Abstract: Flexible polyurethane foams are characterized in having slow recovery times, low foam densities and very low compression sets. The foams are useful in human comfort applications such as pillows and mattresses.
Type:
Grant
Filed:
April 20, 2020
Date of Patent:
October 10, 2023
Assignee:
Dow Global Technologies LLC
Inventors:
Gianluca Casagrande, Federico La Terra, Antonio Papa
Abstract: Provided are a modified polyether polyol and the use thereof in polyurethane foam materials. The method for preparing a modified polyether polyol comprises the following steps: 1) reacting a compound A with a polyether polyol, wherein the compound A is an anhydride and/or dicarboxylic acid compound containing a polymerizable double bond, preferably selected from one or two of maleic anhydride and itaconic anhydride, preferably maleic anhydride; and 2) reacting the product obtained in step 1) with an epoxy compound containing a polymerizable double bond in the presence of a catalyst, in order to prepare the modified polyether polyol. The modified polyether polyol obtained by means of the preparation method has more active sites, uses the polymerizable double bond for blocking, is used as a dispersion stabilizer for the synthesis of copolymer polyols, and has the characteristics of a better dispersion stability, filterability and a low viscosity.
Type:
Grant
Filed:
December 26, 2018
Date of Patent:
October 10, 2023
Assignee:
WANHUA CHEMICAL GROUP CO., LTD.
Inventors:
Fuguo Li, Yang Liu, Changxun Ju, Naihua Jiang, Bin Liu, Chengqun Qin, Lunpeng Wang
Abstract: Embodiments relate to a porous polyurethane polishing pad for use in a chemical mechanical planarization (CMP) process of semiconductors and a process for preparing the same. According to the embodiments, the size and distribution of the plurality of pores contained in the porous polyurethane polishing pad can be adjusted. Thus, it is possible to provide a porous polyurethane polishing pad that has enhanced physical properties such as a proper level of withstand voltage, excellent polishing performance (i.e., polishing rate), and the like.
Type:
Grant
Filed:
April 19, 2019
Date of Patent:
September 26, 2023
Assignee:
SK enpulse Co., Ltd.
Inventors:
Hye Young Heo, Jang Won Seo, Jong Wook Yun, Sunghoon Yun, Jaein Ahn
Abstract: Disclosed is a polyurethane foam formulation based on conventional polyether and novolac polyols with, in particular, MDI for the production of soft-elastic PUR moulded foams with viscoelastic properties, in particular for sound insulation with foams based thereon.
Abstract: A method for producing a polyurethane foam includes mixing and reacting a polyurethane foam raw material containing a polyol, an isocyanate, a foaming agent, and a catalyst, wherein the polyurethane foam raw material contains sodium bicarbonate and an organic solid acid such as citric acid or malic acid.
Abstract: Disclosed are a polyurethane foam composition for sound-absorbing materials, a method for manufacturing a polyurethane foam and a polyurethane foam manufactured using the method. Particularly, disclosed are a composition containing a polyol mixture including a polyol and an additive, and isocyanate, and the manufacture of a low-density polyurethane foam for sound-absorbing materials, which is imparted with improved appearance formability, reduced smell and enhanced sound absorption performance by controlling the content of the composition and the conditions for foaming the composition.
Type:
Grant
Filed:
August 24, 2020
Date of Patent:
September 5, 2023
Assignees:
Hyundai Motor Company, Kia Motors Corporation, PIUSYS Co., Ltd., NVH Korea, Inc.
Inventors:
Jung Wook Lee, Se Hoon Kim, Ji Wan Kim, Jin Hyung Lee, Seong Je Kim, Dae Yong Kim, Jong Hyun Ryu, Myung Sik Lee, Min Seo Wu
Abstract: This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure. The disclosure provides aromatic polyester polyether polyols and compositions comprising such polyols. The disclosed aromatic polyester polyether polyols and compositions including same are the products of the transesterification reaction of polyethylene terephthalate (“PET”) and an ethoxylated triol, namely glycerin or trimethylolpropane, wherein the degree of ethoxylation is from 1 to 9 moles. At least some of the PET used to generate the aromatic polyester polyether polyols is derived from recycled PET. The disclosed aromatic polyester polyether polyols have utility in preparing polyurethane materials, for example.
