Patents by Inventor Roger H. Jansma

Roger H. Jansma 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).

  • Patent number: 5490904
    Abstract: There is provided a strength resin polymer for papermaking that has pendant alpha-hydroxy acetal substituents to (N-alkyl)(C.sub.1-2 alkyl)acrylamide mer units. There also is provided a process for preparation of such resin polymer by adduction of a pre-existing polymer, or the monomer precursors thereto, with an acetal-aldehyde reactant under alkaline conditions. There is provided such strength resin polymer in the form of a fluid liquid system, for instance a fluid solution or a fluid oil-continuous water-in-oil emulsion, particularly when such a system has a high concentration of resin polymer. There is provided activated polymer versions of certain of such resin polymers and paper compositions containing such activated polymer. There is also provided papermaking processes including the step of activating such resin polymer.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: February 13, 1996
    Assignee: Nalco Chemical Company
    Inventors: Roger H. Jansma, A. James Begala, Gary S. Furman
  • Patent number: 5401810
    Abstract: There is provided a strength resin polymer for papermaking that has pendant alpha-hydroxy acetal substituents to (N-alkyl)(C.sub.1-2 alkyl)acrylamide mer units. There also is provided a process for preparation of such resin polymer by adduction of a pre-existing polymer, or the monomer precursors thereto, with an acetal-aldehyde reactant under alkaline conditions. There is provided such strength resin polymer in the form of a fluid liquid system, for instance a fluid solution or a fluid oil-continuous water-in-oil emulsion, particularly when such a system has a high concentration of resin polymer. There is provided activated polymer versions of certain of such resin polymers and paper compositions containing such activated polymer. There is also provided papermaking processes including the step of activating such resin polymer.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: March 28, 1995
    Assignee: Nalco Chemical Company
    Inventors: Roger H. Jansma, A. James Begala, Gary S. Furman
  • Patent number: 5209823
    Abstract: A water-soluble dispersant which aids in the dispersion of polyester fibers during the preparation of a wet-laid nonwoven fiber mat, the water-soluble dispersant comprising:polyethylene glycol in an amount greater than about 80% by weight of the water-soluble dispersant:a phthalic acid ester moiety; anda monomeric glycol, wherein the phthalic acid ester moiety and the monomeric glycol are present in an amount less than about 20% by weight of the water-soluble dispersant.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: May 11, 1993
    Assignee: Nalco Chemical Company
    Inventors: Roger H. Jansma, James H. Smith
  • Patent number: 4980024
    Abstract: Superiority in retained slide angle of antiskid paper is achieved by spraying the paper with a composition of matter consisting essentially of an acrylamide, glycerine, balance antiskid aqueous silica sol.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: December 25, 1990
    Assignee: Nalco Chemical Company
    Inventors: Charles C. Payne, Raymond J. Novotny, Roger H. Jansma, Neil A. Marron
  • Patent number: 4605718
    Abstract: Water-soluble monomers and water-soluble polymers derived therefrom are disclosed. These materials can be used with other vinyl monomers to form water-soluble polymers which are reactive with cellulosic substrates to obtain drastically improved strength, particularly when applied in paper manufacture. The polymers contain at least two mole percent of a monomer represented by the chemical structure: ##STR1## wherein R is H, CH.sub.3, or C.sub.2 H.sub.5 ; andA is O, or N(R.sub.1); andB is CH.sub.2, CH.sub.2 CH.sub.2 O, ##STR2## and D is ##STR3## and wherein R.sub.1 is H, CH.sub.3, C.sub.2 H.sub.5, (CH.sub.2 CH.sub.2 O).sub.n H, or (B).sub.q D, and wherein q is from 1-6, except when B contains nitrogen in which case q is always one; and wherein R.sub.2 is H, CH.sub.3, C.sub.2 H.sub.5, or (CH.sub.2 CH.sub.2 O).sub.n H; and wherein R.sub.4 and R.sub.5 may be the same or different and are, for each individual occurrence, H, CH.sub.3, C.sub.2 H.sub.5 ; and wherein Z is from the group Cl, Br, I, NO.sub.3, SO.sub.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: August 12, 1986
