Patents by Inventor Abdus Salam

Abdus Salam 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: 20250347056
    Abstract: A glyoxylate starch may be formed by dispersing a starch in a liquid to form a starch slurry. The starch may be one or more of a cationic starch, nonionic starch, and an anionic starch. 2-chloracetamide is added to the starch slurry mixture to form a first reaction mixture. The temperature of the first reaction mixture may then be raised, and then cooled to form a modified starch, and glyoxal may be added to the modified starch solution to form a second reaction mixture that may then be stirred to produce a glyoxylate starch.
    Type: Application
    Filed: May 21, 2025
    Publication date: November 13, 2025
    Inventor: Abdus Salam
  • Patent number: 12331467
    Abstract: A glyoxylate starch may be formed by dispersing a starch in a liquid to form a starch slurry. The starch may be one or more of a cationic starch, nonionic starch, and an anionic starch. 2-chloracetamide is added to the starch slurry mixture to form a first reaction mixture. The temperature of the first reaction mixture may then be raised, and then cooled to form a modified starch, and glyoxal may be added to the modified starch solution to form a second reaction mixture that may then be stirred to produce a glyoxylate starch.
    Type: Grant
    Filed: March 23, 2023
    Date of Patent: June 17, 2025
    Assignee: Board of Trustees of Western Michigan University
    Inventor: Abdus Salam
  • Patent number: 12168842
    Abstract: Aqueous cellulosic binder comprising modified cellulose (carboxymethylcellulose and/or sodium carboxymethylcellulose), water, and optionally binder modifier (crosslinking agent and/or wet strength agent); with a weight ratio of water modified cellulose of 99.9:0.1 to 1,000:500, with a weight ratio of binder modifier:modified cellulose of 1:2 to 1:1,000; wherein crosslinking agent comprises carboxylic acid having two or more carboxyl groups; and wherein wet strength agent comprises a reactive functional group (halide, chloride, fluoride, hydroxyl). A method of making aqueous cellulosic binder comprising contacting modified cellulose with water to form modified cellulose solution; and optionally contacting modified cellulose solution with binder modifier to form aqueous cellulosic binder. A nonwoven fabric comprising fiber web (85-99.9 wt. %); and cured cellulosic binder (0.1-15 wt. %). An article formed from the nonwoven fabric.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: December 17, 2024
    Assignee: Glatfelter Corporation
    Inventors: Abdus Salam, Timothy Kistemaker, Kirk Stallsmith, Mark A. Lemere
  • Publication number: 20240327558
    Abstract: Embodiments of the present invention include a grafted aqueous carboxymethyl cellulose (CMC) binder comprising CMC chemically bonded with a monomer, where the CMC has a weight ratio of water to CMC of from about 99.9:0.1 to about 1,000:500, wherein the monomer is characterized by a weight ratio of monomer to CMC of from about 1:1 to about 1:1,000, and non-woven fabrics and articles including CMC binders, and methods of manufacture of the same. Aspects of the invention include a method of synthesizing a grafted aqueous carboxymethyl cellulose (CMC), the method comprising: contacting CMC with water to form a CMC solution. contacting the CMC solution with an initiator; contacting the CMC solution with a monomer to start grafting polymerization reaction between the CMC and a monomer. In some embodiments, the binder and non-woven fabrics including the same are non-toxic and biodegradable.
    Type: Application
    Filed: March 4, 2024
    Publication date: October 3, 2024
    Inventor: Abdus Salam
  • Patent number: 11993877
    Abstract: A nonwoven fabric comprising a fiber web in an amount of 85-99.99 wt. %, and a cured natural binder in an amount of 0.01-15 wt. %; wherein the fiber web comprises natural fibers and synthetic fibers; wherein natural fibers are present in the nonwoven fabric in an amount of 70-90 wt. %; wherein synthetic fibers are present in the nonwoven fabric in an amount of from 10-30 wt. %; wherein the cured natural binder comprises modified cellulose and a strengthening agent in a weight ratio of strengthening agent to modified cellulose of 1:2 to 1:1,000, wherein modified cellulose comprises CMC and/or sodium CMC, wherein the strengthening agent comprises a crosslinking agent and/or a wet strength agent, wherein the crosslinking agent comprises a carboxylic acid having two or more carboxyl groups, and wherein the wet strength agent comprises a reactive functional group selected from the group consisting of halide, chloride, fluoride, hydroxyl, and combinations thereof.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 28, 2024
    Assignee: Glatfelter Corporation
    Inventors: Abdus Salam, Timothy Kistemaker
  • Publication number: 20240018344
    Abstract: A biodegradable bioplastic may be formed from starch or cellulose. A carbohydrate may be reacted with chloroacetamide and further reacted with one or more cross-linking agents to obtain a bioplastic material. The bioplastic material may be insoluble in water, and/or hydrophobic and/or substantially transparent. The bioplastic material may be formed into numerous shapes and structures. The bioplastic material may have high toughness, flexibility and/or moldability whereby the material is suitable for further processing into a wide variety of different shapes and structures. The bioplastic material may also be utilized as a barrier or coating on paper or other substrates for food packaging and other applications.
    Type: Application
    Filed: July 17, 2023
    Publication date: January 18, 2024
    Inventors: Abdus Salam, Kecheng Li
  • Publication number: 20230304226
    Abstract: A glyoxylate starch may be formed by dispersing a starch in a liquid to form a starch slurry. The starch may be one or more of a cationic starch, nonionic starch, and an anionic starch. 2-chloracetamide is added to the starch slurry mixture to form a first reaction mixture. The temperature of the first reaction mixture may then be raised, and then cooled to form a modified starch, and glyoxal may be added to the modified starch solution to form a second reaction mixture that may then be stirred to produce a glyoxylate starch.
