. The inwardly facing side of the first and second panes of transparent material are spaced apart partially or totally by a transparent spacer made of a pre-cured condensation curable material or a substantially pre-cured condensation curable material adhered to the inwardly facing side of the first and second panes of transparent material by way of the reactive interlayers. In various embodiments, the pre-cured condensation curable material is a silicone based material.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: February 2, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Frederic Gubbels, Victor Baily, Tatiana Dimitrova, Davide Bianchi
  • Patent number: 10889738
    Abstract: A room temperature curable sealant/adhesive composition is disclosed. The room temperature curable sealant/adhesive composition comprises: (A) one or more organopolysiloxanes; (B) a hydrophilic material; (C) a cross-linker; (D) a titanate or zirconate catalyst; and (E) one or more optional ingredients. A silicone elastomer formed therefrom and related methods are also disclosed.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: January 12, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Tommy Detemmerman, Tatiana Dimitrova, Frederic Gubbels
  • Publication number: 20200392431
    Abstract: The present invention relates to fabric care compositions comprising a silicone based material cured via a condensation cure chemistry, and at least one fabric care ingredient, in an acceptable medium. Also disclosed is a process to prepare the fabric care compositions and uses of said fabric care compositions.
    Type: Application
    Filed: August 3, 2017
    Publication date: December 17, 2020
    Applicant: Dow Silicones Corporation
    Inventors: Stephane S. UGAZIO, Tatiana DIMITROVA
  • Publication number: 20200337981
    Abstract: The present disclosure relates to cosmetic compositions comprising an uncured silicone based polymer. In particular, the present disclosure relates to cosmetic compositions comprising an uncured silicone based polymer; and at least one cosmetic ingredient, optionally in a cosmetically acceptable medium. The present disclosure also relates to preparation methods and uses of the cosmetic compositions.
    Type: Application
    Filed: December 17, 2018
    Publication date: October 29, 2020
    Inventors: Tatiana DIMITROVA, Charlene FOURNIER
  • Publication number: 20200339915
    Abstract: The present disclosure relates to fabric-care compositions comprising an uncured silicone based polymer. In particular, the present disclosure relates to fabric-care compositions comprising at least one uncured silicone based polymer; and at least one fabric-care ingredient, optionally in an acceptable medium. Also disclosed are processes to prepare the fabric-care compositions and uses of the fabric-care compositions.
    Type: Application
    Filed: December 17, 2018
    Publication date: October 29, 2020
    Inventors: Tatiana DIMITROVA, Jonathan THILL, Severine CAUVIN
  • Patent number: 10774250
    Abstract: A method of adhering a substantially cured or fully cured silicone based material to a substrate surface is provided. The silicone based material is obtained by curing a condensation curable composition. The condensation curable composition comprises: (I) at least one condensation curable silyl terminated polymer having at least one hydrolysable and/or hydroxyl functional group(s) per molecule; (II) a cross-linker selected from the group of silanes having at least two hydrolysable groups per molecule; and/or silyl functional molecules having at least two silyl groups, each silyl group containing at least one hydrolysable group; and (III) a condensation catalyst selected from the group of titanates and zirconates. The method includes applying a reactive interlayer to the substrate surface and applying pressure to sandwich the reactive interlayer between a surface of the silicone based material and the substrate surface, thereby causing chemical bonding of the silicone based material to the substrate.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: September 15, 2020
    Assignee: DOW SILICONES CORPORATION
    Inventors: Gregory Chambard, Tommy Detemmerman, Tatiana Dimitrova, Frederic Gubbels
  • Publication number: 20200214967
    Abstract: Cosmetic compositions comprising silicone based materials cured via a condensation cure chemistry are disclosed. In particular, the present disclosure relates to cosmetic compositions comprising a silicone based gel cured via a condensation cure chemistry; and at least one cosmetic ingredient, optionally in a cosmetically acceptable medium. Preparation methods and uses of the cosmetic compositions are also disclosed.
    Type: Application
    Filed: August 3, 2017
    Publication date: July 9, 2020
    Inventors: Sylvie BOUZELOC, Tatiana DIMITROVA, Charlene FOURNIER, Frederic GUBBELS
  • Publication number: 20200071988
    Abstract: Improvements in or relating to transparent units (such as glazing units, which may also be referred to as insulating glass units) and their methods of manufacture are disclosed. Each transparent unit comprises first and second panes of transparent material each having an outwardly facing side and an inwardly facing side. Each inwardly facing side is at least partially coated with a reactive interlayer made by the application of a reactive interlayer coating composition. The inwardly facing side of the first and second panes of transparent material are spaced apart partially or totally by a transparent spacer made of a pre-cured condensation curable material or a substantially pre-cured condensation curable material adhered to the inwardly facing side of the first and second panes of transparent material by way of the reactive interlayers. In various embodiments, the pre-cured condensation curable material is a silicone based material.
    Type: Application
    Filed: February 7, 2019
    Publication date: March 5, 2020
    Inventors: Frederic GUBBELS, Victor BAILY, Tatiana DIMITROVA, Davide BIANCHI
  • Publication number: 20200063009
    Abstract: A room temperature curable sealant/adhesive composition is disclosed. The room temperature curable sealant/adhesive composition comprises: (A) one or more organopolysiloxanes; (B) a hydrophilic material; (C) a cross-linker; (D) a titanate or zirconate catalyst; and (E) one or more optional ingredients. A silicone elastomer formed therefrom and related methods are also disclosed.
    Type: Application
    Filed: November 18, 2016
    Publication date: February 27, 2020
    Inventors: Tommy DETEMMERMAN, Tatiana DIMITROVA, Frederic GUBBELS