Type:
Grant
Filed:
February 1, 2022
Date of Patent:
September 5, 2023
Assignee:
Talaco Holdings, LLC
Inventors:
Frank A. Queen, Robert Keith Salsman, Bennett McDonald Pearson
Abstract: An alcohol-resistant siliconized polycarbonate polyurethane can include a soft segment and a hard segment. The soft segment can include a polycarbonate polyol and a polysiloxane, which can be present in an amount less than the polycarbonate polyol. The hard segment can include an isocyanate and a chain extender. Peripherally inserted central catheter (PICC) devices can include one or more components that are at least partially formed from one or more formulations of the siliconized polycarbonate polyurethane catheter. The PICC devices can withstand alcohol locking, and can be power injectable both before and after alcohol locking events.
Type:
Grant
Filed:
November 19, 2018
Date of Patent:
September 5, 2023
Assignee:
Piper Access, LLC
Inventors:
Jay Allen Muse, Nathaniel J. Fredin, Sriram Venkataramani
Abstract: A solidified, conformable porous composite having interconnected pores and containing thermally-expanded polymer microspheres and a particulate filler material is disclosed herein. An energy storage device containing a solidified, conformable porous composite having interconnected pores and comprising thermally-expanded polymer microspheres and particulate filler material is disclosed herein. A method of making a solidified, conformable porous composite in which no solvent is introduced into and extracted from the composite in the formation of pores is disclosed herein.
Type:
Grant
Filed:
August 4, 2017
Date of Patent:
September 5, 2023
Assignee:
Amtek Research International LLC
Inventors:
Daniel Wandera, Jeff M. Frenzel, Richard W. Pekala
Abstract: A composition kit for preparing a polyurethane foam and a preparation method and applications thereof are provided. The composition kit for preparing a polyurethane foam includes a first component and a second component. The first component and the second component are disposed in different containers respectively. The first component includes an organic isocyanate and a low boiling point foaming agent. The second component includes a polyol composition, a high boiling point foaming agent, a composite catalyst, water, and a silicone oil.
Abstract: Processes for making a molded flexible foam. The processes include: (a) depositing a foam-forming reaction mixture onto a surface of a mold cavity, and (b) allowing the foam-forming reaction mixture to react in the mold cavity. The foam-forming reaction mixture comprises: (1) a polyisocyanate present in an amount of less than 45% by weight, based on the total weight of the foam-forming reaction mixture; (2) an isocyanate-reactive composition comprising at least 50% by weight, based on the total weight of polyol in the isocyanate-reactive composition, of a polyether polyol having a functionality of greater than 2, an oxyethylene content of 0 to 50% by weight, based on the total weight of the polyether polyol, more than 50 mol % of primary OH groups, and an OH number of 8 to 112 mg KOH/g; (3) a blowing agent comprising water present in an amount of at least 0.
Type:
Grant
Filed:
January 22, 2021
Date of Patent:
August 29, 2023
Assignee:
Covestro LLC
Inventors:
Michelle L. Montgomery, Brandon W. Parks
Abstract: Embodiments of the present disclosure are directed towards formulated polyol compositions that include a sucrose propoxylated polyol, a polyether triol, and a propoxylated homopolymer triol.
Abstract: This invention relates to an in-situ formed polyether polyol blend having an overall functionality of 2 to 3 and an overall hydroxyl number of 40 to 220 mg KOH/g. A process for preparing these in-situ formed polyether polyol blends is also disclosed. These in-situ formed polyether polyol blends are suitable for a process of preparing viscoelastic flexible polyurethane foams.
Abstract: The present disclosure provides a composition for manufacturing a polyurethane polishing pad. The composition includes 15 to 25 wt % of MBCA, 25 to 45 wt % of isocyanates, 15 to 45 wt % of polyols, 5 to 35 wt % of EOPO, and 1 to 5 wt % of additives. The polyurethane polishing pad made from the composition of the present disclosure has a hardness within a range of 40 to 70 shore D, an elongation within a range of 200 to 400%, a density within a range of 0.7 to 0.9 g/cc, a modulus within a range of 25000 to 40000 kg/cm2, and a tensile stress within a range of 120 to 320 kg/cm2.