    Assignee: Nalco Chemical Company
    Inventors: Roger H. Jansma, Karen R. Sandberg
  • Patent number: 4508594
    Abstract: Water-soluble monomers and water-soluble polymers derived therefrom are disclosed. These materials can be used with other vinyl monomers to form water-soluble polymers which are reactive with cellulosic substrates to obtain drastically improved strength, particularly when applied in paper manufacture.The polymers contain at least two mole percent of a monomer represented by the chemical structure: ##STR1## wherein R is --H, --CH.sub.3, or --C.sub.2 H.sub.5 ; andA is O, or N(R.sub.1); andB is CH.sub.2, CH.sub.2 CH.sub.2 O, --CH.sub.2).sub.n N(R.sub.1) (CH.sub.2).sub.m, ##STR2## and D is ##STR3## and wherein R.sub.1 is --H, --CH.sub.3, --C.sub.2 H.sub.5, (CH.sub.2 CH.sub.2 O).sub.n H, or (B).sub.q D, and wherein q is from 1-6, except when B contains nitrogen in which case q is always one; and wherein R.sub.2 is --H, --CH.sub.3, --C.sub.2 H.sub.5, or (CH.sub.2 CH.sub.2 O).sub.n H; and wherein R.sub.3 is ##STR4## and wherein R.sub.4 and R.sub.
    Type: Grant
    Filed: June 28, 1984
    Date of Patent: April 2, 1985
    Assignee: Nalco Chemical Company
    Inventors: Roger H. Jansma, Karen R. Sandberg
  • Patent number: 4233411
    Abstract: A blend which contains homopolymers useful for imparting wet and dry strength to pulp and paper fibers which comprises a major amount of non-ionic polyacrylamide, together with glyoxal to impart crosslinking and a cationic regulator selected from the group consisting of a low molecular weight dimethyl amine epichlorohydrin copolymer, a low molecular weight ethylene dichloride ammonia condensation polymer, and a polyvinyl benzyl trimethyl ammonium chloride polymer. A buffer such as tetrasodium pyrophosphate may be used. A dosage of 0.2-5% by weight (preferred 0.5-2% by weight) based on the dry weight of fiber is utilized.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: November 11, 1980
    Assignee: Nalco Chemical Co.
    Inventors: Edward G. Ballweber, Roger H. Jansma, Kenneth G. Phillips
  • Patent number: 4217425
    Abstract: A blend which contains homopolymers useful for imparting wet and dry strength to pulp and paper fibers which comprises a major amount of non-ionic polyacrylamide, together with glyoxal to impart crosslinking and polymeric diallyldimethyl ammonium chloride (DADMAC) as a cationic modifier. A buffer such as tetrasodium pyrophosphate may be used. A dosage of 0.2-5% by weight (preferred 0.5-2% by weight) based on the dry weight of fiber is utilized.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: August 12, 1980
    Assignee: Nalco Chemical Company
    Inventors: Edward G. Ballweber, Roger H. Jansma, Kenneth G. Phillips
  • Patent number: 4084034
    Abstract: Electroconductive paper useful typically in making copies by an electrostatic process may be made by incorporating therein NaCl and a polymer consisting of units derived from diallyl dimethyl ammonium chloride.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: April 11, 1978
    Assignee: Nalco Chemical Company
    Inventors: Roger H. Jansma, William E. Albrecht
  • Patent number: 3954680
    Abstract: A method of promoting alkaline viscosity stability in polymers formed from a secondary amine, an epihalohydrin and an amount of a crosslinking agent such as a primary amine or ammonia which would cause gelation, comprising reacting said polymer with a tertiary amine; a preferred polymer is formed of epichlorohydrin, dimethylamine and ammonia stabilized with trimethylamine.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: May 4, 1976
    Assignee: Nalco Chemical Company
    Inventor: Roger H. Jansma