    Type: Application
    Filed: March 23, 2023
    Publication date: September 28, 2023
    Inventor: Abdus Salam
  • Publication number: 20220002921
    Abstract: A nonwoven fabric comprising a fiber web in an amount of 85-99.99 wt. %, and a cured natural binder in an amount of 0.01-15 wt. %; wherein the fiber web comprises natural fibers and synthetic fibers; wherein natural fibers are present in the nonwoven fabric in an amount of 70-90 wt. %; wherein synthetic fibers are present in the nonwoven fabric in an amount of from 10-30 wt. %; wherein the cured natural binder comprises modified cellulose and a strengthening agent in a weight ratio of strengthening agent to modified cellulose of 1:2 to 1:1,000, wherein modified cellulose comprises CMC and/or sodium CMC, wherein the strengthening agent comprises a crosslinking agent and/or a wet strength agent, wherein the crosslinking agent comprises a carboxylic acid having two or more carboxyl groups, and wherein the wet strength agent comprises a reactive functional group selected from the group consisting of halide, chloride, fluoride, hydroxyl, and combinations thereof.
    Type: Application
    Filed: January 31, 2019
    Publication date: January 6, 2022
    Inventors: Abdus Salam, Timothy Kistemaker
  • Publication number: 20210054548
    Abstract: Aqueous cellulosic binder comprising modified cellulose (carboxymethylcellulose and/or sodium carboxymethylcellulose), water, and optionally binder modifier (crosslinking agent and/or wet strength agent); with a weight ratio of water modified cellulose of 99.9:0.1 to 1,000:500, with a weight ratio of binder modifier:modified cellulose of 1:2 to 1:1,000; wherein crosslinking agent comprises carboxylic acid having two or more carboxyl groups; and wherein wet strength agent comprises a reactive functional group (halide, chloride, fluoride, hydroxyl). A method of making aqueous cellulosic binder comprising contacting modified cellulose with water to form modified cellulose solution; and optionally contacting modified cellulose solution with binder modifier to form aqueous cellulosic binder. A nonwoven fabric comprising fiber web (85-99.9 wt. %); and cured cellulosic binder (0.1-15 wt. %). An article formed from the nonwoven fabric.
    Type: Application
    Filed: January 31, 2019
    Publication date: February 25, 2021
    Inventors: Abdus Salam, Timothy Kistemaker, Kirk Stallsmith, Mark A. Lemere
  • Publication number: 20200085700
    Abstract: Formulations suitable for use with fibrous substrates are provided. The formulations provide increased wet strength, high dispersibility, and shape retention of premoistened fibrous substrates. Such formulations comprise at least one dielectric-adjusting solvent, and optionally water, coupling agents, salts, personal care components, hard surface cleaning components, or combinations thereof.
    Type: Application
    Filed: September 16, 2019
    Publication date: March 19, 2020
    Inventors: Brian Patrick Argo, Abdus Salam, Jennifer L. Faucett, Stephanie Petrina Boyce, Kevin Matthew Holtman, Daniel Peter Gardner, Arinne Nicole Lyman
  • Publication number: 20190242055
    Abstract: A chitosan-latex binder comprising chitosan and latex binder in a weight ratio of chitosan to latex binder of from about 1:10 to about 1:15,000. A method of making a chitosan-latex binder, the method comprising (a) contacting chitosan with an acidic solution to form a chitosan solution, and (b) contacting at least a portion of the chitosan solution with a latex binder to form the chitosan-latex binder, wherein the chitosan-latex binder is characterized by a chitosan to latex binder weight ratio of from about 1:10 to about 1:15,000.
    Type: Application
    Filed: March 10, 2017
    Publication date: August 8, 2019
    Applicant: Georgia-Pacific Nonwovens LLC
    Inventors: Abdus Salam, Timothy Kistemaker, Karen Marsh
  • Patent number: 9428865
    Abstract: Paper strength agents comprising a vegetable protein or polysaccharide and a cross linker are disclosed. Methods of preparing such agents and using them to increase the strength of a pulp product are also disclosed.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 30, 2016
    Assignee: North Carolina State University
    Inventors: Abdus Salam, Hasan Jameel, Lucian Lucia
  • Publication number: 20150361618
    Abstract: Paper strength agents comprising a vegetable protein or polysaccharide and a cross linker are disclosed. Methods of preparing such agents and using them to increase the strength of a pulp product are also disclosed.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 17, 2015
    Inventors: Abdus Salam, Hasan Jameel, Lucian Lucia
  • Patent number: 8975387
    Abstract: Compositions of matter are provided that include chitosan and a modified carbohydrate. The modified carbohydrate includes a carbohydrate component and a cross linking agent. The modified carbohydrate has increased carboxyl content as compared to an unmodified counterpart carbohydrate. A carboxyl group of the modified carbohydrate is covalently bonded with an amino group of chitosan. The compositions of matter provided herein may include cross linked starch citrate-chitosan and cross linked hemicellulose citrate-chitosan, including foams thereof. These compositions yield excellent absorbency and metal chelation properties. Methods of making cross linked modified carbohydrate-chitosan compounds are also provided.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: March 10, 2015
    Assignee: North Carolina State University
    Inventors: Richard A. Venditti, Joel J. Pawlak, Abdus Salam, Khaled Fathy El-Tahlawy