Type:
Grant
Filed:
October 30, 2019
Date of Patent:
August 8, 2023
Assignee:
XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.
Abstract: This document presents algae-derived antimicrobial fiber substrates, and a method of making the same. The fiber may be a synthetic fiber, but can also be formed as a cellulosic (e.g., cotton). In various implementations, an algae-derived antimicrobial fiber substrate can be made to have identical properties and characteristics of nylon-6 of nylon 6-6 polymer or the like, and yet contain antimicrobial, anti-viral, and/or flame retardant algal derived substances. Any of various species of red algae, brown algae, blue-green algae, and brown seaweed (marine microalgae and/or macroalgae) are known to contain a high level of sulfated polysaccharides with inherent antimicrobial, antiviral, and flame-retardant properties, and can be used as described herein. Additionally disclosed are algae-derived flexible foams, whether open-cell or closed-cell, with inherent antimicrobial, antiviral, and flame resistant properties.
Type:
Grant
Filed:
November 18, 2016
Date of Patent:
July 18, 2023
Assignee:
Bloom Holdings, LLC
Inventors:
Mark Ashton Zeller, Ryan Hunt, Robert Falken
Abstract: Processes for manufacturing novolacs and resoles from lignin are disclosed. A phenol-aldehyde-lignin dispersion is formed which can then be used to make either a novolac or a resole, depending upon the catalysts used.
Type:
Grant
Filed:
September 25, 2020
Date of Patent:
July 11, 2023
Inventors:
Anthony Maiorana, Srirama N. Maddipatla Venkata, Stephen W. Arbuckle, Ganapathy Viswanathan
Abstract: Methods and materials are described for preparing organic-inorganic hybrid gel compositions where a sulfur-containing cross-linking agent covalently links the organic and inorganic components. The gel compositions are further dried to provide porous gel compositions and aerogels. The mechanical and thermal properties of the dried gel compositions are also disclosed.
Type:
Grant
Filed:
September 18, 2019
Date of Patent:
July 4, 2023
Assignee:
Aspen Aerogels, Inc.
Inventors:
Owen R Evans, Wenting Dong, Kiranmayi Deshpande
Abstract: A tertiary amine compound is shown and described herein. The tertiary amine is a reaction product of an isocyanate and a compound bearing an active hydrogen and a bicyclic tertiary amine in its molecule. The tertiary amine compounds have been found to be suitable as catalysts for producing polyurethanes. Also shown and described are processes employing the tertiary amine compounds in a reaction of an isocyanate and an alcohol in the presence of the tertiary amine compounds. Further, also shown and described is a method for making the tertiary amine.
Type:
Grant
Filed:
July 10, 2018
Date of Patent:
June 20, 2023
Assignee:
Momentive Performance Materials GmbH
Inventors:
Gnuni Karapetyan, Jose Godoy, Alberto Giovanni Melle
Abstract: This disclosure relates to a foamable resin composition containing a nitrogen gas-generating compound and methods of using the composition for loss circulation control.
Type:
Grant
Filed:
August 19, 2020
Date of Patent:
May 30, 2023
Assignee:
Saudi Arabian Oil Company
Inventors:
Vikrant Wagle, Abdullah AlYami, Ali Al-Safran, Mohammad Alharthi
Abstract: Apparatus and methods for alternative coatings applicable to metal are disclosed. According to one embodiment, an apparatus comprises a composition having, an ethylene acrylic acid copolymer; a neutralizing base; and water. The ethylene acrylic acid copolymer is about 15 percent to about 45 percent by weight concentration of the water. The apparatus further comprises metal coated with the composition.
Type:
Grant
Filed:
September 15, 2016
Date of Patent:
April 25, 2023
Assignee:
G3 Enterprises, Inc.
Inventors:
John Cunningham, Kenneth Metzger, Timmy Sath Ka